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Патент USA US2128567

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Allg# 30, 1933-
R. w. WILSON ET A1.
ì 2,128,567
DISPENSING PACKAGE FOR LIQUIDS
Filed April l, 1937
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2 Sheets-Sheet l '
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für Mwl MM M
' Egg@
Patented Aug. 30, 1938
.
.
29E
UNITED STATES PATENT
FFHQE
_ 2,128,567
DISPENSING PACKAGE Fon manips
Ralph W. Wilson, New York, and Brent F. Ca
hoon, Forest Hills, N. Y., assignors to Captive
Closures, Inc., New York, N. Y., a corporation
of Delaware
Application April 1, 1937, Serial No. 134,206
19 Claims. (Cl. 221-14'7)
This invention relates to dispensing packages
In this connection, it is noted that although
for liquids.
the package will ordinarily be inverted for dis
In an application ñled September 16, 1936, pensing, the terms “top”, “bottom”, “up”, “down”
Serial No. 101,046, Patent No. 2,117,296, applicant
¿5 Cahoon has disclosed several different forms of a
dispensing package in which the liquid is ejected
A’by a pumping action.
and the like, will be used herein as referring to
the upright position of the container unless oth- -5
erwise speciiied.
'
ì
According to the invention in its entirety, the
It is an object of the present invention to» provide a dispensing package of the general type dis10 closed in said application 101,046, in which certain of the parts are of a more simple construc»tion and capable of more economical production.
With this and other objects in View the invention consists in the features, combinations, de-
cap, upon disengagement of the threads, becomes
a pumping element. To this end, there is pro
vided means whereby the cap is capable of a lim- l0
ited axial reciprocation with respect to the bottle
neck when the threads i6, Il are disengaged. In
the present exempliñcation, carried by the bottle
neck, as later described, is an outwardly and
15 tails of construction and arrangement of parts
which will first be described in connection with
downwardly extending locking or limiting ñange 15
1.6 located not far below the bottle mouth. Just
the accompanying drawings and then more particularly pointed out.
In the drawings,-20
Figure 1 is a vertical sectional View of a package, including container and cap, constructed in
above the cap thread il is an internal stop shoul
der 19 arranged to engage flange I8 upon upward
movement of the cap, to limit such movement and
accordance with the present invention, showing
the cap closed;
Figure 2 is a similar view sho-wing the cap open
25 and the container inverted for dispensing;
Figure 3 is a sectional View (enlarged) taken
on the line 3_3 of Figure 1;
Figure 4 is a plan view (enlarged) of one of the
parts;
30
Figure 5 is a vertical sectional View (enlarged)
"
of a modiñed check valve;
v
lock the cap against removal.
20
The ñange i3 and shoulder i9 may convenient
ly be constructed and assembled as described in
said application Serial No. 101,046. As there
shown and described, the ii‘ange is substantially
circular and“ the co-operating shoulder is so 25
formed that the in_ner edge deñnes an oval or el
lipse. The major axis of this oval is somewhat
greater than the diameter of the lower, contact
ing edge of the flange and the minor axis is some
what less than such diameter. In assembling the 30
parts, liange and shoulder are brought into con
Figure 6 is a similar view of a further modiñcation of a check valve;
Figure 7 is a top plan View of the check valve
tact and application of the necessary force or
pressure causes the somewhat yieldable metal
ñange to be deformed to oval shape. As this oval
k35 unit of Figure 6;
Figures 8 and 9 are views similar to Figures 1
is slightly smaller than the oval defined by the 35
shoulder, the shoulder can pass the flange.
and 2, illustrating a modiñed form of package,
and
Figures 10 and 11 are similar views illustrating
40 a further modification.
Referring to the drawings, the embodiment il-
Thereupon, the flange returns to circular form by
virtue of its inherent resiliency and thereafter
the shoulder underlies the ñange- in the manner
here shown. In referring to circles and ovals, it 40
is to be understood that the same may be con
lustrated as an example in Figures 1 and 2 com-
tinuous or interrupted.
,
prises a container in the form of a glass bottle or
ñask il having a neck l2. Associated with this
45 container, in forming the complete package, is a
cap i4 having a skirt I5 which telescopes over`
the bottle neck. This cap may conveniently be
Analternative construction, also described and
shown in said application permits the use of a
circular shoulder. In this case, the ilange is 45
slitted and can contract sufliciently to pass the
shoulder.
formed of molded plastic material.
There is provided means for releasably locking
Upon disengagement of the threads, the cap'is
_free to be reciprocated, its range of movement
being fixed in one direction by the engagement 50
50 or holding the cap in closed position. To this
end, as here shown as an example, near the base
of the bottle neck is a short external thread I6
engaged by a complementary thread l1 on .the
interior of the cap skirt and near the bottom
y55 thereof.
y
of shoulder I9 with flange i3 and in the other
direction by the contact vof threads i6, Il’ which
thus serve as stops.
' i
For convenience of description, the position of
the cap when screwed down on the bottle thread, 55
2,128,567
2
as illustrated in Figure 1, will be referred to as
the “closed” position and the position of the cap
when displaced axially until shoulder I9 engages
nange it, as illustrated in Figure 2, will be re
ferred to as the “open” position.
There is provided means for tending to keep
the cap in open position when the threads i6, l1
are disengaged.
the wall of the» cup and which may be continuous
or interrupted. The disk ¿i2 is provided with a
plurality of cutouts ¿l5 (Figure 4) for the passage
_of liquid when the check valve lifts from its seat.
While the locking flange i8 and the pump bar
rel may be associated with and supported from
the bottle in various ways, they may conveniently
be parts of an attachment unit permanently se
To this end, as here shown as
cured to the bottle neck. To this end, as shown 10
as an example in Figures 1 and 2, the attach
ment unit includes a metal clamp ring 5l which
embraces the mouth of the bottle. This ring has
an inwardly extending V -shaped bend or bead 52
which locks under a shoulder 53 formed by a so
called lock ring Ell at the bottle mouth. This 15
container and a pump plunger operated by the lock ring is similar to the lock ring provided on
' cap. Although capable of various constructions,
bottles sealed by closures of the crown cork type.
in that shown as an example in Figures 1 and 2,
The locking flange i8 is formed as an extension
extending down into the bottle neck and sup
of one leg of the V-shaped bend 52. The clamp
ported therefrom as later described, is a metal ring Eil also has an inturned clamping flange 55 20
which takes over the lip of the bottle. The pump
20 barrel 23. Reciprocable in this barrel is a pump
plunger Eil. `In the present exempliñcation, an barrel Z3 is suspended by means of an outwardly
an example, a coiled spring 20 is confined be
tween flange it and the top wall of the cap. As
soon as the threads are disengaged, spring 20
moves the cap to the open position of Figure 2.
The invention in its entirety includes a barrel,
in the nature oi a pump barrel, carried by the
operative connection between plunger and cap
is effected by making the plunger an integral
part of the cap. The plunger 24 has a central
25 bore 25 communicating with a central bore or
port 2t in the top of the cap, bore 25 and port 26
extending supporting flange 5t clamped between
clamp flange 55 and the bottle lip.
constituting a discharge passage for the con
tainer contents.
1n the bottom wall 2l of the barrel is a cen
30 trally located inlet port 28 for passage of the
Clamped between supporting flange 5t and 25
clamp flange 55 is a compressible gasket 51 of
cork, felt or other suitable material. This gasket,
serves to prevent leakage from the barrel and its
inner edge makes wiping contact with plunger 30
container contents to the pump chamber.
The invention in its entirety includes means
for controlling the inlet'port and for closing the
discharge passage. This may conveniently be
35 accomplished by a floating valve element for con
trolling the inlet port and having a portion for
closing the discharge passage when the cap is
closed. To this end, in the embodiment shown as
an example in Figures l and 2, in the lower end
40 of the barrel, and floating therein, is a combined
24 so that it serves as a pump packing.
Compressed between flange 56 and the bottle
lip is a second gasket 58 which serves to prevent
leakage from the container up over the bottle lip.
This attachment unit may be constructed and 35
assembled with the bottle in various ways, for
example, as described in said application Serial
No. 161,046. As there shown and described, the
V-shaped bend of the attachment unit is sub
valve element comprising a hollow plug portion
stantially circular and the bottle neck is so 40
formed that the bottle locking ring is oval or
elliptical in outline. The major axis of this oval
having a truste-conical top adapted to make
sealing engagement with a tapered valve seat 3l
‘formed at the mouth of bore 25. Extending out
wardly from the base of plug 30 is a flange 32
45
which normally seats on the.barrel bottom 21.
At the juncture of plug and ñange, the valve ele
ment has an annular dished portion in the nature
of a bead 33 which extends into the port 28. The
harige
is provided with a plurality of cutouts
50 Sli (Figure 3) for the passage of liquid when the
flange
lifts from its seat.
Movement of the floating valve element 30-32
is limited
one direction by its engagement with
55 the bottom of the barrel and in the other direc
tion by the engagement of flange 32 with a bead
35 struck in from the wall of the barrel and
which
be continuous or interrupted.
The invention in its entirety includes a float
c‘neck valve for the discharge passage. To
60
this end, in the exempliñcation shown in Figures
l. and 2, secured in the top of plunger bore 25
with a friction fit is a cup-shaped element 40 hav
ingr an opening ¿il in its. bottom wall. The latter
serves as a ported partition in the discharge
65
Floating in cup lll) is a check valve
comprising a fiat valve disk d2 which normally
seats on the bottom of the cup to close the dis
charge passage. Extending upwardly from` disk
70
75
a plurality of lugs ¿i3 which engage the wall
of cup ¿il to guide the valve element in its move
ment. Movement of this check valve is limited in
one direction by its engagement with the bottom
of cup ¿lo“ and in the other direction by the en
gagement of lugs ¿i3 with a bead 44 struck in from
is slightly greater than the diameter of the apex
of the V-shaped bend and the minor axis is some
what less than such diameter. In assembling the
attachment with the bottle, V-shaped bend and 45
lock ring are brought together and application
of the necessary force or pressure causes the
somewhat resilient'metal of the attachment to
be deformed to oval shape. As this oval is slight
ly larger than the oval of the bottle lock ring, the 50
bend can pass the ring.
Thereupon, the bend re
turns to circular form by virtue of its inherent
resiliency and snaps under the bottle shoulder.
Other constructions are, of course, possible.
As further described and shown in said applica 55
tion Serial No. 101,046, the V-shaped bend may
be formed during assembly by a spinning opera
tion. In that case the bottle locking ring may
be circular. Or, the shoulder and bend both 60
being circular, the V-shaped bend may be slitted,
thus permitting the bend to expand sufficiently to
pass the locking ring. [In referring to circles and
ovals, it is to be understood that the same may
be continuous or interrupted.
65
Once the parts are assembled, the combined
gripping action of bead 52 and clamp flange 55
securely clamps the attachment unit to the con
tainer with the pump barrel suspended in the
container mouth.
Figure 1 shows the package closed for ship 70
ment, storage and when not in use.
In this po
sition, the combined valve element 3%-32 is
pressed downwardly by the plunger 2li with valve
flange 32 engaging barrel bottom 2l. This pro
vides a double seal. The engagement of flange 75
2,128,567
.32 with the barrel bottom, with bead 33 engag
ing the rim of the inlet port, prevents leakage
of liquid from the container into the pump bar
rel. The engagement of plug 3U with valve seat
3l prevents leakage into the discharge passage of
any liquid that may remain in the barrel or that
may, by chance, work its way into the latter.
Leakage from the barrel to the outside is pre
vented by gasket 51 and leakage from the con
10 tainer over the bottle mouth is prevented by
gasket 58.
When it is desired to obtain an application of
the hand lotion or other contents, the cap is un~
screwed until the threads I6, l'l disengage, thus
15 freeing the cap which thereupon becomes a pump
actuating element.
So freed, the cap is moved
away from the bottle, by spring 20, until shoul
der I8 engages iìange i8. During this opening
movement, valve seat 3l moves away from plug
20 3D, thus opening the discharge passage at that
point and freeing the valve element Sil-32 to
permit the latter to float.
It will be apparent that to dispense the con
tents, the bottle must be inverted. Whether the
25 cap is opened before or after inversion is imma
terial. If before, the initial opening stroke will
ordinarily be an idle one and one or more recip
3
tle until the threads make contact and then ro
tated to cause the threads to mesh. As the cap
is >screwed down tight, the end of plunger 24 con
tacts plug 30 and rides valve element 30-32
down, unless the valve has previously seated
under gravity. In any event, the final tighten
ing movement causes valve seat 3| to be pressed
ltightly against plug 30 and valve 30-32 to be
pressed tightly against its seat, thus re-eifecting
the double seal previously described.
10
Instead of having the bottle heldin the hand,
it may be supported in a permanently inverted
position. In case the supporting holder grips
the cap, the relative rotary movement to disen
gage the threads and the relative axial movement 15
for pumping are effected by moving the bottle
instead of the cap.
Figure 5 shows a modification of the check
Valve. The cup-shaped insert 40 is the same
as above described. The check valve floating 20
therein, instead of having a dat disk, has an
annular portion '60 which seats on the bottom of
the cup and a conical portion El which plugs port
l.
Figures 6 and 7 illustrate a further modification 25
of the check valve. As there shown as an ex
rocations of the cap, in the nature of “priming” ample, secured in the top of plunger bore 25
with a friction ñt is a cup-shaped element 65
strokes, will be necessary after inversion. If the having
an opening 65’ in its bottom wall. The
cap is opened after inverting the bottle, such
latter thus serves as a ported partition in the 30
priming may be found necessary. For the pur
discharge passage. Confined within cup 65 to
poses of the present description, it will be as
control the passage is a check valve comprising
sumed that the cap is unscrewed after the bottle
is inverted (Figure 2) and that no priming stroke a cup-shaped valve element 66 made of rubber
or other suitable resilient material. The bottom
35 is involved.
of
the rubber cup is domed upwardly and the top 35
The movement of the cap to open position and
of
dome is slitted as, for example, by cross
the consequent movement of plunger 24 may be slitsthe
61 such as shown in Figure '7.
termed the suction stroke of the pump unit.
'I'he shape of the dome tends to hold the slits
During this stroke, the force of theair which closed. Upon the suction stroke, the pressure of
40 tends to flow into the pump chamber through
the air inwardly against the dome tends to flat
port 26 causes check valve 42 to seat, thus clos
ten the latter and close the slits more tightly.
ing the passage against the entrance of air. This
closes the discharge passage and prevents
Whether the inlet control valve 30-32 openskby entrance of air. On the force stroke, the pres
gravity when the bottle is first inverted or by sure of the liquid against the underside of the
45 gravity or suction or both during the suction
rubber valve element tends to extend the dome,
stroke is immaterial. In any event, such valve thus separating or vopening slits 61 for the pas 45
opens at some stage prior to the end of the suc
tion stroke, permitting a ñow of liquid into the
pump chamber, such flow being the result of
50 gravity, suction or both.
The dispensing operation may be carried out
in various ways. For example, the bottle may
be held in one hand and the pump-actuating cap
reciprocated by a ñnger of that hand. Or the
55 cap may be actuated by the palm of the other
hand. In any event, the cap is moved toward
the container until the threads I6, l1 come into
contact to limit such movement. This is the com~
pression or expelling stroke of the pump. As a
60 result of this stroke, inlet control valve 30-32 is
forced against its seat to close the inlet; check
valve ¿l2 is forced open, unless it has previously
opened by gravity; and a charge of liquid is
forced out through discharge passage 25-26 in
65 the form of a jet. As only a small quantity is
delivered on each force stroke, the user may give
the pump-actuating cap several rapid reciproca
tions. Each suction stroke causes or permits the
intake of a charge and each force stroke ejects a
70 charge.
After use, the bottle is returned to upright po
sition and the cap closed. While no particular
order is necessary, closing of the cap after the
bottle is inverted is considered preferable. To
close the cap, it is axially moved toward the bot
sage of the liquid.
-
In the modification of Figures 8 and 9, the
attachment unit, which carries the pump’ barrel,
comprises a metal skirt 10 having an internal
50
broken thread 'll which engages an external
broken thread 12 on the neck 'I3 of bottle 14.
Extending inwardly from skirt 10 is a ñange 15.
Between this flange and the lip'of the bottle is a
co-mpressible gasket 16 of cork, -pulp board or 55
other suitable material.
Forming part of the attachment unit is a
pum-pbarrel 'H extending down into the bottle
neck. This barrel has an enlarged upper portion
18, the difference in diameter providing a ledge 60
or shoulder 19. At the top of this enlarged por
tion is an outwardly extending flange 80 con
ñned between flange 'l5 and gasket '16, whereby
the barrel is suspended in» the bottle. When the
attachment unit is assembled on the bottle, the 65
tightening of the screw-thread engagement
causes gasket 'I6 to be compressed, thereby to
prevent leakage from the bottle over the bottle
lip.
‘
Seated on ledge 'i9 and compressed by the
down-turned rim of ñange l5 is a gasket 8l of
felt, rubber or other suitable material. This
gasket prevents leakage from the pump barrel
and its inner edge makes wiping contact with the
75
2,128,567
pump plunger, thereby serving as a pump pack
plunger, air is drawn into the space between the
ing.
Telescoping over the skirt lll of the attach
pump stem and the barrel, presumably entering
between the pump plunger and gasket 8l. This
ment unit is a metal cap having a` skirt 84 and
air can then flow, or upon the next suction stroke
a top portion 95, the latter having a central open
ing. The pump plunger of the embodiment un
der consideration is not integral with the cap
but is associated therewith to form an> operating
unit. To this end, the pump plunger comprises
a head ¿it having a recess Bl; a stem 88 of less
diameter than the barrel; and a piston-like por
tion S9 having a running ñt in the barrel.
Pass
ing through the central opening of the cap and
wedged into recess Si is a headed thimble 90
having a port or passage 9|. The head of this
thimble engages the top of the cap and its fric
tion ñt in the head of the plunger unites cap,
thimble and plunger as an operating unit.
The pump plunger has a central bore'92. This
20 bore, recess 9i and port 9i constitute a dis.
is forced, out through ports lû3 into the bottle.
Whether or not this is the true explanation, the
fact remains that when ports H33` are provided
the flow of air is visually demonstrated and the
pump operates satisfactorily, whereas without
such ports the construction of Figures 8 and 9
does not operate satisfactorily on thicker liquids.
Figure 8 shows the package closed. In this
position valve element 94-95 provides a double
seal as in the construction previously described.
charge passage for the container contents.
In the bottom of the barrel Tl is an inlet port
93 for the passage of the container contents to
the barrel. This inlet port is controlled and the
25 discharge passage is normally closed by a floating
valve element 913 which is like the corresponding
element of Figures 1 and 2 except that lthe plug
portion 95 is dome shaped. A bead 99, struck in
from the metal of the barrel and which may be
30 continuous or interrupted, serves to limit upward
movement of the ñoating valve element E34-_95.
In the recess 8l is a floating check valve
comprising a flat disk 9'! and upstanding lugs
99 and having cutouts like those of valve 42 for
35 the passage of liquid. This valve normally seats
Upon a twisting movement of the cap to free the l15
bayonet lock, the cap becomes a pumping element.
So freed, the cap is moved to the open position
of Figure 9 by spring lûll. Assuming that the
bottle has been inverted, this opening movement
constitutes the suction stroke of the pump. Dur 20
ing the opening movement, the valve seat formed
by the mouth of bore 93 moves aw‘ay from plug 95,
thus opening the discharge passage at that point
and freeing valve element Sli-95 to permit the
latter to float. By gravity or suction or both, 25
on the bottom of the recess and its upward move
ment is limited by the engagement of lugs 98
with thimble 99.
There is provided means for releasably locking
the cap in closed position. Although capable of
40
various constructions, as shown as an example
in Figures 8 and 9, formed in the upper edge of
skirt 'ill of the attachment unit and located at
diametrically opposed points, are two bayonet
grooves itil. Struck inwardly from the metal of
45 the cap skirt 39 are two similarly opposed nibs
lill. To lock the cap in closed position, it is
given an axial movement to bring nibs lill into
engagement with the rim of the skirt 'lil and then
an angular movement, if necessary, to bring the
50 nibs in alinement with the vertical portion of
the bayonet grooves lilu. A further slight axial
movement and a further slight angular or twist
ing movement cause the nibs to pass into the
longitudinal portions of the bayonet groves,
55 thereby locking the cap.
To open the cap, it is
twisted slightly to bring nibs lll! into line with
the vertical portions of the bayonet grooves,
whereupon the cap is automatically raised to open
position by virtue of a coiled spring i9@ located
60
between iiange l5 and the top of the cap.
In the present exempliflcation, the opening
movement of the cap is limited and its removal
prevented by the engagement of the piston-like
65
portion 89 of the pump plunger with gasket 8l.
The invention in its entirety includes means
whereby air may reach the interior of the bottle
as the liquid contents are discharged. Although
capable of various constructions, in that shown
as an example in Figures 8 and 9, there is a sub
70
stantial clearance between the stem 98 of the
pump plunger and the wall of the barrel Il.
Formed in the latter are a plurality of ports or
holes 593, located just below ledge 19. It is be
lieved that upon the force stroke of the pump
75
valve 951-95 moves away from its seat. There
upon, liquid from the bottle flows by gravity or
suction or both into the pump barrel. Mean
while, the force of air tending to flow into the
pump chamber through port 9| causes check
valve 9'! to shut. It will be seen from Figure 9
that the piston-like portion 89 of the pump
plunger prevents any flow of liquid through
ports it'iíi.
Reverse movement of the cap constitutes the 35
expelling stroke. As a result of this stroke, inlet
control valve 9Ll-95 is forced closed; check valve
9’5-99 is forced open, unless it has previously
opened by gravity; and a charge of liquid is
forced out through the discharge passage.
The pumping stroke is limited in one direction
by the engagement of piston 89 with gasket 8l
and in the other direction by the engagement
of nibs i9! with the rim of skirt 1D. Should the
nibs lëli happen to aline with the bayonet grooves 45
m9, the force stroke will be slightly longer be
cause the nibs will later enter the vertical part
of the grooves but this difference is immaterial
so far as the operation is concerned.
After dispensing, the cap is closed as above 50
described. During the latter part of the axial in
ward movement of the cap the end of the pump
plunger contacts plug 95> and rides valve element
down to seated position, unless it has previously
seated under gravity, and the final closing move 55
ment effects a tight seal between plug 95 and
the valve seat in the mouth of bore 92.
To assemble the parts, the attachment unit and
cap are assembled together in any suitable man
ner and the combined assembly is assembled with 60
the bottle simply by screwing the attachment
unit down on the bottle thread.
Figures l0 and 11 illustrate a further modifica
tion. This is in many respects like the embodiment
oi Figures 8 and 9 but includes a pump plunger
formed of ldrawn metal shells.
That and other
diiîerences are hereinafter more fully referred
to.
The attachment unit comprises a skirt ill
having an internal broken thread M2 which en 70
gages an external broken thread H3 on the neck
of the bottle lili. At the top of skirt iii
an
inwardly extending flat ring portion H5 and
an inwardly extending iiange I It, ring and flange
being in different planes` Over the bottle lip is a 75
2,128,567'
compressible sealing gasket ||1 of cork, pulp
board or other suitable material. Held between
ring I|5 and gasket ||`| is a supporting flange
||8 for the pump barrel | I9. Between flange H6
_and flange ||8 is a sealing gasket |29 of felt,
rubber or other suitable material. These gaskets
perform the same sealing functions, respectively,
as gaskets 76, 8| of Figures 8 and 9. Gasket |20
also makes wiping contact with the pump plunger
10 to serve as a pump packing.
The cap comprises a skirt |29 telescoping over
the skirt of the attachment unit, and a top por
tion |29 having a central opening.
The pump plunger is formed in two parts, both
of which may be conveniently constructed in the
form of drawn metal shells.
What may be termed the outer shell comprises
a cylindrical part |25 having a running ñt in the
pump barrel. At the top, the outer shell has an
20 outwardly extending flange |26 and an upwardly
extending rim |27. In closed position of the cap,
flange |39 engages gasket |20. At the bottom, the
shell cylinder |25 has an inwardly extending bot
tom |28 forming the expelling head of the
25 plunger. Inside this head, the shell is dished
upwardly and inwardly to form a conical valve
seat |29 and then extends upwardly to form a
coupling |39.-
The inner shell comprises an upper cylindrical
30 portion |32 and a lower cylindrical portion |33,
the two being of a different diameter and joined
by an annular shoulder or ledge |34. At the top,
cylindrical portion |32 has an outwardly extend
ing flange |35 which overlies rim |21 of the outer
35 shell and underlies the top of the cap.
The lower end of cylindrical portion |33 takes
over coupling |39 with a wedging or friction fit.
Wedged into upper cylindrical portion |32 with
a friction ñt is a headed thimble |36 having a
40 port or passage |37, the head of the thimble en
gaging the top of the cap. These two friction
connections unite the cap and the two-part pump
.plunger into an operating unit.
Between the thimble |36 and ledge |34 is a
45 recess |39. The interior of cylinder |33 opens
into the pump barrel through coupling |30 and
forms, with recess |39 and port |31, the discharge
passage for the container contents.
Located in recess |39 is a floating check valve
50 |49 like the valve ill-_98 of Figures 8 and 9.
The bottom of pump» barrel | I9 has an inlet
port |4| for the passage of the container contents.
This inlet port is controlled and the discharge
passage is normally closed by a valve unit
55 l 42-I1l3 generally like the valve unit 30-32 of
Figures l and 2. The frusto-conìcal top of dome
|43 seats in the valve seat |29.
The cap is releasably locked to the attachment
unit by bayonet grooves |45 and nibs |46 like
60 those described in connection with Figures 8 and
9. When the bayonet lock is released, the cap is
moved to open position by a spring |41. Opening
movement is limited and removal of the cap
prevented by the engagement between an internal
65 ñange |48 on the bottom of cap skirt -|23 and a
stop shoulder |99 formed in the skirt III of the
attachment unit.
As the embodiment of Figures 10 and 11 is
designed more particularly for thinner liquids, the
70 air ports |99 of Figures 8, 9 are omitted. Except
for this and except for the variation of the means
for limiting opening movement, the operation of
the embodiment of Figures l0 and 11 is substan
tially like that of the embodiment of> Figures 8
75 and 9.
g
While the invention has been described in con
nection with a glass bottle, it is apparent that the
invention is not limited to any particular kind of
container.
What is claimed is:
l. In a dispensing package for liquids, and in
combination, a container having a neck, an at
tachment unit on the container and comprising a
barrel extending into the container neck and
having an inlet port, a skirted cap, means for -
releasably locking said cap in closed position, said
cap being capable of a reciprocating axial move
ment with respect to the container when said
locking means are released, a plunger operating
in said barrel, an operating connection between l5
said plunger and the cap whereby the plunger is
reciprocated upon axial reciprocation of the cap,
means for limiting such axial movement, a dis
charge passage for expulsion of liquid by said
plunger. said passage having a valve seat, and a 20
freely floating valve element for controlling said
inlet port and having a plug-like portion for
engaging said valve seat to close the discharge
passage when the cap is in closed position.
2. In a dispensing package for liquids, and in 25
combination, a container having a neck, an at
tachment unit on the container and comprising a
barrel extending into the container neck and hav
ing an inlet port, a skirted cap, means for releas
ably locking said cap in closed position, said cap 30
being capable of a reciprocating axial movement
with respect to the container when said locking
means are released, a plunger operating in said
barrel, an operating connection between said
yplunger and the, cap whereby the plunger is re 35
ciprocated upon axial reciprocation of the cap,
means for limiting such axial movement, a dis
charge passage for expulsion of liquid by'said
plunger, said passage having a valve seat, a freely
ñoating valve element for controlling said inlet 40
port and having a plug-like portion for engaging
said valve seat to close the discharge passage
when the cap is in closed position, and means for
limiting the movement of said floating valve ele
ment, the range of movement of such valve ele
ment being substantially less than the range of
reciprocating movement of said plunger.
3. In a dispensing package for liquids, and in
45
combination, a container having a neck, an at
tachment unit on the container and comprising 50
a barrel extending into the container neck and
having an inlet port in its bottom wall, a skirted
cap, means for releasably locking said cap in
closed position, said cap being capable of a re
ciprocating axial movement with respect to the 55
container when said locking means are released,
a discharge passage for expulsion of liquid by said
plunger, said passage having a valve seat, and
a freely floating valve element having an annular
flange-like portion normally seating on the bot 60
tom of said barrel and a plug-like central portion
for engaging said valve seat to close the discharge
passage when the cap is in closed position.
4. In a dispensing package for liquids, and in
combination, a container having a neck, an at 65
tachment unit on the container and comprising a
barrel extending into the container neck and
having an inlet port in its bottom wall, a skirted
cap, means for releasably locking said cap in
closed position, said cap being capable of a re“ 70
ciprocating axial movement with respect to the
container when said locking means are released, a
discharge passage for expulsion of liquid by said
plunger, said passage having a valve seat, a freely
floating valve element having an annular iiange
6
2,128,567
like portion normally seating on the bottom of
said barrel and a plug-like central portion for
engaging said valve seat to close the discharge
passage when the cap is in closed position, and a
stop element struck in from the metal of said
tachment unit on the container and comprising
a barrel extending into the container neck and
having an inlet port, a skirted cap, means for
releasably locking said cap in closed position, said
barrel for engagement by said flange-like portion
to limit movement of said iioating valve element,
said stop element being so positioned that the
range of movement of the valve element is sub
10 stantially less than the range of reciprocating
movement of said plunger.
5. In a dispensing package for liquids, and in
cap being capable of a reciprocating axial move
ment with respect to the container when said
locking means are released, a plunger operating
in said barrel and having an internal bore, an
combination, a container having a neck, an at
tachment unit on the container and comprising
a barrel extending into the container neck and
having an inlet port, a skirted cap, means for
releasably locking said cap in closed position,
said cap being capable of a reciprocating axial
movement with respect to the container when said
20 locking means are released, a plunger operating
in said barrel, an operating connection between
said plunger and the cap whereby the plunger is
recipi'ocated upon axial reciprocation of the cap,
means for limiting such axial movement, a dis
25 charge passage for expulsion of liquid by said
operating connection between said plunger and
the cap whereby the plunger is reciprocated upon 10
axial reciprocation of the cap, means for limit
ing such axial movement, a port in the top wall
oi the cap communicating with the bore oi said
plunger and forming therewith a discharge pas
sage, a cup-shaped element secured within the 15
plunger bore and having a port in its bottom wall,
a floating check valve comprising a disk normally
seating on the bottom of said cup-shaped element
and a plurality of upstanding lugs, a stop element
struck in from the wall of said cup-shaped ele 20
ment for engagement by said lugs to limit the
movement of said floating check valve, means for
controlling said inlet port and means for closing
the discharge passage when the cap is in closed
plunger, means for controlling said inlet port,
means for closing said discharge passage when
the cap is in closed position, and a freely ñoating
check valve controlling said discharge passage.
6. In a dispensing package for liquids, and in
30
combination, a container having a neck, an at
tachment unit on the container and comprising
a barrel extending into the container neck and
having an inlet port, a skirted cap, means for re
35 leasably locking said cap in closed position, said
cap being capable of a reciprocating axial move
ment with respect to the container when said
locking means are released, a plunger operating
in said barrel, an operating connection between
40 said plunger and the cap whereby the plunger is
reciprocated upon axial reciprocation of the cap,
means for limiting such axial movement, a dis
charge passage for expulsion of liquid by said
plunger, means for controlling said inlet port,
45 means for closing said discharge passage when
the cap is in closed position, a floating check
valve for controlling said discharge passage com
prising a disk and a plurality of upstanding lugs,
supporting means for said check valve, and stop
50 means for engagement by said lugs to limit move
ment of the valve.
7. In a dispensing package for liquids, and in
combination, a container having a neck, an
attachment unit on the container and compris
55 ing a barrel extending into the container neck
and having an inlet port, a skirted cap, means for
releasably locking said cap in closed position, said
cap being capable of a reciprocating axial move
ment with respect to the container when said
60 locking means are released, a plunger operating
in said barrel and having an internal bore, an
operating connection between said plunger and
the cap whereby the plunger is reciprocated upon
axial reciprocation of the cap, means for limiting
65 such axial movement, a port in the top wall of
the cap communicating with the bore of said
plunger and forming therewith a discharge pas
sage, a partition located in said bore and having
a port, a floating check valve normally seating on
70 said partition for controlling the port therein,
means for controlling said inlet port and means
for closing the discharge passage when the cap is
in closed position.
8. In a dispensing package for liquids, and in
75 combination, a container having a neck, an at
position.
25
9. In a dispensing package for liquids, and in
combination, a container having a neck, an at
tachment unit on the container and comprising
a barrel extending into the container neck and
having an inlet port, a skirted cap, means for 30
releasably locking said cap in closed position, said
cap being capable of a reciprocating axial move
ment with respect to the container when said
locking means are released, a plunger operating
in said barrel and having an internal bore, an 35
operating connection between said plunger and
the cap whereby the plunger is reciprccated upon
axial reciprocation of the cap, means for limiting
such axial movement, a port in the top wall of
the cap communicating with the bore of said 40
plunger and forming therewith a discharge pas
sage, a cup-shaped element secured within the
bore of the plunger and having an opening in its
bottom wall, a check valve in said cup compris
ing a rubber element having a central dome, said 45
dome having a slit therein, means for controlling
said inlet valve, and means for closing the dis
charge passage when the cap is in closed position.
l0. In a dispensing package for liquids, and in
combination, a container having a neck, an 50
attachment unit on the container and compris
ing a barrel extending into the container neck
and having an inlet port, a skirted cap, means for
releasably locking said cap in closed position, said
cap being capable of a reciprocating axial move 55
ment with respect to the container when said
locking means are released, a plunger operating
in said barrel, an operating connection between
said plunger and the cap whereby the plunger is
reciprocated upon axial reciprocation of the cap, 60
means for limiting such axial movement, a cen
tral bore in said plunger, a discharge passage for
expulsion of liquid by the plunger, including said
bore, the plunger having an internal shoulder
surrounding said bore, a floating check valve 65
normally seating on said shoulder to control said
bore, means for limiting movement of said check
valve, means for controlling said inlet port and
means for closing the discharge passage when the
cap is in closed position.
1l. In a dispensing package for liquids, and in
combination, a container having a neck, a skirted
cap associated with the container neck, means
whereby the cap may be releasably locked in
closed position, the cap being capable of a recip
2,128,567
rocating axial movement with respect to the
container when said locking means are released,
means for limiting such axial movement, a barrel
extending into the container neck and having a
controlled inlet port, a plunger operating in said
barrel, said plunger comprising a piston-like head
having a sliding lit in said barrel and a stem hav
ing a diameter smaller than that of the head, an
operating connection between said plunger and
the cap whereby the plunger is reciprocated upon
axial reciprocation of the cap, said barrel having
an opening in the wall thereof for the passage of
air, a discharge passage for the expulsion of
liquid by said plunger and valve means for closing
15 said passage when the cap is in closed position.
12. In a dispensing package for liquids, and in
combination, a container having a neck with a
lip at the top thereof, an attachment unit com
prising a skirted portion outside the container
20' neck and a barrel suspended into the container
neck, said barrel having a controlled inlet port,
the container neck and the skirted portion of the
attachment unit having mutually engaging
screw threads, whereby the attachment unit may
25 be secured in place on the container, a sealing
gasket compressed against the container` lip
when the attachment kunit is threaded into posi
tion,v a skirted cap telescoping over said attach
ment unit, means whereby the cap may be re
30 leasably locked in closed position, the cap being
capable of a reciprocating axlal movement with
respect to the container when said locking
means are released, means for limiting such
axial movement, a plunger operating in said bar
35 rel, said plunger comprising a piston-like head
having a sliding ñt in said barrel and a stem
having a diameter smaller than that of the head,
an operating connection between said plunger
and the cap whereby the plunger is reciprocated
40 upon axial reciprocation of the cap, said barrel
having an opening in the wall thereof for the
passage of air, a discharge passage for the ex
pulsion of liquid by said plunger and valve means
for closing said passage when the cap is in closed
45
position.
13. A. liquid dispensing closure for containers
comprising, in combination, a threaded skirt for
engagement with a thread on a container neck,
whereby the skirt may be secured in place on
50 the container, a barrel for suspension in the
container neck and having a controlled inlet
port, a skirted cap telescoping over said threaded
skirt, interengaging means on the threaded skirt
and the cap, respectively, for releasably locking
55 the cap in closed position, the cap being capable>
or" a reciprocating axial movement when said
locking means are released, means for limiting
such-axial movement and preventing removal of
the cap, a plunger operating in said barrel, an
60
operating connection between said plunger and
the cap whereby the plunger is reciprocated upon
axial reciprocation of the cap, a discharge pas
sage Íor the expulsion of liquid by said plunger
and valve means for closing said passage when
65 the cap is in locked position.
14. A liquid dispensing closure for containers,
comprising, in combination, a threaded skirt for
engagement with a thread onv a container neck,
whereby the skirt may be secured in place on the
70 container, a barrel for
tainer neck and having
a skirted cap telescoping
interengaging means on
suspension in the con
a controlled inlet port,
over said threaded skirt,
the threaded skirt and
the cap, respectively, for releasably locking the
75 cap in closed position, the cap being capable of
7
a reciprocating axial movement when said lock
ing means’are released, means for limiting such
axial movement and preventing removal of the
cap, a plunger operating in said barrel and hav
ing an internal bore or passage, the lower end of
said bore `having Y av valve seat, a ported and
headed thimble passing through an opening in
the top of thev cap and engaging into the end
of the plunger with a friction fit, the head of the
thimble conñning a portion of the cap between 10
such head and the plunger, whereby cap, thim
ble and plunger are connected together as an
operating unit and the plunger is reciprocated
upon axial reciprocation of the cap, and a plug
valve for seating in the said valve seat when the
cap is in closed position, thereby to close the dis
charge passage through the plunger.
15. A liquid dispensing -closure for containers
comprising, incombination, a threaded skirt for
engagement with a thread on a container neck,
whereby the skirt may be `secured in pla-ce on
the container, a barrel for suspension in the
container neck and having a controlled inlet
port, a skirted cap telescoping over said threaded
skirt, interengaging means on the threaded skirt
and the cap, respectively, for releasably locking
the cap in closed position, the cap being capable
of a reciprocating axial vmovement when said
locking means are released, means for limiting
such axial movement and preventing removal oi' 30
the cap, a plunger operating in said barrel and
formed of a plurality of drawn metal shells, an
operating connectionr between said plunger and
the cap whereby the plunger is reciprocated upon
axial reciprocation of the cap, a discharge pas
sage for the expulsion of'liquid by said plunger 35
and valve means for closing said passage when
the cap-f is vinlocked position.
`
16. A liquid dispensing closure for containers
comprising, in combination, a threaded skirt for 40
engagement with a thread on a container neck,
whereby the skirt may be secured in place on the
container, a barrel for suspension in the con
tainer neck and having a controlled inlet port, a
skirted cap telescoping over said threaded skirt,
interengaging means on the threaded skirt and 45
the cap, respectively, for releasably locking the
cap in closed position, the cap being capable of a
reciprocating axial movement when said locking
means are released, means for limiting such axial
movement and preventing removal of the cap, a 50
plunger operating in said barrel and formed of
two drawn metal shells, the outer shell compris
ing a portion having a running ñt in said barrel
and an annular head at its lower end, the metal
inside said head being dished upwardly and in 55
wardly to form a frusto-conical valve seat and
then upwardly to form a tubular coupling, the
inner shell having a tubular lower portion iitting
over said coupling with a friction fit, and a tubular
portion the edge of which is engaged by the upper 60
end of said inner shell having an outwardly
turned flange engaging the top rim of the outer
shell, a ported and headed thimble extending
through an opening in the top of the cap and hav 65
ing a friction ñt in the upper end of said inner
plunger shell, the edge of the cap surrounding
the cap opening being clamped between the head
of said thimble and the top ñange of the inner
plunger shell, whereby cap and plunger are con 70
nected as an operating unit, and a conical plug
valve for seating in said valve seat when the cap
is in locked position, thereby to close the dis
charge passage through the plunger.
17. A liquid dispensing closure for containers 75
8
2,128,567
comprising, in combination, a threaded skirt for
engagement with a thread on a container neck,
whereby the skirt may be secured in place on the
container, a barrel for suspension in the con
tainer neck and having a controlled inlet port, a
skirted cap telescoping over said threaded skirt,
interengaging means on the threaded skirt and
the cap, respectively, for releasably locking the
cap in closed position, the cap being capable of
a reciprocating axial movement when said locking
means are released, a plunger operating in said
barrel and having a piston-like end portion and a
stem portion, an operating connection between
said plunger and the cap whereby the plunger is
reciprocated upon axial reciprocation of the cap,
15 a discharge passage for expulsion of liquid by the
plunger, valve means for closing said passage
when the cap is in locked position, and a stop as
sociated with said barrel for engagement by the
piston-like portion of said plunger to limit the
20V
movement of the cap-plunger unit.
18. A liquid dispensing closure for containers
25
30
comprising, in combination, a threaded skirt for
engagement with a thread on a container neck,
whereby the skirt may be secured in place on
the container, a barrel for suspension in the con
tainer neck and having a controlled inlet port, a
skirted cap telescoping over said threaded skirt,
interengaging means on the threaded skirt and
cap, respectively, for releasably locking the cap
in closed position, the cap being capable of a re
ciprocating axial movement when said locking
means are released, a plunger operating in said
barrel, an operating connection between said
plunger and the cap whereby the plunger is re
35 ciprocated upon axial reciprocation of the cap, a
discharge passage for the expulsion of liquid by
said plunger, valve means for closing said pas
sage when the cap is in locked position, and inter
engaging stop elements on the threaded skirt and
the cap skirt, respectively, for limiting axial
movement of the plunger-cap unit.
19. A liquid dispensing closure for containers,
comprising, in combination, a threaded skirt for
engagement with a thread on a container neck,
whereby the skirt may be secured in place on the
container, a barrel for suspension in the container
neck and having a controlled inlet port, a skirted 10
cap telescoping over said threaded skirt, inter
engaging means on the threaded skirt and the cap,
respectively, for releasably locking the cap in
closed position, the cap being capable of a recip
rocating axial movement when said locking means 15
are released, means for limiting such axial move
ment and preventing removal oi the cap, a
plunger operating in said barrel and having an
internal bore or passage, the lower end of said
bore having a valve seat, a ported and headed 20
thimble passing through an opening in the top of
the cap and engaging into the end of the plunger
with a friction ñt, the head of the thimble con
fining a portion of the cap between such head and
the plunger, whereby cap, thimble and plunger are 25
connected together as an operating unit and the
plunger is reciprocated upon axial reciprocation
of the cap, a plug valve for seating in the said
Valve seat when the cap in in clos-ed position,
thereby to close the discharge passage through
the plunger, said plunger having an internal
shoulder surrounding said bore, and a ñoating
check valve comprising a disk normally seating
on said shoulder and a plurality of upstanding
lugs for engaging said thimble to limit movement 35
of the check valve.
RALPH W. WILSON.
>BRENT F. CAHOON.
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