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Патент USA US2123546

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July 12, 1938.
F_ R, pERKlNs
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¿123,546
SEALED. PACKAGE AND -CLOSURE THEREFOR
Filed July 1, 1937
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Patented July 12, 1938
2,123,546
UNITED STATES PATENT oFFlcE '
2,123,546
sEALEDI PACKAGE AND CLosUItE
THEREFOR
Floyd R. Perkins, Chicago, Ill.
Application July 1', 1937, Serial No. 151,343
7 Claims. (Cl. 221-11)
This invention has to do with a sealed package
for merchandise and the like, and relates more
particularly to an improved package cover seal
S13
easily applied and removed.
'I'.he present day hermetically closed packages,
which contain perishable goods such as coffee,
fruits and sauces for household consumption, are
customarily made of sheet metal or vitreous ma
terials.
Sheet metal containers are most com
10 monly made air-tight by a line of solder hold
ing the cover in place, while the same objective
is usually accomplished in the case of vitreous
containers by means of sealing wax in place of
the solder, or, by the use of gasket clamped be
V15 tween the cover and the container proper.
While these containers satisfactorily preserve
their contents, they are costly and have the de
cided disadvantage of being diilicult to open.
Various kinds of cap and cover opening tools have
20 been devised with the view of alleviating the task
of opening such packages, and in certain in
stances sheet metal containers have been pro
vided with a specially constructed section adapt
ed to be torn away by means of an accompany
25 ing tool.
The primary object of the present invention
is the'provision of a new container sealing means
which may be easily removed for permitting ac
cess to the container contents without the use
30
of tools.
_
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l
More speciñcally, the present invention con
templates in the hermetically seale'd package art
the use of a permanently tacky sealing member
for holding the package cover in place.
Other desirable objects of the present inven
35
tion will become apparent upon reading the fol
lowing description with reference to the accom
panying single sheet of drawing hereby made a
part of this specification, and wherein:
Fig. 1 is an end View of a container having a
40
closure embodying the principles. of the present
invention;
v
>
'.'Figs 2 and 3 are fragmentary cross-sectional
views taken, respectively, upon the lines 2-2 and
45 3-3 of Fig. l; and
v `
Fig. 4 is a fragmentary cross-sectional view
taken through the container shown in Fig. 1,
substantially upon the line 2_2, and illustrating
50
55
where there is shown a sheet metalrpackage or
container having a cylindrical side Wall I il pro
vided with a turned-over flange II »about its
upper edge. 4An end wall I2 has a peripheral
iiange i3 extending axially of the container and _
joined to the flange lI by means of a line of
solder indicated at I4. The connection between
the end wall I2 and the side wall I i] is illustra
tive only. Any standard method of securing to
gether the container walls may be employed. A
discharge opening I5 is provided within the end
wall I2. Such discharge opening I5 is closed
by means of Aa spout closure member generally
designated I6.
Upon opposite sides of the opening I5 there are
strap~like saddlesIl which receive opposite end
portions of a’pivot pin I8. One end of the spout
it is curled at I9 about the mid-section of the
pivot pin I8. An extended section 20 of the
spout I6 is adapted to abut against an inwardly .20
turned lip 2| disposed at one end of the open
ing I5._ Said spout I6 has two similar and op
posed side walls 22, each of which has an abut
ment lug 23 thereon. That portion constituting
the bottom ofthe spout when the spout is opened
for use as such has been designated 24, and forms
the cover for the opening I5 when the spout is
retracted into the container.v The pin> I8 and the
lip 2l are so disposed inwardly of the container
that the spout wall 24„when the spout is re
tracted, lies flush with the outer surface of the '
end wall I2. Said spout wall 24 may be referred
to particularly as a shock-absorbing member.
Above the shock-absorbing member 24 is a
patch 25 comprising a fabric piece 26 coated on Y
its under' side with a layer 21 of a permanently
tacky substance. Such tacky layer 2l eiîects an
adhesive connection between the fabric piece 26
and the shock-absorbing member 24, and, since
the patch is of greater area than the discharge
opening l5, the tacky layer thereof adhesively en
gages the end wall I2 at a section immediately
about the opening. The patch 25 may be ob
tained by cutting a section of the desired size
and shape from a larger piece of stock similar to 45
that used for making masking tape or the like.
.There is no intention to limit the invention to
such container with its discharge spout in the
any particular type of adhesively coated fabric
opened position.
for use in a sealed device of the present kind.
Similar parts where shown-and designated in
several figures of the drawing and where re
ferred to hereinafter will be indicated by the
Adhesively coated fabrics of several manufac
turers have been found to have the desired char
acteristics of resisting heat and moisture as make
same reference character.
them well adaptable for use upon packages con
Attention is íirst directed to Figs. 1 and 4
taining liquids, and packages which are sub
55
2.
2,123,546
jected to heat at the time they are ñlled or sub
sequently.
`
As an expedient to the preparation and ñlling
of a package of the kind herein disclosed, the
closure member I6 and the patch 25 may be
applied while the opposite end of the package
is open. The package may be ñlled through such
opposite open end which will be permanently
closed subsequently to that operation. This pro
cedure of assembling and ñlling the package will
insure the absence of spilled contents upon the
exterior marginal edge of the opening I5 where
by such edge section will be clean at the time
of applying the patch 25 and thus insure an effec
15 tive adhesive connection thereto of the tacky ma
terial 2'I.
Experiments have shown that a seal of the
kind here shown is effective for the preservation
of subatmospheric pressure within the container
20 and is further effective for retaining within the
container- liquid substances irrespective of the
position of the container; that is, the container
may be allowed to remain inverted with safety.
The shock-absorbing member 24 receives the force
which may be imparted by the container contents
to the patch 25 because of the container being
shaken or inverted. Such force is transmitted
uniformly by the shock-absorbing member 24 to
the patch 25. The shock-absorbing member 24
30 thus avoids the concentration of force upon any
limited area of the adhesive connection between
the patch and the container end wall I2, there
by preventing the breakage of the connection be
cause of momentive force of the container con
tents in the event of such container being ac
cidentally dropped or otherwise vigorously shaken.
When the pressure within the package is lower
than the ambient atmospheric pressure the lat
ter pressure will augment the effect of the ad
hesive layer 2l to maintain the sealed joint be
tween the closure member 24 and the container
end Wall I2. Also the constant inward pressure
of the atmosphere upon the closure member will
counteract any force imparted to such member
by the container contents. Any likelihood of loos
ening the patch or sealing member 25 by scu?ing
against exterior objects may be diminished by
recessing the end wall at the section containing
the discharge opening I5, and by seating the
50
Ul Cil
vmember 25 in such recess.
Although the patch 25 avoids accidental dis
placement from the effect of force imparted
thereto by the container contents, it is a rela
tively easy matter to remove such patch when
desired.
Removal of the patch may be accom
plished by grasping an edge thereof between the
thumb and foreñnger and by lifting such edge
whereby to strip the member from the contain
er. The removal force is thus concentrated, mak
ing it easy to successively lift adjacent sections
of the adhesive layer from the container end
wall. The container is shown in Fig. 4 With
the sealing member 25 removed and with the
spout I6 in its distended position determined by
the lugs 23 as they strike the depressed section
of the end wall.
While only a single structural embodiment has
been shown in this specification, manifestly, the
invention will extend to many other forms, and
so it is intended the scope of this invention shall
be in nowise limited excepting as defined in the
appended claims.l
I claim:
1. In a hermetically sealed container enclos
ing a space of subatmospheric pressure, compris
ing a metal wall provided with an opening and
subject to expansion and contraction with fluc
tuations in temperature, a shock-absorbing mem
ber removable in such opening, and a peelable
sealing member having a permanently tacky ad
hesive surface extending beyond the limits of
such opening, such surface being adhesively joined
to said shock-absorbing member and to the sec
10
tion of said Wall circumscribing the wall opening.
2. In a hermetically sealed container compris
ing a metal Wall provided with a discharge open
ing and subject to expansion and contraction
with ñuctuations in temperature, a stiiî shock
15
absorber member substantially congruent with
the outline of such opening, and a ñexible peel
able sealing member having a permanently tacky
surface, said shock-absorbingv member being ad
hesively joined with a central portion of the 20
tacky surface of said sealing member thereby
leaving a marginal edge portion of such surface
extending beyond said shock-absorbing mem
ber, and said sealing member being disposed with
such marginal edge adhesively .engaged with said 25
container Wall about the wall opening While ñoat
ingly retaining said »shock-absorbing member
within the wall opening.
3. A hermetically closed container comprising
a metal wall having an opening and subject to 30
expansion and contraction with fluctuations in
temperature, a discharge spout retractable
through such opening into said container, said
spout having a portion disposed substantially
Within the plane of said wall and providing a 35
floating closure for the wall opening while the
spout is retracted, and a sealing member hav
ing. a permanently tacky surface, said sealing
member being of greater area than the container
opening and beingdisposed over such opening
for retaining said spout in itsl retracted posi
tion, and the tacky surface of said sealing mem
ber being adhesively joined with the closure por
tion of said spout and with the container wall
immediately about such opening.
,
4‘. A hermetically closed container comprising
a metal wall having a recess and an opening with
in the bottom of such recess, a shock-absorbing
member disposed within such opening and sub
stantially conforming thereto in shape, and a
sealing member disposed Within said recess, said
sealing memb'er having a permanently tacky sur
face adhesively engaged with the bottom of said
recess and with said shock-absorbing member,
and said sealing member being of such thick- .
-ness as to be substantially flush with the sur
face of the wall at the brim of such recess.
5. A sealed container enclosing a space of sub
atmospheric pressure, a wall of said container
being provided with an opening, a removable
plate closing said opening, a sealing member com 60
prising a fabric patch covering said plate and
adjoining areasof said wall, said patch having
its contacting side secured to said plate and wall
areas by a layer of permanently tacky adhesive `
to permit expansion and contraction of said Wall
Without loosening said patch.
6. The combination of claim 5 in which the
plate is hinged to said wall.
7. The combination of claim 5 in which the
plate is the base portion of a spout which is "
hinged to said Wall.
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j .
FLOYD R. PERKINS.
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