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Патент USA US2133754

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0a. 18, 1938.
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I H, OSCAR
2,133,754
COLLAPS'IBLE TUBE COMPRESSOR
Filed Dec. 4, 1937
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INVENTOR.
' HARRY OSCAR
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ATTORNEY.
Patented Oct. 18, 1938
.
2,133,754 '
UNITED STATES PATENT OFFICE
2,133,754
COLLAPSIBLE TUBE COMPRESSOR
Harry Oscar, New York, N. Y.
>
Application December 4, 1937, Serial No. 178,036
5 Claims. (Cl. 221-60)
This invention relates to devices for dispensing approximately on line 4-4 of Figure 2, but show.
the contents of collapsible containers, with spe- ing the lever grip as in position for operation.
cial reference to thin walled, ductile metallic
Figure 5 is an end elevational view thereof.
tubes, such as are commonly used as packages for
5 a wide variety of plastic substances, like shaving
creams, tooth pastes, artists’ paints, et cetera,
well known to the public.
Such collapsible tubes are ordinarily made with
a ?rm discharge nozzle, provided with a remov-
10 able cap, and are closed, after ?lling through the
bottom, by seaming the lower, juxtaposed edges
in such manner as to prevent leaks and the en-
trance of air.
In order to discharge a desired quantity of the
15 substance in the tube pressure should be applied
at the seamed end and gradually advanced as
the contents become utilized.
Squeezing the tube by hand haphazardly is
likely to cause its wall to break, and invariably
20 leads to loss of the contents which remain therein
after the distorted appearance of the tube indicates that it is empty.
While it is known that devices have been designed to engage the folded, seamed and closed
25 end of such tubes, mostly in the form of av key
on which the tube is progressively coiled as the
contents are expelled, such devices have certain
objectionable features, one of which is the di?culty of operation, due to lack of leverage on the
30 turning handle; another noted objection is that
such devices, by reason of theirv shape and size,
seriously interfere with compact packing of the
tubes in their customary cartons.
Having the matter in mind, it is an object of
35 the invention to provide a compression device,
applied at the closed end of the tube, and on
which it may be progressively, tightly coiled, the
device having a slidable handle element aifording
an effective grip when extended for use, and
40 thereafter retracted to occupy no material space.
ThiS and other advantageous purposes are
Figure 6 is a transverse sectional view taken
on line 6—6 of Figure 4.
5
Figure 7 is a fragmentary front view of a modi
?cation in construction in which the end device
is removably engaged with the tube.
Figure 8 is an end elevational View thereof. .
v
Figure 9 is a perspective view of the same.
but showing a modi?cation in construction.
Referring in greater detail to the drawing, the
numeral l5 designates a conventional type of
collapsible tube, having an outlet or discharge
nozzle is, provided with a removable cap 11.
The tube is usually ?lled with plastic material
entered through the bottom, then open and cylin
drical in shape; after ?lling this lower end is ?at
tened, presenting two opposed sides which are
pressed ?rmly into engagement, as at l8, seamed
in the usual manner to produce a hermetically
sealed joint extending straight across the tube
approximately, at its center, and may be turned
upon itself to form a hem-like terminal.
The invention comprises a pair of thin, but
rigid, plates 20, adapted to clamp the seamed
elements I8 between them and are securely held
thereon by indentations 2| whereby the seam is
?rmly gripped.v
As will be seen, the upper edges of the clamp
the Slot’ which limits its?liding movement and
also transmits rotary mot1on to the sheath when
theThe
rod rod
is turned’
25 is bifurcated at one end portion
and is pivoted on apin 21. Settherein is alever
.
bum?’ ype oh c9 apsl, e u e S _°wmg an em“
50 odiment 0? t e _mvent1°n_ as apphed'
Figure 2 1s a side elevational view of the same.
Flgure 3 1S a hke View but Showing the tube as
partially coiled and the contents escaping from
the nozzle.
55
Figure 4 is a fragmentary sectional view taken
20
25
30
seam, while their lower edges are integrally con
nected by a tubular sheath 22, which, like the
clamp plates, extend the full length of the seamed 35
portion of the tube 15.
The sheath 22 is provided with a straight nar
rovv slot 23, preferably in its wall, opposite the
clamp plates, and slidable in the sheath is a I‘Od
25 having intermediate its length a ?attened 40
nodule 2B, struck outwardly to slidably engage in
rangement of few and Simple parts hereinafter
described
and .illustrated
in the
accompanying
.
.
.
45 drawmg’ constltutmg 2‘ mammal component of
t, Flgluie 1 1S 5; fro?t elfilatlsnsl vl?w (,)f a column‘
15
plate extend only to the flattened portion of the
accomplished by the novel construction and ar-
this . disclosure
.
’ and in which:
.
10
Figure 10 is a sectional view, similar to Fig. 4,
45
.
_
l1ke
handle 28 havmg
a head 29 of greater di
ameter than the interior of the sheath, and by
which the rod may be withdrawn, the handle
turned on its pivot and thereafter used to rotate 50
the rod and the sheath in curling the compres_
sible tube thereon, these elements acting as a
winding mahdreh
When the element 28 is turned to extend into
the rod, the head 29 only reaches beyond the de- 55
2
2,133,754
vice, but when the rod is drawn outwardly, and
the handle turned at a right angle, an eil’ective
leverage is obtained whereby the tube may be
readily compressed and its contents forcibly de
livered at the nozzle l6, as indicated in Figure 3.
In the modi?cation, shown in Figures 6, 7 and
8, the tube seam I8 is enclosed between plates 30
one of which, in this case, is provided with in
reaching clips 31 slidable along depressed longi
10 tudinal trackways in the seam.
The plates are integrally connected at their
lower edges by a tubular sheath 32 in which is a
slidable rod 33 provided with a handle 34 by
which the mandrel, thus formed acts as a
nucleus for the collapsible tube as it is wound
thereon.
In this type of clamp coiling mandrel the
sheath is reduced at one end to receive the head
of the rod 33, turned into the position shown in
Figs. '7 and 8, to avoid occupying excess space
in the carton in which the tube is packed.
In the modi?ed form seen in Figure 10, the
same arrangement of clamp plates is used, but
the sheath includes two portions 40 and M, of
different cross sectional area, the smaller 40 be
ing receptive of a rod 42 having an enlarged
square rear portion 43, ?tting the section 4|,
thereby limiting the withdrawal of the rod and
providing for rotation.
The lever 44, pivoted in the reduced portion
of the rod, is provided with an enlarged head 45
claimed as new and desired to secure by Letters
Patent, is:
1. A collapsible tube compressor comprising
rigid plates secured on opposite sides of the
closed end of the tube, a sheath integrally con
necting the lower edges of said plates, a slotted
rod limitedly slidable in said sheath, and a ?nger
grip lever pivoted in the slot of said rod.
2. A collapsible tube compressor comprising
clamp plates on the closed end of the tube, a
sheath connecting the bottom edges of said
plates, a coiling key slidable in said sheath, and
means limiting the inward and outward move
ment of said key, said means also operative to
transmit rotary motion.
3. A collapsible tube compressor comprising a
metal blank shaped to produce a straight cy
lindrical sheath having a longitudinal slot in
the wall thereof intermediate its ends, said sheath
15
having a lengthwise opening, plates integral with
the edges of the sheath opening and extending
in parallel to receive the closed end of a col
lapsible tube therebetween, means for rigidly se
curing said plates to the tube end, a rod slid
able in said sheath, said rod bifurcated at one
end, a ?nger grip pivoted in the bifurcated end,
said grip having a circular head at least equal
to the outer diameter of the sheath, and a lug
on said rod operable in the slot of said sheath.
4. A collapsible tube compressor comprising a 30
clip, a cylindrical sheath combined with said
clip, a rod telescopically contained in said sheath,
said rod limited in its movement, a lever-like
handle pivoted in said rod, and a head on said]
as previously described.
It will be understood that the rods and sheaths
in any of the views shown may be of any cross
section, as round, square or otherwise, and of , handle by which the rod may be drawn outward 35
such dimensions as are suited to their purpose.
ly and retracted.
While certain preferred embodiments of this
5. A collapsible tube compressor comprising a
device have been shown and described, it will clip ?xed on the sealed end of the tube, a cy
be understood that changes in the form, arrange
lindrical sheath combined with said clip, a han
ments, proportions, sizes and details thereof may dle slidable in said sheath and means to limit 40
be made without departing from the scope of the longitudinal movement of said handle.
invention as de?ned in the appended claims.
Having thus described the invention, what is
HARRY OSCAR.
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