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Патент USA US2274258

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Feb. 24, 1942.
_
w, A_ ROSELLE,
'
2,274,258
CONTAINER
Filed Oct. 30, 1939
INVENTOR
' M56721 .RoseZZe
Patented’Feb. 24, 1.942
2,274,258‘
UNITED STATES‘ PATENT OFFICE‘
Application October 30, 1939, Serial No. 301,886
5 Claims. , (Cl. 221-69)
My invention relates particularly to improve
ments in- containers having bodies formed of
laminations of metal and non-metal secured to
non-metallic outlet members and especially to
what are frequently called collapsible tubes of
the general character of my Patents Nos. 2,002,718
and 2,038,760.
By my present invention I have sought to sim
suitable for union with the top l2. The outside
I 3 may also be of the same composition.
I have found that material such as a cellulose
acetate composition which is capable of being
molded and also capable of being formed as a
_ thin ?lm is especially adapted to my purpose.
A. commercial molded composition known as
“lumarith” and a ?lm known as “protectoid” may
plify the method and reduce the cost of con
struction. Another object is to provide a type 10 be used as examples of the type or class of ma
terials capable of being united by the use of a
of construction which is capable of reducing mois
solvent
such as acetone'or mono methyl ether
ture loss of the contents to a minimum.
of ethylene glycol or a combination of the two.
In carrying out the invention I provide a body
A commercial form of solvent is known as “methyl
portion and an outlet or top and in effect secure
them together autogenously. The bodyv consists 15
cellosolve.”
.
Another commercial product suitable for mold
ing is known as “tenite.” The corresponding ?lm
material is known as “kotopac.” A similar sol
of laminations of metallic foil and non-metallic
?lm and the top is formed of a molded composi
tion similar to the composition of the ?lm. The
vent may be used.
‘
top has a groove with inner and outer walls to
I
have
also
found
that
the
top
may
be
formed
which the inner and outer surfaces of the mouth 20 of a material such as a vinyl resin compound as
of the body are secured. The body and top are
l for example “Bakelite polystyrene” and the body
united by applying to the parts to be united a
surface of a ?lm of substantially the same sub
chemical capable of dissolving or softening the
stance. In that case the solvent may be ethyl
surface of the material of the top and of the ?lm
acetate.
so that they cohere without substantial change 25
The top is provided with ‘a cylindrical or other
of structure when the solvent evaporates. In
shaped wall It to ?t the inner edge of the mouth
other words'the two parts become welded to
of the tube ‘body. The top also has an outer
gether. The joint between the parts may bear
wall IE to ?t the outer edge of the mouth of the
ranged in various ways such as shown herein and
tube body. Between the walls l4 and I5» is a
the composition employed may be varied.
30 groove l6, and the edge of the tube body is in
Fig. 1 is a sectional view showing a simple
serted into this groove after ?lling‘ the groove
form of joint involving a one-piece top with a
or coating the edge of the tube body with the
groove.
solvent. ~ The walls of the vgroove may be tapered
Fig. 2 is a sectional view showing a top in which
slightly so that the edge of the tube body may be
the inner. support for the body wall is formed by 85 wedged in. This is desirable and practical be
an inserted ring secured to the remainder of the
cause of the fact that the solvent softens the
top.
surface of the ?lm and of the groove walls.
Fig. 3 shows another form of joint in which
The bottom of the tube may be closed at I‘! in
the mouth of the tube body is ?anged inwardly
any suitable manner.
.
~
and secured between the main part of the top and
On
account
of
the
fact
that
in
some
cases
it
an inner ring.
may not be practical to form a groove of su?icient
Fig. 4 shows another modi?cation similar to
depth in’the rim of the top, I may provide -a
Fig. 3.
separate ring I 8 of the same compositionvas? the
Fig. 5 shows another form of joint in which an
45 top and which furnishes the inner support-‘for
exterior reinforcing ring is provided.
the edge of the tube body and maybe welded‘lor
Fig. 6 also shows an external ring as a part
autogenously united with the tube body and vto
of the top.
.
., i
the wall I9 of the top. This takes the place of
Fig. 7 shows another form of joint with an
the wall H of Fig. 1. y
inside ring.
.
r
_In Fig. 3 I have shown another modi?cation
The body l0 of the tube is formed of layers of 50 with
an inner ring 20 of they same or similar com
metallic foil and non-metallic ?lm secured to
position to that of the top. The edge 2| of the
gether in any suitable manner and rolled either
tube body is ?anged over and secured in the
‘helically orv spirally. The foil may be such as
groove 22 in the edge of the ring 20. The solvent
aluminum, tin or anyother suitable metal. The
causes the ?lm oi the body to unite with‘ the
?lm II on the inside should be of a composition '5 ?ange IS, the ring 20 and the wall 23 of the top.
2,274,258
2
?lm, at least the inner and outer surfaces of the
tubular body received within said groove being
of similar chemical composition to the surfaces
strong joint between the tube ‘body and the top.
of the adjacent walls of the top member for
>Fig. 4'shows a similar arrangement but the
groove 22' is formed in the main part of the top in autogeneously welding the inner and outer groove
walls of the top, and said walls and body being
member and is inclined somewhat and the edge
so welded whereby the inner wall supports the
2|’ is ?anged inwardly at an angle somewhat
body against collapse and the outer wall supports
less than 90°. The ring 20’ is secured to the wall
the body against expansion, the inner wall being
28' of the top and to the edge of the tube body
' The ring is similarly united with the wall 23 of
‘the top member. This a?ords an especially
by a suitable solvent action as before described.
In Fig. 5 the groove I6’ is made somewhat wider
than groove l6 of ‘Fig. 1 so as to accommodate
a ring 25 of a compositionanalogous to that of
the remainder of the top. This ring is welded or
thicker than the wall of said tubular body and
the end of the laminated body being sealed in
the groove, between the inner and outer walls
of the top member.
2. A collapsible container comprising a top
member of molded plastic non-metallic composi
autogenously or homogeneously united to the
tion having a transversely continuous rigid sup
outer wall of the body and to the wall I5 and to
the top of the groove Hi. This ring may be . porting inner wall, an outer wall spaced from
the inner wall with a groove between them, and
tapered in section so that it may be wedged into
a tubular ?exible body formed of laminations
the groove 16. and thus afford a stronger joint.
In Fig. 6 another modi?cation is shown in 20 of metallic foil and of plastic ?lm, at least the
inner and outer surfaces of the tubular body
which the top has a ?ange 21 to'which the edge
received
within said groove being of similar chem
28 of the mouth of the body is attached. This
ical composition to the surfaces of the adjacent
edge 28 may be ?anged over the upper edge of
walls for autogenously welding the inner and
the ?ange 21 to provide additional holding power.
The outer anchorage wall 28 is formed on ya ring _ outer groove walls of the top, and said walls and
body being so welded that the inner wall supports
29 instead of as a part of the top and this ring
the body against collapse and the outer wall sup
has a ?ange 30 which is seated on the ?ange 28
ports the body against expansion, the inner wall
(or_2‘l in case 28 is omitted). Itshould be under
of the top being thicker than the wall of said
stood that these parts are all united by means
tubular body and longer than the outer wall of
of a solvent so that in effect they all constitute
the top, whereby the body may be pressed against
one piece when united.
the inner wall while being welded to the top and
Fig. '7 shows a form similar to Fig. 3 except
the inner wall reinforcing the body adjacent the
that the ring 20' is welded to the body-lining only
groove against being distorted and bent by ex
and not directly to the top.
In selecting the composition to be used as the 35 ternal pressure to insure the security of the body
in the groove.
top and lining of the tube, due regard will of
3. A collapsible container comprising an inte
course be had as to the character of the sub
gral top member of molded plastic non-metallic .
stance with which the tube is to be ?lled. The
composition having a transversely continuous
composition must of course be inert or insoluble
rigid
supporting ?ange or wall, an end wall or
40
with respect to the contents. It should also be
abutment extending outwardly from said ?ange
substantially moisture proof and should not im
and ‘a, tubular ?exible body formed of lamina
part any disagreeable odor or taste to the con
tions of metallic foil and of plastic ?lm, said
tents. The ?lm used in a collapsible tube should
body ?tting over said ?ange and being of less
4 be very pliable so that it will not crack when bent.
thickness than the ?ange, at least the inner and
Any suitable form of closure device may be
outer surfaces of said body adjacent the top being
employed and of course the top' will be suitably
of material similar to that of the top and the
constructed to carry the type of closure desired.
The word "solvent" is used here in the sense
inner surface being pressed against and ,autog-
enously welded to the top along the ?ange, the
end wall or abutment being also welded to the
ends of the inner and outer surfaces of the body
In the form shown in Figs. 1, 2, 3, 4, 5 and 7
and the end of the laminated body hermetically
it is possible to apply pressure to the outer wall
of the body around the part which is supported
sealed.
4. A collapsible container comprising a one
by the ?ange H in Fig. l or Fig. 5 or the ring
l8 in Fig. 2, or the ring 20 in Fig. 3, or the ring ; piece top member of integral molded plastic non
metallic composition having a transversely con
28' in Fig. 4 or Fig. 7, so as to aid in the union
tinuous rigid supporting inner wall, an outer con
between the parts.
'
centric wall integral with but spaced from the
In the forms shown in Figs. 2, 3, 4, 6 and '7 the
inner wall with a groove between the walls, and
main part of the top and the ring may be pressed
v together for the same purpose.
60 a tubular ?exible laminated body formed of
metallic foil with inside and outside layers of
The invention is especially directed to collapsiplastic ?lm, at least the end portion of the body
ble tubes where the problem of adequately-uniting
within said groove having an inner surface of a
thin ?exible material to a more or less rigid top
chemical composition similar to that of the top
has been found so di?icult. In its broader asmember to be welded to the inner wall thereof,
pects, however, I desire \that the claims be limited
said inner wall being welded within said groove
- only by their termsand as required by- the prior
to
at least the inner surface of the tubular body,
art.
1
the inner wall of the top member being thicker
I claim:
,
.
than the wall of said tubular body and longer
1. A collapsible container comprising a one
than the outer wall of the top member to form‘
piece top member of molded plastic non-metallic
an extended welded union, said inner wall of the
composition having a transversely continuous
top member also reinforcing the body of the tube
rigid supporting inner wall and an outer wall
outside and adjacent said groove to insure the
spaced‘from the inner wall with a groove be
security of the body in said groove.
tween them, and a tubular ?exible body formed
5. A collapsible container comprising a top
of laminations of metallic foil and of plastic
of temporarily softening the surfaces sufficiently
to enable the elements to unite.
‘
2,274,258
member of molded plastic non-metallic composi
tion having a ?ange constituting a continuous
rigid supporting inner wall, a second ?ange ‘con
stituting an outer wall spaced from the inner
wall with a groove between them, and a tubular
?exible body having inner and outer surfaces of
plastic composition, at least the inner and outer
surfaces of the tubular body received within said
‘
3
the inner ?ange supports the body against col
lapse and the outer ?ange supports the body
against expansion, the inner ?ange being thicker
than the wall of said tubular body and longer
than the outer ?ange to support the body, where
by the body may be pressed against the inner
- ?ange while being welded to the top member
and the outer ?ange shields the body against
groove being of similar composition to the sur
being expanded and bent around an end of the
faces of the adjacent walls of the top member 10 outer ?ange by internal pressure.
and autogenously welded to the inner and outer
walls of the groove of the top member whereby
WALTER A. ROSELLE.
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