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Патент USA US3084836

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April 9,- 1963
3,084,826
s. HJERICSO'N
CLOSURES AND METHODS FOR FORMING THE SAME
Filed sept. 15', 1959
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3,084,825
Patented Apr. 9, 1963
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3,084,826
CLGSURES AND METHQDS FOR FGRMING
THE SAME
Swen H. Ericsou, Chicago, ilk, assignor to American
Flange & Manufacturing Co., Inc, New York, N.Y.,
a corporation of Delaware
Filed Sept. 15, 1959, Ser- No. 840,183
1 Claim. (til. 220-24)
applied in place in the center of the head. It is, of course,
to be appreciated that this particular location is not essen
tial, as the closure can be differently positioned on the
head or, also, may be positioned on some other part of
the wall of containers of the same type or of different
types. What is important to note, however, is that the
closure member and the opening closed by it is of sub
stantial size in relation to the size of the head of the
container, it being presently contemplated, by way of ex
This invention relates to closures for containers and to 10 ample, that an opening 6” in diameter will be employed
in a container head of approximately 23” in diameter.
methods of forming the same and is particularly con~
cerned with the vacuum-tight closing of large openings in
the walls of containers of substantial size, such as steel
drums. With improvements in the lining, or plating, of
the interiors of steel drums, and in the processing of ma
terials to be introduced thereinto, it has now become
possible to utilize such containers for the packaging of
It is also contemplated that for special purposes the
closure member 2 will be equipped with another smaller
closure within the con?nes of its base 3.
The closure member 2, as seen in FIG, 2, is made as
a shallow cup-shaped member whose base 3 is bordered
by a cylindrical upstanding wall portion 4 which is turned,
or beaded, outwardly and downwardly at 5 into a wall
portion 6 extending in spaced parallel relation with respect
etc., and maintain them in such containers under vacuum.
Drums of such materials, ?lled and closed under vacuum, 20 to the wall portion 4 providing the channel 7 therebe
tween. The wall portion 6 is ?anged outwardly at its
can then be stored for periods of time, measured in years,
food products, other perishables, chemical concentrates,
without variation of the contents.
Large quantities of
preserved material can thus be kept available for use
when desired.
bottom edge as seen at 8 for purposes which will appear
hereinafter. The closure member would normally be
made of sheet steel somewhat lighter than that of the
Problems have arisen, however, in the provision of 25 container wall but could be of the same weight material.
openings of suf?cient size to enable drums, such as those
up to 55 gallons in capacity, to be quickly ?lled and then
to be effectively closed so as to retain the vacuum after
The base of the channel 7, beneath the bead 5, is ?lled
with a gasket 9, preferably formed by ?owing a fluid com
pound in place therein and then allowing the compound
to set. This assures that the gasket will be in complete
?lling. Such problems are overcome by the closure and
30 engagement with the wall of the channel throughout the
method of closing of the instant invention.
cross-section of the gasket, and provides a gasket of the
It is accordingly an object of the invention to provide
proper conformation for the intended purpose.
closures of substantial size for closing similarly sized
The drum wall 1 is provided with a suitable formation
openings in the walls of containers.
for effective cooperation with the closure member, so that
Another object is to provide opening formations for
35 the same may be easily seated in place thereon by me
receiving such closures.
chanical action within a sealed vacuum chamber, and to
Still another object is to provide methods for closing
thereafter cooperate with the closure member to enable
such openings for assuring the maintenance of vacuum
a long lasting vacuum-tight joint to be made. Thus the
within the container.
container wall formation around the opening includes a
A further object is to provide such closures and meth
ods for effecting the application of the same which can 40 ?rst downwardly and inwardly inclined annular portion
19 extending to a bend 11 from whence a second an
be applied and carried out from the outside of the con
tainer once the container is otherwise formed.
nular inclined portion 12 extends upwardly and inwardly
and from whose inner end a cylindrical neck 13 is drawn
upwardly to border the opening 14.
ods of effecting the application of the same which can be
Referring now to ‘FIG. 4, it will be seen that the closure
applied and carried out while the Whole of the container 45
A further object is to provide such closures and meth
member 2 is ?rst seated down about the opening 14, with
the wall portions 4 and 6 and the bead portion 5 form
ing, in effect, a hook to hang the closure member within
are of su?icient size to have an additional opening and
the opening. The base 3 closes the opening and the wall
closure member therefor incorporated therewithin.
Further and more detailed objects of the invention will 50 portions 4 and 6 with the neck portion 13 therebetween
are mated together in concentric relationship. When the
in part be obvious and in part be pointed out as the de
seating has proceeded to its proper extent in order to
scription of the invention, taken in conjunction with the
properly compress the gasket 9 and ?ow the same about
drawing, proceeds.
the upper end 15 of the neck 13 to form a positive seal,
‘In that drawing:
LFIG. 1 is a fragmentary top plan view of the head of 55 further compression will be checked by the engagement
of the ?ange 8 with the outer surface of the inclined
a drum showing the closure member of the invention ap
portion 12, thus protecting the gasket against undue com
plied thereto;
pression or destruction.
'FIG_ 2 is a fragmentary exploded sectional view of the
Actually, under working conditions within the vacuum
drum opening, showing the closure member in position
60 chamber, the closure member 2 will be held in position
to be seated therein;
above the drum head until the drum is filled and will then
FIG. 3 is a part sectional, part elevational view, en~
be carried into the seating position within the opening
larged as against the ‘FIG. 1 showing, of the closure mem
14 by means of the mechanism for effecting the crimp
ber of the invention secured in place in a container wall
is under vacuum.
A still further object is to provide such closures which
opening;
ing in place of the closure, The holding is effected by
the closure member seated in place in the opening there
into the actuating spindle 17 of the crimping tool. This
crimping tool, only the essential features of which are
shown here, is equipped with a plurality of segmental ex
FIG. 4 is a vertical section of a container wall with 65 the magnet element 16 seated in a recess extending up
in and showing the securing mechanism in position to be
actuated; and
‘FIG. 5 is a view, similar to FIG. 4, showing the secur
panding jaws 19 carried by outwardly slideable members
70 20 which ride within a recess 22 provided in the anvil
member 23. When in retracted position the composite
In FIG. 1 a drum head is shown at 1 as having its
peripheral surfaces of the jaws 19 form a complete circle.
opening closed by the closure member 2, of the invention,
ing as having been completed to complete the closure.
3,084,826
The jaws 19 have radially outwardly extending rounded
projecting portions 21 formed to engage the lower part
of the side wall 4 of the closure member at a position
receiving formation including an annular wall portion in
clined with respect to the radius of said opening upwardly
and inwardly with respect to the plane of said container
to forceit outwardly against the undersurface of the por
tion 12 bordering the container wall neck. Above their
wall and a neck portion at the inner end of said upwardly
projecting portions 21 the jaws 19 are recessed radially
the form of a section of a cone departing at an abrupt
inwardly to an inclined portion 24. The uppermost part
of the portion 24 just engages the uppermost portion of
and inwardly inclined portion, said neck portion being in
angle from said inner end of said inclined portion inclined
outwardly in its upward extent, and terminating in a free
cut edge a closure member secured to said closure open
the wall 4, inside of the bead 5, when the tool is in
relaxed position as seen in ‘FIG. 4. This serves to keep 10 ing, said closure member including a disc-like closing
the member 2 centered ready for application to the open
ing formation. ‘Once the closure member 2 is seated in
portion and an upwardly extending securing portion, said
securing portion being formed with an upwardly and in
place in'the opening, the spindle 17 is retracted upwardly
wardly inclined portion underlying and tightly engaged
carrying elements 29. This expands the jaws members
and outwardly extending portion extending at an abrupt
with the undersurface of said ‘upwardly and inwardly in
with its conical outer surface 25 riding within the conical
surface portions 26 of the jaw members 19 and their 15 clined portion of said opening formation, an upwardly
19 radially outwardly to secure the closure member in
place.
The solid anvil 23 is provided with an annular work face
27 which surrounds the assembly of closure member and
opening formation. It lies closely adjacent to the Wall
angle from said upwardly and inwardly extending portion
of said securing portion and lying within and against the
inner surface of said neck, an outwardly turned bead por
tion extending across the outer end of said neck, a down
wardly and inwardly inclined securing portion engaged
with the outer surface of said neck and a flange portion
portion 6 so that as the jaws 19 are expanded outwardly,
extending laterally outwardly from the lower end of said
the surface 24 thereof will bend the upper part of the wall
downwardly and inwardly inclined portion and lying
portion 4 and the wall portion 6 of the closure member
with the neck 13 embraced therewithin outwardly into 25 against the outer surface of said upwardly and inwardly
inclined annular portion of said opening formation, said
the position shown in FIGS. 3 and 5. At the same time
?ange and said upwardly and inwardly inclined portion
the projections 21 will force the lower part of the wall
of said closure member clamping said upwardly and in
wardly inclined portion of said annular wall portion
closure member will be tightly engaged with the container 30 therebetween, a gasket engaging said free cut edge, said
4 outwardly beneath the opening formation portion 12
and tightly up thereagainst as seen at 23.
Thus the
wall stock on both the inside and outside thereof, with
the ?ange 8 and the portion 28 gripping against opposite
sides of the portion 12. The gasket 9 will be tightly
held in a sealing position so that effective closing against
vacuum and maintenance of that closing will be assured. 35
gasket and said conenshaped section being clampingly
engaged by said bead portion and said portions of said
closure member engaged with said neck.
References Cited in the ?le of this patent
Though, in the foregoing, the presently preferred modi
?ed form of the invention is shown and described, it is,
of course, to be understood that this showing and descrip
tion is for illustrative and not for limitingpurposes.
Having described my invention, what I claim is new 40
and desire to obtain Letters Patent for is:
UNITED STATES PATENTS
1,189,294
Ruggles _____________ __ July 4, 1916
1,266,519
2,060,145
Newman ____________ __ May 14, 1918
Vogel ______________ __ Nov. 10, 1936
Closure construction for containers comprising a con
tainer wall formed with an opening therein and a closure
11,101
Great Britain ________________ __ 1897
receiving formation bordering said opening, said closure
1,047,309
France ______________ __ July 22, 1953
FOREIGN PATEI‘JTSv
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