US2044677A - Metal container - Google Patents

Description

Jurrle 16, 1936. E. W. FREEMAN METAL CONTAINER Filed March 29, 1955 l I .w

Patented `une 16, 1936 UNITED. STAT-Es PATENT OFFICE i METAL CONTAINER Ernest W. Freeman, Passaic, N. I., assgnor to Continental Can Company, Inc., New York, N. Y., a corporation of New York Application March. 2:9, 1935, serial Ne. 13,736

' 2 claims. (c1. 22o- 27) The invention relates `to `new and useful improvementsin a( `metal container of the friction closure type an-dmore particularly to a container `wherein a frangible sealing member is used in conjunction with the frictionclosure.

An objectief the invention isjto provide a con- -tainer of the above typefwherein the can top is so'shaped, that aportionthereof contacting with theinner Wall of the eontainerbody may be utilized for clamping .a sealing disc 'against a seating ledge formed in the body wall of the container.` l,

uReferring to the drawing: Fig. 1 is a view partially in side elevation and partially in section showing the improved container.

Fig. 2 is an enlarged vertical section View taken through the upper part of the container.

Fig. 3 is a View similar to Fig. 2 but showing the container before the double seam is completed for joining the can top to the body portion thereof.

The invention relates particularly to armetal container of the -friction closure type having a frangible sealing member used in conjunction therewith. The container comprises a body portion preferably of metall having ends seamed thereto,V one of said ends being in the form of a can top having a central opening and a vertical friction wall surrounding said opening. A fric-V tion closure is provided for the container, said closure being adapted to frictionally engage the vertical friction wall of the can top for closing the container. The body of the container has a portion thereof shaped so as to form a seating ledge. A frangible sealing disc is provided for the container and is adapted to extend across the opening in the can top, beneath the friction closure and have the peripheral edge portion thereof rest on the seating ledge formed in the body wall. The can top has a portion thereof bent downwardly an-d thence upwardly to form a clamping member for clamping the edge of said disc against the seating ledge for holding the same in place. The body wall of the container adjacent the seating ledge formed therein is slightly bulged outwardly so that a disc of greater diameter than the inside diameter of the container may be snapped into the pocket thus formed by the outward bulge in the can body.

Referring more in detail to the drawing, a container embodying the invention is indicated at 4. The container is preferably of metal comprising a body portion 5 having ends 6 and 'I double seamed thereto. The bottom double seam is indicated at 8 and the top double seam at 9. The

top end 1 or can top as it is usually called, has a centralopening with a vertical friction wall 9 surrounding said opening. A friction closure I0 is provided for the Vcontainer having a depending friction wall II which is adapted to engage the vertical friction wall 9 of the can top. The friction closure isprovi-ded with `an outwardly extending hollow bead I2 at its upper end beneath which a tool may be placed for prying the closure upwardly when it is desired to remove the same. The body wall of the container has `a portion thereof bulged outwardlyas indicated at I3 and thence inwardly as indicated atV I4 to forni a pocket I5 and a seating ledge I6 therein. A frangible disc I'I is adapted to extend across the i5 container beneath the friction closure and have the edged portion thereof snapped into the pocket I5. The ledge II in the container body beneath the pocket forms a support for the peripheral edge of said disc. The disc I1 is preferably made 20 of paper, but could be of aluminum, taggers tin or any other frangible material. The can top I has a portion thereof bent downwardly as indicated at I8 and thence upwardly as indicated at I9 to form a clamping member 20 for the frangible disc. The downwardly bent portion I8 contacts with the inner wall of the container body and the clamping member 20 is adapted to press `the sealing disc I'I against the seating ledge I6 provided therefor.

In Fig. 3 of the drawing, the manner in which the can top and sealing disc are assembled to the container body is shown. The disc is first snapped into the pocket provided therefor and the can top is inserted within the can body with 35 the clamping member formed therein contacting with the upper face of the sealing disc. The bend in the metal of the can top which forms a clamping member is so dimensioned as to leave a slight space between the flange ofthe can top 40 and the flange of the can body. When the container is placed in the double. seamer and raised against the chuck by the base plate or can support, the can end will be forced into the can and the clamping member will be forced against the 45 sealing disc and held in contact therewith during the forming of the double seam. The tightness with which the frangible disc is clamped against its seat is there determined by the base plate pressure set on the double seamer which forms the double seam. As in all containers of this type, the disc is inserted, the can top seamed to the container and the container is thus shipped to the packer who fills the same through the 55 bottom and thereafter seams the bottom end 6 thereto.

When it is desired to open the container, the friction closure is first pryed off and the frangible disc is cut away by a knife or other sharp instrument. Should the disc be ruptured when the container is rst opened, it would indicate that the contents of the container had been tampered with.

From the above it will be apparent that a container has been devised wherein novel means are embodied for clamping a frangible disc to a portion of the container body beneath the friction closure provided therefor. While the container described in the invention is circular in shape, it can be readily seen that a disc could be inserted in an ovel container by employing the same means as set forth in this invention.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:-

1. A metal container comprising a body portion having a can top seamed thereto, said can vtop having a central opening and a vertical friction wall surrounding said opening, a closure adapted to make frictional contact with said wall, said body portion having the wall thereof, at

a distance below its upper edge, shaped so as to form a seating ledge, and a rangible disk eX- tending across said opening beneath the friction closure, said disk terminating at the body wall and having the peripheral edge thereof resting on the seating ledge, said can top having a portion thereof folded back upon itself and contacting with the inner wall of the container, said folded back portion being so dimensioned as to clamp the edge of said disk against the seating ledge for holding the same in place.

2. A metal container comprising a body portion having a can top seamed thereto, said can top having a central opening and a vertical friction Wall surrounding said opening, a closure adapted to make frictional contact with said wall for closing the container, said body having a portion thereof shaped so as to form a seating ledge and a portion thereof bulged outwardly adjacent saidseating ledge for forming a recess, and a frangible disc of greater diameter than the inside diameter of said container extending across said opening beneath the friction closure and adapted to be snapped into said recess, said disc having the peripheral edge portion thereof resting on the seating ledge, said can top having a portion thereof contacting with the inner wall of the container and being so shaped as to clamp the edge of said disc against the seating ledge for holding the same in place.

ERNEST W. FREEMAN.

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