US2324484A - Container - Google Patents

Description

' July 20, 19 J. CEREGHlNb CONTAINER- Filed March 26, 1941 I mv NTOR I NJ; 9

41. $5M ATTORNEYS Patented July 20, 1943 UNITED STATES- PATTENT OFFICE- Am'erican Gan Company, -New York, N. Y., a corporation of New Jersey ApplicationMarch 26, 1941,Se1 "ial No. 385,361

. 2 Claims. This invention relates to band sealed sheet metal cans or containers 'of the key opening variety and has particular reference to aripstrip set off by a score line in the wall of a sealing band used to hermetically seal lined hemmed cover and body edges in an end joint, which cover may, be readily detached from the can by application of a suitable key adapted to pry and engage a projecting tongue end of such a strip by .a suitable key. having a slotted shank which is'used'to engage the tongue and wind off the rip strip by severing it along the score line thereby destroying the band seal and exposing the flanged edges of the body and cover. Another object of the invention is the proviand to sever the strip along the score line and sion of a rip-strip formed by a scored wall in after removal of the band the freed cover may the sealing ring of a band sealed container wherebe'lifted from the container. in such a ring is adapted to embrace the out- The invention contemplates the provision of a wardlyhemmed edges on both'a flanged body and band sealed container of the typecommonly ema countersunk gasket or compound lined cover ployed in packing fish, meat and the like, which 5 in a hermetically sealed end joint, such rip-strip is adapted to be hermetically sealed by a U- upon being severed, permitting removal of the shaped band or ring having circumferential upper band seal and uncovering the smooth hemmed and lower walls or flanges which embrace the edges of the container and its cover. peripheral mating edges of a lined cover and Numerous other objects and advantages of the body, the edges of which are hemmed to make invention will be apparent as it is better under a solid seatand a. rigid shoulder for the recepstood from the following description, which, tion of a usual form-of sealing gasket or'comtaken in connection with the accompanying drawpouhd disposed therebetween. The sealing band, ing, discloses a preferred embodiment thereofl is preferably formed of thin malleable metal Referring to the drawing which is easily bent into shape such a band hav- Figure 1 is'a plan view of a container sealed ing a scored orweakened line out in the inner or by a scored band in accordance with the present. upper wall and setting off a rip-strip, such a ripinvention and showing a key for opening the strip having the usual tongue projecting there same; o o from and overlapping the terminal edges of the 1 Fig. 2 is aside elevation of a band'sealed consealing band. V tainer; and The instant type container is also provided Fig.3 is an enlarged fragmentary detail with a specially designed opening key whichis section as viewed along the line 33 (Fig. 1) attached to the cover of the container in a suitshowing the hemmed cover'and body edges united able manner, as by welding, and which is adapted by the scored band. to be broken "off at a definite weakened'section As a preferred embodiment of the invention of the key. Such a key may have a flattened there is shown in the drawing a band sealed conand slotted shank, the shank having angula or tainer I I, having a tubular bod i2 which is V-s'haped edges for prying beneath the tearing joined together with a usual form of side seam tongueto raise it'for engagement in the slot of joint l3 (Fig. 2). The lower end of the body has the shank by means of'which the rip-strip may 40 a bottom end member attached thereto in any besevered along the weakened line as it is Wound suitable manner as by a double seam I4. around the key. The lower and remaining parts The upper portion of the container body 12 is of the sealing band thereupon drop away from bent outwardly to provide a substantially hori-* the hemmed edges of the cover and body and the zontal flange or shoulder 15 (Fig. 3) which has uncovered edges then may be pried apart by inits outer marginal terminal edge folded downserting a V-shaped edge of the opening key therewardly and inwardly into a hemmed edge 16. between after which can and cover are easily Such a hemmed edge flange, surrounding the separated .and the contents exposed, ready for open end of a container body, tends to maintain use. it in its cylindrical form and also provides a An object of the invention is the provision of smooth and rigid sealing surface bordering upon a rip-strip contained in an upper wall of a U- the mouth of the container. shaped sealing band .and set off by a scored or A cover I! is arranged to close the mouth of weakened line out in a marginal edge of the the container and is formed with a countersunk wall, which band hermetically seals adjacent outsection orpanel l8, bordered by an annular upwardly projecting flanges of a can body and a standing wall which is arranged to frictionally This gasket allows for the hermetic sealing of the container. Such a sealing material may be deposited upon the cover flange while in a liquid state in a conventional manner, prior to the cover being assembled with the container.

An annular U-shaped sealing band or ring 25 is formed with an outer or upper wall 26 and a substantially parallel inner or lower wall 21. The

upper wall 26 has an annular scored or weakened section 28 cut on the inner surface which is preferably located at the outer margin of thewall where it merges into a curved connecting Wall 29 of the sealing band. The weakened section 28 is adapted to set off a tearing or rip-strip 32 in the upper wall 26. The rip-strip has an extended tongue 33 (Figs. 1 and 2) which overlaps the terminal end of the sealing band and which is arranged for engagement with an opening key for the removal of the rip-strip.

An opening key 34 (Fig. 1) preferably of the break-01f type, may be attached to the cover I1 in any suitable manner as by welding. Such a key is made from a strip of round wire stock and is formed into a body or'shank section 35 with a looped or handle section 36 at one end. The shank section 35 is flattened and an elongated slot or opening 31 is cut in the flattened section midway between the handle and the shank end of the key. Such a slot provides for engagement of the tearing tongue of the container in the usual manner for the removal of the tearing strip in opening the container.

The key 34 has a weakened section 38 and an adjacent tail part 39 welded to the cover and Y which remains secured to the cover afterthe key has been removed. The upper flattened wall of the key shank 35 (Fig. 1) has its opposite edges beveled as at 42 in V-shaped or angularfledged parts.

Upon removal of the opening key 34 from the container cover of a sealed container, one ofthe' v-shaped edges 42 is used to pry or raise the tearing tongue 33 so that the slot 31 in the flattened shank may be positioned over the tongue and V the rip-strip 32 is then wound off as the key is turned in the usual manner, this action severing along the score line 28 and separating the upper wall 26 from the ring seal 25.

Upon the removal of the tearing strip 32,'the

remainder of the sealing band 25 drops from its sealing position and exposes the hemmed edges I5' and 22 of body and cover. One of the tapered edges 42 on the flattened shank of the key 34 may then be inserted between the hemmed body and cover edges or directly into the sealing material 24 to separatethe parts. Where the container has been vacuumized this breaks the vacuum seal after which the cover may be separated easily. This opens the container and exposes its contents. 4 r

The hemmed edge of the opened container is smooth having no raw or rough edges exposed. The cover may be reinserted into the mouth of the container in a friction fit when desired to serve as a temporary reclosure.

It is thought thatthe invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

l. A hermetically sealed sheet metal container; comprising a tubular body having alaterally extended flange at its outer end constitutingh shoulder terminating: in' a hemmed edge, a cover for said body havinga depressed coun tersunk section defined by an upstanding wall disposed in frictional engagement with the interior wall of 'said body, said wan merging into an outwardly extended flange terminating in a hemmed edge, a sealing gasket interposed between the body shoulder and the cover flange; and a; sealing ring for sealing the container, said sealing; ring having upper and lower substantially parallelannular constitute a removable rip -strip, said rip-strip.

being severable from said sealing ring to break said sealed joint andpermit rernoval of the cover when the sealing ring is thus removedgy 1" 2. A hermetically sealed sheet metal container,

comprising a 9 1 9 1 5 bQdy aving-a latera ly-6 tending flangeatone end constituting 'a shoulr.

der, a countersunk cover having anj upstanding wall portion disposed in frictionalengagemeht with. the interiorwall of said body an'dterminat ing in a laterally extending flangevcorresponding to and engaging the said bodyshoulder when the parts are assemblediandia' sealing ringhaving annular spaced flange in a ring sealed joint, one of said parallel sealing ring walls being set off by a peripheral score linefrom the remainder of said ring to con stitute a' removable rip-strip for separating the V spaced ring walls in opening the containers JOSEPH CEREGHINO.

substantially. parallel. :walls: adapted to embracethe body. shoulder and 'cover

Images