US1773947A

US1773947A - Container

Info

Publication number: US1773947A
Application number: US287866A
Authority: US
Inventors: Converse B Cadwallader
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1928-06-23
Filing date: 1928-06-23
Publication date: 1930-08-26
Anticipated expiration: 1947-08-26

Description

Patented Aug. 26, 1930 UNITED STATES PATENT OFFICE coNvERsE B. CADWALLADER, F CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY CONTAINER Application filed .Tune 23,

This invention relates in general to an improved container for the packaging and dispensing of rolled oats, peanut butter, popcorn, coffee and a variety of other products. It has more particular reference to sheet metal containers having a frangible seal or fibre drum head at one end in connection with an outer closure of the interrupted thread type.

An object of my invention is the provision of a drum head construction which isvery simple andlinexpensive to make, which is leak-proof, moisture-proof and insectproof, and which serves as temporary bottom when the container is filled through the opposite end.

Another object of my invention isthe provision vof a compound lined frangiblel seal for such a container which is easily assembled while being supported by an inwardly extending or inverted annular bead formed out of the container body.

Still another ob `ect of my'invention is the provision for such a container of a supplementary or outer closure of the interrupted thread type, which is constructed so as to positively exclude all kinds of insect pests, such as weevils which are attracted for instance by rolled oats.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the foliowing description, which, taken in connection with the accomanying drawings, discloses a preferred emodiment thereof.

Referring to the drawings Figure l is an elevation of one form of container embodying my invention with an outer cap or closure shown in dissembled po-' sition;

Fig. 2 is an enlarged vertical section showing the upper parts of the container in fully assembled position, and

Fig. 3 is another enlarged,-fragmentary vertical section showing the position and shape of the drum head blank, lining compound and container top before the assembly is completed.

To illustrate a preferred embodiment of my invention. I have shown on the drawings "1928. serial No. 287,866.

a cylindrical container body 11 of sheet metal having a bottom end 12 double seamed or otherwise permanently secured thereto. T t is customary to fill this type of container through the bottom. hence the bottom end 12 is not applied until after the filling of the container has taken place. l

A short distance below its top edge, the container 11 is provided with an outwardly extending stop bead 13. Just above the stop bead 13, the material of the container body is drawn to provide a series of outwardly yeX- tendingobliquelyarranged beads or interrupted threads 14.

The material-of the container above these interrupted threads 14 is straight and vertical at 15 and then at a'point of bend 16 it extends inwardly and upwardly'forming a lslanting wall 17, and then continuing up- 'lyextending or inverted bead 18 and a slanting wall 19. At a point of bend 20, the material of the annular container wall continues straight upwardly to forni another vertical wall part 21, which as shown in Fig. 3 is straight to its very top before a drum head (yet to be described in detail) has been finally assembled in place, and isbent inwardly and downwardly to form a curl 22 terminating into a sharp edge. 23, as shown in Fig. 2. when theassembly of the drum head with the container hasbeen completed.

Reference numeral' 24`generally indicates a frangible seal or drum head. It comprises a cup-shaped member of bre, composition or other suitable material which may be made 'moisture-proof, grease-proof and leak-proof in any preferred manner. In blank form, it has a flat bottom 25 and a vertical flange 2G. The frangible seal 24 may be cut from a web of material in disc form and the straight containcr top shown in Fig. 3 may then be used as amold to form the flange 2G as the disc is pushed into the positionshowii in Fig. 3. lVhen this is done, the bottom 25 of the seal 24 engages and is supported by the top edge eration, the material of the can body above the vertical wall Q1 is bent to form the curl 22. This curling operation causes that part of the bottom of the seal Q4 which extends outwardly from the point of Contact with the top edge of the bead 13, and is designated by reference numeral 28, to conform to the shape of the slanting wall 19, and the flange 9.6' of the seal 24 follows the general contour of the curl 22. The sharp edge Q3 of the curl Q2, when the curl 22 has been completely formed. bites into the seal Q4`and tends to stretch the seal radially .so that its y central partis flat and substantially taut.

prises a central In order to make an eXtra tight seal between the drum head and the container body, lining compound or packing 27 of any suitable composition may be employed. The pocket formed by the

container parts

19 and 21 lends itself very conveniently as a receptacle for the compound 27 until part of the latter is distributed by the pressure of the curling operation, as shown in Fig, 2. I

Reference numeral 29 designates an improved supplementary outer cap or closure of the interrupted screw thread type. It compart 30. an annular recess or channel 31. an outer horizontal part 32 and a depending skirt 33. The skirt 33 includes a corrugated or knurled annular part- 34 which provides a roughened finger-hold for the easy application and removal of the closure. Below .the knurled annular part 34 the material ofthe skirt is drawn to provide inwardly extending obliquely arranged beads `or threads 35 `which correspond in number and location with the threads 14 of thecontainer 11 but are relatively shorter and are adapted to engage the threads 14 to lock the can in place when the cap is fully applied.

rl`he cap E29 is made with the lowermost anrular part 36 of the skirt bent slightly inwardly as shown-in dotted lines in Fig. 2.- lVhen the cap Q9 is 'only partially applied, that4 is to say, when the threads 14 of the body and the cooperating threads 35 of the cap have not been fully engaged, the cap 29 assumes the position shown in dotted lines in Fig. Q. the edge of the part 36 resting lightly against the curved part of the stop bead 13. 'hen, however. the cooperating, interl rupted threads of body and cap begin to engage each other, the cap 1s gradually tight-- ened downwardly. the edge of the inwardly bent part 3G is forced downwardly over the convex surface of the stop bead 13 by the wcdging action of the cooperating threads, the bend 36 is slightly straightened out. the metal of the skirt being somewhat resilient, and the result is a constant annular pressure of the edge of part 36 against the convex surface of the bead 13 which makes a continnous metal-to-metal contact between these parts andprevents any foreign matter from entering the container when the screw cap/"1s fully applied. This is an especially desirable condition when the frangible seal has been once broken and the contents of the container are consumed intermittently.

By foreign matter is meant dust and dirt, and in the case'of a container filled with rolled oats or similar food products, insect pests such as grain weevils, which seem to be attracted to this type of food, are positively shut out by the construction of my improved container. A

It will be manifest that the container just described provides a drum head of sturdy construction and one which will permit, as is sometimes desirable, that the contents placed in the container through the bottom, be com'- pacted under pressure.

It is thought that the invention andv 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. c )n struction and arrangement of the parts .vithort 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.

I claim: y

1. A container comprising, in combination, a body having near its top an inwardly extending bead forming a supporting shoulder, a frangible seal adapted to rest against said shoulder. and a lining material disposed between said shoulder and said seal, said body having its top ed fre curled upon said seal to permanently hold the same against said shoulder.

2. A container comprising, in combination,

a body having near its top aninwardlv eX- ,tendmfr bead forming a supporting shoulder. a frar'gible seal adapted to rest against said shoulder. and a lining material disposed between said shoulder and said seal. said body having its top ed ne curled upon said seal to permanently hold the same against said shoulder. a part of said body below said bead being formed with interrupted screw threads. and a threaded cover adapted to engage said threads.

3. A container comprising, in combination, a body having vnear its top an inwardly eX- tending head forming a supporting shoulder, a frangible seal adapted to rest upon said shoulder, said shoulder and said seal. said shoulder forming a pocket for the lining material, said body having its top edge curled upon said seal to permanently hold the same against said shoulderl 4. A container comprising, in combination, a body having near its top an inwardly eX- tending bead forming a supporting shoulder, a fran'gible seal adapted to rest upon said shoulder, said body having its top edge curled upon said seal lto permanently hold the same a lining material disposedv between.

against said shoulder, and a lining material disposed between said shoulder and said seal and between said curl and said seal.-

5. A container comprising, in combination, a body having near its top an inwardly extending bead forming a supporting shoulder,

a frangible seal adapted to rest against said shoulder, said bodyhaving its top edge curled upon said seal to permanently hold the same against said shoulder, a part of said body below said bead being formed with interrupted screw threads, and a threaded cover adapted to engage saidthreads, said cover having its lowermost annular edge bent inwardly against said body to make a yielding insectv proof contact. therewith.

6. A container comprising, in combination', a body having near its top an inwardly eX- tending bead forming a supporting shoulder, a frangible seal adapted to rest against said shoulder, said body having its top edge curled Y upon said seal to permanently hold the same against said shoulder, a part ofsaid body below said bead being formed with interrupted screw threads and a threaded cover adapted to engage said threads.

7 A container comprising, in combination, a body having near its top an inwardly ex tending bead forming a supporting shoulder,

va frangiblel seal adapted to rest against said shoulder, and a lining material disposed between said shoulder and said seal, said body having its top edge curled upon said seal to permanently hold the same against said lining material. y

CONVERSE B. CADWALLADER.