US1808321A

US1808321A - Sealed can

Info

Publication number: US1808321A
Application number: US368247A
Authority: US
Inventors: Sebell Harry
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-06-04
Filing date: 1929-06-04
Publication date: 1931-06-02
Anticipated expiration: 1948-06-02

Description

June 2, 1931. SEBELL 1,808,321

SEALED CAN Filed June 4. 1929 2 Sheets-Sheet l 13-" -|nv enTor.

Harry Se heal I MMIIM June 2, 1931. 'SEBELL 1,808,321

' SEALED CAN Filed June 4. 1929 2 Sheets-Sheet 2 lnvenTor.

Hurry Sebell .bymgm tkw Patented June 2, 1931 v UNITED STATES PATENT" OF'Fl iCE HARRY snBELL, or BOSTON, MassAoirU's'nTrs, ASSIGNOR T ARTHUR. Pawn, or

LEXINGTON, mnssaonusmms SEALED only Application fil d, J 29. Serial No. 368,247.

This invention relates to cans such as are used for packaging paint food and other materials and particularly to cans which are provided with a removablecover.

One object of the invention is to provide a novel construction by which the, removal of the cover may be facilitated when the can is to be opened;

In the can embodying my invention the can body has an outwardly-extending flange which mates another outwardly-extending flange formed onthe can cover.

One of said flanges is a multi-ply flange with portions thereof having a reduced numher. of plies on the face thereof adjacent the other flange whereby pockets are formed be? tween the flanges into which an implement may be inserted to. pry the flanges apart.

1n order to give 'an'understanding of the invention I have illustrated in the drawings some selected, Embodiments thereof which will now be described after which the novel features will be pointed out in the appended claims.

Fig. 1 is a side view of a can embodying my invention;

'Fig. 2 is an enlarged sectiOI al view onthe line 22, Fig. 1; a

Fig. 3 is an enlarged sectional line 33, Fig. 1;

Fig.4: is a fragmentary plan view of a por-v tion of the cover showing a step in the process of making it;

Fig. 5 is a similar view showing the cover completed;

Fig. 6 is a sectionon the line 6..6,-Fig. 4; said figure showing in dotted lines how the thickened portion of the flange is formed;

Fig. 7 is a perspective view illustrating a can cover having a slightly difi'erent construction from that shown in Figs. 1 to 5 and in one formative stage;

Fig. 8 is a section on the line 8-8, Fig. 7;

Fig. 9 is a section on the line 9-9, Fig. 7 but showing one of the fingers or extensions of the cover rolled up;

Fig. 10 is a fragmentary sectional view through a closed can having the cover contruction shown in Figs, 7, 8 and 9;

View on the Fig..11 is a view illustrating the manner in i which the cover may be'pried loose;

Fig. 12 is a fragmentary sectional view through one side of the can body.

In the drawings 1 indicates a can body and 2 indicates a removable cover'by which the, can body is closed or sealed. The eanbod-y and. can cover are each provided with out? wardly-extending flanges which flanges mate each other when the cover is in closing relation. 1f the can is to be sealed the sealing may be accomplished in any manner common: 1y employ d f r making a tight join betwe n the cover and the can body.

T fl g n the can body i 'ind oa ed at 3 d in. the par i ular embodim nt h rei-i s own said flange projects outwardly from t e an bodyand i o d at a di a e be low the upper edge t'ofthe body so that they mbody-has an upstan ing por i n eeted above the flange c a J I he pres n mbodim nt f theinven: tion the cover 2 is shown as having adepend,

ing. skirt portion 6 which'embraces the upper p i n 5 f the can body nd aid can ver a he on w dly=ex ending flange .7 located at. thelowerend of the skirt 6,, which; flange: 7 mates: the flange, 3.v Y

As stated above one of. the

fe tures of the present invention relatesto a'novel construe.

tion y which the mati g fl nge fi and; .7' formed with pockets. adapted to receive a screwdriver or other similar implement foe the pu p se o prying t e flang s when the can is. to'be openech 1 v 7 These pock s re-fo ed by mak goertain. porti ns o o e. of the anges thicke t n o he p r ions. h reof so-t e hen t e fla ges e in sea i g la pockets will b f rm d a he thinner por ons of the fla g T ho e t icken nd th nh h-p rti ne may be formed on either" flang without departing f om t nvention hut. l-v illpref orably f -rin them oh'th flange o the o er- The dra ingsvshow t o-Ways in whi h th s y e d ne. In the, oen trnetion shownrin' Eigelflt 6 nc u i the co er .2 made init ally- 1th tw =Ply ontwardly en jend ng flange 7- at th l wer: edge th ssk rt portion .6 as llustr ted in li gi'athisitwoplyi so i made will present two-ply portions 11 of the full widthand other four-ply portions 12 of less width than the portions 11 but of extra thickness due to the folding over of the portions of the flange. The completed cover thus has an outwardly-extending flange which is providedwith portions 11. which are thinner than the portions 12 and the extra thickness of the portions 12 is located on the underside of the flange. When the cover thus made'is applied to the can the thicker portions 12 will rest on the flange 3 ofthe can body While the "thinner portions 11 of the flange 7 will be spaced from the flange 3 of the can body thereby providing pockets 13. 4 When the can is to be opened a screw driver or other implement it may be inserted into one of the pockets 13 and then manipulated topry the flanges apart. If the can is hermetically sealed, as is done in the case of cans which contain canned food there will exist a considerable vacuum in the can which it is necessary to break in order to remove the can cover. By providing the pockets 13 adapted to'receive a screwdriver or other implement the operation of loosening the cover and breaking the vacuum is greatly facilitated and can be easily accomplished by anyone. InFigs. 7 to 12 I have shown a different embodiment: of the invention. In this embodiment the flange of the can cover has a uniform widthall theiway around but is nevertheless provided with thickerand thinner portions. A can cover having this construction may be made from a blank such as shown in Fig. 7 which illustrates a sheet of material which has been struck up into the form of the cover with the depending skirt portion '6 and with "the flange 15 extending laterally therefrom; said flange being formed initially with'a plurality of fingers or extensions 16. These fingers or extensions are rolled or folded up underneath the flange 15 as shown at 17 in Fig. 9 and after this rolling or curling process therolled portion 17 is preferably flattened as; shown in Fig. 10. The cover thus made will have a flange 15 of uniform width but with thicker multi-ply portions 17 which are formed from the rolled up or folded fingers 16 and thinner portions having a reduced number of plies between the thickened portions 17. In the places or portions where they are fewer,the reduction in the number of plies is on the face of the flange which is directed toward the other flange so that pockets will be formed between the flanges where the plies are omitted.

When a cover having this construction is placed on the can the thickened portions 17 of the cover will rest on the flange 3 of the can body and pockets 13 will existbetween the flange 3 on the can body and the thin portion of the flange 15 on the can cover. In this construction the flange 15 is of uniform width. 5 y

In order to facilitate the removal of the cover after it has been loosened I will preferably provide said cover with a peripheral bead adjacentits top. This bead may be formed either by deforming orupsetting the metal of the cover as shown at 18 in Fig. 9 ormay' be formed by placing a wire 19 around the cover and soldering it thereto. In either case the cover is provided with an annularbead which forms a finger hold to enable a person to firmly grasp the cover and pull 'it off from the upstanding portion 5 of the can body. I

'Whi1e I have'illustrated herein some selected embodiments of my invention I do not wish to belimited' to the constructional features shown as there'are other ways in which the invention might be'embodied.

I claim;

p 1. A can comprising a can body having an outwardly-directed flange, a can cover having a mating flange, oneof said flanges being a multi-ply flange and having at certain portions thereof fewer portions than at other portions, the reduction in the number of pliesbeing on thefaice'of said flange adjacent the other flange whereby pockets are formed between the flanges for'the reception of an implement to be used to pry the flanges I apart. I

H 2. can presenting a can body having an outwardly-directed"flange, a can cover having a multi-ply flange mating that of the can body, the flange of the can cover having portions which have a reduced number of plies with the remaining plies atsuch portions spaced from' the flange on thecan body, whereby pockets are formed between-the flanges into'which an implement may be inserted to pry said flanges apart when the can is to beopened. 'T x In testimony whereof, I have signed my name to thisspecification. HARRY SEBELL.