US3655091A - Full-open end closure provided with distortion resistant shoulder in countersink wall - Google Patents
Full-open end closure provided with distortion resistant shoulder in countersink wall Download PDFInfo
- Publication number
- US3655091A US3655091A US73930A US3655091DA US3655091A US 3655091 A US3655091 A US 3655091A US 73930 A US73930 A US 73930A US 3655091D A US3655091D A US 3655091DA US 3655091 A US3655091 A US 3655091A
- Authority
- US
- United States
- Prior art keywords
- countersink wall
- wall
- panel
- end closure
- countersink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
- B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
Definitions
- the countersink wall is provided with an inwardly stepped shoulder along the major portion of its circumferential distance about the panel, but along the minor portion of the countersink wall, [58] i 250/54 48 27 diametrically remote from the tab, no inwardly stepped o shoulder is provided, resulting in a construction in the end closure which resists upward distortion, during opening of the [56] Reerences Cited closure, of the lower portions of the countersink wall along the UNITED STATES PATENTS mm)! P' Zundeh ..220/54 5 Claims, 7 Drawing Figures PATENTEDMR 11 m2 3, 655,091
- the removable section is defined by an endless score line disposed about the periphery of the top end panel, and the opening tab is secured to the removable section by a rivet at a point which is close to the score line so that the user can pull upwardly on one end of the opening tab to cause its other end to move downwardly and exert a downward force at or near the outer edge of the end panel to initiate the rupture of the score line. Thereafter, continued upward and backward pulling on the opening tab causes further tearing of the metal in the score line on both sides of the area of initial rupture and effects the eventual, complete detachment of the removable section from the can. See, particularly, my U.S. Pat. No. 3,409,166.
- the construction of the end closure has included an annular, countersink wall extending upwardly from the top end panel to an outwardly extending flange.
- the countersink wall has included an annular shoulder, spaced above the tab and adapted to prevent the tab from interfering with the chuck used to seam the end closure on to the top of the can.
- this invention relates to an end closure which includes:
- FIG. 1 is a plan view of a full-open, end closure for a can made in accordance with the present invention.
- FIG. 2 is an enlarged, sectional view taken along line 22 in FIG. 1.
- FIG. 3 is an enlarged, sectional view taken along line 3-3 in FIG. 1.
- FIG. 4 is an enlarged, sectional view, similar to FIG. 3 showing the countersink wall after detaching the removable section of the end closure from the can.
- FIG. 5 is an enlarged, sectional view, similar to FIGS. 3 and 4 showing the upward distortion of the lower countersink wall in the prior art at a location on the countersink wall diametrically remote from the opening tab.
- FIG. 6 is an enlarged, plan view of a full-open, end closure for a can made in accordance with a modified embodiment of the present invention.
- FIG. 7 is an enlarged, sectional view taken along line 77 of FIG. 6.
- FIGS. 1 and 2 show a full-open, end closure, generally 10.
- the end closure 10 includes: a central, removable panel 12; a score line 14 adjacent to the periphery of the panel 12; an opening tab 16 secured to the panel 12 adjacent to the score line 14; an annular countersink wall, generally 18, extending upwardly from the periphery of the panel 12; and an annular flange 20, extending outwardly from the top of the countersink wall 18.
- the end closure 10 also includes a plurality of beads 22 in the panel 12 for preventing the upward bowing of the panel 12 and the consequent distortion of the countersink wall 18 during the opening of the end closure, as
- the end closure further includes, as shown in my pending U.S. application, Ser. No. 728,518, filed May 13, 1968: a rivet 24 for securing the tab 16 to the panel 12; and a combination of an ancillary score 26 and a pair of flex inducing scores 28 in the panel 12 for promoting the tearing of the score 14 and the venting of the can (not shown).
- the end closure 10 of FIG. 1 may be seamed on to the wall 30 of a can by forming the outwardly extending flange 20 of the end closure 10 into a conventional double-seam with an outwardly extending flange 32 of the can wall 30.
- the countersink wall 18 of the end closure 10 is provided with an inwardly stepped shoulder 34 which extends along the countersink wall 18 for a major portion A, about 338, of the walls circumferential distance about the panel 12.
- the shoulder is not provided.
- this major distance A along the countersink wall 18, along which distance the shoulder 34 extends will be referred to as the first circumferential distance A and the minor distance B along the countersink wall 18, along which distance the shoulder 34 does not extend will be referred to as the second circumferential distance B.
- the angular relationship between the first and second circumferential distances is considered very important to the instant invention.
- the shoulder 34 divides the countersink wall 18 into an upper countersink wall 36 and a lower countersink wall, generally 37.
- the first cir cumferential distance A along the countersink wall 18 is shown wherein the upper countersink wall 36 is located adjacent to the can wall 30 and the lower countersink wall 37 is somewhat spaced inwardly from the can wall 30.
- the portion of the lower countersink wall 37 which extends for the first circumferential distance A will be called the first lower countersink wall 38.
- the second circumferential distance B along the countersink wall 18 is shown wherein both the upper and lower countersink walls 36, 37 are located adjacent to the can wall 30, except for an inwardly extending residual portion 39 of the lower countersink wall 37.
- the portion of the lower countersink wall 37 which extends for the second circumferential distance B will be called the second lower countersink wall 40.
- residual portion 39 of the lower countersink wall 37 extends for the full circumferential distance 360 along the countersink wall 18 and connects the countersink wall 18 to the periphery of the panel 12 along the score line 14.
- residual portion 39 represents the practical minimum amount of metal which is needed to provide the score 14 adjacent to the countersink wall.
- the panel 12 has been removed from the end closure of the instant invention.
- the inwardly extending residual portion 39 of the countersink wall 18 has an exposed, rough edge 42 formed from the torn residual metal of the score line 14.
- the residual portion 39 of the countersink wall 18 is not projecting upwardly, where the rough edge 42 would be liable to cut the hand of the consumer of the cans contents. Rather, the residual portion 39 is projecting substantially horizontally whereby the rough edge 42 is not a threat to a consumers hand.
- FIG. 6 shows a portion of a full-open end 210 provided with a modified, second lower countersink wall 240.
- modified end closure 210 is provided with all the aforementioned elements of the original end closure except as may be hereinafter specifically noted (analogous elements of the alternative embodiment having their reference numerals greater by 200 than the reference numerals of the preferred embodiment 10 of the instant invention).
- the modified, second lower countersink wall 240 consists of a plurality of undulations or corrugations, the outwardly extending peaks 241 of which are located substantially adjacent to the can wall 230.
- the upper countersink wall 236 is vertically colinear with the peaks 241 of the second lower countersink wall 240.
- transitional portions generally 44 and 244 have been provided between the portions of the lower countersink walls 37, 237 of the embodiments of the invention.
- the extent of these transitional elements 44, 244 is relatively minor, however, in comparison with the first and second circumferential distances A, B, and for this reason, these portions 44, 244 need not be considered separately but may rather be considered as parts of either the first or second lower countersink walls 38, 40 and 238, 240.
- the centers of the second lower countersink walls 40, 240 are located substantially diametrically remote from the location of the nose of the tab 16 on the score line 14. It is in this location where the second lower countersink walls 40, 240 serve as means for restraining upward, bending distortion of the lower countersink walls 37, 237 relative to the upper countersink wall 36, 236. Also, by this placement, the shoulders 34, 234 provide support for a seaming chuck along the major portion A of the circumferential distance along the countersink walls 18, 218 without interference of the chuck with the opening tab 16.
- an end closure for a can which includes a central, removable panel, a score line adjacent to the periphery of the panel, an opening tab secured to the panel adjacent to the score line, and an annular, countersink wall extending upwardly from the periphery of the panel, the improvement which comprises:
- An inwardly stepped shoulder in the countersink wall which extends for a major, first circumferential distance along the countersink wall and which divides the countersink wall into a lower countersink wall and an upper countersink wall;
- said restraining means being positioned substantially diametrically remote from the location of the tab adjacent the score line and the combination of said first circumferential distance of said shoulder and said second circumferential distance of said restraining means about the countersink wall circumscribing substantially 360 about the panel.
- the means comprises an undulating portion of the lower countersink wall, the peaks of the undulating portions being vertically linear and substantially vertically colinear with the upper countersink wall.
Abstract
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7393070A | 1970-09-21 | 1970-09-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3655091A true US3655091A (en) | 1972-04-11 |
Family
ID=22116658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US73930A Expired - Lifetime US3655091A (en) | 1970-09-21 | 1970-09-21 | Full-open end closure provided with distortion resistant shoulder in countersink wall |
Country Status (3)
Country | Link |
---|---|
US (1) | US3655091A (en) |
JP (1) | JPS5236074B1 (en) |
CA (1) | CA935103A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2521955A1 (en) * | 1982-02-24 | 1983-08-26 | Dorn Cy Van | BASE OF STEEL BOX WITH COMPLETE OPENING |
US5713481A (en) * | 1996-05-06 | 1998-02-03 | Aluminum Company Of America | Full panel pull out can end with vent means |
US20080067174A1 (en) * | 2006-09-19 | 2008-03-20 | Crown Packaging Technology Inc. | Easy open can end with high pressure venting |
US20080067171A1 (en) * | 2006-09-19 | 2008-03-20 | Heinicke Paul R | Easy open can end with high pressure venting |
US20080314906A1 (en) * | 2007-06-22 | 2008-12-25 | Butcher Gregory H | Can end and method of making same |
US10968009B2 (en) | 2016-12-01 | 2021-04-06 | João Marques Fernandes | Constructive arrangement for the opening of a beverage can |
US11434046B2 (en) | 2016-11-25 | 2022-09-06 | João Marques Fernandes | Constructive arrangement for the opening of a beverage can |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478918A (en) * | 1968-08-14 | 1969-11-18 | American Can Co | Full open end closure |
US3490643A (en) * | 1968-01-22 | 1970-01-20 | Dorn Co V | Full opening container end |
-
1970
- 1970-09-21 US US73930A patent/US3655091A/en not_active Expired - Lifetime
-
1971
- 1971-05-21 CA CA113666A patent/CA935103A/en not_active Expired
- 1971-08-06 JP JP46059078A patent/JPS5236074B1/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3490643A (en) * | 1968-01-22 | 1970-01-20 | Dorn Co V | Full opening container end |
US3478918A (en) * | 1968-08-14 | 1969-11-18 | American Can Co | Full open end closure |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2521955A1 (en) * | 1982-02-24 | 1983-08-26 | Dorn Cy Van | BASE OF STEEL BOX WITH COMPLETE OPENING |
US5713481A (en) * | 1996-05-06 | 1998-02-03 | Aluminum Company Of America | Full panel pull out can end with vent means |
US20080067174A1 (en) * | 2006-09-19 | 2008-03-20 | Crown Packaging Technology Inc. | Easy open can end with high pressure venting |
US20080067171A1 (en) * | 2006-09-19 | 2008-03-20 | Heinicke Paul R | Easy open can end with high pressure venting |
US7721906B2 (en) * | 2006-09-19 | 2010-05-25 | Crown Packaging Technology, Inc. | Easy open can end with high pressure venting |
US7922025B2 (en) * | 2006-09-19 | 2011-04-12 | Crown Packaging Company, L.P. | Easy open can end with high pressure venting |
US20080314906A1 (en) * | 2007-06-22 | 2008-12-25 | Butcher Gregory H | Can end and method of making same |
US8109405B2 (en) * | 2007-06-22 | 2012-02-07 | Stolle Machinery Company, Llc | Can end and rivet base scoreline therefor |
US11434046B2 (en) | 2016-11-25 | 2022-09-06 | João Marques Fernandes | Constructive arrangement for the opening of a beverage can |
US10968009B2 (en) | 2016-12-01 | 2021-04-06 | João Marques Fernandes | Constructive arrangement for the opening of a beverage can |
Also Published As
Publication number | Publication date |
---|---|
JPS5236074B1 (en) | 1977-09-13 |
CA935103A (en) | 1973-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AMERICAN NATIONAL CAN COMPANY, STATELESS Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354 Effective date: 19870430 Owner name: AMERICAN NATIONAL CAN COMPANY Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354 Effective date: 19870430 Owner name: AMERICAN CAN PACKAGING INC., CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338 Effective date: 19861107 Owner name: AMERICAN CAN PACKAGING INC., AMERICAN LANE, GREENW Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338 Effective date: 19861107 |