Patent US4390112A successfully refreshed from Google Patents.
US4390112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening container and opener tool therefor
Assignee: Continental Group Inc
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Filing: 1981-10-23
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Granted: 1983-06-28
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Expires: 2001-10-23
Abstract
Abstract An easy opening can and key combination, wherein the can has a circumferential score encircling the can body beneath the double seam attaching the body to the end member, the key comprising a handle having a jaw at one end with inner and outer jaw elements embracing the seam, the outer element extending below the seam and having an end alignable with the score in a position such that when the handle is pressed downwardly it swings about the seam and the outer jaw member ruptures the score whereupon the tool is swung laterally and slightly upwardly separating the upper portion of the can from the body.
Inventors
- 👤 Oliver J. Tysver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:53
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
The combination of a can having a body and an end member seamed together in a chime, a weakening score encircling said body immediately below the chime, a tool for fracturing said score and removing said end member and a portion of said body between said score and chime to open said can, said tool having a jaw with inner and outer portions embracing said chime and operative attendant to movement of said tool in one direction to fracture said score, said tool having means engageable under said chime to permit lifting of the tool to fracture the entire score and separate the can portion above the score from said body.
Claim 2
Dependent Claim
111 words
The combination of a can having a body and an end member seamed together in a chime, a weakening score encircling said body immediately below the chime, a tool for fracturing said score and removing said end member and a portion of said body between said score and chime to open said can, said tool having a jaw with inner and outer portions embracing said chime and operative attendant to movement of said tool in one direction to fracture said score, said tool having means engageable under said chime to permit lifting of the tool to fracture the entire score and separate the can portion above the score from said body.
Claim 3
Dependent Claim
60 words
The invention according to claim 1 and said end member having an axially extending chuck wall and said inner jaw portion having an edge extending therealong and said outer jaw portion being curved over the top and outside of the chime and extending thereunder and having an end in position to pierce said score upon predetermined movement of the tool.
Claim 4
Dependent Claim
25 words
The invention according to claim 2 and said outer jaw portion having a laterally extending end portion engageable with the side wall of the can.
Claim 5
Dependent Claim
22 words
The invention according to claim 1 and said inner and outer jaw portions formed or arranged to complimentally fit about said chime.
Claim 6
Dependent Claim
35 words
The invention according to claim 1 and said tool comprising a body having laterally spaced edges and said jaw portions extending generally in the same direction from respective edges and defining a chime-admitting notch therebetween.
Claim 7
Dependent Claim
74 words
A tool for opening a metal can having a body with a circumferential score and a seam thereadjacent connecting an end member to a body, said tool having a handle and a pair of jaw members defining a seam-admitting notch at one end of said handle and sloping downwardly therefrom, said jaw members underlying said notch in projecting relation and having a portion for fracturing the score attendant to prescribed manipulation of the tool.
Claim 8
Dependent Claim
74 words
A tool for opening a metal can having a body with a circumferential score and a seam thereadjacent connecting an end member to a body, said tool having a handle and a pair of jaw members defining a seam-admitting notch at one end of said handle and sloping downwardly therefrom, said jaw members underlying said notch in projecting relation and having a portion for fracturing the score attendant to prescribed manipulation of the tool.
Claim 9
Dependent Claim
52 words
A tool according to claim 6 wherein said handle is in the form of an elongated bar, the other of the jaw members being approximately normal to the length of said bar, and said notch adjacent said other jaw member being of a depth less than the height of the intended seam.
Claim 10
Dependent Claim
58 words
A tool according to claim 6 wherein said other jaw member lies in the plane of said handle and said one jaw member is disposed out of and at an angle to the plane of said handle wherein said jaw members are laterally offset with respect to each other for engagement with circumferentially spaced portions of a can.
Claim 11
Dependent Claim
21 words
A tool according to claim 8 wherein said one tool has a pressure concentrating point for engagement with a can score.
Claim 12
Dependent Claim
58 words
A tool according to claim 7 wherein said other jaw member lies in the plane of said handle and said one jaw member is disposed out of and at an angle to the plane of said handle wherein said jaw members are laterally offset with respect to each other for engagement with circumferentially spaced portions of a can.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-27 | 1986-12-27 | 1987-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-27 | 1990-12-27 | 1991-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-27 | 1994-12-27 | 1995-06-28 | $7700.00 | Window Closed / Lapsed |