US4463631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipurpose opener
Assignee: CUMSTOM TOOL Inc
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Filing: 1982-11-04
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Granted: 1984-08-07
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Expires: 2002-11-04
Abstract
Abstract A multipurpose can opener is provided for opening bottles having caps, cans having pull-off tabs, and cans having stay-on tabs. Only one end of the opener is utilized for opening bottles and cans, the opposite end being used solely as a handle or lever. The operating end of the multipurpose opener has three hooks extending downwardly therefrom at predetermined points and a pair of projections extending downwardly therefrom along its side edges. A first hook and the projections are utilized in removing pull-off tabs wherein the hook engages the ring of the tab and the projections abut against the can shell to act as a fulcrum during the removal of the tab. A second hook is utilized for opening stay-on tabs and it is engaged with the tab and in conjunction with the distal end of the operating end separates the scored section of the can shell when the user lifts upwardly on the handle. For removing caps from bottles, a third hook is disposed below the edge of the cap, and the second hook is positioned on the top of the cap to act as a fulcrum during the removal of the cap by the third hook upon upward movement of handle.
Inventors
- 👤 James E. Barnes
- 👤 James G. Morkoetter
- 👤 Norman M. Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:53
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/16; B67B7/40; B67B7/403; B67B7/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
340 words
A multipurpose opener for cans having pull-off tabs or stay-on tabs on the shells thereof and bottles having caps, comprising: a flat elongate body having upper and lower surfaces, opposite side edges, and opposing end portions, one of said end portions having on its lower surface a first hook member extending downwardly therefrom, a remote end portion of said first hook member being substantially parallel to said one end portion and pointing in the general direction of the opposite end portion, said remote end portion being adapted to be inserted through the ring member of a pull-off tab of a can and between the ring member and the can shell to thereby hook the ring member by said first hook member, said one end portion having disposed between said first hook member and the distal end of said one end portion at least one projection extending downwardly from said lower surface, said projection being a predetermined distance from said first hook member and adapted to abut against the inner surface of the can shell when the ring member is hooked by said first hook member, whereby, upon lifting upwardly on said opposite end portion, said projection acts as a fulcrum during the removal of the pull-off tab by said first hook member, said opposite end portion being elongated and serving as a handle, a second hook member on said lower surface of said one end portion at a predetermined distance from the distal end of said one end portion and extending downwardly therefrom, a remote end portion of said second hook member being substantially parallel to said one end portion and pointing in the general direction of said distal end, said second hook member remote end portion being adapted to engage the stay-on tab of a can and said distal end being adapted to abut against the top surface of the stay-on tab, whereby, upon lifting upwardly on said opposite end portion, said distal end acts as a fulcrum during the opening of the can by said second hook member.
Claim 2
Dependent Claim
340 words
A multipurpose opener for cans having pull-off tabs or stay-on tabs on the shells thereof and bottles having caps, comprising: a flat elongate body having upper and lower surfaces, opposite side edges, and opposing end portions, one of said end portions having on its lower surface a first hook member extending downwardly therefrom, a remote end portion of said first hook member being substantially parallel to said one end portion and pointing in the general direction of the opposite end portion, said remote end portion being adapted to be inserted through the ring member of a pull-off tab of a can and between the ring member and the can shell to thereby hook the ring member by said first hook member, said one end portion having disposed between said first hook member and the distal end of said one end portion at least one projection extending downwardly from said lower surface, said projection being a predetermined distance from said first hook member and adapted to abut against the inner surface of the can shell when the ring member is hooked by said first hook member, whereby, upon lifting upwardly on said opposite end portion, said projection acts as a fulcrum during the removal of the pull-off tab by said first hook member, said opposite end portion being elongated and serving as a handle, a second hook member on said lower surface of said one end portion at a predetermined distance from the distal end of said one end portion and extending downwardly therefrom, a remote end portion of said second hook member being substantially parallel to said one end portion and pointing in the general direction of said distal end, said second hook member remote end portion being adapted to engage the stay-on tab of a can and said distal end being adapted to abut against the top surface of the stay-on tab, whereby, upon lifting upwardly on said opposite end portion, said distal end acts as a fulcrum during the opening of the can by said second hook member.
Claim 3
Dependent Claim
20 words
The opener of claim 1 wherein said elongate body is bent at an obtuse angle to provide said end portions.
Claim 4
Dependent Claim
28 words
The opener of claim 2 wherein said remote end portion of said first hook member is chamfered on its top surface to facilitate its insertion between opposing surfaces.
Claim 5
Dependent Claim
28 words
The opener of claim 3 wherein said remote end portion of said second hook member is chamfered on its top surface to facilitate its insertion between opposing surfaces.
Claim 6
Dependent Claim
120 words
The opener of claim 3 further including a third hook member on said lower surface of said one end portion at a predetermined distance from said second hook member and extending downwardly therefrom, a remote end portion of said third hook member being substantially parallel to said one end portion and pointing in the general direction of said distal end, said third hook member being adapted to engage the peripheral edge of a bottle cap, and said second hook member adapted to abut against the top surface of the bottle cap, whereby, upon lifting upwardly on said handle end portion, said second hook member acts as a fulcrum during the removal of the bottle cap by said third hook member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |