US4234988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pail opening device
Assignee: Individual
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Filing: 1979-01-05
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Granted: 1980-11-25
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Expires: 1999-01-05
Abstract
Abstract This invention is a tool for removing plastic lids from pails used in the supply of food stuffs, syrup, paints, and the like. This invention includes a handle with a floating knife blade of such configuration that it is adapted quickly to cut slots around the edge of such a plastic lid and contains, further, a prying means to bend the cut edges in order that the lids may be easily removed.
Inventors
- 👤 Charles Y. Ross
- 👤 Deltha M. Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:21
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
211 words
An apparatus for cutting plastic lids upon pails and prying the same off of the pail comprising in combination: an elongated handle means suitable to be gripped by a human hand and having a pair of recessed portions on its sides; an enlarged end depending from said handle and including therein a slot suitable to accommodate a knife means; an axle mounted through said enlarged portion of said handle and extending transversely through said slot; knife means mounted at one end in a pivotal manner upon said axle; spring means mounted within said slot and connected to said knife means to hold the same in a fixed position in such manner that the knife blade is always urged forward and upward; knife blade means attached to said knife means mounted in said slot comprising a hook-like sharpened blade; pivot leverage means depending from said enlarged portion of said handle means suitable to rest against the top of a plastic lid in place upon a pail; lip means connected to said pivot leverage point in such manner as to provide a prying member depending forwardly from said handle means; and means adjacent the end of said handle means opposite from said pivot leverage point for hanging said device when not in use.
Claim 2
Independent Claim
211 words
An apparatus for cutting plastic lids upon pails and prying the same off of the pail comprising in combination: an elongated handle means suitable to be gripped by a human hand and having a pair of recessed portions on its sides; an enlarged end depending from said handle and including therein a slot suitable to accommodate a knife means; an axle mounted through said enlarged portion of said handle and extending transversely through said slot; knife means mounted at one end in a pivotal manner upon said axle; spring means mounted within said slot and connected to said knife means to hold the same in a fixed position in such manner that the knife blade is always urged forward and upward; knife blade means attached to said knife means mounted in said slot comprising a hook-like sharpened blade; pivot leverage means depending from said enlarged portion of said handle means suitable to rest against the top of a plastic lid in place upon a pail; lip means connected to said pivot leverage point in such manner as to provide a prying member depending forwardly from said handle means; and means adjacent the end of said handle means opposite from said pivot leverage point for hanging said device when not in use.
Claim 3
Dependent Claim
120 words
A tool for removing lids from pails comprising in combination handle means having a slot therein suitable to be gripped by a human hand; an enlarged portion upon said handle means; a leverage point adjacent the end of said enlarged portion of said handle means; a knife blade terminating in a hook-like member suitable to slip under the edge of a pail lid pivotally mounted upon said enlarged portion within said slot with its cutting edge depending outwardly therefrom adjacent said leverage point; means holding said knife blade in a predetermined cooperative relationship with said leverage point and cooperative therewith to provide a cooperative pivotal cutting device; and a prying apparatus connected to said enlarged portion of said handle means.
Claim 4
Dependent Claim
120 words
A tool for removing lids from pails comprising in combination handle means having a slot therein suitable to be gripped by a human hand; an enlarged portion upon said handle means; a leverage point adjacent the end of said enlarged portion of said handle means; a knife blade terminating in a hook-like member suitable to slip under the edge of a pail lid pivotally mounted upon said enlarged portion within said slot with its cutting edge depending outwardly therefrom adjacent said leverage point; means holding said knife blade in a predetermined cooperative relationship with said leverage point and cooperative therewith to provide a cooperative pivotal cutting device; and a prying apparatus connected to said enlarged portion of said handle means.
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) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |