Patent US3600982A successfully refreshed from Google Patents.
US3600982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jar cover remover
Assignee: Individual
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Filing: 1969-11-12
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Granted: 1971-08-24
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Expires: 1989-11-12
Abstract
Abstract A screw cover remover having a handle at one end thereof with a cavity at the opposite end thereof adapted to encompass the cover of the jar to be removed and containing therein gripping means to frictionally retain the screw cover remover fixed relative to the jar cover to remove the latter. The gripping means in accordance with one aspect of the invention includes spaced apart members having a threaded face extending in a substantially horizontal plane to bind up against the side or corner of the cover. In another form the members contain teeth extending substantially vertical for engagement with the jar cover.
Inventors
- 👤 John G Tholen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:53
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
A jar cover remover comprising: a body portion having a substantially conical cavity at one end thereof adapted to receive therein the jar cover to be removed, b. handle means at the opposite end of said body portion adapted to be gripped for rotation of said body portion, and c. gripping means contained in said cavity for frictionally engaging said jar cover, said grIpping means including a plurality of spaced apart gripping members inwardly extending therein and having a threaded section adapted to grip and engage the cover when the body portion is rotated relative thereto, wherein a minimal axial force is required to be applied to said jar cover remover as the latter is rotated, said gripping members are circular having an externally threaded section contained within said cavity for engaging said cover.
Claim 2
Dependent Claim
134 words
A jar cover remover comprising: a body portion having a substantially conical cavity at one end thereof adapted to receive therein the jar cover to be removed, b. handle means at the opposite end of said body portion adapted to be gripped for rotation of said body portion, and c. gripping means contained in said cavity for frictionally engaging said jar cover, said grIpping means including a plurality of spaced apart gripping members inwardly extending therein and having a threaded section adapted to grip and engage the cover when the body portion is rotated relative thereto, wherein a minimal axial force is required to be applied to said jar cover remover as the latter is rotated, said gripping members are circular having an externally threaded section contained within said cavity for engaging said cover.
Claim 3
Dependent Claim
18 words
A jar cover remover as defined in claim 1, wherein said threads are right-handed and sharp V threads.
Claim 4
Dependent Claim
27 words
A jar cover remover as defined in claim 1, wherein said circular gripping members extend outwardly from the wall of said cavity substantially one-half the diameter thereof.
Claim 5
Dependent Claim
39 words
A jar cover remover as defined in claim 2, wherein said handle is of a size to be gripped in the hind of the user and includes a plurality of indentations on the circumference thereof to facilitate gripping thereof.
Claim 6
Dependent Claim
37 words
A jar cover remover as defined in claim 4, wherein said body portion has a tapered outer surface extending inwardly from the open end of said cavity and joined to said handle means by a neck portion.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |