US4491042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powered wrench
Assignee: Individual
•
Filing: 1983-02-10
•
Granted: 1985-01-01
•
Expires: 2003-02-10
Abstract
Abstract A powered wrench for transferring the power of a hand tool to work located in a relatively inaccessible location. The wrench comprises a thin, elongated housing with a sprocket rotatably journaled in each of its ends and coupled by a continuous apertured belt. The sprockets have axial openings for engagement with a hand tool and a work piece such as a nut or bolt.
Inventors
- 👤 James E. Lopochonsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:13
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/481; B25B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
An improvement in a powered wrench having a thin, elongated body formed of a pair of joined, oppositely disposed, flat members having engaging continuous peripheral flanges, semi-circular configurations in the ends of said elongated body, sprockets rotatably mounted in said configurations and a continuous apertured belt engaged on said sprockets, the improvement comprising means for insuring the registry of said apertured belt on said sprockets while under tension, said means being a continuous apertured belt formed of flexible steel having longitudinally spaced circular openings therein and said sprockets consisting of circular discs, a plurality of circumferentially spaced frustro-conical teeth on each of said circular discs, the circular openings in said continuous flexible steel belt being of a diameter matching the largest diameter of said frustro-conical teeth, said continuous flexible steel belt extending between said end configurations in a passageway formed by said elongated body, axial openings formed in each of said sprockets and annular members on the sides of said sprockets surrounding the axial openings therein so as to journal said sprockets in said end configurations in said elongated body.
Claim 2
Dependent Claim
180 words
An improvement in a powered wrench having a thin, elongated body formed of a pair of joined, oppositely disposed, flat members having engaging continuous peripheral flanges, semi-circular configurations in the ends of said elongated body, sprockets rotatably mounted in said configurations and a continuous apertured belt engaged on said sprockets, the improvement comprising means for insuring the registry of said apertured belt on said sprockets while under tension, said means being a continuous apertured belt formed of flexible steel having longitudinally spaced circular openings therein and said sprockets consisting of circular discs, a plurality of circumferentially spaced frustro-conical teeth on each of said circular discs, the circular openings in said continuous flexible steel belt being of a diameter matching the largest diameter of said frustro-conical teeth, said continuous flexible steel belt extending between said end configurations in a passageway formed by said elongated body, axial openings formed in each of said sprockets and annular members on the sides of said sprockets surrounding the axial openings therein so as to journal said sprockets in said end configurations in said elongated body.
References Cited (Backward Citations)
US1263435A
Cited
US1356555A
Cited
US2466456A
Cited
US2672065A
Cited
US2746331A
Cited
US3138983A
Cited
US3283621A
Cited
US3714852A
Cited
US4098151A
Cited
US4184390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |