Patent US3987691A successfully refreshed from Google Patents.
US3987691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible non-cranking wrench
Assignee: Individual
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Filing: 1975-11-13
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Granted: 1976-10-26
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Expires: 1995-11-13
Abstract
Abstract A wrench suitable for use in extremely close quarters where space for cranking is completely lacking and use of power driver is impossible comprising an elongate housing and a nut or bolt heat receiving wrench socket rotatably secured within the housing at each end thereof. Each of the wrench sockets is provided with gear teeth integral with and extending around the periphery of the sockets. One or more gear members forming a gear train is disposed within the elongate housing and extend along the length of the wrench to provide a driving relationship between the gear teeth of the wrench sockets. One or more additional wrench members is attached to and drivingly interconnected to the first mentioned wrench to penetrate any labyrinth or tortuous path to install or remove a nut or bolt without cranking.
Inventors
- 👤 Bobbie O. Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:15
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/481; B25B17/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
170 words
An extensible non-cranking wrench for use in torque nuts or bolts in extremely close quarters where space for cranking is completely lacking and room for a power driver in unavailable, said wrench comprising an elongate body having rotatable sockets at opposite ends thereof, gear teeth formed on the external periphery of each of said sockets, a gear train including one or more idler pinions in driving engagement with the gear teeth of said sockets, adjustable ratchet means for selectively locking said sockets for rotation in one or the other direction, a plurality of perforations arranged around each of said sockets and means in one of said perforations for locking said wrench to a like wrench at a selected angle to extend into a tortuous or labyrinth path, said sockets being of such size and shape as to include non-circular wall portions to torque nuts and/or bolts, said sockets further being of such shape as to receive and cooperate with coupling means for attachment of sockets, and/or other wrench members thereto.
Claim 2
Dependent Claim
170 words
An extensible non-cranking wrench for use in torque nuts or bolts in extremely close quarters where space for cranking is completely lacking and room for a power driver in unavailable, said wrench comprising an elongate body having rotatable sockets at opposite ends thereof, gear teeth formed on the external periphery of each of said sockets, a gear train including one or more idler pinions in driving engagement with the gear teeth of said sockets, adjustable ratchet means for selectively locking said sockets for rotation in one or the other direction, a plurality of perforations arranged around each of said sockets and means in one of said perforations for locking said wrench to a like wrench at a selected angle to extend into a tortuous or labyrinth path, said sockets being of such size and shape as to include non-circular wall portions to torque nuts and/or bolts, said sockets further being of such shape as to receive and cooperate with coupling means for attachment of sockets, and/or other wrench members thereto.
Claim 3
Dependent Claim
30 words
The wrench as defined in claim 1, wherein at least one of said sockets is pivotally secured to one end thereof for tilting movement to reach a nut or bolt.
Claim 4
Dependent Claim
33 words
The wrench as defined in claim 2, wherein said one of said sockets is secured to said one end of said wrench for tilting movement out of the plane of said elongate body.
Claim 5
Dependent Claim
52 words
The wrench as defined in claim 3, wherein said gear teeth of said one of said sockets is of such axial width as to remain in driving relationship with a pinion of said gear train even when said one of said sockets is tilted out of the plane of said elongate body.
Claim 6
Dependent Claim
32 words
The wrench as defined in claim 2, wherein said one of said sockets is secured to said one end of said wrench for tilting movement within the plane of said elongate body.
Claim 7
Dependent Claim
32 words
The wrench as defined in claim 1, wherein a first portion of a stepped adapter coupler plug is disposed in at least one of said sockets and locked together for rotation therewith.
Claim 8
Dependent Claim
28 words
The wrench as defined in claim 6, wherein radial projections are provided in the radial periphery of said plug for locking engagement with said one of said sockets.
Claim 9
Dependent Claim
30 words
The wrench as defined in claim 7, wherein said radial projections are resiliently biased into engagement with said one of said sockets by means extending radially inwardly of said projections.
Claim 10
Dependent Claim
23 words
The wrench as defined in claim 8, wherein said projections include bevel shoulders at opposite ends thereof to facilitate assembly and disassembly thereof.
Claim 11
Dependent Claim
42 words
The wrench as defined in claim 8, wherein said projections are generally cylindrical and said one of said sockets includes a plurality of radial bores in which said projections are received in assembly to lock said socket for rotation with said plug.
Claim 12
Dependent Claim
45 words
The wrench as defined in claim 8 wherein a second portion of said adapter coupler plug is disposed in a socket of a second wrench similar in construction to said first wrench whereby driving relationship is established between all sockets of said wrenches in assembly.
References Cited (Backward Citations)
US2501217A
Cited
US2830479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |