Patent US3779107A successfully refreshed from Google Patents.
US3779107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet wrench tool head positioner
Assignee: Individual
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Filing: 1972-10-19
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Granted: 1973-12-18
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Expires: 1992-10-19
Abstract
Abstract The depending stud of a ratchet tool head is pivotally mounted between the fork arms of a tool holder attachable to a wrench handle. A plurality of spaced transverse grooves in the stud is selectively engageable with and disengageable from a transverse lock pin located adjacent the stud depending upon the angular position of the lock pin. The lock pin is removably held in selected position by a ball detent.
Inventors
- 👤 T Avery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:32
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/06; B25G1/063; B25B; B25B13/00; B25B13/46; B25B13/461
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
232 words
A ratchet wrench tool head positioner comprising: a. a ratchet tool head having a depending stud including a pair of parallel side walls and an arcuate lower end, said lower end having formed therein a plurality of transverse grooves; b. a tool head holder including an elongated body having an axial receptacle at one end to receive a handle and being bifurcated at the other end to define a fork with arms straddling said side walls of said stud; c. a pivot pin rotatably mounting said stud between said arms of said fork for relative angular movement between said tool head and said tool head holder; d. a lock pin rotatably mounted on said fork parallel to said pivot pin, the portion of said lock pin adjacent said lower end of said stud having a segment removed to provide clearance between said lock pin and said stud in a first angular position of said lock pin, the unremoved portion of said lock pin protruding into a selected one of said transverse grooves in a second angular position of said lock pin to lock said tool head relative to said tool head holder; and, e. actuating means mounted on said lock pin for rotating said lock pin between said first position and said second position alternately to lock and unlock said tool head and said tool head holder in a predetermined angular relation.
Claim 2
Dependent Claim
232 words
A ratchet wrench tool head positioner comprising: a. a ratchet tool head having a depending stud including a pair of parallel side walls and an arcuate lower end, said lower end having formed therein a plurality of transverse grooves; b. a tool head holder including an elongated body having an axial receptacle at one end to receive a handle and being bifurcated at the other end to define a fork with arms straddling said side walls of said stud; c. a pivot pin rotatably mounting said stud between said arms of said fork for relative angular movement between said tool head and said tool head holder; d. a lock pin rotatably mounted on said fork parallel to said pivot pin, the portion of said lock pin adjacent said lower end of said stud having a segment removed to provide clearance between said lock pin and said stud in a first angular position of said lock pin, the unremoved portion of said lock pin protruding into a selected one of said transverse grooves in a second angular position of said lock pin to lock said tool head relative to said tool head holder; and, e. actuating means mounted on said lock pin for rotating said lock pin between said first position and said second position alternately to lock and unlock said tool head and said tool head holder in a predetermined angular relation.
Claim 3
Dependent Claim
30 words
A tool head positioner as in claim 1 in which said actuating means includes a knob mounted on one end of said lock pin adjacent one of said fork arms.
Claim 4
Dependent Claim
16 words
A tool head positioner as in claim 2 including an actuating lever mounted on said knob.
Claim 5
Dependent Claim
32 words
A tool head positioner as in claim 2 further including ball detent means engageable with said actuating means for selectively holding said lock pin in said first or said second angular position.
Claim 6
Dependent Claim
52 words
A tool head positioner as in claim 1 wherein said transverse grooves in said lower end of said tool head are substantially semi-circular in cross section and the marginal lips of each of said grooves when in engagement with said lock pin lie substantially in plane of a diameter of said pin.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |