Patent US4277989A successfully refreshed from Google Patents.
US4277989A
Expired / Lapsed
US
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Ratchet wrench handle
Assignee: Individual
•
Filing: 1979-05-01
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Granted: 1981-07-14
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Expires: 1999-05-01
Abstract
Abstract A reversible ratchet wrench handle in which the actuator for the direction reversing mechanism is located close to the portion of the handle that is grasped by the user. This permits the user to operate the actuator with the thumb of the hand holding the handle whereby changing the direction of operation of the wrench is a one handed rather than a two handed operation. Locating the actuator near the hand grip portion of the handle also removes it from the head of the handle, the usual location, and this allows the head to be made thinner for better access to narrow places. The actuator for the direction reversing mechanism is a switch button that is movable back and forth axially of the wrench handle and this kind of movement insures more positive action.
Inventors
- 👤 Kurt L. Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:51
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/463
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
131 words
A reversible ratchet wrench handle comprising a head portion, a hand grip portion spaced from the head portion, a shank portion rigidly connecting the head and hand grip portions together, a ratchet member in the head portion, a double toothed pawl pivotally mounted in the head portion adjacent the ratchet member, a longitudinally movable switch button on the handle adjacent the hand grip portion, and a longitudinally movable rod element positioned in the shank portion and connecting the switch button to the pawl whereby longitudinal movement of the switch button in one direction operates to move one of the pawl teeth into engagement with the ratchet member and longitudinal movement of the switch button in the opposite direction operates to move the other pawl tooth into engagement with the ratchet member.
Claim 2
Dependent Claim
131 words
A reversible ratchet wrench handle comprising a head portion, a hand grip portion spaced from the head portion, a shank portion rigidly connecting the head and hand grip portions together, a ratchet member in the head portion, a double toothed pawl pivotally mounted in the head portion adjacent the ratchet member, a longitudinally movable switch button on the handle adjacent the hand grip portion, and a longitudinally movable rod element positioned in the shank portion and connecting the switch button to the pawl whereby longitudinal movement of the switch button in one direction operates to move one of the pawl teeth into engagement with the ratchet member and longitudinal movement of the switch button in the opposite direction operates to move the other pawl tooth into engagement with the ratchet member.
Claim 3
Dependent Claim
40 words
A wrench handle as defined in claim 1 wherein the switch button is located on the handle so that it is easily accessible to the thumb or a finger of the user's hand that is gripping the hand grip portion.
Claim 4
Dependent Claim
41 words
A wrench handle as defined in claim 1 wherein the ratchet member is a wheel and the line joining the center said wheel with the pivot point of the pawl is angularly offset from the longitudinal axis of the wrench handle.
Claim 5
Dependent Claim
163 words
A reversible ratchet wrench handle comprising a head portion, a hand grip portion spaced from the head portion and a shank portion rigidly connecting the head and hand grip portions, the longitudinal axes of the head, hand grip and shank portions being colinear; the head portion including a rotatable ratchet wheel and a double toothed, pivotally mounted pawl located adjacent the ratchet wheel; the shank portion including a slidable switch member movable back and forth axially of the shank portion, the shank portion being formed with an interior, longitudinally extending passageway having an elongated rod element therein, the rod element being connected at one end to the switch member and at its other end to the pawl whereby movement of the switch member in one direction operates to move one of the pawl teeth into engagement with the ratchet wheel and movement of the switch member in the opposite direction operates to move the other pawl tooth into engagement with the ratchet wheel.
Claim 6
Dependent Claim
163 words
A reversible ratchet wrench handle comprising a head portion, a hand grip portion spaced from the head portion and a shank portion rigidly connecting the head and hand grip portions, the longitudinal axes of the head, hand grip and shank portions being colinear; the head portion including a rotatable ratchet wheel and a double toothed, pivotally mounted pawl located adjacent the ratchet wheel; the shank portion including a slidable switch member movable back and forth axially of the shank portion, the shank portion being formed with an interior, longitudinally extending passageway having an elongated rod element therein, the rod element being connected at one end to the switch member and at its other end to the pawl whereby movement of the switch member in one direction operates to move one of the pawl teeth into engagement with the ratchet wheel and movement of the switch member in the opposite direction operates to move the other pawl tooth into engagement with the ratchet wheel.
Claim 7
Dependent Claim
36 words
A wrench handle as defined in claim 4 wherein the head portion includes a spring biased detent engageable with the pawl to releasably hold its said one or other tooth in engagement with the ratchet wheel.
Claim 8
Dependent Claim
47 words
A wrench handle as defined in claim 4 wherein the switch member is located on the shank portion closely adjacent the hand grip portion so that it is easily accessible to the thumb or a finger of the user's hand that is gripping the hand grip portion.
Claim 9
Dependent Claim
36 words
A wrench handle as defined in claim 4 wherein the line joining the center of the ratchet wheel with the pivot point of the pawl is angularly offset from the longitudinal axis of the wrench handle.
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) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |