Patent US864171A successfully refreshed from Google Patents.
US4070932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible handle for a tool headpiece
Assignee: Individual
•
Filing: 1977-03-01
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Granted: 1978-01-31
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Expires: 1997-03-01
Abstract
Abstract An extensible handle for applying increased torque to a tool headpiece, such as a ratchet wrench. The handle includes a sleeve which carries the tool headpiece. A rod is telescopically received within the sleeve and is resiliently biased towards an extended position. A latch is provided for locking the rod in at least a first retracted position of lesser torque and a second extended position in which greater torque may be applied to the tool headpiece.
Inventors
- 👤 Richard W. Jeannotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:03
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/04; B25G1/043; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/20864
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
An extensible tool handle for applying different degrees of torque to a tool headpiece, which handle comprises, in combination: a. a sleeve for supporting the tool headpiece at one end of the sleeve, b. a rod telescopically received within the other end of the sleeve and having at least one I-shaped groove along the surface thereof for permitting the rod to assume at least one position of retraction and at least one position of extension with respect to the sleeve, c. resilient means disposed within the sleeve for biasing the rod towards the position of extension, d. latch means carried by the sleeve for engaging the groove and locking the rod against movement with respect to the sleeve in the positions of retraction and extension, and e. a handgrip carried by the free end of the rod, which handgrip remains substantially entirely outside of the sleeve when the rod is in the position of retraction.
Claim 2
Dependent Claim
155 words
An extensible tool handle for applying different degrees of torque to a tool headpiece, which handle comprises, in combination: a. a sleeve for supporting the tool headpiece at one end of the sleeve, b. a rod telescopically received within the other end of the sleeve and having at least one I-shaped groove along the surface thereof for permitting the rod to assume at least one position of retraction and at least one position of extension with respect to the sleeve, c. resilient means disposed within the sleeve for biasing the rod towards the position of extension, d. latch means carried by the sleeve for engaging the groove and locking the rod against movement with respect to the sleeve in the positions of retraction and extension, and e. a handgrip carried by the free end of the rod, which handgrip remains substantially entirely outside of the sleeve when the rod is in the position of retraction.
Claim 3
Dependent Claim
12 words
The handle of claim 1 wherein the tool headpiece is a wrench.
Claim 4
Dependent Claim
13 words
The handle of claim 1 wherein the resilient means includes a coil spring.
Claim 5
Dependent Claim
21 words
The handle of claim 1 wherein the latch means includes a screw having an inwardly projecting abutment for engaging the groove.
Claim 6
Dependent Claim
78 words
The handle of claim 1 wherein the groove includes: a. at least one longitudinal leg portion engaging the latch means during retraction and extension of the rod, b. at least one transverse leg portion engaging the latch means for locking the rod in a position of retraction upon rotation of the rod, and c. at least one transverse leg portion engaging the latch means for locking the rod in a position of extension upon rotation of the rod.
References Cited (Backward Citations)
US400944A
Cited
US1030592A
Cited
US1203853A
Cited
US1284351A
Cited
US1424794A
Cited
US1575593A
Cited
US2282148A
Cited
US2438633A
Cited
US2483396A
Cited
US2520652A
Cited
US2592978A
Cited
US2869410A
Cited
US2963930A
Cited
US2964981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |