US4377282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrist activator
Assignee: Individual
•
Filing: 1980-12-11
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Granted: 1983-03-22
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Expires: 2000-12-11
Abstract
Abstract A wrist exercise apparatus, particularly adapted for use by an athlete such as a baseball pitcher, is disclosed. The exercise apparatus has a weighted, elongated, rectangular frame which is adapted to be grasped by the pitcher and moved in a simulated pitching motion. The frame includes side members, a weighted cross member displaced to one side of the plane in which the frame lies at one end, a wrist-backing cross member at the other end, and a transverse hand grip intermediate the two ends which is longitudinally adjustable to accommodate variations in the length of the user's hand.
Inventors
- 👤 Thomas J. Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:45
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/06; A63B21/072; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4035; A63B23/00; A63B23/035; A63B23/03508; A63B23/12; A63B23/129; A63B69/00; A63B69/0002; A63B2069/0004; A63B2069/0006; A63B21/4041; A63B21/4043; A63B23/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
An apparatus for use in exercising the wrist, particularly for pitching, comprising a rigid elongate frame having a weight at one end, a transverse wrist bar at the other end, a hand grip fastened intermediate the wrist bar and the weight, said wrist bar and hand grip defining a plane and the center of gravity of the weight lying outside of the plane, and means for adjusting the spacing between the hand grip and the wrist bar to fit the hand of the user.
Claim 2
Independent Claim
84 words
An apparatus for use in exercising the wrist, particularly for pitching, comprising a rigid elongate frame having a weight at one end, a transverse wrist bar at the other end, a hand grip fastened intermediate the wrist bar and the weight, said wrist bar and hand grip defining a plane and the center of gravity of the weight lying outside of the plane, and means for adjusting the spacing between the hand grip and the wrist bar to fit the hand of the user.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 further comprising the surface of the wrist bar being comfortably rounded and the hand grip having a padded surface.
Claim 4
Dependent Claim
45 words
The apparatus of claim 1 wherein the spacing between the finger bar and the wrist bar is adjusted so that said wrist bar rests on top of the superficial ligaments forming part of the joint where the bones of the hand and forearm are joined.
References Cited (Backward Citations)
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Cited
US1523900A
Cited
US1658108A
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US2396106A
Cited
GB622320A
Cited
US2850748A
Cited
US3445109A
Cited
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Cited
US3518024A
Cited
US3874660A
Cited
US4109908A
Cited
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Cited
US4327908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |