US4174110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertia balanced golf club
Assignee: Individual
•
Filing: 1978-02-10
•
Granted: 1979-11-13
•
Expires: 1998-02-10
Abstract
Abstract A golf club includes a head which is provided adjacent to its toe and heel with weights which are swingable with respect to the head by the moment of inertia given by the swinging motion of the head and the reaction of a ball struck by the head. Resilient materials connecting the head and weights. This swinging motion of the weights with a delayed motion and in a direction perpendicular to the longitudinal axis of head orient the head at a right angle against an intended course of the ball.
Inventors
- 👤 Zenzo Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:17
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A golf club, comprising: a head having a striking face; two weights, respectively disposed with respect to said head adjacent to the toe and heal of the head; and connecting means comprising at least one resilient element, for swingably connecting said weights to said head in such a manner that said weights are independently swingable, with respect to said head when the club is in use, at a right angle to the longitudinal axis of said head in a plane perpendicular to the plane of the striking face of the head.
Claim 2
Dependent Claim
91 words
A golf club, comprising: a head having a striking face; two weights, respectively disposed with respect to said head adjacent to the toe and heal of the head; and connecting means comprising at least one resilient element, for swingably connecting said weights to said head in such a manner that said weights are independently swingable, with respect to said head when the club is in use, at a right angle to the longitudinal axis of said head in a plane perpendicular to the plane of the striking face of the head.
Claim 3
Dependent Claim
32 words
A golf club as claimed in claim 1, wherein said connecting means comprise resilient elements extending outwardly from the toe and heel of said head along the longitudinal axis of said head.
Claim 4
Dependent Claim
56 words
A golf club as claimed in claim 1, wherein said connecting means comprises a resilient element connected, between the ends of said resilient element, to the side of said head opposite the striking face thereof and extending parallel to the longitudinal axis of said head, said weights being fixed to the opposite ends of said element.
Claim 5
Dependent Claim
40 words
A golf club as claimed in claim 3, wherein said weights are reactangular in shape and extend at a right angle to the longitudinal axis of said head beside the toe and heel of said head with a distance therebetween.
References Cited (Backward Citations)
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US3305235A
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US3516674A
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US3801099A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |