Patent US4063733A successfully refreshed from Google Patents.
US4063733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club
Assignee: Individual
•
Filing: 1971-08-17
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Granted: 1977-12-20
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Expires: 1991-08-17
Abstract
Abstract A golf club is presented wherein the point of attachment, or the effective point of attachment, of the shaft to the club head is offset forward of the center of gravity of the head. The offset is in an amount such that the force couple created by translational acceleration of the head during the forward part of the stroke of the club is approximately equal to the torque required to overcome and opposite to the rotational inertia of the head to turn the club face from an angular position of other than perpendicular to the path of travel of the center of gravity on the backstroke to an angular position at impact substantially perpendicular to the path of travel of the center of gravity.
Inventors
- 👤 Mark C. Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:27
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
187 words
A golf club having: a head having a center of gravity; a toe portion and a heel portion on said head, said center of gravity being between said toe and said heel; and a shaft connected to said head, the effective location of connection of said shaft to said head being offset forward of said center of gravity of said head toward said toe and defining the point on said head at which the force generated by a golfer swinging the club in a normal stroke of the club is effectively applied, said offset toward said toe being in an amount such that the force couple created by translational acceleration of the head during the forward part of the stroke of the club is approximately equal to the torque required to overcome and opposite to the rotational inertia of said head to turn the face of said head from an angular position of other than perpendicular to the path of travel of said center of gravity on the backstroke to an angular position at impact substantially perpendicular to the path of travel of said center of gravity.
Claim 2
Dependent Claim
187 words
A golf club having: a head having a center of gravity; a toe portion and a heel portion on said head, said center of gravity being between said toe and said heel; and a shaft connected to said head, the effective location of connection of said shaft to said head being offset forward of said center of gravity of said head toward said toe and defining the point on said head at which the force generated by a golfer swinging the club in a normal stroke of the club is effectively applied, said offset toward said toe being in an amount such that the force couple created by translational acceleration of the head during the forward part of the stroke of the club is approximately equal to the torque required to overcome and opposite to the rotational inertia of said head to turn the face of said head from an angular position of other than perpendicular to the path of travel of said center of gravity on the backstroke to an angular position at impact substantially perpendicular to the path of travel of said center of gravity.
Claim 3
Dependent Claim
26 words
A golf club as in claim 1 wherein: the actual location of connection of said shaft to said head coincides with said effective location of connection.
Claim 4
Dependent Claim
27 words
A golf club as in claim 1 wherein: the actual location of connection of said shaft to said head is other than the effective point of connection.
Claim 5
Dependent Claim
28 words
A golf club as in claim 3 wherein: said shaft has an axis, the effective location of connection of said shaft to said head being on said axis.
Claim 6
Dependent Claim
42 words
A golf club as in claim 1 wherein: said shaft is actually connected to said head on the heel side of said center of gravity, said shaft having an axis passing forward of said center of gravity on the toe side thereof.
Claim 7
Dependent Claim
18 words
A golf club as in claim 1 wherein: said toe portion and said heel portion are selectively weighted.
Claim 8
Dependent Claim
19 words
A golf club as in claim 6 wherein: said toe portion and said heel portion are of different weights.
Claim 9
Dependent Claim
37 words
A golf club as in claim 7 wherein: the actual location of said shaft to said head is at the geometric center of said head, said center of gravity being between said geometric center and said heel.
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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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |