US4017083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Putter
Assignee: Individual
•
Filing: 1975-09-19
•
Granted: 1977-04-12
•
Expires: 1995-09-19
Abstract
Abstract A putter has a chamber extending lengthwise of its head in which there is a battery powered motor driving a fly wheel at the outer end of the head at a rate such that a gyroscopic force is provided adequate to stabilize the head against being turned by the golfer as a putt is made. The head is shown as symmetrical so that a putter may be used by either a left-handed or a right-handed golfer and the head may be weighted as desired by placing one or more weights within the chamber. The switch control of the circuit may be manually operated or of the mercury type.
Inventors
- 👤 James A. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:23
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0433; A63B53/007; A63B60/00; A63B60/06; A63B60/16; A63B69/00; A63B69/36; A63B69/3676; A63B69/3685; A63B2053/0491; A63B21/00; A63B21/22; A63B21/225; A63B53/0437; A63B53/0458
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
175 words
A putter comprising a shaft and a head including a ball engaging portion having a chamber, a fly wheel within said chamber adjacent the outer end of said head with its axis disposed lengthwise thereof, the length of said shaft and the angle between said shaft and said axis being such as to enable the ball to be engaged by the ball engaging portion of the head when the shaft is held by the user while standing in putting position, and a battery powered drive for said fly wheel within said putter and connected to said fly wheel, said drive operable to effect the rotation of said fly wheel at a rate such that a gyroscopic force is exerted on the outer end of the head adequate to stabilize the head against accidental turning during a putt from a position at right angles to the wanted path for the ball, said drive including a battery source, a low voltage, high speed motor, and a circuit between said motor and said source and including a switch.
Claim 2
Dependent Claim
175 words
A putter comprising a shaft and a head including a ball engaging portion having a chamber, a fly wheel within said chamber adjacent the outer end of said head with its axis disposed lengthwise thereof, the length of said shaft and the angle between said shaft and said axis being such as to enable the ball to be engaged by the ball engaging portion of the head when the shaft is held by the user while standing in putting position, and a battery powered drive for said fly wheel within said putter and connected to said fly wheel, said drive operable to effect the rotation of said fly wheel at a rate such that a gyroscopic force is exerted on the outer end of the head adequate to stabilize the head against accidental turning during a putt from a position at right angles to the wanted path for the ball, said drive including a battery source, a low voltage, high speed motor, and a circuit between said motor and said source and including a switch.
Claim 3
Dependent Claim
31 words
The putter of claim 1 in which the switch is a mercury switch and is positioned to maintain the circuit open except when the putter is held in a putting position.
Claim 4
Dependent Claim
44 words
The putter of claim 1 in which the shaft is tubular, the battery source and the motor are also within the chamber and one lead of the circuit extends within the shaft to the free end thereof, and the switch is adjacent said end.
Claim 5
Dependent Claim
25 words
The putter of claim 3 in which the switch is of a manually operated type and includes an actuator exposed externally of said shaft end.
Claim 6
Dependent Claim
27 words
The putter of claim 3 in which the switch is a mercury switch positioned to be open except when the putter is held in a putting position.
Claim 7
Dependent Claim
30 words
The putter of claim 3 in which the chamber extends from end-to-end of the head, detachable means closing the rear end thereof, and the chamber is dimensioned to receive weights.
Claim 8
Dependent Claim
42 words
The putter of claim 3 in which the head is symmetrical in lengthwise cross section, the chamber extends centrally from end-to-end thereof, and the diameter of the head is such that in making a putt, an overspin is imparted to the ball.
Claim 9
Dependent Claim
20 words
The putter of claim 7 in which the head is cylindrical in lengthwise cross section and the chamber is concentric.
Claim 10
Dependent Claim
33 words
The putter of claim 1 in which the chamber has a counter bore in its outer end dimensioned to receive the fly wheel and means detachably closing the other end of said chamber.
References Cited (Backward Citations)
US1876657A
Cited
US2823037A
Cited
US2910297A
Cited
US3019555A
Cited
US3700244A
Cited
US3700239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |