Patent US4005870A successfully refreshed from Google Patents.
US4005870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putting training method
Assignee: Individual
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Filing: 1975-10-07
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Granted: 1977-02-01
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Expires: 1995-10-07
Abstract
Abstract A method and machine for teaching the reading of golf putting greens wherein the distance to the cup is calculated and a corresponding force is selected and perfectly applied to a golf ball by the putting machine to verify the calculation. The steps may be repeated until the projected golf ball enters the cup. To compensate for the lie of the putting surface, an optical system using mirrors is mounted to a putter drive assembly to project the golf ball at an angle with respect to the line of sight to the cup. The putter drive assembly includes a plurality of pairs of holes in which two pins are placed to define the plane at which the golfer should strike the ball in order to duplicate the stroke of the putting machine.
Inventors
- 👤 Henry A. Grace
- 👤 Robert G. Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3676
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
238 words
A method for learning to accurately putt a golf ball comprising: the step of providing a machine which is capable of repeatedly projecting a golf ball from a first area on a putting green to a second area on said putting green for a given disposition of said machine; the step of estimating the distance between said first and said second areas; the step of estimating the direction a golf ball should follow to roll on said putting green from said first and to said second area; the step of setting said machine at said first area in accordance with said estimates of distance and direction; the step of positioning a golf ball to be projected by said machine from said first area to said second area; the step of projecting said positioned golf ball by said machine to said second area; repeating, if necessary, the two steps of estimating, the step of setting said machine and the steps of positioning and projecting said golf ball until said golf ball is projected by said machine into said second area; the step of marking the putting plane thrugh which said golf ball was projected by said machine into said second area; the step of placing a golf ball in proximity to said putting plane; and the step of stroking said golf ball placed in proximity to said putting plane with a putter using said putting plane as a guide.
Claim 2
Independent Claim
238 words
A method for learning to accurately putt a golf ball comprising: the step of providing a machine which is capable of repeatedly projecting a golf ball from a first area on a putting green to a second area on said putting green for a given disposition of said machine; the step of estimating the distance between said first and said second areas; the step of estimating the direction a golf ball should follow to roll on said putting green from said first and to said second area; the step of setting said machine at said first area in accordance with said estimates of distance and direction; the step of positioning a golf ball to be projected by said machine from said first area to said second area; the step of projecting said positioned golf ball by said machine to said second area; repeating, if necessary, the two steps of estimating, the step of setting said machine and the steps of positioning and projecting said golf ball until said golf ball is projected by said machine into said second area; the step of marking the putting plane thrugh which said golf ball was projected by said machine into said second area; the step of placing a golf ball in proximity to said putting plane; and the step of stroking said golf ball placed in proximity to said putting plane with a putter using said putting plane as a guide.
Claim 3
Dependent Claim
43 words
A method according to claim 1 wherein said putting plane is marked perpendicular to the direction of movement of said golf ball projected by said machine at a location in proximity to the point where said golf ball is released by said machine.
Claim 4
Dependent Claim
31 words
A method according to claim 2 wherein the step of marking said putting plane includes the placement of two pins into said putting green and thereafter the removal of said machine.
Claim 5
Dependent Claim
17 words
A method according to claim 3 wherein said second area on said putting green is a cup.
References Cited (Backward Citations)
US1618638A
Cited
US3332688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |