Patent US4303244A successfully refreshed from Google Patents.
US4303244A
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US
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Method for detecting golfer's head movement when putting
Assignee: TWEEDIE ROBERT A TRUSTEE
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Filing: 1981-02-09
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Granted: 1981-12-01
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Expires: 2001-02-09
Abstract
Abstract A golf putting training device comprised of a cap with light emittor adapted to project a spot beam of light to a first position before a golfer putts, said spot to be observed by the golfer immediately after putting to see if the spot beam is in a second position, the distance between the first and second position indicating improper movement of the head of the golfer during putting.
Inventors
- 👤 Charles P. Uppvall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:01
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3608; A63B71/00; A63B71/06; A63B2071/0694; A63B2225/00; A63B2225/74; Y; Y10; Y10S; Y10S273/00; Y10S273/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
An improved method of preventing head movement of a golfer when putting a golfball comprising the steps of: providing a cap member for a golfer to wear with light-emitting means to project a spot beam of light when said cap is worn; projecting said spot beam of light from said light-emitting means in said cap to a first position in the vicinity of said golfball; observing the position of said first light spot; putting in a normal fashion while said golfer tries not to move his head; and observing the position of said light spot again to determine if said spot has moved from said first position to a second position.
Claim 2
Dependent Claim
111 words
An improved method of preventing head movement of a golfer when putting a golfball comprising the steps of: providing a cap member for a golfer to wear with light-emitting means to project a spot beam of light when said cap is worn; projecting said spot beam of light from said light-emitting means in said cap to a first position in the vicinity of said golfball; observing the position of said first light spot; putting in a normal fashion while said golfer tries not to move his head; and observing the position of said light spot again to determine if said spot has moved from said first position to a second position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |