US3741550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for monitoring golf practice swings
Assignee: DYNASTY OIL AND MINERALS CORP
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Filing: 1971-12-03
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Granted: 1973-06-26
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Expires: 1991-12-03
Abstract
Abstract A device for monitoring golf swings during practice with a golf club utilizes knock-down pegs pivotally mounted in a practice pad in mutually spaced relationship along a strip of artificial turf. Each peg has a preferably integral foot formed as a transverse pivot pin and rotatably received by a journal recess formed in the underside of the practice pad, the normally upright portion of the peg extending upwardly through the practice pad to be knocked down if and when hit during a practice swing. The practice pad is molded from a flexible resilient material to provide integral detents bordering the recesses. These yield to permit insertion of the pegs from the underside of the pad and serve to retain the pegs in operative position once inserted.
Inventors
- 👤 J Landures
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:05
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
215 words
A device for monitoring golf club swings during practice, comprising a practice pad molded from a tough, flexible-resilient material to provide, superficially thereof, a swing monitoring zone; knock-down pegs removably and replaceably journaled in said pad at swing monitoring positions relative to said zone, each of said pegs having a normally upright stem member and a solid foot of transverse pivot pin formation adapted to be journaled in said pad; journal recesses formed in said pad at the underside thereof and open at said underside for the insertion thereinto of the pivot pin feet of respective knock-down pegs; holes extending through said practice pad from the respective journal recesses to the upperside of the pad for receiving the stem members of said respective knock-down pegs; channels in the upperside of said practice pad extending in the direction of peg knock-down from the respective holes for accommodating said stem members when the respective pegs are knocked down; and yieldable detents bordering the openings of the respective journal recesses at the underside of said practice pad, for permitting insertion and removal of the knock-down pegs from said underside and being in direct engagement with the pivot pin feet of the respective pegs when in place for normally retaining said pegs in operative position within said practice pad.
Claim 2
Independent Claim
215 words
A device for monitoring golf club swings during practice, comprising a practice pad molded from a tough, flexible-resilient material to provide, superficially thereof, a swing monitoring zone; knock-down pegs removably and replaceably journaled in said pad at swing monitoring positions relative to said zone, each of said pegs having a normally upright stem member and a solid foot of transverse pivot pin formation adapted to be journaled in said pad; journal recesses formed in said pad at the underside thereof and open at said underside for the insertion thereinto of the pivot pin feet of respective knock-down pegs; holes extending through said practice pad from the respective journal recesses to the upperside of the pad for receiving the stem members of said respective knock-down pegs; channels in the upperside of said practice pad extending in the direction of peg knock-down from the respective holes for accommodating said stem members when the respective pegs are knocked down; and yieldable detents bordering the openings of the respective journal recesses at the underside of said practice pad, for permitting insertion and removal of the knock-down pegs from said underside and being in direct engagement with the pivot pin feet of the respective pegs when in place for normally retaining said pegs in operative position within said practice pad.
Claim 3
Dependent Claim
33 words
A device in accordance with claim 1, wherein the practice pad is molded with an elongate channel extending between opposite, elongate, monitoring strips; and artificial turf is secured within and along said channel.
Claim 4
Dependent Claim
27 words
A device in accordance with claim 2, wherein correct-stroke monitoring pegs are located along the artificial turf, and deviant-stroke monitoring pegs are located along the monitoring strips.
Claim 5
Dependent Claim
25 words
A device in accordance with claim 3, wherein the deviant-stroke monitoring pegs have transverse reach bars at their upper ends directed toward the artificial turf.
Claim 6
Dependent Claim
30 words
A device in accordance with claim 4, wherein the deviant-stroke monitoring pegs along one of the monitoring strips are significantly shorter than those along the other of the monitoring strips.
Claim 7
Dependent Claim
41 words
A device in accordance with claim 1, wherein the practice pad is molded with a network of strengthening ribs on its underside and bosses of the flexible-resilient material are molded within said network, the journal recesses being provided within respectivE bosses.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |