Patent US3086775A successfully refreshed from Google Patents.
US3086775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseball practice device
Assignee: Individual
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Filing: 1961-10-19
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Granted: 1963-04-23
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Expires: 1981-10-19
Abstract
No abstract record available.
Inventors
- 👤 James L Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:16
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0073; A63B69/0079; A63B69/0084; A63B2208/00; A63B2208/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A BASEBALL PRACTICE DEVICE COMPRISING, IN COMBINATION, A LINE RIGIDLY SUPPORTED AT EACH END ABOVE THE GROUND, SAID LINE SLOPING RELATIVE TO THE GROUND, A GROOVED WHEEL ROTATIVELY MOUNTED BETWEEN SPACED ARMS OF A BRACKET, SAID LINE PASSING INTERMEDIATE THE ARMS FOR ENGAGEMENT WITH THE GROOVED WHEEL, A SHANK PIVOTALLY SECURED TO THE BRACKET AND PROTRUDING THEREBENEATH FOR SWIVELLED SUPPORT THEREUPON, A COLLAR SECURED UPON SAID SHANK, A YIELDABLE BUMPER CARRIED UPON SAID SHANK INTERMEDIATE SAID COLLAR AND SAID BRACKET FOR ABUTMENT WITH SAID BRACKET IN RESPONSE TO AXIAL MOVEMENT OF SAID SHANK RELATIVE TO SAID BRACKET TO LIMIT SAID AXIAL MOVEMENT OF SAID SHANK RELATIVE TO SAID LINE, A FLEXIBLE LINE SECURED AT ONE END TO A BASEBALL AND AT THE OTHER END TO THE PROTRUDING END OF THE SHANK, SAID BALL BEING SUPPORTED BY THE FLEXIBLE LINE AND ADAPTED TO APPROACH A BATTER UNDER GRAVITY.
Claim 2
Dependent Claim
147 words
A BASEBALL PRACTICE DEVICE COMPRISING, IN COMBINATION, A LINE RIGIDLY SUPPORTED AT EACH END ABOVE THE GROUND, SAID LINE SLOPING RELATIVE TO THE GROUND, A GROOVED WHEEL ROTATIVELY MOUNTED BETWEEN SPACED ARMS OF A BRACKET, SAID LINE PASSING INTERMEDIATE THE ARMS FOR ENGAGEMENT WITH THE GROOVED WHEEL, A SHANK PIVOTALLY SECURED TO THE BRACKET AND PROTRUDING THEREBENEATH FOR SWIVELLED SUPPORT THEREUPON, A COLLAR SECURED UPON SAID SHANK, A YIELDABLE BUMPER CARRIED UPON SAID SHANK INTERMEDIATE SAID COLLAR AND SAID BRACKET FOR ABUTMENT WITH SAID BRACKET IN RESPONSE TO AXIAL MOVEMENT OF SAID SHANK RELATIVE TO SAID BRACKET TO LIMIT SAID AXIAL MOVEMENT OF SAID SHANK RELATIVE TO SAID LINE, A FLEXIBLE LINE SECURED AT ONE END TO A BASEBALL AND AT THE OTHER END TO THE PROTRUDING END OF THE SHANK, SAID BALL BEING SUPPORTED BY THE FLEXIBLE LINE AND ADAPTED TO APPROACH A BATTER UNDER GRAVITY.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |