US3286489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-backlash precision coupling
Assignee: Individual
•
Filing: 1965-01-07
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Granted: 1966-11-22
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Expires: 1985-01-07
Abstract
No abstract record available.
Inventors
- 👤 Jerome C Turro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:28
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A SHAFT COUPLING COMPRISING, IN COMBINATION, FIRST AND SECOND GENERALLY CYLINDRICAL ANNULAR BODIES EACH HAVING A CENTRAL BORE, MEANS ON EACH OF SAID BODIES FOR CLAMPING SAME TO A RESPECTIVE SHAFT TO BE COUPLED TOGETHER, SAID FIRST BODY BEING PROVIDED WITH LEAF SPRING MEANS FORMING TWO PAIRS OF DIAMETRICALLY OPPOSED SPRING WALLS MUTUALLY FLARING OUT FORWARDLY TOWARD SAID SECOND BODY, SAID SECOND BODY HAVING A PAIR OF PROJECTING BALL MEMBERS FIXED THERETO, EACH BALL MEMBER BEING POSITIONED FOR INSERTABLE ENGAGEMENT BETWEEN ONE PAIR OF SAID TWO PAIRS OF SPRING WALLS.
Claim 2
Dependent Claim
90 words
A SHAFT COUPLING COMPRISING, IN COMBINATION, FIRST AND SECOND GENERALLY CYLINDRICAL ANNULAR BODIES EACH HAVING A CENTRAL BORE, MEANS ON EACH OF SAID BODIES FOR CLAMPING SAME TO A RESPECTIVE SHAFT TO BE COUPLED TOGETHER, SAID FIRST BODY BEING PROVIDED WITH LEAF SPRING MEANS FORMING TWO PAIRS OF DIAMETRICALLY OPPOSED SPRING WALLS MUTUALLY FLARING OUT FORWARDLY TOWARD SAID SECOND BODY, SAID SECOND BODY HAVING A PAIR OF PROJECTING BALL MEMBERS FIXED THERETO, EACH BALL MEMBER BEING POSITIONED FOR INSERTABLE ENGAGEMENT BETWEEN ONE PAIR OF SAID TWO PAIRS OF SPRING WALLS.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |