US3303668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible coupling
Assignee: Zurn Industries LLC
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Filing: 1965-01-21
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Granted: 1967-02-14
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:45
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A COUPLING FOR SHAFTS COMPRISING, A SLEEVE ADAPTED TO HAVE FIRST MEANS THEREON FOR ATTACHING IT TO A FIRST SHAFT, SAID SLEEVE TERMINATING IN A FLANGE AT THE END REMOTE FROM SAID FIRST MEANS, INTERNAL TEETH IN SAID FLANGE, A HOLLOW HUB HAVING A PISTON MEMBER SUPPORTED THEREON GENERALLY CONCENTRIC TO SAID HUB, EXTERNAL TEETH ON SAID HUB ENGAGING SAID SLEEVE TEETH, A HOLLOW GENERALLY CYLINDRICAL SHAFT ADAPTER RECEIVED IN SAID HOLLOW OF SAID HUB WITH SAID PISTON SLIDABLY RECEIVED IN SAID HOLLOW SHAFT ADAPTER, FLUID MEANS ADAPTED TO EXERT A FORCE ON SAID PISTON FOR MOVING IT AXIALLY IN SAID HUB SELECTIVELY IN EITHER OF TWO DIRECTIONS, AND MEANS ON SAID HUB ADAPTED TO ENGAGE MEANS ON SAID SLEEVE WHEN SAID HUB IS MOVED TOWARD SAID SLEEVE.
Claim 2
Dependent Claim
128 words
A COUPLING FOR SHAFTS COMPRISING, A SLEEVE ADAPTED TO HAVE FIRST MEANS THEREON FOR ATTACHING IT TO A FIRST SHAFT, SAID SLEEVE TERMINATING IN A FLANGE AT THE END REMOTE FROM SAID FIRST MEANS, INTERNAL TEETH IN SAID FLANGE, A HOLLOW HUB HAVING A PISTON MEMBER SUPPORTED THEREON GENERALLY CONCENTRIC TO SAID HUB, EXTERNAL TEETH ON SAID HUB ENGAGING SAID SLEEVE TEETH, A HOLLOW GENERALLY CYLINDRICAL SHAFT ADAPTER RECEIVED IN SAID HOLLOW OF SAID HUB WITH SAID PISTON SLIDABLY RECEIVED IN SAID HOLLOW SHAFT ADAPTER, FLUID MEANS ADAPTED TO EXERT A FORCE ON SAID PISTON FOR MOVING IT AXIALLY IN SAID HUB SELECTIVELY IN EITHER OF TWO DIRECTIONS, AND MEANS ON SAID HUB ADAPTED TO ENGAGE MEANS ON SAID SLEEVE WHEN SAID HUB IS MOVED TOWARD SAID SLEEVE.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |