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US3359871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary actuator hub seal
Assignee: Houdaille Industries Inc
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Filing: 1965-10-22
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Granted: 1967-12-26
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Gordon W Kamman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:02
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; F16J15/545
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A ROTARY ACTUATOR, A HOUSING HAVING AN INTERIOR WALL FORMING AN ACTUATOR CHAMBER AND HAVING AN ABUTMENT EXTENDING RADIALLY INWARDLY THEREFROM, A WINGSHAFT WITHIN SAID HOUSING AND HAVING A HUB HAVING AT LEAST ONE VANE EXTENDING RADIALLY THEREFROM. AN ACTUATOR SHAFT EXTENDING FROM SAID HUB, A SHOULDER DEFINING THE JUNCTION OF SAID ACTUATOR SHAFT AND HUB, THE IMPROVEMENTS COMPRISING A THRUST RING SEATED IN SAID HOUSING AND HAVING AN INTERNAL WALL OF A DIAMETER SUBSTANTIALLY EQUAL TO THE EXTERNAL DIAMETER OF SAID HUB, A SEAL ON SAID SHAFT IN REGISTRY WITH SAID INTERNAL WALL OF SAID THRUST RING, AND A FLAT SPRING WASHER RETAINED IN ABUTTING ENGAGEMENT WITH THE OUTER SIDE OF SAID THRUST RING AND ENGAGING THE OUTER FACE OF SAID SEAL AND PRESSING SAID SEAL INTO SEALING ENGAGEMENT WITH SAID THRUST RING AND SHOULDER WITH THE AXIAL THRUST REQUIRED TO SEAL THE END OF SAID HOUSING ALONG SAID HUB.
Claim 2
Dependent Claim
152 words
IN A ROTARY ACTUATOR, A HOUSING HAVING AN INTERIOR WALL FORMING AN ACTUATOR CHAMBER AND HAVING AN ABUTMENT EXTENDING RADIALLY INWARDLY THEREFROM, A WINGSHAFT WITHIN SAID HOUSING AND HAVING A HUB HAVING AT LEAST ONE VANE EXTENDING RADIALLY THEREFROM. AN ACTUATOR SHAFT EXTENDING FROM SAID HUB, A SHOULDER DEFINING THE JUNCTION OF SAID ACTUATOR SHAFT AND HUB, THE IMPROVEMENTS COMPRISING A THRUST RING SEATED IN SAID HOUSING AND HAVING AN INTERNAL WALL OF A DIAMETER SUBSTANTIALLY EQUAL TO THE EXTERNAL DIAMETER OF SAID HUB, A SEAL ON SAID SHAFT IN REGISTRY WITH SAID INTERNAL WALL OF SAID THRUST RING, AND A FLAT SPRING WASHER RETAINED IN ABUTTING ENGAGEMENT WITH THE OUTER SIDE OF SAID THRUST RING AND ENGAGING THE OUTER FACE OF SAID SEAL AND PRESSING SAID SEAL INTO SEALING ENGAGEMENT WITH SAID THRUST RING AND SHOULDER WITH THE AXIAL THRUST REQUIRED TO SEAL THE END OF SAID HOUSING ALONG SAID HUB.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |