Patent US3274836A successfully refreshed from Google Patents.
US3274836A
Expired / Lapsed
US
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Rotary dampers
Assignee: Individual
•
Filing: 1963-10-01
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Granted: 1966-09-27
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Expires: 1983-10-01
Abstract
No abstract record available.
Inventors
- 👤 Nash Alan Richard Brine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:42
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/12; F16F15/00; F16F15/10; F16F15/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A CONTINUOUS ROTATION FLUID FILLED DAMPER COMPRISING, IN COMBINATION, A ROTOR HAVING A FRUSTO-CONICAL SURFACE, A CASING SURROUNDING THE ROTOR, AND A SUPPORT STRUCTURE, SAID SUPPORT STRUCTURE BEING ROTATABLY MOUNTED WITHIN SAID CASING AND BEING JOURNALLED IN SAID CASING, SAID SUPPORT STRUCTURE RELATIVELY SLIDABLY ENGAGING SAID ROTOR TO MAINTAIN THE FRUSTO-CONICAL ROTOR SURFACE COAXIAL WITH THE CORRESPONDINGLY SHAPED INNER SURFACE OF THE CASING COACTING WITH SAID ROTOR SURFACE DESPITE AXIAL MOVEMENT OF THE ROTOR WITH RESPECT TO SAID SUPPORT STRUCTURE, AND AN ADJUSTABLE SECURING DEVICE COUPLED BETWEEN THE ROTOR AND THE CASING TO CONTROL THE AXIAL POSITION OF THE ROTOR IN THE CASING AND THEREFORE TO CONTROL THE SPACING BETWEEN SAID FRUSTO-CONICAL SURFACE ON SAID ROTOR AND SAID CORRESPONDINGLY SHAPED INNER SURFACE OF SAID CASING.
Claim 2
Dependent Claim
125 words
A CONTINUOUS ROTATION FLUID FILLED DAMPER COMPRISING, IN COMBINATION, A ROTOR HAVING A FRUSTO-CONICAL SURFACE, A CASING SURROUNDING THE ROTOR, AND A SUPPORT STRUCTURE, SAID SUPPORT STRUCTURE BEING ROTATABLY MOUNTED WITHIN SAID CASING AND BEING JOURNALLED IN SAID CASING, SAID SUPPORT STRUCTURE RELATIVELY SLIDABLY ENGAGING SAID ROTOR TO MAINTAIN THE FRUSTO-CONICAL ROTOR SURFACE COAXIAL WITH THE CORRESPONDINGLY SHAPED INNER SURFACE OF THE CASING COACTING WITH SAID ROTOR SURFACE DESPITE AXIAL MOVEMENT OF THE ROTOR WITH RESPECT TO SAID SUPPORT STRUCTURE, AND AN ADJUSTABLE SECURING DEVICE COUPLED BETWEEN THE ROTOR AND THE CASING TO CONTROL THE AXIAL POSITION OF THE ROTOR IN THE CASING AND THEREFORE TO CONTROL THE SPACING BETWEEN SAID FRUSTO-CONICAL SURFACE ON SAID ROTOR AND SAID CORRESPONDINGLY SHAPED INNER SURFACE OF SAID CASING.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |