US3298756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm thrust bearing
Assignee: Rotron Manufacturing Co Inc
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Filing: 1964-05-14
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Granted: 1967-01-17
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Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Donald S Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:34
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/08; F16C17/00; F16C17/04; F16C33/00; F16C33/02; F16C33/04; F16C33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A THRUST BEARING FOR ROTATING MACHINERY HAVING A SHAFT ROTATING RELATIVELY TO A SURROUNDING MEMBER COMPRISING, ANNULAR GROOVE MEANS AROUND SAID SHAFT BY A CYLINDRICAL ROOT PORTION OF LIMITED AXIAL EXTENT AND A PAIR OF OPPOSED SHOULDERS AT EITHER END OF SAID ROOT PORTION, AT LEAST ONE OF THE SHOULDERS DEFINING SAID GROOVE MEANS SLOPING AWAY FROM THE OTHER SUCH THAT SAID GROOVE MEANS IS WIDEST AT THE PERIPHERY OF SAID SHAFT, AND RESILIENT DIAPHRAGM MEANS HAVING AN APERTURE THEREIN FOR ENGAGEMENT WITH SAID GROOVE MEANS, SAID DIAPHRAGM MEANS ADAPTED TO ROTATE RELATIVE TO SAID SHAFT AND BEING CAPABLE OF ABSORBING THRUST FORCES OCCURRING RELATIVE TO SAID SHAFT, THE AREA OF CONTACT BETWEEN SAID DIAPHRAGM MEANS AND AT LEAST SAID ONE OF SAID SHOULDERS BEING PROPORTIONAL TO THE MAGNITUDE OF SAID THRUST FORCES.
Claim 2
Dependent Claim
133 words
A THRUST BEARING FOR ROTATING MACHINERY HAVING A SHAFT ROTATING RELATIVELY TO A SURROUNDING MEMBER COMPRISING, ANNULAR GROOVE MEANS AROUND SAID SHAFT BY A CYLINDRICAL ROOT PORTION OF LIMITED AXIAL EXTENT AND A PAIR OF OPPOSED SHOULDERS AT EITHER END OF SAID ROOT PORTION, AT LEAST ONE OF THE SHOULDERS DEFINING SAID GROOVE MEANS SLOPING AWAY FROM THE OTHER SUCH THAT SAID GROOVE MEANS IS WIDEST AT THE PERIPHERY OF SAID SHAFT, AND RESILIENT DIAPHRAGM MEANS HAVING AN APERTURE THEREIN FOR ENGAGEMENT WITH SAID GROOVE MEANS, SAID DIAPHRAGM MEANS ADAPTED TO ROTATE RELATIVE TO SAID SHAFT AND BEING CAPABLE OF ABSORBING THRUST FORCES OCCURRING RELATIVE TO SAID SHAFT, THE AREA OF CONTACT BETWEEN SAID DIAPHRAGM MEANS AND AT LEAST SAID ONE OF SAID SHOULDERS BEING PROPORTIONAL TO THE MAGNITUDE OF SAID THRUST FORCES.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |