Patent US3395949A successfully refreshed from Google Patents.
US3395949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-bearing assembly
Assignee: Union Carbide Corp
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Filing: 1964-07-16
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Granted: 1968-08-06
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 Leslie C Kun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:13
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0662; F16C32/067; F01; F01D; F01D25/00; F01D25/18; F01D25/22; F16C32/0603; F16C2360/00; F16C2360/23; F16C2360/24; F16C2360/44; F16C27/00; F16C27/02; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A GAS BEARING ASSEMBLY COMPRISING: (A) A ROTOR HAVING A ROTATABLE SHAFT PORTION; (B) MEANS FOR IMPARTING SPEED OF AT LEAST 2000 R.P.M. TO SAID ROTOR; (C) A RIGID SLEEVE PRIMARY SUPPORT MEMBER SURROUNDING AT LEAST A LONGITUDINAL SECTION OF SAID SHAFT PORTION AND SIZED TO PROVIDE A NARROW ANNULAR SPACE BETWEEN THE INNER SURFACE OF SAID SLEEVE AND THE OUTER SURFACE OF SAID SHAFT; (D) MEANS FOR INTRODUCING SUFFICIENT GAS INTO SAID ANNULAR SPACE TO FOR A STIFF GAS FILM WHICH SUPPORTS AND RADIALLY POSITIONS SAID SHAFT FROM SAID SLEEVE; (E) A MULTIPLICITY OF CHEVRON-SHAPED METAL CIRCULAR SPRINGS WITH THEIR AXES ALIGNED PARALLEL TO THE AXIS OF SHAFT ROTATION, HAVING INNER EDGES CONTIGUOUSLY ASSOCIATED WITH AND IN LOAD-BEARING RELATION TO THE OUTER SURFACE OF SAID SLEEVE AS ELASTIC SUPPORT MEANS; (F) A RIGID SECONDARY SUPPORT MEMBER FOR AND CONTIGUOUSLY ASSOCIATED WITH THE OUTER EDGES OF SAID CHEVRON-SHAPED CIRCULAR METAL SPRINGS; AND (G) MEANS FOR RECEIVING AT LEAST PART OF THE ENERGY OF ROTATION FROM SAID MOTOR.
Claim 2
Dependent Claim
167 words
A GAS BEARING ASSEMBLY COMPRISING: (A) A ROTOR HAVING A ROTATABLE SHAFT PORTION; (B) MEANS FOR IMPARTING SPEED OF AT LEAST 2000 R.P.M. TO SAID ROTOR; (C) A RIGID SLEEVE PRIMARY SUPPORT MEMBER SURROUNDING AT LEAST A LONGITUDINAL SECTION OF SAID SHAFT PORTION AND SIZED TO PROVIDE A NARROW ANNULAR SPACE BETWEEN THE INNER SURFACE OF SAID SLEEVE AND THE OUTER SURFACE OF SAID SHAFT; (D) MEANS FOR INTRODUCING SUFFICIENT GAS INTO SAID ANNULAR SPACE TO FOR A STIFF GAS FILM WHICH SUPPORTS AND RADIALLY POSITIONS SAID SHAFT FROM SAID SLEEVE; (E) A MULTIPLICITY OF CHEVRON-SHAPED METAL CIRCULAR SPRINGS WITH THEIR AXES ALIGNED PARALLEL TO THE AXIS OF SHAFT ROTATION, HAVING INNER EDGES CONTIGUOUSLY ASSOCIATED WITH AND IN LOAD-BEARING RELATION TO THE OUTER SURFACE OF SAID SLEEVE AS ELASTIC SUPPORT MEANS; (F) A RIGID SECONDARY SUPPORT MEMBER FOR AND CONTIGUOUSLY ASSOCIATED WITH THE OUTER EDGES OF SAID CHEVRON-SHAPED CIRCULAR METAL SPRINGS; AND (G) MEANS FOR RECEIVING AT LEAST PART OF THE ENERGY OF ROTATION FROM SAID MOTOR.
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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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |