US3375893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-modulating flexible choke air bearing
Assignee: Motors Liquidation Co
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Filing: 1965-02-08
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Granted: 1968-04-02
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Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Harry A Mackie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:15
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
A SELF-MODULATING FLEXIBLE CHOKE AIR BEARING COMPRISING, A FLEXIBLE BLADDER DISPOSED BENEATH A LOAD IN PROXIMATE RELATION TO A SURFACE, MEANS FOR ESTABLISHING AND MAINTAINING A FIRST FLUID PRESSURE IN SAID BLADDER, AND MEANS FOR ESTABLISHING AND MAINTAINING A SECOND FLUID PRESSURE BETWEEN SAID BLADDER AND SAID SURFACE GREATER THAN SAID FIRST FLUID PRESSURE CAUSING THE PORTION OF SAID BLADDER ADJACENT SAID SURFACE TO ASSUME A CONCAVE CONFIGURATION ESTABLISHING A CIRCUMFERENTIAL THROTTLING GAP PROVIDING THE SOLE MEANS OF REGULATING DISCHARGE OF SAID SECOND FLUID PRESSURE TO ATMOSPHERE.
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |