US3115372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic type bearing
Assignee: Old Carco LLC
•
Filing: 1962-02-07
•
Granted: 1963-12-24
•
Expires: 1982-02-07
Abstract
No abstract record available.
Inventors
- 👤 Donald O Bard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:07
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN AIR BEARING COMPRISING A HOUSING HAVING A LONG BORE THEREIN, A ROTOR SHAFT JOURNALLED FOR ROTATION THEREIN, AN ENLARGED CYLINDER PORTION OF SAID SHAFT MOUNTED WITH A MECHANICAL CLEARANCE BETWEEN ITS THRUST FACES AND THE ENDS OF SAID HOUSING, SAID HOUSING HAVING A PLURALITY OF LANDS ON THE INTERNAL CIRCUMFERENCE THEREOF PARALLEL TO THE AXIS OF ROTATION OF SAID SHAFT, SAID LANDS BEING PROGRESSIVELY GREATER IN HEIGHT IN THE DIRECTION OF ROTATION OF SAID ROTOR SHAFT, AND A CONDUIT EXTENDING THROUGH SAID HOUSING BETWEEN A POINT PROXIMATE AN AREA OF MAXIMUM HEIGHT OF SAID LANDS INTERMEDIATE THE ENDS OF SAID HOUSING AND A POINT OPPOSED TO THE THRUST SURFACE OF SAID CYLINDER PORTION OF SAID ROTOR SHAFT.
Claim 2
Dependent Claim
118 words
AN AIR BEARING COMPRISING A HOUSING HAVING A LONG BORE THEREIN, A ROTOR SHAFT JOURNALLED FOR ROTATION THEREIN, AN ENLARGED CYLINDER PORTION OF SAID SHAFT MOUNTED WITH A MECHANICAL CLEARANCE BETWEEN ITS THRUST FACES AND THE ENDS OF SAID HOUSING, SAID HOUSING HAVING A PLURALITY OF LANDS ON THE INTERNAL CIRCUMFERENCE THEREOF PARALLEL TO THE AXIS OF ROTATION OF SAID SHAFT, SAID LANDS BEING PROGRESSIVELY GREATER IN HEIGHT IN THE DIRECTION OF ROTATION OF SAID ROTOR SHAFT, AND A CONDUIT EXTENDING THROUGH SAID HOUSING BETWEEN A POINT PROXIMATE AN AREA OF MAXIMUM HEIGHT OF SAID LANDS INTERMEDIATE THE ENDS OF SAID HOUSING AND A POINT OPPOSED TO THE THRUST SURFACE OF SAID CYLINDER PORTION OF SAID ROTOR SHAFT.
References Cited (Backward Citations)
GB721549A
Cited
US3026150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |