Patent US5316954A successfully refreshed from Google Patents.
Patent US3357759A successfully refreshed from Google Patents.
US3357759A
Expired / Lapsed
US
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Bearings
Assignee: SERVOMATIC HYDRAULICS GUILDFORD Ltd
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Filing: 1965-02-23
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Granted: 1967-12-12
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Stephenson Norman Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:13
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0629; F16C32/064; F16C32/0644; F16C32/0651; F16C32/0659
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A HYDROSTATIC BEARING WHICH IS CAPABLE OF HOLDING, IN A FLOATING STATE, A ROTOR JOURNALLED THEREIN AND WHICH COMPRISES AT LEAST 3 PRESSURE PADS DEFINED BY EDGES OF PARALLELOGRAM CONFIGURATION PLACED SYMMETRICALLY AROUND THE CIRCUMFERENCE OF THE BEARING SURFACE OF A JOURNAL, EACH PAD HAVING A CENTRAL RECESS ALSO DEFINED BY EDGES OF PARALLELOGRAM CONFIGURATION, THE PADS BEING SEPARATED FROM THE ROTOR BY A FLUID AND FROM EACH OTHER BY EXHAUST CHANNELS, AND INLET MEANS IN EACH RECESS BY WHICH
Claim 2
Dependent Claim
81 words
IN A HYDROSTATIC BEARING WHICH IS CAPABLE OF HOLDING, IN A FLOATING STATE, A ROTOR JOURNALLED THEREIN AND WHICH COMPRISES AT LEAST 3 PRESSURE PADS DEFINED BY EDGES OF PARALLELOGRAM CONFIGURATION PLACED SYMMETRICALLY AROUND THE CIRCUMFERENCE OF THE BEARING SURFACE OF A JOURNAL, EACH PAD HAVING A CENTRAL RECESS ALSO DEFINED BY EDGES OF PARALLELOGRAM CONFIGURATION, THE PADS BEING SEPARATED FROM THE ROTOR BY A FLUID AND FROM EACH OTHER BY EXHAUST CHANNELS, AND INLET MEANS IN EACH RECESS BY WHICH
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |