US3761149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic radial bearing
Assignee: Individual
•
Filing: 1971-09-27
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Granted: 1973-09-25
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Expires: 1991-09-27
Abstract
Abstract A hydrostatic radial bearing having a housing with successive bearing segments in the circumferential direction. Each bearing segment comprises a pressure chamber and a raised edge which surrounds said chamber and together with the rotatable shaft forms an outflow gap. The pressure chambers are located partly beside each other and overlap each other in the circumferential direction. The outflow gaps have a resistance to flow which is variable in the circumferential direction; the resistance to flow varies in such manner that the forces exerted on the shaft by the pressure chambers, in response to a localized unevenness with respect to an imaginary line joining the center of the bearing to the center of one of the bearing segments.
Inventors
- 👤 E Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:37
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0629; F16C32/064; F16C32/0651; F16C32/0659; F16C32/0681; F16C32/0685
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A hyDrostatac radial bearing comprising a stationary housing having a shaft which is rotatable therein, bearing segments in said housing located in pairs opposite to each other and succeeding each other in the circumferential direction, each bearing segment comprising a pressure chamber, a supply duct connected to said chamber, and a raised edge which surrounds said chamber and together with the shaft forms an outflow gap, said successive pressure chambers overlapping each other in the circumferential direction, the outflow gaps having a resistance to flow which is variable in the circumferential direction, the forces exerted on the shaft by two oppositely located pressure chambers in response to a localized unevenness being proportional to cos phi , phi being an angle which denotes the instantaneous angular position of the unevenness with respect to an imaginary line joining the center of the bearing to the center of one of the pressure chambers.
Claim 2
Dependent Claim
150 words
A hyDrostatac radial bearing comprising a stationary housing having a shaft which is rotatable therein, bearing segments in said housing located in pairs opposite to each other and succeeding each other in the circumferential direction, each bearing segment comprising a pressure chamber, a supply duct connected to said chamber, and a raised edge which surrounds said chamber and together with the shaft forms an outflow gap, said successive pressure chambers overlapping each other in the circumferential direction, the outflow gaps having a resistance to flow which is variable in the circumferential direction, the forces exerted on the shaft by two oppositely located pressure chambers in response to a localized unevenness being proportional to cos phi , phi being an angle which denotes the instantaneous angular position of the unevenness with respect to an imaginary line joining the center of the bearing to the center of one of the pressure chambers.
Claim 3
Dependent Claim
49 words
A hydrostatic radial bearing as claimed in claim 1, wherein the outflow gaps have a constant radial height, the axial width of the outflow gaps being profiled so as to increase from the center of the bearing segments towards the two ends thereby providing the variable resistance to flow.
Claim 4
Dependent Claim
25 words
A hydrostatic radial bearing as claimed in claim 2, having four bearing segments, wherein each bearing segment covers substantially half the circumference of the bearing.
Claim 5
Dependent Claim
33 words
A hydrostatic radial bearing as claimed in claim 1 wherein the width of the pressure chambers decreases from the center towards the two ends, the bearing segments having a constant outer axial width.
References Cited (Backward Citations)
US3357759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |