Patent US3661432A successfully refreshed from Google Patents.
US3661432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic bearing assembly
Assignee: Ikegai Corp
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Filing: 1971-02-22
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Granted: 1972-05-09
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Expires: 1991-02-22
Abstract
Abstract A hydrostatic bearing assembly in which an externally pressurized fluid is pumped to completely separate the bearing from the object which it supports; by utilizing the elastic deformation of a portion of the bearing itself, the flow rate of the pressurized fluid is controlled, and any increase in the pressure in that pocket which is subjected to the load serves to reduce the amount of the passage of this fluid from said pocket as a result of the elastic deformation of the bearing, and thus, the load supporting characteristics of the bearing is improved.
Inventors
- 👤 Kenzo Aihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:01
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0629; F16C32/064; F16C32/0651; F16C32/0659
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
104 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by said bearing through the passage of pressurized fluid supplied from said pressure source and flowing from said pockets, wherein in those regions of said bearing which are located in the vicinity of said narrow spaces are provided portions elastically deformable by the pocket pressure, so that the elastic deformations in said portions vary the amount of said narrowed spaces to alter passage resistance of pressurized fluid flowing from said pockets.
Claim 2
Dependent Claim
104 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by said bearing through the passage of pressurized fluid supplied from said pressure source and flowing from said pockets, wherein in those regions of said bearing which are located in the vicinity of said narrow spaces are provided portions elastically deformable by the pocket pressure, so that the elastic deformations in said portions vary the amount of said narrowed spaces to alter passage resistance of pressurized fluid flowing from said pockets.
Claim 3
Dependent Claim
137 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via their corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by said bearing through the passage of pressurized fluid supplied from said pressure source and flowing from said pockets, wherein said bearing has wall-like projections each being defined by a surface of the bearing facing said narrow space, an inner wall surface of each pocket and the side of each pocket exposed to the atmospheric pressure, said wall-like projections each having a narrowed base portion to enable said projection to elastically incline by the pocket pressured at its narrowed base serving as a fulcrum, to vary the amount of said narrow space and alter passage resistance of pressurized fluid flowing from each pocket.
Claim 4
Dependent Claim
137 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via their corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by said bearing through the passage of pressurized fluid supplied from said pressure source and flowing from said pockets, wherein said bearing has wall-like projections each being defined by a surface of the bearing facing said narrow space, an inner wall surface of each pocket and the side of each pocket exposed to the atmospheric pressure, said wall-like projections each having a narrowed base portion to enable said projection to elastically incline by the pocket pressured at its narrowed base serving as a fulcrum, to vary the amount of said narrow space and alter passage resistance of pressurized fluid flowing from each pocket.
Claim 5
Dependent Claim
124 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by this bearing through the passage of the pressurized fluid supplied from said source and flowing from said pockets, wherein pressure chambers communicating with adjacent pockets are provided within said bearing in the vicinity of said narrow spaces, respectively, so that each of said pressure chambers has an elastic wall facing said object to be supported, whereby an elastic deformation of said elastic wall caused by the pressure in each pocket communicating with each corresponding pressure chamber varies the amount of said narrow space to alter passage resistance of pressurized fluid.
Claim 6
Dependent Claim
124 words
A hydraulic bearing assembly having pockets formed in a bearing and connected to a hydraulic pressure source via corresponding orifices, and defining narrow spaces between said bearing and an object to be supported by this bearing through the passage of the pressurized fluid supplied from said source and flowing from said pockets, wherein pressure chambers communicating with adjacent pockets are provided within said bearing in the vicinity of said narrow spaces, respectively, so that each of said pressure chambers has an elastic wall facing said object to be supported, whereby an elastic deformation of said elastic wall caused by the pressure in each pocket communicating with each corresponding pressure chamber varies the amount of said narrow space to alter passage resistance of pressurized fluid.
References Cited (Backward Citations)
US2877066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |