Patent US3941434A successfully refreshed from Google Patents.
US3941434A
Expired / Lapsed
US
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Hydrostatic bearing
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1974-09-26
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Granted: 1976-03-02
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Expires: 1994-09-26
Abstract
Abstract A hydrostatic bearing having a cylindrical sleeve in which a shaft is located. The inner surface of the sleeve is formed with a plurality of bearing compartments about its periphery separated by axial webs. Each web is provided with a recess forming a chamber running parallel to the axis of the sleeve and having a radial hole communicating therethrough. Each hole is connected in common to a source of bearing media under pressure.
Inventors
- 👤 Rainer Schurger
- 👤 Erich Burkl
- 👤 Lothar Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:47
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: 6
Claim 1
Independent Claim
80 words
A hydrostatic radial bearing comprising a cylindrical sleeve, the inner surface of which is formed with at least one pair of compartments circumferentially spaced about its periphery, adjacent ones of said compartments being separated by an axial web, each of a pair of diametrically opposed webs having a chamber extending parallel to the axis of said sleeve and a hole extending radially through said sleeve communicating with its associated chamber for connection to a source of bearing media under pressure.
Claim 2
Dependent Claim
80 words
A hydrostatic radial bearing comprising a cylindrical sleeve, the inner surface of which is formed with at least one pair of compartments circumferentially spaced about its periphery, adjacent ones of said compartments being separated by an axial web, each of a pair of diametrically opposed webs having a chamber extending parallel to the axis of said sleeve and a hole extending radially through said sleeve communicating with its associated chamber for connection to a source of bearing media under pressure.
Claim 3
Dependent Claim
39 words
The bearing according to claim 1 wherein said compartments are circumferentially spaced symmetrically about the inner periphery of said sleeve and said webs extend parallel to the axis of said sleeve and integral with the periphery of said sleeve.
Claim 4
Dependent Claim
21 words
The bearing according to claim 1 including means for connecting said radial holes to a common source of lubricant under pressure.
Claim 5
Dependent Claim
24 words
The bearing according to claim 1 including an annular groove formed on the outer surface of said sleeve communicating with each of said holes.
Claim 6
Dependent Claim
19 words
The bearing according to claim 2 wherein said webs having a radius uniform with that of said inner surface.
References Cited (Backward Citations)
US3101224A
Cited
US3508799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |