Patent US461322A successfully refreshed from Google Patents.
Patent US3814486A successfully refreshed from Google Patents.
US3814486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic thrust bearing supports
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1972-07-28
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Granted: 1974-06-04
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Expires: 1992-07-28
Abstract
Abstract An arrangement for axially supporting a shaft or the like comprising a housing in which the end of the shaft is journalled. A hydrostatic thrust bearing is arranged along the end of the shaft within the housing. The thrust bearing comprises a first disk fixed relative to the shaft end, a second disk fixed relative to the housing and means for feeding fluid under pressure therebetween. An annular piston is arranged between the first and second disks to be axially movable, under action of the fluid, relative to and between said first and second disks, responsive to changes in pressure caused by external loading.
Inventors
- 👤 R Schurger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:17
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0681; F16C32/0692; F16C41/00; F16C41/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
An arrangement for axially supporting a shaft and the like comprising a housing in which the end of said shaft is journalled and at least two hydrostatic thrust bearings arranged along said end within said housing, each of said thrust bearings comprising a first disk fixed relative to said shaft end, a second disk fixed relative to said housing and means for feeding fluid under pressure therebetween, an annular piston arranged between the first and second disks of one thrust bearing adjacent said shaft to be axially movable under action of said fluid relative to and between said first and second disks thereof, under changes in pressure caused by external loading and a channel in said shaft communicating with the space between the piston and the associated first disk of one of said thrust bearings and the first and second disks of the other thrust bearing.
Claim 2
Dependent Claim
146 words
An arrangement for axially supporting a shaft and the like comprising a housing in which the end of said shaft is journalled and at least two hydrostatic thrust bearings arranged along said end within said housing, each of said thrust bearings comprising a first disk fixed relative to said shaft end, a second disk fixed relative to said housing and means for feeding fluid under pressure therebetween, an annular piston arranged between the first and second disks of one thrust bearing adjacent said shaft to be axially movable under action of said fluid relative to and between said first and second disks thereof, under changes in pressure caused by external loading and a channel in said shaft communicating with the space between the piston and the associated first disk of one of said thrust bearings and the first and second disks of the other thrust bearing.
Claim 3
Dependent Claim
23 words
The arrangement according to claim 1 wherein the means for feeding fluid between said disks comprise a channel extending through said second disks.
Claim 4
Dependent Claim
22 words
The arrangement according to claim 1 including channel means for communicating between the thrust bearings to permit equalization of fluid pressure therebetween.
Claim 5
Dependent Claim
30 words
The arrangement according to claim 1 wherein the means for feeding said fluid to each of said thrust bearings are connected in common to a source of fluid under pressure.
Claim 6
Dependent Claim
18 words
The arrangement according to claim 1 wherein said piston is held against rotary movement relative to said shaft.
Claim 7
Dependent Claim
21 words
The arrangement according to claim 5 wherein said piston is secured against rotary movement by pins fixed within said first disk.
References Cited (Backward Citations)
FR1102638A
Cited
US3672733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |