US3626510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic bearing system
Assignee: Individual
•
Filing: 1970-09-04
•
Granted: 1971-12-07
•
Expires: 1990-09-04
Abstract
Abstract A hydraulic thrust bearing having bearing members with horizontally aligned, spaced bearing surfaces and a liquid completely filling the space between the surfaces. One member is oscillated normal to the bearing surfaces to generate a positive load supporting force in the bearing.
Inventors
- 👤 James J Kauzlarich
- 👤 Richard D Rheutan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:54
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/04; F16C17/08; F16C32/00; F16C32/06; F16C32/0603; F16C32/0607; F16C32/0611; F16C32/0614; F16C2370/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A hydraulic thrust bearing comprising: a first bearing member having a bearing surface; a second bearing member having a bearing surface parallel to and spaced from said first bearing surface; a liquid completely filling the space between said bearing surfaces; means to oscillate at least one of said bearing members normal to said bearing surfaces to cyclically vary the thickness of said space and oscillate said liquid in and out; supply means to positively maintain said space filled with liquid; whereby a positive load supporting force is generated in said bearing by the oscillation of said liquid; and means to pressurize said liquid to preclude cavitation therein.
Claim 2
Dependent Claim
107 words
A hydraulic thrust bearing comprising: a first bearing member having a bearing surface; a second bearing member having a bearing surface parallel to and spaced from said first bearing surface; a liquid completely filling the space between said bearing surfaces; means to oscillate at least one of said bearing members normal to said bearing surfaces to cyclically vary the thickness of said space and oscillate said liquid in and out; supply means to positively maintain said space filled with liquid; whereby a positive load supporting force is generated in said bearing by the oscillation of said liquid; and means to pressurize said liquid to preclude cavitation therein.
Claim 3
Dependent Claim
30 words
A bearing in accordance with claim 1 wherein said supply means comprises walls defining a reseRvoir around said bearing surfaces and means to maintain said reservoir filled with said liquid.
Claim 4
Dependent Claim
23 words
A bearing in accordance with claim 1 further comprising means to maintain a minimum clearance between said bearing surfaces for start up purposes.
Claim 5
Dependent Claim
32 words
A bearing in accordance with claim 1 wherein the bearing surface of one of said members is convex and the corresponding bearing surface of the other of said bearing members is concave.
Claim 6
Dependent Claim
47 words
A bearing in accordance with claim 1 wherein said positive load supporting force averages per cycle according to the following relationship: where: FH Load Supporting Force, lbsf Rho Liquid Density, lbsm/ft3 e oscillation amplitude/mean separation a/ho omega Oscillating Frequency, radians/sec. gc32.2 (lbsm-ft/lbsf-sec2) R Radius of Bearing, ft.
Claim 7
Dependent Claim
28 words
A bearing in accordance with claim 1 wherein pressure is applied by said means to pressurize said liquid according to the following relationship: where: po pressure applied, lbsf/ft2.
Claim 8
Dependent Claim
53 words
A bearing in accordance with claim 1 wherein said first bearing member is disposed on one end of a rotary shaft of magnetostrictive material and wherein said means to oscillate comprises a coil and control means to cyclically impose a magnetic field and longitudinally oscillate said shaft at a desired frequency and amplitude.
References Cited (Backward Citations)
US3046795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |