US3827766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible membrane bearing
Assignee: Individual
•
Filing: 1971-07-06
•
Granted: 1974-08-06
•
Expires: 1991-07-06
Abstract
Abstract A low clearance pressurized fluid bearing with membrane surface suitably supported to allow bending and stretching in the clearance area in such manner to cause bearing action and to improve both load capacity and stiffness by its inherent tendency to compensate deficiencies in flow patterns.
Inventors
- 👤 G Watt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:24
CPC Classifications
F; F16; F16C; F16C37/00; F16C37/002; F16C32/00; F16C32/06; F16C32/0603; F16C32/0662
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A hydrostatic bearing assembly comprising a pair of relatively movable bearing members having opposed complementary bearing surfaces of smooth configurAtion separated by a small clearance through which pressure fluid may be passed to provide bearing action, at least one of the bearing members including an imperforate flexible membrane, one side of said membrane constituting the bearing surface of said one bearing member, the other side of said membrane being connected in supported relation to raised annular lands of said one bearing member which permit extensional and inextensional deformations of the membrane in response to fluid pressure and bearing load, respectively.
Claim 2
Dependent Claim
100 words
A hydrostatic bearing assembly comprising a pair of relatively movable bearing members having opposed complementary bearing surfaces of smooth configurAtion separated by a small clearance through which pressure fluid may be passed to provide bearing action, at least one of the bearing members including an imperforate flexible membrane, one side of said membrane constituting the bearing surface of said one bearing member, the other side of said membrane being connected in supported relation to raised annular lands of said one bearing member which permit extensional and inextensional deformations of the membrane in response to fluid pressure and bearing load, respectively.
Claim 3
Dependent Claim
19 words
A hydrostatic bearing assembly according to claim 1, wherein said opposed bearing surfaces are of complementary regular geometric forms.
Claim 4
Dependent Claim
111 words
A hydrostatic bearing assembly according to claim 1, wherein said flexible membrane is a cylindrical sleeve fitted over a spool having said raised annular lands disposed at its ends and at its mid section, the membrane and spool together constituting a cylindrical shaft serving as said one bearing member, the other bearing member being a housing whose bearing surface is defined by a smooth cylindrical bore in which said one bearing member is coaxially disposed, said bore being relieved as its mid section by an annular groove which serves as a manifold for connecting pressure fluid to said clearance between said opposed bearing surfaces from an inlet passage in the housing.
Claim 5
Dependent Claim
19 words
A hydrostatic bearing assembly according to claim 2, wherein said complementary opposed bearing surfaces are of cylindrical geometrical form.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |