US4099799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cantilever mounted resilient pad gas bearing
Assignee: National Aeronautics and Space Administration
•
Filing: 1977-04-28
•
Granted: 1978-07-11
•
Expires: 1997-04-28
Abstract
Abstract A gas-lubricated bearing employing at least one pad mounted on a rectangular cantilever beam to produce a lubricating wedge between the face of the pad and a moving surface. The load-carrying and stiffness characteristics of the pad are related to the dimensions and modulus of elasticity of the beam. The bearing is applicable to a wide variety of types of hydrodynamic bearings.
Inventors
- 👤 with respect to an invention of Fletcher James C. Administrator of the National Aeronautics and Space Administration
- 👤 Izhak Etsion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:57
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/02; F16C17/03; F16C17/035; F16C17/04; F16C17/06; F16C17/065
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
A gas bearing comprising; first and second elements movable relative to one another and positioned to form a spacing therebetween; and resilient bearing means disposed within the spacing for deflecting in response to a pressure distribution established by the relative movement of the first and second elements, the resilient bearing means including a resilient cantilever beam extending in the direction of said relative movement being rigidly mounted at one end to the first element; and a pad rigidly mounted along a line parallel to its trailing edge to the other end of the cantilever beam and having a substantially smooth surface facing said second element for receiving the load pressure of the bearing, said line being in a plane substantially perpendicular to the direction of said relative movement.
Claim 2
Dependent Claim
128 words
A gas bearing comprising; first and second elements movable relative to one another and positioned to form a spacing therebetween; and resilient bearing means disposed within the spacing for deflecting in response to a pressure distribution established by the relative movement of the first and second elements, the resilient bearing means including a resilient cantilever beam extending in the direction of said relative movement being rigidly mounted at one end to the first element; and a pad rigidly mounted along a line parallel to its trailing edge to the other end of the cantilever beam and having a substantially smooth surface facing said second element for receiving the load pressure of the bearing, said line being in a plane substantially perpendicular to the direction of said relative movement.
Claim 3
Dependent Claim
15 words
The gas bearing recited in claim 1 wherein: the bearing is of the slider type.
Claim 4
Dependent Claim
35 words
The gas bearing recited in claim 1 wherein: the bearing is of the thrust type; the first element comprises a stationary element; and the second element comprises an element rotatable relative to the stationary element.
Claim 5
Dependent Claim
37 words
The gas bearing being recited in claim 1 wherein: the bearing is of the journal type; the first element comprises a bushing having an opening; and the second element comprises a rotatable shaft received within the bushing.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |