US3700295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball and socket bearing
Assignee: Rexnord Inc
•
Filing: 1971-12-03
•
Granted: 1972-10-24
•
Expires: 1991-12-03
Abstract
Abstract Identical or similar balls are assembled on an arbor and a lowfriction material-lined glass filament reinforced hardened epoxy tube is formed thereover. The outer diameter of the tube is finished and the tube is cut into sections to comprise the sockets or outer races for the balls. The socket or outer race includes reinforcing glass filaments which extend helically from one end face to the other thereof and other filaments which extend helically from one end face to the outer surface thereof.
Inventors
- 👤 Neil W Butzow
- 👤 Bernard Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:59
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C33/208; F16C2208/00; F16C2208/80; F16C2208/82; F16C2220/00; F16C2220/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
An annular socket supporting a ball therein to form a ball and socket bearing, said socket having a spherical inner bearing surface in bearing engagement with the ball, an outer cylindrical surface to fit within a supPorting housing, and parallel end faces; said socket comprising a hardened resin body, a low friction material liner having one side forming said bearing surface, groups of reinforcing filaments extending in opposite helixes within the resin body and from one end face to the other thereof, and overlying groups of parallel reinforcing filaments extending from each end face to the outer surface of the socket, said filaments serving to reinforce the resin against the axial loads applied thereto by the ball.
Claim 2
Dependent Claim
117 words
An annular socket supporting a ball therein to form a ball and socket bearing, said socket having a spherical inner bearing surface in bearing engagement with the ball, an outer cylindrical surface to fit within a supPorting housing, and parallel end faces; said socket comprising a hardened resin body, a low friction material liner having one side forming said bearing surface, groups of reinforcing filaments extending in opposite helixes within the resin body and from one end face to the other thereof, and overlying groups of parallel reinforcing filaments extending from each end face to the outer surface of the socket, said filaments serving to reinforce the resin against the axial loads applied thereto by the ball.
Claim 3
Dependent Claim
19 words
The socket of claim 1 wherein the groups of parallel filaments cross over underlying groups substantially at right angles.
Claim 4
Dependent Claim
108 words
An annular socket supporting a ball to form a ball and socket bearing, said socket having a spherical inner bearing surface in bearing engagement with the ball, an outer cylindrical surface to fit within a supporting housing, and parallel end faces; said socket comprising a hardened resin body, a fabric embedded in said resin and having one side forming said bearing surface, crossed-over inner plies of parallel glass filaments extending in opposite helixes within the resin from one face to the other of the socket, and similarly crossed-over outer plies extending from each face to the outer surface of the socket to reinforce the socket against axial loads.
Claim 5
Dependent Claim
108 words
An annular socket supporting a ball to form a ball and socket bearing, said socket having a spherical inner bearing surface in bearing engagement with the ball, an outer cylindrical surface to fit within a supporting housing, and parallel end faces; said socket comprising a hardened resin body, a fabric embedded in said resin and having one side forming said bearing surface, crossed-over inner plies of parallel glass filaments extending in opposite helixes within the resin from one face to the other of the socket, and similarly crossed-over outer plies extending from each face to the outer surface of the socket to reinforce the socket against axial loads.
References Cited (Backward Citations)
US2908532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |