US4718779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed compound bearing
Assignee: O&S AMERICA LLC
•
Filing: 1986-09-02
•
Granted: 1988-01-12
•
Expires: 2006-09-02
Abstract
Abstract A compound bearing consisting of an outer and an inner member movable relative to each other and between which are disposed load carrying annular members. The load carrying annular members comprise a pair of deformable plastic rings held between the outer and inner members under compression, and a metallic ring insert disposed between and separating the two deformable rings. The outer member is formed of two cup-shaped tubular members press-fitted over the metallic ring insert.
Inventors
- 👤 William H. Trudeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:09
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16C23/00; F16C23/02; F16C23/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
247 words
A bearing comprising an inner member having a peripheral surface of a first regular predetermined contour, an outer member having an inner surface of a second regular predetermined contour, a metallic ring insert disposed between said peripheral surface of said inner member and said inner surface of said outer member, said ring insert having an inner surface generally conforming to said peripheral surface of said inner member and a peripheral surface generally conforming to and having a first predetermined dimension slightly larger than said inner surface of said outer member, a pair of resiliently deformable rings, each of said pair of rings disposed on one side of said ring insert, said outer member comprising two generally cup-shaped members, each of said cup-shaped members having a tubular portion forming said inner surface of said second predetermined contour and having a radially inwardly directed flange at one end, said second predetermined contour of said two cup-shaped members having a second predetermined being dimension smaller than said first predetermined dimension of said peripheral surface of said ring insert, said pair of two cup-shaped members being press-fitted over said ring insert in fixedly abutting contact whereby the flange of each of said cup-shaped members holds each of said deformable rings under compression such as to firmly engage each of said deformable rings with a portion of said peripheral surface of said inner member, a portion of said inner surface of said outer member and a lateral surface of said ring insert.
Claim 2
Dependent Claim
247 words
A bearing comprising an inner member having a peripheral surface of a first regular predetermined contour, an outer member having an inner surface of a second regular predetermined contour, a metallic ring insert disposed between said peripheral surface of said inner member and said inner surface of said outer member, said ring insert having an inner surface generally conforming to said peripheral surface of said inner member and a peripheral surface generally conforming to and having a first predetermined dimension slightly larger than said inner surface of said outer member, a pair of resiliently deformable rings, each of said pair of rings disposed on one side of said ring insert, said outer member comprising two generally cup-shaped members, each of said cup-shaped members having a tubular portion forming said inner surface of said second predetermined contour and having a radially inwardly directed flange at one end, said second predetermined contour of said two cup-shaped members having a second predetermined being dimension smaller than said first predetermined dimension of said peripheral surface of said ring insert, said pair of two cup-shaped members being press-fitted over said ring insert in fixedly abutting contact whereby the flange of each of said cup-shaped members holds each of said deformable rings under compression such as to firmly engage each of said deformable rings with a portion of said peripheral surface of said inner member, a portion of said inner surface of said outer member and a lateral surface of said ring insert.
Claim 3
Dependent Claim
14 words
The bearing of claim 1 wherein said deformable rings are made of fluorocarbon material.
Claim 4
Dependent Claim
13 words
The bearing of claim 2 wherein said ring insert is made of steel.
Claim 5
Dependent Claim
25 words
The bearing of claim 3 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 6
Dependent Claim
25 words
The bearing of claim 2 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 7
Dependent Claim
11 words
The bearing of claim 2 wherein said fluorocarbon material is polytetrafluoroethylene.
Claim 8
Dependent Claim
13 words
The bearing of claim 6 wherein said ring insert is made of steel.
Claim 9
Dependent Claim
25 words
The bearing of claim 7 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 10
Dependent Claim
25 words
The bearing of claim 6 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 11
Dependent Claim
14 words
The bearing of claim 1 wherein said deformable rings are made of UHMW polymer.
Claim 12
Dependent Claim
13 words
The bearing of claim 10 wherein said ring insert is made of steel.
Claim 13
Dependent Claim
25 words
The bearing of claim 11 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 14
Dependent Claim
25 words
The bearing of claim 10 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 15
Dependent Claim
13 words
The bearing of claim 1 wherein said ring insert is made of steel.
Claim 16
Dependent Claim
25 words
The bearing of claim 14 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
Claim 17
Dependent Claim
25 words
The bearing of claim 1 wherein the peripheral surface of said inner member and the inner surface of said ring insert are conforming spherical surfaces.
References Cited (Backward Citations)
GB204835A
Cited
US3589781A
Cited
US3806158A
Cited
DE2410032A1
Cited
GB2020377A
Cited
US4331367A
Cited
US4620805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |