Patent US3602560A successfully refreshed from Google Patents.
US3602560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball and socket joint
Assignee: SKF GmbH
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Filing: 1969-11-25
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Granted: 1971-08-31
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Expires: 1989-11-25
Abstract
Abstract The bearing face of the socket member of a ball and socket joint arrangement carries circular polytetrafluoroethylene discs retained in a cage and radially projecting from the cage for sliding engagement with the bearing face of the ball member of the joint. Lateral spread of the discs is limited by an annular groove in the face of the cage spacedly opposite the ball face about each disc, and also by metal inserts and backing elements of various shapes.
Inventors
- 👤 Manfred Memmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:10
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; F16C33/24; F16C33/26; F16C33/28; F16C2208/00; F16C2208/10; F16C2208/20; F16C2208/30; F16C2208/32; F16C2208/76; F16C2208/78; F16C2226/00; F16C2226/50; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32737; Y10T403/32778
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
A bearing comprising, in combination: a. a first bearing member having a face; b. a second bearing member having a face spacedly opposite the bearing face of said first bearing member; c. a plurality of antifriction elements superposed on the face of one of said bearing members in gliding engagement with the face of the other bearing member, 1. said antifriction elements being of a material having a substantially lower coefficient of friction in contact with said face of the other bearing member than said face of said one bearing member; d. a cage interposed between said bearing members for retaining said elements in substantially fixed respective positions on said face of the one bearing member, respective portions of said elements projecting beyond said cage toward said face of the other bearing member under application of a load on said bearing; and e. limiting means for limiting lateral displacement of the projecting portion of each element between said bearing members.
Claim 2
Dependent Claim
160 words
A bearing comprising, in combination: a. a first bearing member having a face; b. a second bearing member having a face spacedly opposite the bearing face of said first bearing member; c. a plurality of antifriction elements superposed on the face of one of said bearing members in gliding engagement with the face of the other bearing member, 1. said antifriction elements being of a material having a substantially lower coefficient of friction in contact with said face of the other bearing member than said face of said one bearing member; d. a cage interposed between said bearing members for retaining said elements in substantially fixed respective positions on said face of the one bearing member, respective portions of said elements projecting beyond said cage toward said face of the other bearing member under application of a load on said bearing; and e. limiting means for limiting lateral displacement of the projecting portion of each element between said bearing members.
Claim 3
Dependent Claim
44 words
An arrangement as set forth in claim 1, wherein said cage has a face spacedly opposite said face of the other bearing member closely adjacent one of said elements and formed with a groove therein, the walls of said groove constituting said limiting means.
Claim 4
Dependent Claim
25 words
An arrangement as set forth in claim 2, wherein said elements are substantially circular in cross section, and said face and said groove are annular.
Claim 5
Dependent Claim
45 words
An arrangement as set forth in claim 2, wherein said gliding elements are of a material much more resilienT than the material of said retaining member, each gliding element being provided with a stiffening member to prevent compression of said element beyond a predetermined load.
Claim 6
Dependent Claim
32 words
An arrangement as set forth in claim 4, wherein said gliding element consists essentially of a synthetic resin composition, said bearing members essentially consist of metal, and said stiffening member is metallic.
Claim 7
Dependent Claim
48 words
An arrangement as set forth in claim 4, wherein said stiffening member is a metal ring of triangular cross section embedded within said body, one of the sides of the triangle defining a face of said ring in area contact with said face of said other bearing member.
Claim 8
Dependent Claim
21 words
An arrangement as set forth in claim 4, wherein said stiffening member is a metal plate embedded in said gliding element.
Claim 9
Dependent Claim
43 words
An arrangement as set forth in claim 1, wherein said limiting means include a ring member inserted in at least one of said elements and having respective faces in contact with said retaining means and with said face of the other bearing member.
Claim 10
Dependent Claim
37 words
A bearing as set forth in claim 1, wherein said antifriction elements are of resilient material and are received in respective recesses of said cage under compressive stress, each element expanding when released from the corresponding recess.
Claim 11
Dependent Claim
25 words
An arrangement as set forth in claim 4, wherein said stiffening member is a metal plate adhered to the backing surface of the gliding element.
Claim 12
Dependent Claim
22 words
An arrangement as set forth in claim 4, wherein said stiffening member is a metallic compression spring imbedded in said gliding element.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |