Patent US3967907A successfully refreshed from Google Patents.
US3967907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball socket for ball joint
Assignee: TRW Fahrwerksysteme GmbH and Co KG
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Filing: 1975-07-02
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Granted: 1976-07-06
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Expires: 1995-07-02
Abstract
Abstract A plastic ball socket for a grease lubricated ball joint socket, having a hemispherical inner cup composed of thin, hard, elastic material; an outer cup composed of soft elastic material at least partially containing the inner cup and having elongated ribs disposed on the outer surface of the outer cup to support the outer cup in the ball joint socket, spaced apart from the ball joint socket whereby the plastic ball socket may be deformed during use to form grease lubrication grooves between it and an inserted ball.
Inventors
- 👤 Andreas Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:35
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/16; F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0619; F16C11/0623; F16C11/0628; F16C11/0633; F16C11/0638; F16C2326/00; F16C2326/20; F16C2326/24; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32647; Y10T403/32655; Y10T403/32721; Y10T403/32737; Y10T403/32778
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
A plastic ball socket for a grease lubricated ball joint socket into which a ball is to be inserted, comprising: a hemispherical inner cup composed of thin hard, elastic material and having an internal surface adapted at least partially to engage the ball and having an external surface; an outer cup composed of soft elastic material with an inner surface at least partially conforming to and supporting the external surface of said inner cup; and elongated rib means disposed on an outer surface of said outer cup and being operable to support said outer cup in said ball joint socket spaced apart from said ball joint socket, whereby said plastic ball socket may be deformed during use to form grease lubrication grooves between said internal surface and the ball.
Claim 2
Dependent Claim
129 words
A plastic ball socket for a grease lubricated ball joint socket into which a ball is to be inserted, comprising: a hemispherical inner cup composed of thin hard, elastic material and having an internal surface adapted at least partially to engage the ball and having an external surface; an outer cup composed of soft elastic material with an inner surface at least partially conforming to and supporting the external surface of said inner cup; and elongated rib means disposed on an outer surface of said outer cup and being operable to support said outer cup in said ball joint socket spaced apart from said ball joint socket, whereby said plastic ball socket may be deformed during use to form grease lubrication grooves between said internal surface and the ball.
Claim 3
Dependent Claim
19 words
A plastic ball socket as claimed in claim 1, wherein said inner cup is composed of a synthetic polymer.
Claim 4
Dependent Claim
19 words
A plastic ball socket as claimed in claim 1, wherein said outer cup is composed of a synthetic polyer.
Claim 5
Dependent Claim
16 words
A plastic ball socket as claimed in claim 1, wherein said cups are composed of polyacetates.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |