US4504166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the manufacture of a ball joint and ball joint obtained thus
Assignee: DBA SA
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Filing: 1982-01-25
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Granted: 1985-03-12
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Expires: 2002-01-25
Abstract
Abstract According to the invention, a prestress is applied to the bearing bush (17) to obtain a certain frictional torque between the latter and the spherical pivot while the locking ring (18) is placed on the bush (17); the punching tools (28) comprising a double die (30) are then actuated simultaneously in the direction of the socket (15) so as to deform the latter along two approximately circumferential and parallel zones located on both sides of the ring (18) to surround it without displacing it.
Inventors
- 👤 Gerard Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:01
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0685; F16C11/069; B; B23; B23P; B23P11/00; B23P15/00; B23P15/003; F16C11/0619; F16C11/0623; F16C11/0628; B23P2700/00; B23P2700/11; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49648; Y10T29/4965; Y10T29/49652; Y10T29/49654; Y10T29/49657; Y10T29/49663; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/53; Y10T29/53104; Y10T29/53109; Y10T29/53709; Y10T29/53717; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32721; Y10T403/32737; Y10T403/32778; Y10T403/32819; Y10T403/32836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A preloaded ball joint comprising a metal socket having an axis, a spherical pivot accommodated within said socket with a resilient grip bearing bush interposed between the pivot and socket, and a locking ring fixed in said socket, characterized in that said locking ring has a frusto-conical bearing surface in contact engagement with a corresponding frusto-conical end bearing surface of said bush, and a pair of frusto-conical outer surfaces converging outwardly toward a plane transverse to said axis, wherein the adjacent wall end portion of said socket is deformed radially inwardly along two approximately circumferential zones on both sides axially of said plane to surround at least the radially outermost portion of said ring.
Claim 2
Dependent Claim
114 words
A preloaded ball joint comprising a metal socket having an axis, a spherical pivot accommodated within said socket with a resilient grip bearing bush interposed between the pivot and socket, and a locking ring fixed in said socket, characterized in that said locking ring has a frusto-conical bearing surface in contact engagement with a corresponding frusto-conical end bearing surface of said bush, and a pair of frusto-conical outer surfaces converging outwardly toward a plane transverse to said axis, wherein the adjacent wall end portion of said socket is deformed radially inwardly along two approximately circumferential zones on both sides axially of said plane to surround at least the radially outermost portion of said ring.
References Cited (Backward Citations)
FR1523060A
Cited
US3679248A
Cited
US3849009A
Cited
DE2510171A1
Cited
US4089095A
Cited
FR2446694A1
Cited
US4286363A
Cited
US4318627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |