US3749431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal joint construction
Assignee: SWF Auto Electric GmbH
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Filing: 1972-03-22
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Granted: 1973-07-31
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Expires: 1992-03-22
Abstract
Abstract A universal joint includes a socket preferably of a polyurethane plastic material having an exterior surface with an annular groove which is engaged into a slot of a receiving rod with the surface of the rod bounding the slot being engaged in the groove and with the socket being held against rotation by the projection of a web element into a recess of the groove. The joint includes a ball member carried on a pin of a lever or drive crank and which is advantageously formed of a polyurethane plastic and which is held on the pin against rotation by a hexagonal collar portion of the pin and held gainst removal by a snap-fit of a bead portion into a groove defined on the pin. The socket also includes a bellows-like lower extension which extends downwardly over the base of the ball member and engages into an annular groove of the ball member.
Inventors
- 👤 E Schmid
- 👤 A Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:57
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/16; B60S1/18; B60S1/24; F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0604; F16C11/0609; F16C11/0619; F16C11/0623; F16C11/0657; F16C11/0666; F16C11/0671; F16C2326/00; F16C2326/01; F16C2326/09; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32196; Y10T403/32606; Y10T403/32631
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
A universal joint construction comprising a hollow ballreceiving socket having at least one axial end opening, a ball assembly engaged in said socket and extending through the axial end opening and including a central ball pin and a spherical ball member extending over said pin and including a spherical ball portion in said socket and a lower portion extending through said axial end opening and having a groove extending therearound, said socket having a bellows-like skirt terminating in an edge extending into the groove of said lower portion and sealing the end of said socket with said ball member, said pin including an outer end having an annular groove therein, said ball member including a bore into which said pin exTends which has an inwardly projecting head engaged in said annular groove of said pin.
Claim 2
Dependent Claim
135 words
A universal joint construction comprising a hollow ballreceiving socket having at least one axial end opening, a ball assembly engaged in said socket and extending through the axial end opening and including a central ball pin and a spherical ball member extending over said pin and including a spherical ball portion in said socket and a lower portion extending through said axial end opening and having a groove extending therearound, said socket having a bellows-like skirt terminating in an edge extending into the groove of said lower portion and sealing the end of said socket with said ball member, said pin including an outer end having an annular groove therein, said ball member including a bore into which said pin exTends which has an inwardly projecting head engaged in said annular groove of said pin.
Claim 3
Dependent Claim
148 words
A universal joint construction comprising a hollow ball-receiving socket having at least one axial end opening, a ball assembly engaged in said socket and extending through the axial end opening and including a central ball pin and a spherical ball member extending over said pin and including a spherical ball portion in said socket and a lower portion extending through said axial end opening and having a groove extending therearound, said socket having a bellows-like skirt terminating in an edge extending into the groove of said lower portion and sealing the end of said socket with said ball member, said pin including a lower portion having a hexagonal collar, said ball member lower portion having a hexagonal recess engaging around said collar and preventing relative rotation of said ball member relative to said pin, a crank lever connected to said pin and a rod connected around said socket.
Claim 4
Dependent Claim
148 words
A universal joint construction comprising a hollow ball-receiving socket having at least one axial end opening, a ball assembly engaged in said socket and extending through the axial end opening and including a central ball pin and a spherical ball member extending over said pin and including a spherical ball portion in said socket and a lower portion extending through said axial end opening and having a groove extending therearound, said socket having a bellows-like skirt terminating in an edge extending into the groove of said lower portion and sealing the end of said socket with said ball member, said pin including a lower portion having a hexagonal collar, said ball member lower portion having a hexagonal recess engaging around said collar and preventing relative rotation of said ball member relative to said pin, a crank lever connected to said pin and a rod connected around said socket.
References Cited (Backward Citations)
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |