Patent US3724825A successfully refreshed from Google Patents.
US4448091A
Expired / Lapsed
US
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Single-spoke steering wheel
Assignee: Karl Schmidt GmbH
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Filing: 1980-11-24
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Granted: 1984-05-15
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Expires: 2000-11-24
Abstract
Abstract In a steering wheel covered with a layer of plastic material, the steering wheel hub is connected to the steering wheel rim by a steering wheel spoke. To reduce the manufacture expenditure, the spoke is embedded in the steering wheel hub consisting of an aluminum pressure diecasting and the spoke as well as the portion of the steering wheel rim to which the spoke is connected are embedded by a pressure-diecast layer.
Inventors
- 👤 Wolfgang Bauer
- 👤 Werner Grosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:58
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/02; B62D1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49488; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
In a steering wheel having a steering heel hub, a single steering wheel spoke joined to the steering wheel hub and extending in a vertical center plane of the steering wheel, and a steering wheel rim joined to the steering wheel spoke, the improvement wherein: the hub comprises an aluminum pressure diecasting, one end of the spoke is embedded in the steering wheel hub and a pressure-diecast layer surrounds the spoke and a portion of the steering wheel rim to which the spoke is connected, wherein the pressure-diecast layer has circumferential indentations therealong forming breaking points.
Claim 2
Dependent Claim
96 words
In a steering wheel having a steering heel hub, a single steering wheel spoke joined to the steering wheel hub and extending in a vertical center plane of the steering wheel, and a steering wheel rim joined to the steering wheel spoke, the improvement wherein: the hub comprises an aluminum pressure diecasting, one end of the spoke is embedded in the steering wheel hub and a pressure-diecast layer surrounds the spoke and a portion of the steering wheel rim to which the spoke is connected, wherein the pressure-diecast layer has circumferential indentations therealong forming breaking points.
Claim 3
Dependent Claim
15 words
The steering wheel according to claim 1, wherein the spoke comprises two elongated spoke elements.
Claim 4
Dependent Claim
18 words
The steering wheel according to claim 2, further comprising a pressure-diecast web interconnecting the two elongated spoke elements.
Claim 5
Dependent Claim
15 words
The steering wheel according to claim 2, wherein the two elongated spoke elements are parallel.
References Cited (Backward Citations)
US1411239A
Cited
US2041739A
Cited
FR1023104A
Cited
FR1151080A
Cited
US4047450A
Cited
US4011643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |