Patent US3774932A successfully refreshed from Google Patents.
US3774932A
Expired / Lapsed
US
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Safety steering
Assignee: Daimler Benz AG
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Filing: 1971-11-23
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Granted: 1973-11-27
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Expires: 1991-11-23
Abstract
Abstract A safety steering for motor vehicles with a deformation member arranged between the steering wheel and the upper end of the steering spindle which together with the hub frame, the hub bottom and the hub cover forms a hollow space in which an inflatable gas cushion is stored; the inflatable gas cushion is automatically inflated when a predetermined deceleration of the vehicle is exceeded, from two containers storing liquified gas which are arranged at substantially mutually oppositely disposed wall portions of the hub frame; a channel leading to the hollow space adjoins each container and a cartridge for the development of evaporating heat projects into each container.
Inventors
- 👤 G Schiesterl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:24
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/203; B62; B62D; B62D1/00; B62D1/02; B62D1/04; B62D1/11; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692; Y10T137/1759
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
158 words
A safety steering system for motor vehicles including a steering wheel comprising: a hub body means, a hub bottom disposed on the lower end of said body means, a hub cover means disposed on the upper end of said hub body means, said hub body means, hub bottom and hub cover means defining a hollow space, a deformation member disposed in said hollow space, an inflatable gas cushion means disposed in a portion of said hollow space above said deformation member inflatable upon a predetermined deceleration of the vehicle, a gas producing means including two tank means for liquified gas disposed approximately at mutually opposite portions of said hub body means outside of said hollow space, channel means in said hub body means for communicating with said hollow space and cartridge means for development of evaporating heat into each of said tank means whereby said gas cushion means is forced out of said hollow space upon inflation thereof.
Claim 2
Dependent Claim
158 words
A safety steering system for motor vehicles including a steering wheel comprising: a hub body means, a hub bottom disposed on the lower end of said body means, a hub cover means disposed on the upper end of said hub body means, said hub body means, hub bottom and hub cover means defining a hollow space, a deformation member disposed in said hollow space, an inflatable gas cushion means disposed in a portion of said hollow space above said deformation member inflatable upon a predetermined deceleration of the vehicle, a gas producing means including two tank means for liquified gas disposed approximately at mutually opposite portions of said hub body means outside of said hollow space, channel means in said hub body means for communicating with said hollow space and cartridge means for development of evaporating heat into each of said tank means whereby said gas cushion means is forced out of said hollow space upon inflation thereof.
Claim 3
Dependent Claim
15 words
A safety steering system according to claim 1, wherein only two tank means are used.
Claim 4
Dependent Claim
35 words
A safety steering system according to claim 1, including a hollow netting means for retaining said inflatable gas cushion means in said hollow space, said netting means including a netting cover of large-mesh, non-metallic fabric.
Claim 5
Dependent Claim
29 words
A safety steering system according to claim 1, including a diaphragm means for closing said tank means with respect to the corresponding channel means leading to said hollow space.
Claim 6
Dependent Claim
29 words
A safety steering system according to claim 4, wherein a knife edge means is provided and disposed in the part of the channel means opposite the respective diaphragm means.
Claim 7
Dependent Claim
29 words
A safety steering system according to claim 1, wherein the steering wheel includes two pairs of spokes, one tank means each being arranged between a respective pair of spokes.
Claim 8
Dependent Claim
29 words
A safety steering system according to claim 6, including a diaphragm means for closing said tank means with respect to the corresponding channel means leading to said hollow space.
Claim 9
Dependent Claim
29 words
A safety steering system according to claim 7, wherein a knife edge means is provided and disposed in the part of the channel means opposite the respective diaphragm means.
Claim 10
Dependent Claim
35 words
A safety steering system according to claim 8, including a hollow netting means for retaining said inflatable gas cushion means in said hollow space, said netting means including a netting cover of large-mesh, non-metallic fabric.
Claim 11
Dependent Claim
15 words
A safety steering system according to claim 9, wherein only two tank means are used.
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |