Patent US4123104A successfully refreshed from Google Patents.
US4123104A
Expired / Lapsed
US
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Headrest for a motor vehicle
Assignee: Daimler Benz AG
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Filing: 1977-09-01
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Granted: 1978-10-31
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Expires: 1997-09-01
Abstract
Abstract A headrest for a motor vehicle in which an inflatable bellows forms the headrest which is provided with elastically yielding drawbands that return the bellows into its folded-together position when the bellows is deflated by withdrawing therefrom the pressure.
Inventors
- 👤 Rudolf Andres
- 👤 Gerhard Busch
- 👤 Werner Heiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:51
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/80; B60N2/806; B60N2/874; B60N2/90; B60N2/914
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
60 words
A headrest for a motor vehicle with an inflatable bellows means which is inflated only in case of need, comprising: inflatable bellows means for forming the headrest itself; means for inflating and deflating the bellows means; and elastically yielding drawband means for operably returning the bellows means into its folded-together position in response to the deflating of the bellows means.
Claim 2
Dependent Claim
60 words
A headrest for a motor vehicle with an inflatable bellows means which is inflated only in case of need, comprising: inflatable bellows means for forming the headrest itself; means for inflating and deflating the bellows means; and elastically yielding drawband means for operably returning the bellows means into its folded-together position in response to the deflating of the bellows means.
Claim 3
Dependent Claim
29 words
A headrest according to claim 1, characterized in that the means for inflating and deflating the bellows means is an air pump which is operable by a valve means.
Claim 4
Dependent Claim
14 words
A headrest according to claim 2, wherein the valve means is a four-way valve.
Claim 5
Dependent Claim
31 words
A headrest according to claim 2, further comprising: an electric motor means for driving the air pump; and a seat contact switch means for selectively turning on the electric motor means.
Claim 6
Dependent Claim
27 words
A headrest according to claim 4, further comprising: an overload switch means for selectively turning off the electric motor means and for simultaneously shifting said valve means.
Claim 7
Dependent Claim
35 words
A headrest according to claim 5, further comprising: a safety valve means for permitting the escape of a part of the air out of the bellows means in response to a sudden strong head impact.
Claim 8
Dependent Claim
30 words
A headrest according to claim 6, further comprising: a base frame means; and a cover means for covering the bellows means when said bellows means is in its folded-together position.
Claim 9
Dependent Claim
20 words
A headrest according to claim 7, further comprising: a spring means for bringing the cover means into its covering position.
Claim 10
Dependent Claim
17 words
A headrest according to claim 8, wherein said air pump operating valve means is a four-way valve.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |