Patent US3757067A successfully refreshed from Google Patents.
US3757067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive vehicle switch device for indicating the presence of a load on the seat of an
Assignee: G RAU GmbH and Co KG
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Filing: 1972-04-13
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Granted: 1973-09-04
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Expires: 1992-04-13
Abstract
Abstract The switch device is useful with a resilient automotive seat having a supporting frame and including a spring suspension supporting upholstery covered by a seat cover. A band spring extends transversely of the seating surface of the seat, in the form of an upwardly extending arch. A support is mounted on the band spring at the top of the arch, and carries a pressure switch having an actuating member. A pressure plate on the actuating member engages the underside of the spring suspension or the seating surface. A bearing bush is secured to the band spring and receives a bearing connected to the pressure switch so that the pressure plate, secured to the switch actuator, can adapt itself to inclinations of the seating surface without the actuating member of the pressure switch being unequally loaded.
Inventors
- 👤 D Eberle
- 👤 D Hanselmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/002; B60N2/0021; B60N2/003; B60N2/0032; B60N2210/00; B60N2210/40; B60N2210/46; B60R; B60R22/00; B60R22/48; B60R2022/4808; B60R2022/4858
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
96 words
A switch device, for indicating the presence of a load on the seating surface of a resilient automotive vehicle seat having a supporting frame, said switch device comprising, in combination, a spring-mounted support secured to said frame; a pressure switch having a rectilinearly movable member; a pressure plate on said actuating member engaging the underside of said seating surface; and articulated means mounting said switch on said support for pivotal movement about said support whereby said pressure plate can conform to uneven loading of said seating surface while assuring rectilinear movement of said actuating member thereby.
Claim 2
Dependent Claim
96 words
A switch device, for indicating the presence of a load on the seating surface of a resilient automotive vehicle seat having a supporting frame, said switch device comprising, in combination, a spring-mounted support secured to said frame; a pressure switch having a rectilinearly movable member; a pressure plate on said actuating member engaging the underside of said seating surface; and articulated means mounting said switch on said support for pivotal movement about said support whereby said pressure plate can conform to uneven loading of said seating surface while assuring rectilinear movement of said actuating member thereby.
Claim 3
Dependent Claim
108 words
A switch device, for indicating the presence of a load on the seating surface of a resilient automotive vehicle seat having a supporting frame, said switch device comprising, in combination, a spring-mounted support secured to said frame; a pressure switch mounted on said support and having an actuating member; a pressure plate on said actuating member engaging the underside of said seating surface; said support being mounted on a band spring having its opposite ends engaged on respective opposite sides of said supporting frame; a bearing connected to said pressure switch; and a bearing bush connected to said band spring; said bearing being journalled in said bearing bush.
Claim 4
Dependent Claim
108 words
A switch device, for indicating the presence of a load on the seating surface of a resilient automotive vehicle seat having a supporting frame, said switch device comprising, in combination, a spring-mounted support secured to said frame; a pressure switch mounted on said support and having an actuating member; a pressure plate on said actuating member engaging the underside of said seating surface; said support being mounted on a band spring having its opposite ends engaged on respective opposite sides of said supporting frame; a bearing connected to said pressure switch; and a bearing bush connected to said band spring; said bearing being journalled in said bearing bush.
Claim 5
Dependent Claim
21 words
A switch device, as claimed in claim 2, wherein said bearing and said bearing bush extend transversely of the seating surface.
Claim 6
Dependent Claim
30 words
A switch device, as claimed in claim 2, including a base plate having bent portions forming a recess for said bearing; said pressure switch being secured to said base plate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |