Patent US3772644A successfully refreshed from Google Patents.
US3772644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seat loading indicator apparatus
Assignee: SWF Auto Electric GmbH
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Filing: 1972-04-10
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Granted: 1973-11-13
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Expires: 1992-04-10
Abstract
Abstract A device for indicating the loading of a seat, particularly a passenger seat in a motor vehicle comprises, a car seat having a resilient spring suspension for supporting a person and a switch for indicating the loading of the seat by the person located adjacent said spring suspension. The spring suspension carries resilient actuating means in the form of a resilient actuating element which is suspended from the horizontally extending portion of the spring suspension at a location underlying the upholstery of the seat and which has an actuator end which is engaged on a resilient actuating element of the switch. The resilient actuating element is movable when a person sits on a seat to cause it to actuate the switch.
Inventors
- 👤 D Hanselmann
- 👤 W Bock
- 👤 H Prohaska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:05
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7094; B60N2/002; B60N2/0021; B60N2/003; B60N2/0032; B60N2210/00; B60N2210/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
206 words
A device for indicating the loading of a seat, particularly a passenger seat in a motor vehicle, comprising a seat having a resilient spring suspension for supporting a person, a switch for indicating the loading of the seat and having a pressure actuated switch button located adjacent said spring suspension, and resilient switch actuating means secured to said spring suspension and having a portion overlying said actuator button and being movable upon loading of said seat and movement of said spring suspension to actuate said switch, said seat including a generally U-shaped spring suspension having a seat covering thereon and having a generally horizontal top portion, a front generally vertical leg portion and a rear generally vertical leg portion, a seat base frame adjacent the front leg portion, said switch being mounted on the base frame, said resilient switch actuating means comprising a resilient member secured to said spring suspension horizontal portion and having a resilient loop extending downwardly inside said seat and forwardly into overlying engagement with said switch button, and a guide overlying said switch and having a forked leg portion, said resilient member having an actuating end extending through between said leg portions and being guided thereby into engagement with said switch button.
Claim 2
Independent Claim
206 words
A device for indicating the loading of a seat, particularly a passenger seat in a motor vehicle, comprising a seat having a resilient spring suspension for supporting a person, a switch for indicating the loading of the seat and having a pressure actuated switch button located adjacent said spring suspension, and resilient switch actuating means secured to said spring suspension and having a portion overlying said actuator button and being movable upon loading of said seat and movement of said spring suspension to actuate said switch, said seat including a generally U-shaped spring suspension having a seat covering thereon and having a generally horizontal top portion, a front generally vertical leg portion and a rear generally vertical leg portion, a seat base frame adjacent the front leg portion, said switch being mounted on the base frame, said resilient switch actuating means comprising a resilient member secured to said spring suspension horizontal portion and having a resilient loop extending downwardly inside said seat and forwardly into overlying engagement with said switch button, and a guide overlying said switch and having a forked leg portion, said resilient member having an actuating end extending through between said leg portions and being guided thereby into engagement with said switch button.
Claim 3
Dependent Claim
49 words
A device for indicating the loading of a seat, according to claim 1, including clamping means on said horizontal portion of said spring suspension holding said resilient actuating member, said resilient actuating member including a rearwardly and downwardly extending portion engaged at the lower end of said rear leg.
Claim 4
Dependent Claim
40 words
A device for indicating the loading of a seat, according to claim 2, including a clamping sleeve secured to said spring suspension rear leg portion at the lower end thereof and carrying the rear end of said resilient actuating member.
Claim 5
Independent Claim
143 words
A device for indicating the loading of a seat, particularly a passenger seat of a motor vehicle, comprising a seat comprising a spring suspension frame of generally U-shaped longitudinal profile having a forward generally vertical leg portion and a rear generally vertical leg portion connected by an intermediate generally horizontal portion and including a base frame adjacent the bottom end of the forward leg portion, a pressure switch mounted on said base frame and having a resilient actuating button, at least one resilient actuating member comprising a rod like element including a generally horizontally extending portion secured to the underside of said horizontal portion of said spring suspension and an actuator end portion overlying said actuating button, guide means for guiding the actuator end of said rod member, said rod member being flexible with flexure of said spring suspension to actuate said switch.
Claim 6
Independent Claim
143 words
A device for indicating the loading of a seat, particularly a passenger seat of a motor vehicle, comprising a seat comprising a spring suspension frame of generally U-shaped longitudinal profile having a forward generally vertical leg portion and a rear generally vertical leg portion connected by an intermediate generally horizontal portion and including a base frame adjacent the bottom end of the forward leg portion, a pressure switch mounted on said base frame and having a resilient actuating button, at least one resilient actuating member comprising a rod like element including a generally horizontally extending portion secured to the underside of said horizontal portion of said spring suspension and an actuator end portion overlying said actuating button, guide means for guiding the actuator end of said rod member, said rod member being flexible with flexure of said spring suspension to actuate said switch.
Claim 7
Dependent Claim
39 words
A device for indicating the loading of a seat, according to claim 4, wherein said rod member includes a downwardly and rearwardly extending portion pivotally connected to the bottom end of said rear leg portion of said spring suspension.
Claim 8
Dependent Claim
54 words
A device for indicating the loading of a seat, according to claim 4, wherein said at least one resilient actuating member comprises two laterally spaced spring rod members underlying said horizontal spring suspension at two laterally spaced locations and having forward ends directed together and terminating in front actuator ends overlying said switch button.
Claim 9
Dependent Claim
33 words
A device for indicating the loading of a seat, according to claim 6, including a clamping sleeve secured to the front ends of said two rod members together adjacent said switch actuating button.
Claim 10
Dependent Claim
48 words
A device for indicating the loading of a seat, according to claim 4, wherein said resilient member comprises a spring rod having a resilient covering thereon and including a loop portion between the horizontal portion secured to said spring suspension and the actuator end overlying said actuating button.
Claim 11
Dependent Claim
42 words
A device for indicating the loading of a seat, according to claim 4, wherein said guide means includes an angle cover plate overlying said button and having two spaced apart leg portions between which said actuator end of said rod member extends.
Claim 12
Dependent Claim
53 words
A device for indicating the loading of a seat, according to claim 4, wherein said resilient actuating member comprises a horizontal portion secured below the horizontal portion of said spring suspension, and engagement portion overlying said actuating button and at least one resilient loop portion between said engaging portion and said horizontal portion.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |