US3760135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat belt safety switch with overcenter snap acting contact engaging belt actuating means
Assignee: ZF International UK Ltd
•
Filing: 1972-04-11
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Granted: 1973-09-18
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Expires: 1992-04-11
Abstract
Abstract An electrical switch for use with a vehicle safety harness has an insulating body through which a web of the harness passes. The body contains a resilient moving contact spring engageable with a hole in the web. The contact spring is biased by its own overcentering snap action to either of two stable positions, in one of which it engages a fixed contact to complete a circuit.
Inventors
- 👤 L Nevett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/48; H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/10; H01H15/14; B60R2022/4808; B60R2022/4825
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
A switch comprising a body having a pasage therethrough to receive a belt, a resiliently deformable movable contact member mounted in the body and having a portion projecting into said passage for engagement by an abutment on a belt extending through said passage, means within the body for locating said member in either one of two positions between which it can be displaced by movement of said abutment through said passage in opposite directions respectively, said member being reiliently deformed by said body during said movement so as to provide an over-centering action, whereby each said position is a stable position, and fixed contact means in the body engaged by said contact member in one of its stable positions.
Claim 2
Dependent Claim
119 words
A switch comprising a body having a pasage therethrough to receive a belt, a resiliently deformable movable contact member mounted in the body and having a portion projecting into said passage for engagement by an abutment on a belt extending through said passage, means within the body for locating said member in either one of two positions between which it can be displaced by movement of said abutment through said passage in opposite directions respectively, said member being reiliently deformed by said body during said movement so as to provide an over-centering action, whereby each said position is a stable position, and fixed contact means in the body engaged by said contact member in one of its stable positions.
Claim 3
Dependent Claim
19 words
A switch as claimed in claim 1 in which said movalbe contact member is formed of resilient conductive wire.
Claim 4
Dependent Claim
26 words
A switch as claimed in claim 2 in which said wire is of generally V-shaped configuration said projecting portion being at the apex of the V.
Claim 5
Dependent Claim
25 words
A switch as claimed in claim 1 in which said body has a resilient bowed spring portion with which said movable contact member is engaged.
Claim 6
Dependent Claim
32 words
A switch as claimed in claim 1 in combination with a seat belt passing through said passage in said body and having an abutment thereon for co-acting with said movable contact members.
Claim 7
Dependent Claim
23 words
A switch and seat belt combination as claimed in claim 5 in which said abutment is formed by an aperture in said belt.
Claim 8
Dependent Claim
24 words
A switch and seat belt combination as claimed in claim 5 in which said abutment is formed by a plate attached to said belt.
Claim 9
Dependent Claim
23 words
A switch and seat belt combination as claimed in claim 5 in which said abutment is a metal staple of shallow V-shaped configuration.
References Cited (Backward Citations)
US2868914A
Cited
US3381268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |