Seat belt buckle monitor switch having cooperative circuit

Details Seat belt buckle monitor switch having cooperative circuit Seat belt buckle monitor switch having cooperative circuit

1990-02-13

1992-04-28

Harvey, Jack B.

Electricity: measuring and testing

Electromechanical switching device

200 6158B, G01R 3102, H01H 316

Patent

active

051091992

ABSTRACT:
A seat belt buckle monitor switch has a cooperative circuit for indicating the closed state of a seat belt buckle in a motor vehicle. Due to high-grade monitorability, it has a high sensory reliability. The device is structurally designed such that it allows an operation of additionally provided circuit elements in at least one monitoring current loop. If a contact element is at an erroneous potential due to interruption of a current path outside or inside the switching component, this is detected in the test circuit.

REFERENCES:
patent: 3383671 (1968-05-01), Palos et al.
patent: 3452271 (1969-06-01), Ketter
patent: 4580062 (1986-04-01), MacLaughlin
patent: 4686478 (1987-08-01), Jabs
patent: 4862091 (1989-08-01), Hillebrand

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