Power door lock interlock circuit

Details Power door lock interlock circuit Power door lock interlock circuit

1988-06-24

1990-01-30

Orsino, Joseph A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

180286, B60Q 500

Patent

active

048976326

ABSTRACT:
The power door lock interlock circuit senses the presence of an ignition key in the ignition and also senses when a door is open. When these conditions are met, the power door lock is placed in an interlock condition whereby pressing the power door lock button causes the horn to sound instead of locking the doors. The circuit is thus useful in preventing the driver from accidentally leaving the ignition key in the ignition and accidentally locking all doors. All doors may be unlocked in the usual fashion and all doors may be locked in the usual fashion provided the interlock condition has not been met.

REFERENCES:
patent: 4223296 (1980-09-01), Kim et al.
patent: 4427967 (1984-01-01), Maiocco
patent: 4428024 (1984-01-01), Mochida et al.
patent: 4572320 (1986-02-01), Robbins, Jr.
patent: 4593544 (1986-06-01), Claar et al.
patent: 4709777 (1987-12-01), Metz

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