Apparatus for preventing operation of machinery by one who is in

Details Apparatus for preventing operation of machinery by one who is in Apparatus for preventing operation of machinery by one who is in

1983-03-24

1986-09-23

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340576, 180272, B60Q 100, G08B 2300

Patent

active

046138455

ABSTRACT:
An apparatus for preventing the operation of machinery such as a motor vehicle by an operator who is intoxicated, such apparatus including an alcohol sensor and a proximity sensor located in the control area of the machinery.

REFERENCES:
patent: 3103655 (1963-09-01), Jones
patent: 3815087 (1974-06-01), Hirano
patent: 3831707 (1974-08-01), Takeuchi
patent: 3855573 (1974-12-01), Honda et al.
patent: 4030037 (1977-06-01), Tanaka et al.
patent: 4103293 (1978-07-01), La Forge, Jr.
patent: 4117467 (1978-09-01), San

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