Automatic safety and alarming apparatus for construction equipme

Details Automatic safety and alarming apparatus for construction equipme Automatic safety and alarming apparatus for construction equipme

1975-08-27

1977-07-05

Swann, III, Glen R.

Communications: electrical

Selective

Having indication or alarm

340 53, 340267R, B60Q 500, G08B 1900

Patent

active

040343359

ABSTRACT:
Abnormal conditions of the engine and auxiliary machines mounted on a construction equipment are detected by sensors and individually displayed by a plurality of abnormal condition display circuits connected to respective sensors, for the purpose of alarming and displaying any one of the abnormal conditions there are provided a logical sum circuit connected to receive abnormal signals from all abnormal condition display circuits and an alarming circuit energized by the output from the logical sum circuit for giving audible and visible alarms. Further, there are provided a delay circuit connected to receive the output of a sensor provided for the engine system and a deceleration mechanism operated by the output from the delay circuit for decreasing the speed of the engine or stopping it when an abnormal condition occurs in the engine system.

REFERENCES:
patent: 3431555 (1969-03-01), Leone
patent: 3540028 (1970-11-01), Love
patent: 3597729 (1971-08-01), Lopez
patent: 3866166 (1975-02-01), Kerscher et al.
patent: 3893108 (1975-07-01), McBride, Jr. et al.
patent: 3944969 (1976-03-01), Arai et al.
patent: 3949356 (1976-04-01), Fuzzell et al.
patent: 3964018 (1976-06-01), Strait et al.

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