Portable all purpose electrical alarm

Details Portable all purpose electrical alarm Portable all purpose electrical alarm

1982-12-23

1985-03-19

Gill, James J.

Communications: electrical

Condition responsive indicating system

With particular system function

200283, 340573, G08B 1900, H01H 302

Patent

active

045062579

ABSTRACT:
A simple and rugged alarm which is versatile in application includes a battery connected through first and second parallel switches to a light and buzzer alarm. The first switch comprises a first contact formed in a conductive plate and yieldably biased to an open position and a lever actuated cam for rotatably engaging and moving the first contact to a closed position. The second switch includes a second contact formed in the conductive plate which is yieldably biased to a closed position and a retractable pin for supporting the second contact in an open position.

REFERENCES:
patent: 2922150 (1960-01-01), Jezl
patent: 4264892 (1981-04-01), Zonn

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