Low cost buzzer

Details Low cost buzzer Low cost buzzer

1977-05-31

1979-03-20

Pitts, Harold I.

Communications: electrical

Audible indication

Diaphragm

340387, 340396, 340402, G01K 108, G08B 300

Patent

active

041456882

ABSTRACT:
A buzzer alarm has an electrically insulative housing fabricated of two molded pieces of electrically insulative material with a recessed vibratable diaphragm section constructed as a portion thereof. The buzzer alarm includes cooperating vibrating means and timer means with the vibrating means being carried by a frame that is carried along a wall which is complimentary to another wall which carries a terminal block.

REFERENCES:
patent: 3408645 (1968-10-01), Doggart
patent: 3618080 (1971-11-01), Frey
patent: 3760411 (1973-09-01), Youhanian
patent: 3938143 (1976-02-01), Little
patent: 4003043 (1977-01-01), Little

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