Earthquake alarm assembly

Details Earthquake alarm assembly Earthquake alarm assembly

1986-09-02

1988-08-16

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340566, 340540, 200 6145R, 200 6148, 200 52R, 181122, 367182, G08B 2100

Patent

active

047647620

ABSTRACT:
An alarm assembly specifically designed to warn sleeping occupants within a dwelling structure as to the occurrence of earth tremors such as those caused by relatively serious earthquakes wherein an activating member is movably positioned relative to a supporting base and is sensitive to such earth tremors to the extent of being displaced within a predetermined range of movement and into activating engagement with a switching assembly also mounted on said base to cause operation and/or activation of preferably an audio alarm to awaken the sleeping occupants.

REFERENCES:
patent: 3649787 (1972-03-01), Kasabian
patent: 3678763 (1972-07-01), Brooks et al.
patent: 4221940 (1980-09-01), Roth
patent: 4262289 (1981-04-01), Rivera
patent: 4297690 (1981-10-01), Baker
patent: 4381504 (1983-04-01), Bitko

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