Movement sensor

Details Movement sensor Movement sensor

1987-03-09

1988-07-05

Orsino, Jr., Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340568, 340572, 340686, G08B 2100, G08B 1314

Patent

active

047558067

ABSTRACT:
A motion sensor comprises a beam having a level switch mounted thereon in a horizontal position. When the sensor is moved, the beam tilts causing the level switch to activate an alarm or remote device. Also in response to tilting, a motor is energized to move the beam back to its original horizontal position. In a first embodiment, two level switches control one motor. In a second embodiment, one level switch controls two motors. In other embodiments, pendulum type switches are employed.

REFERENCES:
patent: 3879703 (1975-04-01), Bonazoli et al.
patent: 4275391 (1981-06-01), Okamura
patent: 4284983 (1981-08-01), Lent
patent: 4385288 (1983-05-01), Bitko
patent: 4414541 (1983-11-01), Ho
patent: 4450437 (1984-05-01), Ho

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