Motion detection device including a pendulum switch

Details Motion detection device including a pendulum switch Motion detection device including a pendulum switch

1975-07-21

1976-06-08

Swann, III, Glen R.

Communications: electrical

Systems

Call station

33353, 200 6145M, G08B 1308, G08B 1700

Patent

active

039626938

ABSTRACT:
A motion detection device is characterized by an array of mutually spaced electrical contacts connected to one terminal of a pair of terminals having a voltage differential established therebetween, an electrically conductive first mass suspended between the pairs of contacts and connected to the other terminal of said pair, and a mass suspended from said first mass for damping pendulous motion of said first mass.

REFERENCES:
patent: 2407122 (1946-09-01), Young
patent: 2618712 (1952-11-01), Moledzky
patent: 2813941 (1957-11-01), Hollmig
patent: 2947830 (1960-08-01), Goss
patent: 3054096 (1962-09-01), Peritz
patent: 3725896 (1973-04-01), Wagner

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