Electricity: circuit makers and breakers – Electric switch details – Contact
Patent
1994-03-29
1995-01-10
Cusick, Ernest G.
Electricity: circuit makers and breakers
Electric switch details
Contact
200 6C, 200239, 200329, 200322, H01H 106
Patent
active
053809661
ABSTRACT:
A housing to accommodate an alarm conducting clip is made of electrically insulating material having a small aperture at one end for an electric cord passing therethrough, a large aperture at opposite end having a passage formed in-between the apertures adapted to receive a pair of copper plates at inner top and bottom portions, respectively, and a pair of slanting slots at respective walls adapted to receive an actuated rod which is adapted to press a clip to close or to open at its free ends. The clip is formed in a V-shaped profile having the closed end inserted into the housing through the large aperture with the opposite free ends protruding therefrom. The constantly open free ends engage the two copper plates, respectively, that forms a closed circuit of the alarm. The free ends will be forced to close by the activating rod and thus disengage from the two copper plates and forming an open circuit of the alarm, thereafter.
REFERENCES:
patent: 3573408 (1971-04-01), Farrell
patent: 3622729 (1971-11-01), Ohno
patent: 3999024 (1977-02-01), Manquandt
patent: 4007348 (1977-02-01), Van Son et al.
patent: 4010339 (1977-03-01), Owen et al.
patent: 4453060 (1984-06-01), Kim
patent: 5013877 (1991-05-01), Jervis
patent: 5199554 (1993-04-01), Kano et al.
Cusick Ernest G.
Klein David I.
Rosenberg Morton J.
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