Timing pulse generating switch

Details Timing pulse generating switch Timing pulse generating switch

1975-10-22

1977-07-05

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 49, 337339, H01H 6100, H01H 7116

Patent

active

040343278

ABSTRACT:
The invention relates to a timing pulse generating switch assembly, particularly for the monitoring circuit of an oil or gas furnace, having at least one snap switch provided with a contact arm which carries the movable contact. The movable contact arm is fixed with respect to the housing at one end and there is provided a snap system which adjusts the contact arm. The snap system possesses a snap arm which is fixed with respect to the housing at one end and is preferably formed by the contact arm. The snap system includes a snap spring which is articulated to the snap arm and, at its other end, is articulated to a slide that is reciprocatable by a bimetallic member. The switch assembly includes and is influenced by a locking element that is actuated by separate means such as the armature of a relay. The locking element functions to block the movable contact in its rest position as well as in its operating position by using a blocking member which is carried along by the slide.

REFERENCES:
patent: 2498127 (1950-02-01), Kuhn
patent: 3258565 (1966-06-01), Them
patent: 3634801 (1972-01-01), Gould et al.

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