Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1975-06-19
1976-06-15
Miller, J. D.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
200DIG42, 337 85, 337337, 337355, H01H 7116
Patent
active
039640043
ABSTRACT:
A combined thermostatic switch and tilt switch is disclosed which is of the stack type with slow make and break contacts. A temperature responsive element such as a bimetal actuates a set of contacts and an attitude responsive means such as a swingable pendulum also actuates a set of contacts. These two responsive means may actuate the same set of contacts or may actuate different sets of contacts in various embodiments of the invention, but a second set of contacts is provided in the switch as a standby set of contacts which may be actuated by one of the responsive means in the event that the first set of contacts fails to be actuated, e.g. by being welded together or some other malfunction. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
REFERENCES:
patent: 3201548 (1965-08-01), Mertler
patent: 3236977 (1966-02-01), Huffman
patent: 3452312 (1969-06-01), Bauer
patent: 3609261 (1971-09-01), Rys
patent: 3617665 (1971-11-01), Mook et al.
patent: 3913048 (1975-10-01), Mertler
Bell Fred E.
Miller J. D.
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