Temperature responsive snap acting control assembly, device usin

Details Temperature responsive snap acting control assembly, device usin Temperature responsive snap acting control assembly, device usin

1997-08-28

1998-09-15

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337111, 337343, 337102, 337107, 337113, 337298, H01H 3752, H01H 3754, H01H 3772

Patent

active

058085394

ABSTRACT:
A snap acting thermostatic disc assembly having a thermostatic disc element (20) responsive both to current and to ambient temperature is provided with an electrical contact (22) on a face surface on the disc element at one end thereof and a weld slug (24) at an opposite end of the disc element and has a fulcrum member (28, 28', 28") on the opposite face surface of the disc element in alignment with the weld slug. The fulcrum member is arranged to move the bending location of the disc element member away from the heat affected zone of the thermostatic metal caused by welding. In a second embodiment the snap acting disc element is used as an ambient temperature responsive control member.

REFERENCES:
patent: 4458231 (1984-07-01), Senor
patent: 4476452 (1984-10-01), D'Entremont
patent: 5206622 (1993-04-01), Lattari
patent: 5402099 (1995-03-01), Ballard et al.
patent: 5555766 (1996-09-01), Johnson et al.

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