Thermostat

Details Thermostat Thermostat

1974-06-28

1976-07-27

Duggan, Donovan F.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337365, 337372, 337380, H01H 3752

Patent

active

039720160

ABSTRACT:
A structurally simple thermostat is disclosed in which a single rivet provides the mounting of all of the switch elements. The switch elements are located by the rivet and by a portion of the contacts substantially spaced from the rivet to minimize the affect of manufacturing tolerances in the positioning of the switch elements. A single terminal element supports the movable contact, provides a terminal extension and closes the switch cavity. The structure is arranged so that ceramic material can be used for the non-metallic parts with a minimum effect created by the relatively loose dimensional tolerances required in the manufacture of ceramic parts. The terminal member is formed with a shallow dish shaped projection which prestresses the rivet assembly to prevent looseness resulting from differential expansion.

REFERENCES:
patent: 2991341 (1961-07-01), Ulanet
patent: 3067306 (1962-12-01), Epstein
patent: 3470518 (1969-09-01), Schmitt

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