Overshoot compensated thermostat

Details Overshoot compensated thermostat Overshoot compensated thermostat

1979-04-20

1981-08-11

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337370, H01H 3752

Patent

active

042837014

ABSTRACT:
A thermostat assembly to control heat to an iron soleplate, includes a bimetal blade on a soleplate boss responding to the heat thereto to make and break the electric circuit. To this standard construction an improved thermostat assembly uses a slot in the bimetal blade adjacent its free end, the slot extending partially across the blade at right angles to the longitudinal axis with a second compensating blade deforming in the opposite direction and secured to the first blade between the slot and free end with the axes of deformation of the blades oriented at right angles to each other such that the cross slot provides delay in heat conduction so the contacts first open at a lower main blade temperature than subsequent openings to reduce overshooting of the temperature in the iron soleplate.

REFERENCES:
patent: 2249837 (1941-07-01), Lee
patent: 2284383 (1942-05-01), Elmer
patent: 2742547 (1956-04-01), Tsai
patent: 3023287 (1962-02-01), Epstein
patent: 3593253 (1971-07-01), Taylor
patent: 3936792 (1976-02-01), Senor et al.
patent: 4045894 (1977-09-01), Toft et al.

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