Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1985-08-12
1986-11-18
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 48, 34 53, F26B 2110
Patent
active
046227598
ABSTRACT:
A control system for a clothes dryer comprises an exhaust temperature detector, a comparator for outputting a signal when either the exhaust temperature or the rate of change in exhaust temperature attains a value higher than a predetermined value, a first timer for counting the time elapsed from the start of operation up until the generation of the signal from the comparator, a calculator for determining the time, during which an electric power is subsequently supplied to a heater, in correspondence to the time counted by the first timer, a temperature adjustment capable of generating, when the exhaust temperature is higher than the predetermined value, an output signal necessary to cause a first control to interrupt the supply of the electric power to the heater, a second timer for counting the length of time determined by the calculator, and a second control operable in response to the output from the second timer for deenergizing both the heater and the motor.
REFERENCES:
patent: 4267643 (1981-05-01), Haried
patent: 4286391 (1981-09-01), Gerry
patent: 4412389 (1983-11-01), Kruger
Abe Syuzi
Ito Shin'ichi
Matsushita Electric - Industrial Co., Ltd.
Schwartz Larry I.
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