Temperature control device

Details Temperature control device Temperature control device

1992-11-27

1994-10-18

Ford, John K.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 26, 165 30, 236 46F, 236 78D, 236 78A, 425144, 264 406, F25B 2900

Patent

active

053559380

ABSTRACT:
A temperature control device with high accuracy and stability comprising a heating device and a cooling device which are controlled by separate control circuits for performing proportional control, integral control, derivative control and the like. A ratio of energy supply periods to predetermined control periods is thereby varied, on the basis of a controlled variable calculated from direction, size, change velocity and the like of deviation of actual temperature of a controlled medium from desired set temperature so as to control heating and cooling energy supplies for the heating and cooling devices. The heating energy and cooling energy supplies for the heating and cooling devices can be separately controlled by means of different proportional bands.

REFERENCES:
patent: Re31903 (1985-06-01), Faillace
patent: 3229754 (1966-01-01), Hoag
patent: 4272466 (1981-06-01), Harris
patent: 4548259 (1985-10-01), Tezuka et al.
patent: 4784213 (1988-11-01), Eager et al.
patent: 4843576 (1989-06-01), Smith et al.

Affiliated with

Also associated with

Rating

Temperature control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2366129