Method and apparatus for temperature control in photograph devel

Details Method and apparatus for temperature control in photograph devel Method and apparatus for temperature control in photograph devel

1995-09-19

1998-08-25

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219501, 219508, 219494, H05B 102

Patent

active

057985014

ABSTRACT:
A temperature control system for photograph developer, having a temperature sensor, a heater and a controller which controls the heater in response to the temperature sensor to minimize the initial warm up time of the heater and to regulate the heater to have stable temperature characteristics.

REFERENCES:
patent: 3858141 (1974-12-01), Lackey
patent: 4238672 (1980-12-01), Siess
patent: 4377738 (1983-03-01), Berg

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