Temperature control device for a refrigerating container

Details Temperature control device for a refrigerating container Temperature control device for a refrigerating container

1988-09-19

1991-01-08

Wayner, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62161, 200 46, 200 6181, F25D 2900

Patent

active

049825828

ABSTRACT:
There is provided a temperature control device for a refrigerated container having a plurality of temperature level determining switches for selecting a temperature level. Cut-out portions are provided on the refrigerated container for selectively controlling the temperature level determining switches. A selected temperature level is determined by the selective removal of the cut-out portions from the refrigerated container. A logic circuit coupled to the switches outputs a signal indicative of the selected temperature level. A voltage generating circuit generates a voltage corresponding to the selected temperature level. A comparator compares the selected temperature level with the actual temperature detected by a thermal element in the refrigerated container. A control element controls the operation of the refrigerating apparatus in accordance with an output signal from the comparator.

REFERENCES:
patent: 4399428 (1983-08-01), Hughes et al.
patent: 4646529 (1987-03-01), Hanson
patent: 4738117 (1988-04-01), Takasugi
patent: 4827731 (1989-05-01), Ikeda

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