Refrigeration – Automatic control – By accumulation on freezing surface – e.g. – ice
Patent
1987-05-15
1989-04-25
Tanner, Harry B.
Refrigeration
Automatic control
By accumulation on freezing surface, e.g., ice
62201, 622282, F25C 100
Patent
active
048235563
ABSTRACT:
A method and apparatus for controlling the growth of the solid phase of a substance from around a cooling mechanism, such as the growth of an ice pack in a water cooling system, while also minimizing chances of inaccurate control by referencing the apparent resistance of the liquid that is actually in the system rather than a standard value. The method also provides for a dead-band by monitoring the resistance of the liquid at two roughly adjacent locations.
REFERENCES:
patent: 3496733 (1970-02-01), Parker et al.
patent: 3502899 (1970-03-01), Jones
patent: 3782130 (1974-01-01), Irvine
patent: 4333004 (1982-06-01), Forgue et al.
patent: 4497179 (1985-02-01), Iwans
patent: 4655050 (1987-04-01), Aschberger et al.
Lancer Corporation
Tanner Harry B.
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