Refrigeration – Processes – Congealing flowable material – e.g. – ice making
Patent
1995-08-30
1996-12-10
Tapolcai, William E.
Refrigeration
Processes
Congealing flowable material, e.g., ice making
62347, F25C 112
Patent
active
055820182
ABSTRACT:
A method for preventing the formation of icy slush within the sump of an ice maker. The method includes the steps of monitoring the temperature of the water being circulated through the ice maker and detecting when the temperature reaches about 32.degree. F. When the water reaches about 32.degree. F., the water pump is turned-off to allow residual water on evaporator plates of the ice maker to freeze and form ice crystals thereon. The water pump is turned-off for a predetermined period of time sufficient to allow the residual water remaining on the evaporator plates to freeze, which is preferably about 40 seconds, before it is turned back on. Thereafter, circulating water gradually freezes to the ice crystals formed on the evaporator plates. This prevents the water in the sump from cooling below about 32.degree. F. which would cause an icy slush to form in the sump. The above cycle is repeated after ice is harvested from the evaporator plates.
REFERENCES:
patent: 4785641 (1988-11-01), McDougal
patent: 4884413 (1989-12-01), Quandt et al.
patent: 4907415 (1990-03-01), Stewart, Jr. et al.
patent: 5402650 (1995-04-01), Stewart, Jr.
Allison Matt W.
Black William J.
McKinney Mark A.
Scotsman Group, Inc.
Tapolcai William E.
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