Automatic ice making machine

Refrigeration – Time or program actuator – Congelation product maker

Patent

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Details

62349, F25C 100

Patent

active

046191178

ABSTRACT:
In an automatic ice making machine which comprises a freezing chamber formed to define a plurality of open bottom freezing cells, a water plate provided under the freezing chamber for supplying water to be frozen to by spraying the same into the freezing cells, a water tank provided under the water plate for storing a necessary amount of water to be frozen for one freezing cycle, a water inlet valve connected to a feed pipe for supplying water to the water tank, and a water inlet valve controlling timer circuit for controlling the opening and closing of the water inlet valve, and wherein during a defrosting operation, the water plate and the water tank are caused to be inclined downwardly so as to discharge ice cubes the water inlet valve controlling timer circuit comprises a first means for permitting the water inlet valve to open for a first set period of time, a second means for permitting the water inlet valve to open for a second set period of time which is shorter than the first set period of time, and a changeover means which selects the first means only during an initial freezing cycle and switches to the second means during the second and subsequent freezing cycles. The present automatic ice making machine can perform economical freezing operations with such advantages that an insufficient or excessive supply of water to be frozen is not incurred and that ice cubes formed are of proper form, weight, and the like.

REFERENCES:
patent: 3339375 (1967-09-01), Fox
patent: 3779032 (1973-12-01), Nichols
patent: 3964270 (1976-06-01), Dwyer

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