초록 ▼

A slab-type ice maker apparatus wherein a slab of ice is formed on an inclined evaporator plate by the flowing of water over the upper surface of the refrigerated plate. A control is provided for sensing the temperature of the evaporator plate so as to determine when the thickness of the ice slab re

A slab-type ice maker apparatus wherein a slab of ice is formed on an inclined evaporator plate by the flowing of water over the upper surface of the refrigerated plate. A control is provided for sensing the temperature of the evaporator plate so as to determine when the thickness of the ice slab reaches a minimal preliminary thickness and continuing the ice slab formation for a preselected period of time subsequent to that determination to provide the completed final thickness slab. The thermally responsive sensing structure is mounted to the underside of the evaporator plate for improved sensing operation. The rate of flow of the water is reduced subsequent to the determination of the formation of the minimal thickness slab for improved efficiency in completing the formation of the final slab. Sensing structure is provided for determining the transfer of the ice slab to a slab dividing grid from the refrigerated plate. A subsequent ice making cycle is initiated a preselected period of time after termination of a previous ice making cycle notwithstanding a failure of the ice slab to move fully onto the dividing grid. The control requires a signal indicating the end of the ice forming cycle as well as a signal from the level sensing elements to effect a termination of the ice maker operation.

대표청구항 ▼

In an ice maker having a refrigerated ice-forming plate and means for flowing water in heat transfer association with said plate to build up a layer of ice thereon, the improvement comprising: sensing means for sensing the building of the ice layer to a first preselected initial thickness; and timer

In an ice maker having a refrigerated ice-forming plate and means for flowing water in heat transfer association with said plate to build up a layer of ice thereon, the improvement comprising: sensing means for sensing the building of the ice layer to a first preselected initial thickness; and timer control means for changing the rate of ice layer formation while causing continued flowing of the water for a preselected period of time subsequent to said sensing means sensing said preselected initial thickness on said plate thereby to provide an improved controlled increase of the thickness of the ice layer to a second, desired, final thickness.