Ice level sensing device for an automatic ice maker in a refrigerator

A device for sensing a level of ice stored in a bin of an automatic ice maker includes a bail arm and an actuator mechanism. The actuator mechanism is constituted by a shape memory alloy that, upon application of a voltage, contracts to move the bail arm to a raised position prior to initiation of a...

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Bibliographische Detailangaben
1. Verfasser:	KOPF BRUCE A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS PRODUCING, WORKING OR HANDLING ICE REFRIGERATION OR COOLING STORING TRANSPORTING UNPACKING WEAPONS
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Beschreibung
Zusammenfassung:	A device for sensing a level of ice stored in a bin of an automatic ice maker includes a bail arm and an actuator mechanism. The actuator mechanism is constituted by a shape memory alloy that, upon application of a voltage, contracts to move the bail arm to a raised position prior to initiation of an ice harvest cycle. After completion of the ice harvest cycle, the voltage is discontinued, allowing the shape memory alloy to relax, causing the bail arm to return to a lowered position. The bail arm includes a sensing member that extends into the bin and, depending upon the level of ice, prevents the bail arm from contacting a sensing switch, temporarily halting ice production.