US Patent 7757501 Method for controlling a refrigerator appliance

Patent 7757501 was granted and assigned to Whirlpool Corporation on July, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Whirlpool Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7757501

Date of Patent

July 20, 2010

Patent Application Number

11577448

Date Filed

October 10, 2005

Patent Primary Examiner

‌

George Nguyen

Patent abstract

A method for controlling a refrigerator having at least two compartments and actuators adapted to maintain temperatures of said compartments close to predetermined set values comprises a comparison between a signal (CCR) indicative of the cooling request of each compartment and a signal variable according to a predetermined carrier function. This comparison is carried out in a predetermined time interval (TW), said actuators being activated or deactivated on the basis of such comparison that is repeated for each subsequent time interval (TW).