The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 1993
Filed:
Oct. 24, 1991
Giampiero Santacatterina, Sangiano, IT;
Whirlpool International B.V., Veldhoven, NL;
Abstract
A device for controlling the operation of a refrigeration appliance such as a domestic refrigerator consists of a circuit (2) comprising a plurality of resistive elements (3, 4, 5, 6) for generating reference signals (V.sub.A) to be compared in a comparator (18) with analog signals (V.sub.R) originating from a plurality of temperature sensors (21). The resistors have adjustable characteristics and are activated sequentially by a sequencer circuit (16) which also controls the supply of data (V.sub.C) derived from said comparisons into a memory (26, 27, 28). The sequencer circuit is connected to a control unit (35) for controlling the refrigeration appliance. The control unit reads the data from the memory at the end of each sequence of comparisons between the reference signals (V.sub.A) and the signal (V.sub.R) from the sensors, and on the basis of the data read out operate on the usual components (42, 43, 44) of the refrigeration appliance which generate and control its temperature.