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:
Nov. 22, 1983
Filed:
Jan. 08, 1982
Raymond G Wilson, Lincoln Township, Berrien County, MI (US);
Edwin H Frohbieter, Lincoln Township, Berrien County, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A variable capacity binary refrigerant refrigeration apparatus providing improved energy usage efficiency in an operation of a dual evaporator system. One evaporator is used for refrigerating an above-freezing fresh food zone and the other evaporator is used for refrigerating a below-freezing freezer zone. The fluid system includes a rectifier, a separator, and an auxiliary condenser, together with suitable valves for controlling the operation of the apparatus. The system further utilizes control of the cold air circulating fans in effecting the desired improved operation.