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:
Aug. 05, 2003
Filed:
Mar. 16, 2001
Applicant:
Inventors:
Hung M. Pham, Dayton, OH (US);
Richard P. Vogh, III, Marietta, GA (US);
Nagaraj Jayanth, Sidney, OH (US);
Assignee:
Copeland Corporation, Sidney, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 1/700 ;
U.S. Cl.
CPC ...
F25D 1/700 ;
Abstract
A cooling system controller controls the capacity of a variable capacity compressor based upon the temperature of a housing being cooled, the suction pressure of the compressor or both of these criteria. The cooling system controller is capable of controlling either single-evaporator or multiple-evaporator refrigeration systems. The multiple-evaporator systems can have evaporators of similar temperatures or of mixed temperatures. The controller also allows the use of one or more condenser fans that are operated in a lead/lag fashion to control the cooling capability of the system.