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:
Oct. 24, 1995
Filed:
Dec. 22, 1993
James H Ott, Akron, OH (US);
James P Henderson, Tallmadge, OH (US);
Mark E Anglin, Wadsworth, OH (US);
Novar Electronics Corporation, Barberton, OH (US);
Abstract
A method of controlling a plurality of commonly piped compressors for a refrigeration system having a plurality of refrigeration cases including the steps of sensing a suction pressure of the refrigeration system, determining whether the sensed suction pressure is within a predetermined pressure range, and turning compressors ON or OFF in stages until the suction pressure is within the predetermined pressure range. The method also includes the steps of sensing a case temperature for each of the refrigeration cases if the sensed suction pressure is within the predetermined pressure range and determining whether the sensed case temperature is within a predetermined temperature range. The method further includes the steps of turning selectively the load of the refrigeration cases ON and OFF until the case temperature is within the predetermined temperature range if the sensed case temperature is not within the predetermined temperature range and ending the method if the sensed case temperature is within the predetermined temperature range.