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:
Feb. 15, 1983
Filed:
Jun. 30, 1981
Applicant:
Inventor:
Dale A Mueller, St. Paul, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D / ;
U.S. Cl.
CPC ...
62156 ; 62155 ;
Abstract
A defrost control system for a reverse cycle refrigeration system wherein the outdoor coil is defrosted when outdoor coil temperature is equal to or less than the product of a preselected constant N.sub.1 and the outdoor air temperature and controller means are provided to calculate a new value of N.sub.1 after each defrost operation, the calculation being based on stabilized values of outdoor air temperature and outdoor coil temperature for clear coil conditions.