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. 02, 2007
Filed:
Apr. 28, 2005
Timothy Dean Swofford, Midlothian, VA (US);
Larry C. Howington, Chesterfield, VA (US);
Arnold M. Stephens, Powhatan, VA (US);
Robert D. Tanner, Chesterfield, VA (US);
Timothy Dean Swofford, Midlothian, VA (US);
Larry C. Howington, Chesterfield, VA (US);
Arnold M. Stephens, Powhatan, VA (US);
Robert D. Tanner, Chesterfield, VA (US);
Dover Systems, Inc., Duluth, GA (US);
Abstract
A defrost system for a temperature controlled storage unit includes an enclosure providing a space for storage of products. A refrigeration system has a supply line and a return line coupled to a cooling element to circulate a refrigerant through the cooling element to provide cooling to the space. A control module initiates a plurality of defrost modes on a predetermined frequency and for a predetermined duration by reducing a flow rate of the refrigerant through the cooling element so that a superheat temperature of the refrigerant in the cooling coil is increased to a predetermined range.