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. 15, 1983
Filed:
Jan. 21, 1981
Fayez F Ibrahim, Niles, MI (US);
Tyler Refrigeration Corporation, Niles, MI (US);
Abstract
A refrigerated display case having a display space and an access opening, reversible fans for circulating air through an inner air conduit and across the access opening between a first outlet and a first inlet in a refrigeration mode to establish a primary air band; a second set of fans for circulating air through a second air conduit and across the access opening adjacent to and outwardly of the inner primary air band between a second outlet and second inlet to establish a secondary air band; and defrost cycle control means for reversing the air flow direction of the primary air band during a defrost cycle while maintaining the air flow direction of the second air band continuously in the same direction during both refrigeration and defrost cycles. The primary band inlet region and secondary band outlet region are so aligned as to cause primary band air flowing out of the inner inlet duct to collide with secondary band air flowing out of the secondary outlet duct to substantially reverse the primary band air flow direction and cause a substantial part of the primary band to flow outside the display case adjacent to and along the front of the case.