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:
May. 31, 1977
Filed:
May. 17, 1976
Yoshitaka Aokage, Kawasaki, JA;
Yoshio Yamana, Kawasaki, JA;
Abstract
An open show case of cold-air-circulation type having a front access opening, a passage with a cooler and an air fan for circulating cold air therethrough and forming a cold air curtain across the access opening, and at least one other air passage with an air fan for circulating air and forming another protective layer of air curtain outside of the cold air curtain is defrosted by controllably operating the fans respectively in mutually adjacent air passages to blow air in mutually opposite directions thereby to cause air to flow in short-circuited flow at passage openings at the access opening, whereby air ejected from one passage at the access opening is immediately sucked into the adjacent passage without crossing the access opening, thereby to draw in warm outside air into the cold air passage and thereby to accomplish defrosting.