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. 10, 1976
Filed:
Feb. 07, 1975
Sterling Beckwith, Menlo Park, CA (US);
Robert E Vogel, Marshall, MI (US);
William Goyman, Marshall, MI (US);
Kysor Industrial Corporation, Cadillac, MI (US);
Abstract
A multiple curtain, refrigerated display case employing an energy saving air defrost system that, during the first defrost stage, draws defrosting ambient air into the refrigerated air curtain passage from both directions, and during the second defrost stage employs part of the defrost air to form a circulating air curtain over the open front of the case. The case has defrost exhaust fans in the upper rear thereof actuated by a timer simultaneously with deactuation of the guard curtain fans and the refrigeration condensing unit. The circulation fans for the refrigerated air of the case have a total propulsive capacity significantly greater than that of the exhaust fans, such refrigerated air circulation fans being upstream of the refrigeration coils in the refrigerated air curtain passage, and the exhaust fans being downstream of such coils.