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:
Jul. 03, 1984
Filed:
Dec. 07, 1982
Applicant:
Inventor:
Egbert deVries, Kettering, OH (US);
Assignee:
Quad Environmental Technologies Corporation, Highland Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D / ; F24F / ; F25D / ;
U.S. Cl.
CPC ...
98-15 ; 62273 ; 98 31 ;
Abstract
The insulated walls of a refrigerator chamber are pressurized so as to maintain a pressure within the insulated interior of the walls that is slightly higher than the exterior ambient air pressure. This is accomplished by means of small fans or the like blowing outwardly and mounted on the interior of the walls.