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. 13, 1982
Filed:
Jun. 19, 1980
Applicant:
Inventor:
Wilhelm Frank, 7022 Leinfelden, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
165 57 ; 165122 ; 160 26 ; 160127 ;
Abstract
A combined rolling shutter and ventilating box comprises a housing holding the rolling shutter. A ventilating box has horizontal and vertical air duct sections divided into a first duct section part receiving warm air to be exhausted from an interior room and a second duct section part receiving fresh air from the atmosphere. A ventilator exhausts the warm air through the first duct section part and the exhausted warm air is vented to the atmosphere. A fresh air inlet communicates with the second duct section and a ventilator draws the fresh air therethrough. A heat exchanger in the air duct sections extends transversely through the air flow through the first and second duct parts.