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:
Sep. 27, 1977
Filed:
Feb. 11, 1976
Julius Maus, Stuttgart, DT;
Abstract
A ventilating device for mounting on a wall or support frame which has an air flow passage therethrough comprises a housing of generally rectangular or block shaped form. The housing has a back wall which is mounted on brackets secured to the mounting wall and which includes an air inlet aligned with the air passage defined through the mounting wall. An insulation layer is secured to the top and bottom walls of the housing and to the cover. When the cover is closed the cover layer insulation fits between the top and bottom layers and the three layers define a tortuous or meandering flow path for the air from the inlet to the outlet which is defined at the front end of the housing opposite to the rear wall. The outlet is closed by the cover which has an adjustable register and the apparatus advantageously includes a fan arranged to draw air in through the inlet and circulate it through the tortuous path between the insulations to the outlet for flow out through the register.