Title: Ventilating device

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.

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Inventors: Maus, Julius (Stuttgart, DT)

Application Number: 657220
Filing Date: 1976-02-11
Publication_date: 1977-09-27
Assignee: Gretsch-Unitas GmbH Baubeschlagfabrik (DT)
Primary Class(es): 454/322 181/224
Other Classes:
US Patent Ref:

1562061	Nov, 1925	Schneider	98/DIG.
1665211	Apr, 1928	Kennedy	181/33.
1975316	Oct, 1934	Ferris	98/37.
2125669	Aug, 1938	Fisk	181/33.
2216420	Oct, 1940	Rose	181/33.
2704504	Mar, 1955	Wilkening	181/33.
2726518	Dec, 1955	Brugler	98/94.
2992701	Jul, 1961	White	98/94.
3799703	Mar, 1974	Paine et al.	98/39.

Other Refs:
Primary Examiner: Camby, John J.
Assistant Examiner: Yuen, Henry C.
Attorney: McGlew and Tuttle