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:
Dec. 28, 1976
Filed:
Jul. 21, 1975
Bernard R Shuler, Louisville, KY (US);
American Air Filter Company, Inc., Louisville, KY (US);
Abstract
An air filter unit to be installed in the wall of an air conveying conduit for filtering air as it passes between the conduit and a room includes a frame to mount a flow-through filter over an appropriate aperture in the conduit wall, a gasket between the filter and frame, a gasket between the frame and interior surface of the conduit wall, a frame collar disposed around the periphery of the frame, a clamp which causes the frame and collar to coact in a vice-like manner forcing the frame against the interior wall surface of the duct compressing the gasket therebetween, and a clamp for holding the filter in the frame. The filter unit may further include a pivotally mounted extractor plate disposed inside the conduit to selectively direct a predetermined amount of air through the filter.