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:
Apr. 20, 1982
Filed:
Oct. 06, 1980
Clarke K Wolfert, Peoria, IL (US);
Air Vent, Inc., Peoria, IL (US);
Abstract
A ridge ventilator for the roof of a building includes a porous, non-woven and fiberous filter medium selectively installed in the ventilator to prevent inadvertent infiltration of moisture through the ventilator into the space below the roof. The filter medium is retained in operative position engaged against louvered panels, outer side walls and at least portions of the top wall of the ventilator. The thickness of the filter medium preferably is greater than the height of the outer side walls so that the filter medium is frictionally retained in its operative position. The filter medium has a density gradient through its thickness with the most dense portion of the medium being arranged adjacent the louvered openings. In operative position, the filter medium will trap or filter moisture from air entering the ventilator from ambient atmosphere and yet, will permit exhausting of air through the ventilator to ambient atmosphere.