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. 01, 1998
Filed:
Aug. 14, 1997
Applicant:
Inventor:
Dennis D Foley, Concord Township, OH (US);
Assignee:
The Excello Specialty Company, Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
1375124 ; 137843 ; 454162 ;
Abstract
A region in a thin plastic sheet is formed to include a series of corrugations. These corrugations are include alternating peaks or crests and roots or valleys. The plastic sheet is to be installed on a workpiece intermediate areas or zones periodically exposed to differential air pressures. Slit areas incorporated into adjacent crests of the corrugations to extend along a longitudinal portion thereof allow air flow passage therethrough in one direction while preventing air flow in the other direction.
Quick Actions:
Foley, Dennis. (1998). Integrally formed air flow valve (U.S. Patent No. 5842503). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5842503
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile