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:
Jul. 27, 2021
Filed:
Sep. 05, 2017
Beth-el Zikhron Yaaqov Industries Ltd., Zikhron Yaaqov, IL;
Samuel Koeger, Zikhron Yaaqov, IL;
Jonathan Schneider, Zikhron Yaaqov, IL;
BETH-EL ZIKHRON YAAQOV INDUSTRIES LTD., Zikhron Yaaqov, IL;
Abstract
A louver type blast valve making use of an aerodynamically configured blade, independently activated by air flow to block a blast shock wave and a subsequent return suction wave. The blast valve (FIG.) including a frame and at least one aerodynamically configured blade, independently activated by air flow to block a blast shock and a potentially following return wave. The aerodynamically configured blade having an elongated shape, including at least a steep convex surface and a flat or shallow concave surface, forming a leading edge and a trailing edge at the intersection of the surfaces. The blade being hinged to the frame about a longitudinal axis passing between the steep convex surface and the flat or shallow concave surface.