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:
Feb. 11, 1997
Filed:
Feb. 21, 1995
Jeffrey C Lewis, Rochester Hills, MI (US);
James F Fleck, Warren, MI (US);
TRW Inc., Cleveland, OH (US);
Abstract
A flap-type pressure relief valve includes a frame defining a flow opening therethrough with a flexible flap valve element positioned adjacent the frame to overlie the opening and allow fluid flow in a first direction through the opening while preventing flow in the opposite direction. A retainer assembly for joining a peripheral edge portion of the flap valve element to the frame comprises an elongated retainer bar integrally joined to the frame at one edge and connected to the frame at the other edge along a side of the flow opening in overlying relationship to a peripheral edge of the flap valve element. The retainer bar has a retainer surface spaced from the frame a distance slightly greater than the thickness of the flap valve element. Retainer pins extend from the frame through openings in the flap valve element. The assembly thus supports the flap valve element in a freely floating manner without forming air leakage openings.