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:
Sep. 07, 1993
Filed:
Apr. 21, 1992
Gene G Yie, Auburn, WA (US);
Other;
Abstract
A check valve having a valve housing with an outlet fluid passage and a housing valve cavity in communication with each other. A valve body has an inlet fluid passage and a body cavity in communication with each other. The valve body is sealably secured to the valve housing. A valve poppet is slidably mounted within the body cavity. The valve poppet has a central cavity. A side wall of the valve poppet has a poppet through hole which is in communication with the central cavity. The valve poppet has a poppet shoulder portion and an extension portion. A seal disk has a seal disk through hole into which the extension portion of the valve poppet is positioned. The seal disk is positioned within the housing valve cavity. A closure spring is used to normally urge the valve poppet into a closed position in which the valve poppet preferably abuts a sealing surface of the valve body.