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. 04, 1984
Filed:
Sep. 14, 1981
Robert K Meek, Norman, OK (US);
Prince Valve, Inc., Oklahoma City, OK (US);
Abstract
A fluid check valve having a cylindrical tubular body member which is symmetrical and is adapted to receive a pair of opposed head members which have suitable coupling ends formed thereon. The head members may be threaded on to the body or secured to the body with pins that prevent transmission of uncoupling torque to head retaining nuts engaged with the body. A valve closure disc is mounted on a removable support ring retained in a counterbore formed in the valve body by one of the head members. A valve seat surface may be integrally formed on a transverse face of one or both of the head members or may be provided as a separate seat insert threadedly mounted on the head members. The head members may be interchanged to accommodate particular coupling arrangements. The seat surface on the downstream head member is protected by a removable wear ring, or a removable wear ring insert is mounted in the head member in place of the seat insert.