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:
Jan. 20, 1987
Filed:
Dec. 31, 1985
Gary W Scheffel, Streetsboro, OH (US);
Richard J Medvick, Shaker Heights, OH (US);
William C Steiss, Parma, OH (US);
Nupro Company, Willoughby, OH (US);
Abstract
A poppet check valve comprising mating body forming sections which define a valve chamber having a cylindrical inner wall. A generally cylindrical inlet passage connects axially with the valve chamber and a shoulder at the juncture between the inlet passage and the chamber defines an annular valve seat. Positioned in the chamber and extending transversely thereof is a relatively thin disk-like valve element. The valve element has a generally circular imperforate central section of a diameter greater than the diameter of the inlet passage but less than the diameter of the valve chamber. A plurality of legs extend radially from the periphery of the central section into sliding engagement with the inner wall of the valve chamber. A circular seal element is joined to one side of the central section at a location inwardly of its outer periphery to extend axially toward the valve seat. The valve element is maintained under a bias toward the seat by a coil spring mounted in the valve chamber. Positioned between the spring and the valve element is a stop member including a plurality of radially spaced, axially extending force applying elements for engaging the central section of the valve element on the side opposite the seal element. The stop also includes guide surfaces extending radially outwardly of the force applying elements into sliding engagement with the wall of the valve chamber at a location axially spaced from the valve element.