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:
Apr. 05, 2016
Filed:
Aug. 30, 2012
Eric Robert Dobbs, Marshalltown, IA (US);
Theodore Paul Geelhart, Conrad, IA (US);
Timothy Arthur Mcmahon, Marshalltown, IA (US);
Paul Taylor Alman, Marshalltown, IA (US);
Yan Qiu, Tianjin, CN;
Eric Robert Dobbs, Marshalltown, IA (US);
Theodore Paul Geelhart, Conrad, IA (US);
Timothy Arthur McMahon, Marshalltown, IA (US);
Paul Taylor Alman, Marshalltown, IA (US);
Yan Qiu, Tianjin, CN;
FISHER CONTROLS INTERNATIONAL, LLC, Marshalltown, IA (US);
Abstract
A valve seat apparatus for use with fluid valves is described. An example valve seat apparatus includes a seat ring having an outer surface that includes a first annular recess and a second annular recess adjacent the first annular recess to form a stepped profile. A seal assembly is disposed within the first groove and a retainer is disposed in the second annular recess to retain the seal assembly in the first annular recess of the seat ring.