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:
Nov. 29, 2011
Filed:
May. 26, 2009
Aaron Andrew Perrault, Burnsville, MN (US);
Rochelle Marie Blackford, Marshalltown, IA (US);
David James Westwater, Marshalltown, IA (US);
Ronald W. Kaufmann, La Porte City, IA (US);
Aaron Andrew Perrault, Burnsville, MN (US);
Rochelle Marie Blackford, Marshalltown, IA (US);
David James Westwater, Marshalltown, IA (US);
Ronald W. Kaufmann, La Porte City, IA (US);
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 flexible seal disposed between a cage and a valve body such that an outer seating surface of a closure member slidably coupled to the cage slidingly engages the flexible seal to prevent fluid flow through the valve body when the valve is in a closed position and an end of the closure member is not driven into abutting engagement with another seating surface when the valve is in the closed position.