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:
Jun. 23, 2020
Filed:
May. 06, 2015
Fisher Controls International Llc, Marshalltown, IA (US);
Jonathan Wesley Richardson, Marshalltown, IA (US);
Jesse Creighton Doyle, Lincoln, NE (US);
FISHER CONTROLS INTERNATIONAL LLC, Marshalltown, IA (US);
Abstract
Valve trim apparatus having multiple fluid flow control members are disclosed herein. An example valve trim apparatus includes a primary valve seat and a first flow control member having a cavity and a first seating surface, where the first flow control member is movable relative to the primary valve seat. A second flow control member is disposed within the cavity and slidably coupled relative to the first flow control member. A secondary valve seat is coupled to the first flow control member and the second flow control member moves relative to the secondary valve seat to throttle a fluid flow across the secondary valve seat.