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. 27, 2021
Filed:
Nov. 08, 2019
Applicant:
Flowserve Management Company, Irving, TX (US);
Inventors:
Nathan Terwilliger, Bethlehem, PA (US);
Christopher Shages, Bethlehem, PA (US);
Mark O'Sullivan, Phillipsburg, NJ (US);
Assignee:
Flowserve Management Company, Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/10 (2006.01); F04C 27/00 (2006.01); F16K 11/07 (2006.01); E21B 43/26 (2006.01); E21B 43/267 (2006.01); F04F 13/00 (2009.01); E21B 43/017 (2006.01); E21B 34/08 (2006.01); E21B 34/10 (2006.01);
U.S. Cl.
CPC ...
E21B 21/10 (2013.01); F04C 27/006 (2013.01);
Abstract
Devices for exchanging properties, such as pressure, between at least two fluid streams and related methods may include pistons coupled to a valve stem. The valve stem and valve body may be configured to define a primary seal between the one or more pistons and the valve body and a secondary seal between the one or more pistons and the valve body.