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:
Oct. 16, 2018
Filed:
Oct. 19, 2015
Applicant:
Baker Hughes Incorporated, Houston, TX (US);
Inventor:
Kyle Gostkowski, Houston, TX (US);
Assignee:
BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/18 (2006.01); E21B 34/06 (2006.01); E21B 49/10 (2006.01); F16K 3/02 (2006.01);
U.S. Cl.
CPC ...
E21B 34/06 (2013.01); E21B 49/10 (2013.01); F16K 3/029 (2013.01); F16K 3/18 (2013.01);
Abstract
A valve includes an outer piston, an inner piston telescopically disposed in the outer piston. A cavity separates at least a portion of the inner piston and the outer piston. The valve also includes a seal disposed in the cavity and that forms an upper pressure chamber and a lower pressure chamber. A first flow space connects the lower pressure chamber with a first flow path and a second flow space connects the upper pressure chamber with a second flow path. A biasing member engages the inner and outer piston.