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:
Sep. 14, 2021
Filed:
Apr. 08, 2019
Applicants:
Zhihui Zhang, Katy, TX (US);
Yingqing Xu, Tomball, TX (US);
Zhiyue Xu, Cypress, TX (US);
Inventors:
Assignee:
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/18 (2006.01); E21B 41/00 (2006.01); E21B 23/10 (2006.01);
U.S. Cl.
CPC ...
F16K 1/18 (2013.01); E21B 23/10 (2013.01); E21B 41/005 (2013.01);
Abstract
A plug system including a housing, a member movably disposed in the housing, a seat disposed at the member, the seat receptive to an object, and a flapper connected to the member and closable onto the member when the member is shifted by the object.