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:
May. 26, 2015
Filed:
Dec. 30, 2011
Applicants:
David P. Gerrard, Magnolia, TX (US);
Yang Xu, Houston, TX (US);
Inventors:
David P. Gerrard, Magnolia, TX (US);
Yang Xu, Houston, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 29/00 (2006.01); E21B 33/12 (2006.01); E21B 33/134 (2006.01); E21B 34/14 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1208 (2013.01); F16K 29/00 (2013.01); E21B 33/134 (2013.01); E21B 34/14 (2013.01);
Abstract
A restriction engaging system includes, a restriction engager, one or more restrictions, and at least one counter configured to permit or prevent passage of a restriction engager through one of the one or more restrictions.