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:
Aug. 16, 2016
Filed:
Dec. 08, 2011
Applicants:
Shawn Nielsen, Spruce Grove, CA;
Sinisa Dobrijevic, Edmonton, CA;
Robert Ewen, Houston, TX (US);
Inventors:
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/22 (2006.01);
U.S. Cl.
CPC ...
E21B 19/22 (2013.01);
Abstract
A tubing injector has a first injector pair and a second pair of cooperating injector mechanisms. The first injector pair are positioned on a first track and the second pair are positioned on a second track. The tubing injector provides redundancy to address safety concerns. The first injector pair is movable to the engaged position, when the second injector pair is moved to the disengaged position and vice versa.