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:
Jun. 21, 2016
Filed:
Mar. 05, 2013
Applicant:
Celtic Machining Ltd., Rainier, CA;
Inventors:
Martin E. C. Gubbins, Rainier, CA;
Sven W. Larsen, Rainier, CA;
Assignee:
Celtic Machining Ltd., Rainier, Alberta, CA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/22 (2006.01); B66D 3/00 (2006.01);
U.S. Cl.
CPC ...
E21B 19/22 (2013.01); B66D 3/003 (2013.01); Y10T 29/49995 (2015.01);
Abstract
Gripper dies for a continuous coiled rod injector are machined from a single, unitary, integral steel body forming both the base portion for connection to the injector drive chain and the gripping portion for engagement of the continuous coiled rod. Curved transitions are provided between ends of a gripping portion of the die and a profiled gripping face thereof, which features an arcuate surface and diverging planar surfaces extending therefrom to accommodate varying sizes of round and elliptical rod.