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:
Mar. 12, 2019
Filed:
Dec. 02, 2015
Applicant:
Tracto-technik Gmbh & Co. KG, Lennestadt, DE;
Inventors:
Assignee:
TRACTO-TECHNIK GmbH & Co. KG, Lennestadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/08 (2006.01); E21B 7/04 (2006.01); E21B 19/084 (2006.01); E21B 19/086 (2006.01);
U.S. Cl.
CPC ...
E21B 19/08 (2013.01); E21B 7/046 (2013.01); E21B 19/084 (2013.01); E21B 19/086 (2013.01);
Abstract
A drive of a slide which can move back and forth of an earth drilling device to move a drill string, wherein a rod, which can move relative to a cylinder, and tension transmitting means are provided in a frame and act on the slide, wherein the rod is connected to the frame, and deflection rollers are provided for the tension transmitting means on the frame and on the cylinder.