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. 22, 2016
Filed:
Feb. 09, 2012
Applicants:
Sebastian Fischer, Lennestadt, DE;
Raimund Grobbel, Eslohe, DE;
Inventors:
Sebastian Fischer, Lennestadt, DE;
Raimund Grobbel, Eslohe, DE;
Assignee:
TRACTO-TECHNIK GmbH & Co., KG, Lennestadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/046 (2006.01); E21B 7/00 (2006.01); E21B 17/02 (2006.01); E21B 17/04 (2006.01);
U.S. Cl.
CPC ...
E21B 7/002 (2013.01); E21B 17/028 (2013.01); E21B 17/04 (2013.01);
Abstract
A plug connection for connecting two pipe sections of a drill pipe has a connecting plug on one end of a first of the pipe sections and a connecting bushing on one end of the second pipe section. The connecting plug and the connecting bushing have helical meshing guide projections and/or guide grooves. A pipe section for a drill pipe has on one of its ends a corresponding connecting plug and on the other end a corresponding connecting bushing.