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, 2022
Filed:
Feb. 04, 2020
Applicant:
Tracto-technik Gmbh & Co. KG, Lennestadt, DE;
Inventor:
Franz-Josef Puttmann, Lennestadt, DE;
Assignee:
TRACTO-TECHNIK GmbH & Co. KG., Lennestadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/00 (2006.01); E21B 1/00 (2006.01); E21B 4/06 (2006.01);
U.S. Cl.
CPC ...
E21B 4/003 (2013.01); E21B 1/00 (2013.01); E21B 4/06 (2013.01);
Abstract
A ground drilling device comprising a housing, a lengthwise movable drilling head tip arranged in the housing, and a bearing for supporting the drilling head tip in the housing during its lengthwise movement.