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.

Date of Patent:
Aug. 30, 2016

Filed:

Jun. 29, 2012
Applicants:

Martin Lanzl, Schrobenhausen, DE;

Manfred Angermeier, Karlskron, DE;

Peter Fischer, Kaisheim, DE;

Dieter Stetter, Aichach, DE;

Inventors:

Martin Lanzl, Schrobenhausen, DE;

Manfred Angermeier, Karlskron, DE;

Peter Fischer, Kaisheim, DE;

Dieter Stetter, Aichach, DE;

Assignee:

BAUER MASCHINEN GMBH, Schrobenhausen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/02 (2006.01);
U.S. Cl.
CPC ...
E21B 7/02 (2013.01);
Abstract

The invention relates to a drilling unit with a carrier vehicle with a hydraulic supply, a mast, a carriage which can be moved along the mast and a hydraulic cylinder for moving the carriage which comprises a cylinder housing, in which a piston with a piston rod is mounted so that it can be displaced. The piston rod is fixed to the mast and the cylinder housing to the carriage. The carriage is connected to the hydraulic supply and comprises at least one hydraulic connection. The hydraulic cylinder is connected via the hydraulic connection on the carriage to the hydraulic supply.


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