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:
Jul. 07, 2009

Filed:

Oct. 16, 2006
Applicant:

Leonhard Weixler, Thierhaupten, DE;

Inventor:

Leonhard Weixler, Thierhaupten, DE;

Assignee:

Bauer Maschinen GmbH, Schrobenhausen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to a construction machine, in particular a drilling and/or pile driving device, for foundation construction comprising a chassis and a leader arranged on the chassis for the longitudinally displaceable guidance of a drive head. Provision is made for the leader to be pivotable on the chassis by means of a pivot drive about a pivot axis that extends at least approximately parallel to the longitudinal axis of the leader. In accordance with the invention at least one locking element is provided which can be displaced between a first position, in which it fixes the leader around the pivot axis in a rotationally fixed manner on the chassis, and a second position, in which the leader is released. In addition, according to the invention a setting device is provided for the remote-controlled displacement of the locking element.


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