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:
Oct. 08, 2013
Filed:
Aug. 17, 2010
Sebastian Bauer, Schrobenhausen, DE;
Sebastian Bauer, Schrobenhausen, DE;
Bauer Maschinen GmbH, Schrobenhausen, DE;
Abstract
The invention relates to a drilling apparatus for working the ground comprising a drill drive for driving a drill string in a rotating manner and a rotary feedthrough for passing a construction material from a construction material hose into the interior of the drill string, whereby the rotary feedthrough has a first line connection for the construction material hose and a second line connection, rotatable relative to the first line connection, for the drill string. In accordance with the invention provision is made for the rotary feedthrough to have a rotary device for actively rotating the second line connection relative to the first line connection. The invention also relates to a method for working the ground, which can be carried out, in particular, by means of a drilling apparatus according to the invention.