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:
Sep. 14, 2021
Filed:
Jul. 12, 2017
Herrenknecht Ag, Schwanau, DE;
Herrenknecht AG, Schwanau, DE;
Abstract
The invention relates to a device () for producing a cavity in a soil from a starting point to a target point along a drilling line for introducing timbering for holding the cavity open having a tunneling head (), at the outer end of which at least one cutting element () for Stripping the soil is provided, wherein the tunneling head () has a receiving Chamber () which has an opening (), to which a face conveyor line () is connected, and in which at least a first nozzle () for discharging a liquid for transporting the stripped soil away from the receiving Chamber is provided, which first nozzle () is provided in such a way that the discharge opening thereof is oriented substantially in the direction of the face conveyor line, wherein the advancing drive takes place via an advancing device. It is provided here that at least one second nozzle () is provided which is arranged in such a way that the discharge opening thereof is directed substantially onto the soil to be stripped.