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:
Nov. 04, 2025
Filed:
Jul. 21, 2020
Herrenknecht Ag, Schwanau, DE;
Tobias Gerhardt, Teningen, DE;
Boris Jung, Schutterwald, DE;
Herrenknecht, Schwanau, DE;
Abstract
A drill head for creating a substantially vertical borehole in the ground, includes a body connected to a rotational drive of a drilling device; drilling tools on the body, for loosening the ground at a working face of the borehole; suctioning elements for leading away the loosened ground, which can be connected to a pump, and the suctioning elements include an opening region on the body and with at least one opening in the region of the drilling tools. The opening region has may have an elongate extent, and is connected to a suction box with an opening for connecting to the pump. The loosened ground can be sucked through the opening into the suction box with the pump. The suction box is tapered in width from the opening toward the connection opening, and that the height of the suction box increases from the opening toward the connection opening.