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:
Apr. 07, 2026
Filed:
Apr. 14, 2022
Herrenknecht Aktiengesellschaft, Schwanau, DE;
Gerhard Wehrmeyer, Schwanau, DE;
Jens Brandt, Bad Krozingen, DE;
HERRENKNECHT AKTIENGESELLSCHAFT, Schwanau, DE;
Abstract
In a cutting wheel () for a tunnel boring machine, a tool condition monitoring device is provided to monitor the condition of at least one mining tool () during removal of a geological structure present, during tunneling, at the cutting wheel () in a tunneling direction. At least one support part () is installed separately and at a distance from the or a relevant mining tool (). In the relevant support part (), a current conductor element is embedded, which is interrupted in terms of its ability to carry current after a wear limit which is characteristic of the condition of the relevant mining tool () has been reached. In this way, the condition of mining tools () can be reliably determined during a relatively simple maintenance operation or retrofitting with a support part ().