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:
Dec. 06, 2022
Filed:
Sep. 21, 2020
Applicant:
Wirtgen Gmbh, Windhagen, DE;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
E01C 23/12 (2006.01); B28D 7/00 (2006.01); G01N 3/58 (2006.01); E01C 23/088 (2006.01); G01N 3/56 (2006.01); E21C 35/00 (2006.01); G01B 1/00 (2006.01);
U.S. Cl.
CPC ...
E01C 23/12 (2013.01); B28D 7/00 (2013.01); E01C 23/088 (2013.01); E21C 35/00 (2013.01); G01B 1/00 (2013.01); G01N 3/56 (2013.01); G01N 3/58 (2013.01);
Abstract
This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.