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:
Jul. 16, 2024
Filed:
May. 22, 2020
Applicants:
Komatsu Ltd., Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Inventors:
Eiichi Morioka, Tokyo, JP;
Shinichi Terada, Tokyo, JP;
Rui Fukui, Tokyo, JP;
Yudai Yamada, Tokyo, JP;
Assignees:
Komatsu Ltd., Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 9/00 (2006.01); E21D 9/11 (2006.01); G01M 5/00 (2006.01);
U.S. Cl.
CPC ...
E21D 9/003 (2013.01); E21D 9/112 (2013.01); G01M 5/0033 (2013.01);
Abstract
A tunnel boring machine includes: a disc cutter including a cutter ring; and a member for use in measurement of a wear amount of the cutter ring with a three-dimensional shape measurement device, in which the member is provided at a part constant in relative position to the cutter ring.