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:
May. 01, 2018
Filed:
Jan. 20, 2016
Applicant:
Hitachi Zosen Corporation, Osaka, JP;
Inventor:
Toshiyuki Okada, Osaka, JP;
Assignee:
HITACHI ZOSEN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 9/11 (2006.01); E21D 9/10 (2006.01); E21D 9/08 (2006.01); E21D 9/087 (2006.01);
U.S. Cl.
CPC ...
E21D 9/108 (2013.01); E21D 9/1013 (2013.01); E21D 9/08 (2013.01); E21D 9/087 (2013.01); E21D 9/10 (2013.01); E21D 9/11 (2013.01);
Abstract
The tunnel boring machine includes a data processing unit configured to obtain error data (E) based on a current measurement value (Vp) of the strain sensor obtained at a current angle (θ) of the cutter head and a past corresponding measurement value (Vo) obtained at a corresponding angle corresponding to the current angle, to correct the current measurement data using the error data.