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:
Mar. 29, 2011
Filed:
Feb. 28, 2006
Kiyoshi Asahina, Kobe, JP;
Ryusuke Kitamura, Kobe, JP;
Toshio Hamada, Kobe, JP;
Takao Shirakura, Tokyo, JP;
Kiyoshi Asahina, Kobe, JP;
Ryusuke Kitamura, Kobe, JP;
Toshio Hamada, Kobe, JP;
Takao Shirakura, Tokyo, JP;
Kobe Steel, Ltd., Hyogo, JP;
Abstract
The present invention aims at estimating a residual life of a blasting vessel. For the estimation, a strain gaugeis attached to a blasting vessel. The strain gaugemeasures high-frequency repetitive strain caused in the blasting chamberin each explosion. Strain waveform data obtained with the strain gaugeis analyzed to calculate the cumulative degree of fatigue damage due to a high-frequency repetitive load applied to the blasting vesselin each explosion. A residual life of the blasting vesselis estimated on the basis of a cumulative value of the cumulative degrees of fatigue damage.