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. 25, 1990
Filed:
Sep. 06, 1989
Applicant:
Inventor:
Naoyuki Maeda, Inuyama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
7386254 ; 100 99 ;
Abstract
An apparatus and a method for detecting an abnormal load for a pressurizing apparatus is disclosed, in which a load change of the work is detected by use of an effective power detector or a mechanical strain detector, and values obtained by sampling at a plurality of points of pressurizing time are compared with a normal value already stored. The result of comparison is used to detect an abnormal load condition.