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.

Date of Patent:
Mar. 18, 2003

Filed:

Aug. 03, 2000
Applicant:
Inventor:

Shinji Okano, Kobe, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07L 1/00 ;
U.S. Cl.
CPC ...
G07L 1/00 ;
Abstract

When obtaining load displaying calibration data, first, a reference die height position (a) where a load (F) of a mechanical press ( ) comes to minimum load value (Fa) is sought as well as a reference die height position (f) where the load (F) comes to maximum load value (Ff). Then a plurality of intermediate die height positions (b . . . e) are selected between these reference die height positions (a) and (f). Subsequently, a load is imposed on the mechanical press ( ) at each of the die height positions (a . . . f) and a pressure sensor ( ) senses peak oil pressures (Pa . . . Pf) corresponding to the respective die height positions (a . . . f). Thereafter, relative relationships between load values (Fa . . . Ff) corresponding to the die height positions (a . . . f) and the peak oil pressures (Pa . . . Pf) are obtained as a characteristic curve (B).


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