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:
Sep. 27, 2022

Filed:

Sep. 25, 2019
Applicant:

Omron Corporation, Kyoto, JP;

Inventors:

Koji Nishigaki, Kusatsu, JP;

Tatsuya Sasaki, Otsu, JP;

Takanori Shibutani, Otsu, JP;

Assignee:

OMRON Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 19/06 (2006.01); G01B 21/02 (2006.01);
U.S. Cl.
CPC ...
B23P 19/066 (2013.01); G01B 21/02 (2013.01);
Abstract

Provided is a screw length determination system capable of determining the length of a screw with a high degree of accuracy. A PLC () determines the length of a screw on the basis of the amount of rotation or the position in the axial direction of a driver during a period lasting from the time when the screw completes its descent until any time from among the time when provisional seating occurs, the time when the primary tightening period ends and the time when the period of holding for primary tightening ends.


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