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:
Jun. 16, 2020
Filed:
Jun. 14, 2018
Mitutoyo Corporation, Kanagawa, JP;
Masaoki Yamagata, Kawasaki, JP;
Shiro Igasaki, Kawasaki, JP;
MITUTOYO CORPORATION, Kanagawa, JP;
Abstract
An indicator inspection machine inspects the accuracy of an indicator based on a value displayed by the indicator when a spindle changes position. The indicator inspection machine includes a measurement spindle provided so as to be freely raised and lowered in order to displace the spindle of the indicator; a contact point provided to a distalmost end of the measurement spindle, the contact point making contact with an indicator contact point provided to a distalmost end of the spindle of the indicator; a drive mechanism driving the measurement spindle; and a controller controlling the drive mechanism so as to bring the contact point into contact with the indicator contact point while changing a speed of the measurement spindle at a predetermined periodicity.