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:
Oct. 07, 2025
Filed:
Nov. 16, 2022
Proterial, Ltd., Tokyo, JP;
Yohei Shirakawa, Tokyo, JP;
Proterial, Ltd., Tokyo, JP;
Abstract
A stroke sensor is provided with two disk-shaped rotors configured to rotate with a stroke of a measuring object, a rotation detecting unit that detects rotations of the two rotors, respectively, and a stroke position detecting unit that detects the stroke position of the measuring object based on the rotations of the two rotors detected by the rotation detecting unit. At least one of the two rotors is in direct contact with the measuring object. The two rotors are provided side by side in an arrangement direction perpendicular to an axial direction of the measuring object and are provided so as to be adjacent to the measuring object in an arrangement perpendicular direction perpendicular to the axial direction and the arrangement direction. Each of the two rotors is provided in such a manner that its rotation axis direction is inclined with respect to the arrangement direction.