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:
Mar. 18, 2008
Filed:
Jun. 23, 2003
Yasuhiko Wakatsuki, Tokyo, JP;
Haruo Tsutsumi, Tokyo, JP;
Yasuhiko Wakatsuki, Tokyo, JP;
Haruo Tsutsumi, Tokyo, JP;
Hirata Corporation, Tokyo, JP;
Abstract
A piston-ring inspecting device includes a sensor unit () including a light emitting system () that emits slit-like detection light toward an outer peripheral surface (Ps) of a piston (P) and an outer peripheral surface () of a piston ring () and a light receiving image system () that receives light reflected from the outer peripheral surfaces so as to form an image; an image calculating means that subjects image information obtained by the sensor unit to numerical processing and that calculates a tilt angle of the outer peripheral surface of the piston ring with respect to the outer peripheral surface of the piston; and a controller () including a judgment means that, based on arithmetical information obtained by the image calculating means and preset standard information, judges whether or not the piston ring has been fitted in a predetermined direction. Accordingly, an inspection can be performed without scanning, through a simple analysis process, in a short time, and with high accuracy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile