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:
Jul. 31, 1990
Filed:
Dec. 27, 1988
Junzo Fukushima, Tsuyama, JP;
Kyowa Machinery Co., Ltd., Okayama, JP;
Abstract
A position indicator device for conveyed objects having a checking area disposed in a conveying passage where a plurality of objects are unidirectionally conveyed while being aligned in a conveying direction and a direction normal thereto; an indicator manually movable to a position of a target object within the checking area for indicating a position of the same; and an indicator-position detector for detecting a two-dimensional position of the indicator within the checking area. The checking area includes a plurality of beam emitters operable together to project beams of light in a grating form within the area and a plurality of beam receivers each operable to receive a light beam from a corresponding emitter. The indicator acts as a beam-blocking member for blocking the beam transmission between the emitter and receiver. The indicator-position detector detects a position within the checking area of the indicator based on a position information of the receiver blocked by the indicator.