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. 29, 1996
Filed:
Dec. 20, 1994
Hannu Jokinen, Oulu, FI;
Kari Maatta, Oulu, FI;
Rautaruukki Oy, Oulu, FI;
Abstract
A method for positioning a device emitting and receiving optical radiation for measuring wear in the lining of a container involves fixing the coordinate systems of the device and the container to each other by measuring the position of specific fixing points (P1, P2, P3) in the coordinate system (16) of the device (1). The fixing points have a regular shape. The position of each fixing point is measured by deflecting optical radiation in two intersecting directions across the fixing point, by measuring the optical radiation reflected from the fixing point, by determining on the basis of the optical radiation reflected to the measuring device at least two intersections, in both deflection directions, between the fixing point and the optical radiation emitted, and by calculating, on the basis of these at least four intersections, a directing point, to which the optical radiation emitted by the device is directed for determining the coordinates of the fixing point.