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:
Jan. 28, 1992
Filed:
Nov. 28, 1988
David L Burk, Pittsburgh, PA (US);
Allegheny Ludlum Corporation, Pittsburgh, PA (US);
Abstract
A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to view the surface where the light strikes, such that when the surface of the workpiece is flat, a straight line is sensed by the video camera, when the surface is irregular, the video camera senses a nonlinear line, the video camera creates a two dimensional image of the sensed light and supplies this signal to a processor, which then creates an image of the workpieces which is displayed by a video monitor and a printer. The processor extracts a variety of quantitative parameter values from the images.