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:
Apr. 13, 2004
Filed:
Aug. 14, 2001
Sanjeev Bedi, Waterloo, Ontario, CA;
Ben Huynh, Hamilton, Ontario, CA;
Lee Chi Chau, Toronto, Ontario, CA;
Other;
Abstract
A material shaping machine has a frame, a work-piece holder and a tool holder, for rotatably holding a tool. A computer performs real-time tool path calculations based upon stored mathematical representations of a desired work-piece surface and stored mathematical representations of an actual tool geometry, by calculating a desired position of a tool cutting edge relative a measured position of the tool cutting edge and a measured position of the work-piece, and adjusting a distance between the desired tool cutting edge and the measured position of the tool cutting edge in a first direction, so that the tool cutting edge reaches the desired position. Manipulation means provide a relative movement of the work-piece and the tool cutting surface in a second direction and a third direction. The manipulation means are operated outside the computer control. Sensors determine the position of the work-piece relative the cutting surface of the tool and send the position data to the computer.