Calibration gauge for computer-controlled lens generator or the like
CA 1215447 A · Owner: Coburn Optical Industries, Inc. · Inventors: Field, Edgar L. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer-controlled lens generating arrangement (1) has a calibration gauge (14) mountable on a lens chuck (28) and moveable into a calibration position for detecting a worn or eroded condition of a tool (18). When a worn or eroded condition of tool (18) is detected, data are provided to a computer (60) which recomputes positioning data for the chuck (28), and repositioning of the chuck (28), as well as the angle of the cutting tool (18), takes place.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.