Photoelectric apparatus for tracing a scanning head along a pattern track
CA 1299699 C · Owner: Decker, Klaus · Inventors: Polacek, Ivan; Decker, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a photoelectric apparatus for tracing a scanning head along a pattern track, a constant arrangement of tightly spaced light-sensitive elements is provided in the scanning head forming together with an addressing device scanning patterns which can be sampled. On the arrangement of the light-sensitive elements a section of a pattern plane for scanning including an essential transversal component of the scanning pattern is imaged. From illumination state signals of the sampled light-sensitive elements, control signals are generated by means of an evaluation device controlling the tracing movement of the scanning head in two movement directions rectangularly oriented relative to each other. …
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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 April 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 2009.
- 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.