Methods and apparatuses for the exact determination of an angle of rotation
CA 2517397 C · Owner: Lippuner, Heinz · Inventors: Lippuner, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method according to the invention for the accurate determination of an angle of rotation (w) about an axis (a) at least a part of a plurality of pattern elements (5 ... 13) arranged around a pattern center (4) a multiplicity of which are arranged one behind the other in a rotation is at least partly focused by means of optical beams on a multiplicity of detector elements (2) of an optical detector (1) which are arranged in series. The pattern elements (5 ... 13) are arranged on a rotating body (3) which is connected to the detector (1) so as to be rotatable about the axis (a). Positions (p) of the focused pattern elements are resolved by means of the detector elements (2) of one and …
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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
- Filed August 29, 2005 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.