Calibrating cameras used in alignment of wheels
CA 2266071 A1 · Owner: Jackson, David A. · Inventors: Jackson, David A.; Glickman, Steve L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for use in calibrating an opto-electric alignment system used to align motor vehicle wheels the apparatus including first (162) and second (164) targets rigidly affixed to a beam (160). During calibration both targets are viewed by a first inspection device when the beam is placed normal to the imaginary line connecting the first inspection device and a second inspection device of the alignment system. Then the beam is moved parallel to the imaginary line and the first target is viewed by the first optical inspection device and the second target is viewed by the second inspection device.
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
- Filed September 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2019.
- 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.