Inspection method and apparatus for tanks and the like
CA 2223218 A1 · Owner: Qureshi, Iqbal · Inventors: Mcnulty, George R.; Qureshi, Iqbal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for remotely visually inspecting the interior of an elongated tank. The apparatus includes an articulated arm which extends into the tank through an access opening and is adapted to pivot at successive joints by operation of associated servomotors to enable it to follow a path along the axis of the tank. A TV camera is carried on the lead end of the arm and scans the interior of the tank through 360° rotation about the tank axis. The arm carries the camera to the zones where the tank end walls are joined to the sidewall for viewing the zones from advantageous lines of view.
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 December 1, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.