Tool positioning assembly
CA 2045233 C · Owner: The Babcock & Wilcox Company · Inventors: Lindsey, Orville L.; Brew, John D.; Pendergraft, Rex A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool positioning assembly adapted to receive tooling for repairing heater penetrations at the lower end of a pressurizer supported on its end by a support skirt between the pressurizer and a base with the pressurizer having a surge line extending vertically into the apex of the lower spherical end of the pressurizer. A pair of circular tracks are mounted so as to be concentric with the pressurizer. The inner track is mounted to the surge line and the outer track is mounted so as to be below the outer periphery of the pressurizer. A carriage is movably mounted between the tracks so as to be movable therebetween and around the pressurizer. Cross slides mounted on the carriage provide …
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 June 21, 1991 and granted August 30, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
- 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.