Gunning apparatus
CA 1293110 C · Owner: National Refractories & Minerals Corporation · Inventors: Fennema, Paul T.; Natolino, Romeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Gunning apparatus adapted to be carried by a mobile device such as a fork lift truck and inserted in a side door of a furnace such as an electric furnace and used to gun refractory material onto the inside surface of the furnace lining comprises a boom with one and adapted to be attached to the mobile device and the other end carrying a spray nozzle which can be rotated about a vertical axis the boom, also carrying refractory conveying mean water conveying, means, means to admix the refractory and water means to, convey the admixture to the spray nozzle and motor means to, rotate the spray nozzle.
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
- Granted December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2008.
- 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.