Electric furnace with tiltable and removable hearth
CA 1071676 A · Owner: Reese, Thurston F. · Inventors: Reese, Thurston F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A direct arc electric furnace having a tiltable base for pouring molten metal from the furnace. A refractory lined hearth supported by the base is pivotal with respect to the base for tilting to a degree greater than that capable by the base. The furnace includes shell refractory lining material supported upon the hearth encompassed by a removable shell. Replacement of the shell lining is accomplished by removing the shell collapsing, the shell lining into the hearth and tilting the hearth with, respect to the base sufficiently to dump the collapsed lining from the hearth into the pit adjacent the furnace. Further the use of the tilting and removable hearth permits the hearth to be removed …
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 February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- 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.