Method and apparatus for manufacturing heat-resistant and/or fire-resistant fibre materials
CA 1268947 C · Owner: Tuovinen, Frans H. · Inventors: Tuovinen, Frans H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for manufacturing heatresistant and/or fire-resistant fibre materials using as, initial material molten slag from metal processes. A slag holding furnace is used for achieving an essentially even and continuous molten flow from a slag smelting furnace into a mineral wool furnace. An apparatus is disclosed for carrying out the method, wherein the holding furnace is provided with at least one control device which moves the furnace between different filling positions in order to ensure an even and continuous flow of molten material.
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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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- 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.