Ceramic filter and method for using same
CA 1264544 C · Owner: Georg Fisher Aktiengesellschaft · Inventors: Otto, Jurgen; Kaettlitz, Wolfgang; Trinkl, Gerd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A ceramic filter for filtering molten iron is disclosed. The ceramic filter is made from a high-melting ceramic material having an open-celled foam structure a variable, bulk density in different portions of the filter and at, least one afflux surface. In order to filter molten iron efficiently, the ratio of filter surface to filter volume should be in the range of about 0.0003 to 9 m2/cm3 the spe-, cific filter resistance should be in the range of about 0.01 to 0.9 bar-cm at a flow rate of 5 m3/hour and the pres-, sure loss .DELTA. p across the filter should depend on the specific resistance? , the filter length, and the surface area of the afflux plane F in …
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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 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.