Tap hole plugs for metallurgical vessels
CA 1309583 C · Owner: Komanecky, Richard J. · Inventors: Komanecky, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plug for the tap hole (H) of a metallurgical vessel (V) is formed by inserting in the hole (H), a container (10) having a fixed end wall (12) and a movable end wall (14) the container, (10) housing a bag (27) containing a refractory mortar (26) an, aperture (34) being present between the fixed wall (12) and the serrated edge (32) of a housing wall (30). The container (10) is diametrically smaller than the hole (H) so that an annular clearance is present. When the movable wall (14) is urged towards the fixed wall (12), the bag (27) is ruptured and the mortar (26) egresses into the annular clearance to form the plug. The container (10) is inserted at the end of a plunger (50) arranged to …
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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 November 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 2009.
- 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.