Apparatus for controlled adjustment of a stopper of a distributor channel or the like in a continuous casting plant
CA 2035136 C · Owner: Lothmann, Josef · Inventors: Lothmann, Josef; Paulus, Friedhelm; Schonbrenner, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for controlled adjustment of a stopper (56) of a distributor channel or metallurgical vessel (57) in a continuous casting plant (for billets or ingots) the, stopper (56) being connected to a crosstie or stopper rod (22) disposed above the distributor channel or metallurgical vessel and the crosstie stopper rod itself being connected to a support bar which is movable up and down in a vertical guide means. The vertical guide means of the support bar (square section part 1) is a roller guide means comprising support rollers (10') or support balls (10') which are clamped without clearance between the support bar and an outer housing (2 3, 7).
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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
- Filed January 29, 1991 and granted July 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2013.
- 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.