Method of controlling sliding gate valves, particularly on continuous casting installations
CA 1310249 C · Owner: Vetterli, Walter · Inventors: Cecchini, Silvio; Vetterli, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
During edge reversal (23) of the sliding plate (5) of a sliding gate valve (3) regulating the desired filling level (14) in a mould (9) from a throttled position (D1 or D2) into an opposite throttled position on the flow passage (7) at least the throttled position (D1 or D2) which is to be adopted-after an edge reversal 123) is specified by an operating sequence control preprogrammed in the processor (20) of the filling level regulation in order to counteract larger variations of the liquid level in the mould. (Figure 1)
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.