Valve assembly for venting die casting moulds
CA 2293108 A1 · Owner: Fondarex Sa · Inventors: Wyser, Johann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The valve assembly for venting die casting moulds comprises a venting channel, a venting valve communicating with the venting channel as well as an actuating device for closing the venting valve. The actuating device comprises a power pick-up member that is axially movable under the influence of the liquid casting material entering the venting channel. The venting valve comprises a closure member biased against a stop member and operatively connected to an actuating element. The stop member is pivotable by means of the power pick-up member such that the closure member of the venting valve is displaced from its open position to its closed position under the influence of the actuating …
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
- Filed December 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2021.
- 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.