Ball valve with high damping of the noise due to fluid passage
CA 2490106 C · Owner: Pibiviesse S.R.L. · Inventors: Zuccarelli, Dino; Vago, Antonello
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A regulation ball valve for a fluid flow in which a ball (14) is rotatable to bring a passage (16) thereof from a limit position of full opening of the valve to a limit position of full closure of the valve and vice versa. Present in the passage (16) are perforated baffles (17) that at least at an intermediate position between the limit positions are passed through by a fluid flow. The perforated baffles (17) comprise two perforated metal sheets (18 19) between which a layer (20) permeable to the fluid is disposed. In particular the layer can advantageously be formed of chaotically-disposed filaments like in steel wool.
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 13, 2004 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.