Antinoise baffle for screw type valves with ceramic disk seals
CA 2038231 A1 · Owner: Orlandi, Alessio · Inventors: Orlandi, Alessio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an antinoise baffle especially for screw type valve having a first ceramic disk (13) fixed in the body with at least one hole (13a) for the flow of water a, second ceramic disk (14) resting against and rotating on the first with at least one lateral slot (14a) positionable in correspondence to and away from the one of the first disk following a quarter or half rotation of the second disk. At least on net (21) is placed and blocked on the second disk (14) and has at least one with which extends towards the first disk near to one or each lateral slot (14a) of said second disk, the wings extending between said slot and the opening (20) for the outlet of water. Fig. 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
- Filed March 14, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 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.