Low noise fluid control valve
CA 2482181 A1 · Owner: Fisher Controls International, Inc. · Inventors: Baumann, Hans D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid control valve includes a valve body having a fluid passageway (14 16), a cage (20) mounted in the fluid passageway the cage including a wall , (30) defining a cage bore (32) having an axis (34) and a valve plug assembly , (22) including a valve plug (26) that is axially slidable in the cage bore. The cage defines one or more windows (42) and a valve seat (40). Each of the one or more windows includes a plurality of slots (100 102, 110), each having , a longitudinal axis (116 Fig.4). The longitudinal axis of each of the slots is parallel to or tilted at a relatively small angle with respect to a reference plane (112) that is perpendicular to the cage bore axis. The longitudinal …
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 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2025.
- 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.