Orifice meter with isolation chamber seal on the orifice disc carrier
CA 1193885 A · Owner: Halliburton Group Canada Inc. · Inventors: Van Scoy, Davis A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An orifice meter wherein a disc carrier plate has two openings one, being a receptacle for an orifice disc and the other a through flow port. When the carrier is raised for replacement of the disc the flow port is, aligned with the flow passages. Seals around the flow port seal off the flow passages so that pipeline flow may be resumed during the orifice disc replacement.
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 September 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2002.
- 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.