Orifice plate assembly
CA 1294796 C · Owner: Ossyra, John D. · Inventors: Ossyra, John D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An effective and efficient orifice plate is provided to accurately and safely measure the flow rate of gases and liquids. Advantageously, the orifice plate prevents leakage, spillage, and dripping of hot hydrocarbon liquids and gases and other fluids. To this end the orifice, plate comprises an annular disk with special front and back surfaces. The special front and back surfaces have a flat fluid-engaging barrier portion which contact the fluid stream about the flow passageway and have a grooved portion which extends radially outwardly of the flat portion to effectively seal and abut against one or more seals or gaskets.
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.