Injector valve
CA 1296904 C · Owner: Phillips, Donald M. · Inventors: Phillips, Donald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An injector valve for injecting proportional quantities of a first liquid into a second liquid flowing through the body of the valve which is provided with spaced apart primary and secondary flow channels and with an inlet port and an outlet port common to the flow channels. The secondary flow channel is provided with a Venturi, with a throat generally intermediate the ends thereof. The throat area defines an injection chamber in the form of an annular enclosure coaxial with the secondary flow channel, and with the axial length of the injection chamber being substantially coextensive with that of the Venturi throat. The ratio of the length of the injection chamber to the diameter of the …
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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 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.