Fluid flow sensor
CA 1280911 C · Owner: Wilshire Partners · Inventors: Haynes, Joel E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fluid Flow Sensor, Abstract of the Invention A fluid flow sensor comprises a housing having a fluid inlet and a fluid outlet, a measuring chamber in the housing connected at opposite ends to both the fluid inlet and the fluid outlet a, member in the chamber movable between opposite ends of the chamber, and a valve assembly for controlling fluid flow through the housing. The valve assembly is movable between a first position in which it cuts off one end of the chamber from the outlet to that fluid in that end of the chamber acts on the movable member to urge it to the other end of the chamber and a, second position in which it cuts off the other end of the chamber from the outlet so that the …
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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 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2008.
- 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.