Diverter valve
CA 2299029 A1 · Owner: Livernash, Robert A. · Inventors: Griswold, Jay P.; Swanson, Wesley S.; Livernash, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diverter valve comprises a body defining a first a second, and a third , orifice, a flipper operably positioned to substantially prohibit flow through one of the first, the, second, and the third orifices and a flipper drive mechanism drivably coupled to the, flipper. The flipper drive mechanism comprises a motor a cam drivably coupled , to, the motor and including a cam position indicator a follower drivably coupled , to the, cam translating rotational motion of the cam into reciprocal motion to drive the, flipper, and a motor control circuit in sensory communication with the cam position, indicator. The motor control circuit couples an external source of electrical power to, 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
- Filed February 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2022.
- 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.