Fluid flow rate selector
CA 2404213 A1 · Owner: Mickelson, Sammy K. · Inventors: Berkenbosch, Lyle J.; Mickelson, Sammy K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a flow rate selector having a high flow position and a low flow position. The flow rate selector has a flow selector knob, having a web. The web has a flat surface. At least two seals are mounted on the, flat surface of the web. A retaining piece has two orifices of differing crosssectional areas. The flow selector knob is rotatable relative to the retaining piece, such that at least one seal can be aligned with either of the orifices to prevent fluid, flow there through while allowing fluid flow through the other orifice. Cover 656, has conical outside diameter that seals against chamber in 654. This protects chamber 720 from foreign particles.
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 September 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2024.
- 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.