Siphon starter
CA 1207590 A · Owner: Bowles Fluidics Corporation · Inventors: Stouffer, Ronald D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The partial vacuum produced at the inlet passage of a vortex chamber is employed to move liquid from one compartment to another in order to maintain the level of liquid in at least one of the compartments within a predetermined level of the liquid in the other compartment. In one embodiment, the vortex unit or other suction means develops a partial vacuum at the maximum height of a siphon tube extending between the two chambers, the vacuum drawing fluid from both or at least one of the chambers to the top of the tube thus initiating siphoning. A sump pump having a negative pressure insufficient to lift the liquid to the maximum height of the siphon tube is employed to deliver liquid to a …
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 July 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 2003.
- 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.