Flow rate meter and automatic animal feeder installation employing such flow meter
CA 1302183 C · Owner: Cooperatieve Condensfabriek "Friesland" W.A. · Inventors: Weerstra, Rienk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
13-, Title:, Flow rate meter and automatic animal feeder installation employing such flow meter. ABSTRACT, A double flow rate meter (1) and an apparatus for automatically feeding animals with liquid food said apparatus comprising the said flow meter (1) for establishing the amount of food consumed said flow, rate meter (1) comprising at least two circular flow passages (2, 20), each containing a ball (11 12) con-, strained to be propelled through the relevant channel by fluid proportionally to the flow velocity of the fluid, said balls (11, 12) thereby passing respective sensors (15, 16), each flow passage (11 12) having, its own inlet conduit (3, 5) and respective outlet conduits (21, 22) …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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
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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.