Device for measuring water flow rate in plant stem
CA 1314732 C · Owner: Kyushu University · Inventors: Kitano, Masaharu; Eguchi, Hiromi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed device includes a heater mounted on a plant stem for generating a heat flow Q so as to give a heat supply (Q-Qo) to water flow in the stem Qo, being heat loss, a means for controlling heat loss Qo or heat dissipation through surfaces of the heater and the plant stem at a constant level, a means for measuring difference of the stem temperature between the upstream and downstream ends of the heater, and a means for determining the water flow rate in the plant stem from the above temperature difference and the input power to the heater.
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 March 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 2010.
- 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.