Automatic concentrate fertilizer injection system
CA 1325464 C · Owner: Biller, Eckhard H. · Inventors: Biller, Eckhard H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic concentrate fertilizer injection system for fertilizing plants in a greenhouse. Water is pumped through a combination pressure damper and flow stabilizer for regulating the water to a continuous flow. Concentrated fertilizer is injected into the continuous flow of water at a first predetermined rate of injection, and concentrated acid is injected into the flow of water at a second predetermined rate of injection. The water, acid and fertilizer are combined within a mixing chamber to produce a diluted fertilizer mixture. A desired p/H level and fertilizer solubility (i.e. concentration) level is programmed into a control unit of the system. The diluted fertilizer mixture flows …
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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 December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 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.