Chemical solution dispenser apparatus and method of using
CA 1291006 C · Owner: Ecolab Inc. · Inventors: Lehn, Chris F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic dispenser for dispensing solid chemicals used in cleaning processes which includes (i) means for initiating dispensing of a concentrated chemical solution, (ii) means for forming a concentrated chemical solution, (iii) means for directing the concentrated chemical solution to its utilization point (iv) means for measuring the conductivity and temperature of the concentrated chemical solution dispensed (v) means for calculating the amount of chemical dispensed based upon the conductivity and temperature of the concentrated chemical solution dispensed and (vi), means for terminating formation of the concentrated chemical solution when a predetermined amount of chemical has been …
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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.