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Expired Canadian patentCanada

Method and apparatus for disinfecting water by hypochlorite produced by electrochemically converting salt

CA 1263095 C · Owner: Rossler, Peter · Inventors: Rossler, Peter; Fabian, Peter; Gundling, Manfred

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Abstract From the Canadian patent

In known processes and corresponding apparatus for water disinfection/sterilization, a hypochlorite solution is produced electrochemically by means of an electrolytic cell and dosed to the water to be disinfected. The invention is aimed at inexpensive production, under specific conditions, of a hypochlorite solution using such process and apparatus and at the, provision of a process and an apparatus particulary suitable for the production of small amounts of a hypochlorite solution in an intermittent operation. To this end, the method of this invention provides that water that is to be mixed with stocked-up brine is taken directly from a conduit in which a constant pressure is maintained, …

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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 November 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 21, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 1985
GrantedNovember 21, 1989
Term endedNovember 21, 2006
Patent numberCA 1263095 C
Classification (IPC)C02F1/46 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMarch 21, 1985Patent grantedNov 21, 1989Term endedNov 21, 2006

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.