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Expired Canadian patentCanada

Low pressure pool cleaner

CA 1234258 A · Owner: Arneson Products, Inc. · Inventors: Frentzel, Herman E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure An improved water jet pool cleaner system includes a pool cleaner with a buoyant housing powered about the pool by forward and reverse driving nozzles so dirt and other debris is gathered at the low point on the bottom of the pool by the action of depending cleaner hoses. Water from the filter pump enters a fluid reservoir from which it flows along parallel flow paths to the forward and reverse driving nozzles to a, turbine, and to the cleaner hoses. Pressurized water is directed to the forward and reverse nozzles through a rotary valve which is rotated by the drive train connected to the turbine. The parallel flow paths permits water to be provided to the driving …

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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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 1984
GrantedMarch 22, 1988
Term endedMarch 22, 2005
Patent numberCA 1234258 A
Classification (IPC)B08B9/08 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedOct 12, 1984Patent grantedMarch 22, 1988Term endedMarch 22, 2005

Sources & verification

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