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Expired Canadian patentCanada

High pressure washer/field spot sprayer

CA 1292454 C · Owner: Setter, Gregory K. · Inventors: Setter, Gregory K.

CIPO record

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

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Abstract From the Canadian patent

A sprayer serves as a small capacity agricultural or lawn sprayer with spot spraying capacity. It is also used for high pressure spraying, such as a high pressure washer. The sprayer has a cone bottom tank of 2 to 200 gallon capacity which supplies a high pressure pump. A high pressure regulator controls the output of the pump and provides the high pressure supply for a high pressure washing wand. The output of the regulator may also be reduced so that the washing wand can be used for spot spraying. The output of the high pressure regulator is also supplied to a valve which, when opened supplies, liquid to a variable agitator valve for returning water to a jet agitator in the tank. Liquid …

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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 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 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.
FiledDecember 9, 1988
GrantedNovember 26, 1991
Term endedNovember 26, 2008
Patent numberCA 1292454 C
Classification (IPC)B05B9/03

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedDec 9, 1988Patent grantedNov 26, 1991Term endedNov 26, 2008

Sources & verification

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