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Expired Canadian patentCanada

Convertible spray nozzle

CA 1291781 C · Owner: Spraying Systems Co. · Inventors: Haruch, James

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 A spray nozzle in which a nozzle body is formed with an elongated chamber having an air inlet port communicating with the side of the chamber a liquid, inlet port communicating with one end of the chamber and a nozzle tip communicating with the opposite end of the chamber. The spray nozzle may be operated in a hydraulic or non-air assisted mode and with a relatively high flow rate by closing off the air inlet port and causing liquid to stream directly from the liquid inlet port to the nozzle tip. The nozzle also may be converted to an air assisted mode in which a stream of pressurized air is injected into the air inlet port and impinges transversely against the …

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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 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 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, 1987
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291781 C
Classification (IPC)B05B7/04 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 9, 1987Patent grantedNov 5, 1991Term endedNov 5, 2008

Sources & verification

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