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Expired Canadian patentCanada

Liquid spray gun having quick change pattern control

CA 1214931 A · Owner: Nordson Corporation · Inventors: Sharp, William J.; Simashkevich, Richard M.

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

Abstract of the Disclosure, A liquid display gun is disclosed wherein a spray pattern control valve is located internally of the gun. The spray pattern control valve is in the form of a two position air flow valve movable between a first position wherein low air flow is supplied through the valve to a second position wherein high air flow is provided through the valve. The valve has two adjustable stops operable to fix the low air flow and the high air flow positions of the valve. Manual pressure on the stem of the valve controls movement between the two positions.

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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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 1984
GrantedDecember 9, 1986
Term endedDecember 9, 2003
Patent numberCA 1214931 A
Classification (IPC)B05B1/12 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedSep 11, 1984Patent grantedDec 9, 1986Term endedDec 9, 2003

Sources & verification

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