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Expired Canadian patentCanada

Air turbine drive for electrostatic spray gun

CA 1212226 A · Owner: Graco Inc. · Inventors: Mommsen, Gordon V.

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

An electrostatic spray gun having a rotatable voltage generator for providing electrical energy at low voltage for conversion within the spray gun into electrostatic high voltage energy, wherein a rotating voltage generator is driven by an air turbine under the influence of a pressurized input air supply the, pressurized air passing through conduits in the handle of the spray gun, an air valve actuated by a trigger an, air flow regulator, and into impinging contact against rotatable turbine blades. The air supply is exhausted from the spray gun through internal passages which provide cooling air to the electrical components within the spray gun, and through further passages opening from 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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 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.
FiledJune 28, 1984
GrantedOctober 7, 1986
Term endedOctober 7, 2003
Patent numberCA 1212226 A
Classification (IPC)B05B5/08 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJune 28, 1984Patent grantedOct 7, 1986Term endedOct 7, 2003

Sources & verification

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