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Expired Canadian patentCanada

System for dispensing of both water base and organic solvent base coatings

CA 1316342 C · Owner: Abb Flexible Automation Inc. · Inventors: Scharfenberger, James A.; Cox, Jack L.

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 electrode (60) for electrically charging dispensed coating material is electrically substantially isolated from the coating material dispensing device (16). Sources provide first (30-36) and second (70-76) coating materials, the first (30-36) of which is electrically substantially more conductive and the second (70-76) of which is electrically substantially less conductive. The first (30-36) or the second (70-76) coating material is alternately supplied to the coating material dispensing device (16). A high-magnitude electrostatic potential supply (58) provides electrostatic high potential to the electrode (60) and selectively to the coating material dispensing device (16). 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 April 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 20, 2010.
  • 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 16, 1989
GrantedApril 20, 1993
Term endedApril 20, 2010
Patent numberCA 1316342 C
Classification (IPC)B05B5/04 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 16, 1989Patent grantedApril 20, 1993Term endedApril 20, 2010

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