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Expired Canadian patentCanada

Platen arrangement for hot melt ink jet apparatus

CA 1318547 C · Owner: Spectra, Inc. · Inventors: Creagh, Linda T.; Schaffer, Robert R.; Spehrley, Charles W. Jr.

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Abstract From the Canadian patent

Platen Arrangement for Hot Melt Ink Jet Apparatus Abstract, In the particular embodiment described in the specification, a hot melt ink jet system includes a temperature-controlled platen (16) provided with a heater (25) and a thermoelectric cooler (28) electrically connected to a heat pump (26) and a temperature control unit (22) for controlling the operation of the heater and the heat pump to maintain the platen temperature at a desired level. The apparatus also includes a second thermoelectric cooler (35) to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An …

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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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 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.
FiledSeptember 6, 1988
GrantedJune 1, 1993
Term endedJune 1, 2010
Patent numberCA 1318547 C
Classification (IPC)B41J2/17 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 6, 1988Patent grantedJune 1, 1993Term endedJune 1, 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.