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Expired Canadian patentCanada

Process for the determination of the consumption of printing ink in an offset printing press

CA 1318184 C · Owner: Heidelberger Druckmaschinen Aktiengesellschaft · Inventors: Laubmann, Gerd; Kipphan, Helmut; Rodi, Anton

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Abstract From the Canadian patent

Process for the determination of the consumption of printing ink in an offset printing press. A process is proposed with which the consumption of printing ink in an offset printing press can be determined. The consumption is determined from the settings of the inking-gap openings. These inking-gap openings form the ink-form thickness (SF) that is transferred onto the ink-duct roller. Furthermore the ink-strip width (bF), which is determined by the rotational speed of the ink-duct roller and the, ink-strip length (lF) according to the length of the ink-duct roller are decisive with regard to ink consumption. The data are supplied to the computer of the control desk of a printing press. 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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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 14, 1989
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318184 C
Classification (IPC)B41F31/14 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 14, 1989Patent grantedMay 25, 1993Term endedMay 25, 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.