Printing – Intaglio – Bed and platen
Reexamination Certificate
2007-05-01
2007-05-01
Evanisko, Leslie J. (Department: 2854)
Printing
Intaglio
Bed and platen
C101S335000, C101S169000
Reexamination Certificate
active
10774209
ABSTRACT:
An ink supply system is used with a printer of the type in which ink is deposited in an engraved receiving region on a cliché plate and is scraped from the plate leaving ink in the receiving region. The ink supply system includes an ink cup having a hollow interior defining an ink reservoir and defining an outer edge. The outer edge has a doctor blade formed thereon for engaging and scraping the plate. The ink cup has an inlet and an outlet. A pump has a suction side and a discharge side with the suction side in flow communication with the cup outlet for drawing ink from the cup. A viscosity controller is in flow communication with the pump discharge and receives ink from the pump. A flow conduit extends between the viscosity controller and the ink cup for providing a flow of ink from the viscosity controller to the ink cup. The pump draws ink from the cup to create a negative pressure within the cup and the negative pressure within the cup draws ink from the viscosity controller to the ink cup through the flow conduit.
REFERENCES:
patent: 4792292 (1988-12-01), Gaenzle
patent: 5419247 (1995-05-01), Bachmann
patent: 5749293 (1998-05-01), Ota et al.
patent: 6129012 (2000-10-01), Dietz et al.
patent: 2002/0152903 (2002-10-01), Adner
Hessert Danny R.
Kucaba Tracy E.
Schulz Richard H.
Breh Donald J.
Croll Mark W.
Evanisko Leslie J.
Illinois Tool Works Inc.
Levenfeld Pearlstein LLC
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