Doctoring ink cup
AssigneeMarkem Corporation
InventorsRobert B. Scheuhing, Edward H. Wilson, Jr.
Life of this patent
Estimating the term…
Abstract
A doctoring ink cup for containing and applying ink to an engraved image on a printing plate includes a flexible doctoring cup drawn from a sheet of spring steel. The doctoring cup has rim forming a doctoring edge for wiping excess ink from the printing plate. A cup shaped stiffening member is bonded to the doctoring cup for stiffening the doctoring cup.
Claims18
A doctoring ink cup comprising:
- a flexible doctoring member of sheet metal, the doctoring member being cup shaped and having a rim forming a doctoring edge;
- and
- a stiffening member assembled in engagement with the doctoring member for stiffening the doctoring member against lateral flexing.
A doctoring ink cup comprising:
- a flexible cup shaped doctoring member drawn from sheet metal, the doctoring member having a rim forming a doctoring edge;
- and
- a cup shaped stiffening member bonded to the doctoring member for stiffening the doctoring member against lateral flexing, the doctoring member being bonded within the stiffening member.
A doctoring ink cup comprising a cup shaped doctoring member drawn from sheet metal.
A doctoring ink cup in a pad-type printing system comprising:
- a flexible doctoring member of sheet metal, the doctoring member being cup shaped and having a rim forming a doctoring edge;
- and
- a stiffening member assembled in engagement with the doctoring member for stiffening the doctoring member against lateral flexing.
A doctoring ink cup in a pad-type printing system comprising:
- a flexible cup shaped doctoring member drawn from sheet metal, the doctoring member having a rim forming a doctoring edge;
- and
- a cup shaped stiffening member bonded to the doctoring member for stiffening the doctoring member against lateral flexing, the doctoring member being bonded within the stiffening member.
A doctoring ink cup in a pad-type printing system comprising a cup shaped doctoring member drawn from sheet metal.
An ink cup holder for pressing a cup shaped doctoring ink cup against a printing plate, the ink cup having a rim forming a doctoring edge, the ink cup holder comprising a recess in the ink cup holder for receiving and retaining the ink cup, the recess having a surface with a protrusion extending into the recess at a central location of the recess for pressing against the center of the ink cup such that the doctoring edge is evenly pressed against the printing plate.
Dependencies are inferred from the claim text.