Ink applicator for printing roller
AssigneeKBA-Metronic AG
InventorsJosef Kleinschnitz, Frank Kirchner
Life of this patent
Estimating the term…
Abstract
A printing roller has an outer surface and is rotatable in a rotational sense about a roller axis. A liquid applicator has an upstream blade having an edge engageable with the roller surface and a downstream blade having an edge engageable with the roller surface downstream in the sense from the upstream-blade edge. The blades form a compartment fillable with a liquid to be applied to the roller outer surface. The upstream blade is shifted on rotation of the roller between an engaged position with the respective edge engaging the surface and a disengaged position with the respective edge spaced radially from the surface.
Claims15
In combination with a printing roller having an outer surface and rotatable in a rotational sense about a roller axis, a liquid applicator comprising:
- an upstream blade having an edge engageable with the roller outer surface;
- a downstream blade having an edge engageable with the roller outer surface downstream in the sense from the upstream-blade edge, the blades forming a compartment fillable with a liquid to be applied to the roller outer surface;
- and
- means for shifting the upstream blade on rotation of the roller between an engaged position with the respective edge engaging the roller outer surface and a disengaged position with the respective edge spaced radially from the roller outer surface and for moving the upstream-blade edge between an open position spaced from the downstream-blade edge and a closed position engaging the downstream-blade edge.
Dependencies are inferred from the claim text.