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US 6,308,623 B1Granted
Meterable screen roller in a rotary printing machine
AssigneeHeidelberger Druckmaschinen AG
InventorsWolfgang Schönberger, Rolf Spilger
Life of this patent
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Abstract
A meterable screen roller having a peripheral surface whereon a multiplicity of printing ink-accepting depressions are disposed includes a respective base for the depressions formed by a resilient material, and respective chambers located underneath and assigned to the depressions, the chambers being actable upon by a pressure medium for respectively enlarging and reducing the volume of the depressions.
Claims13
A meterable screen roller, comprising:
- a roller base member;
- a resilient material located on said roller base member, said resilient material having an outer circumferential surface formed with depressions therein, said depressions having volumes;
- and
- chambers located underneath said depressions and assigned to said depressions;
- said chambers at least partially formed in a component selected from the group consisting of said roller base member and said resilient material;
- said chambers being actable upon by a pressure medium for respectively enlarging and reducing the volumes of said depressions.
3 more elements
Dependencies are inferred from the claim text.