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US 12,097,694 B2Granted
Ink supply system
AssigneeBobst Bielefeld GmbH
InventorMichael Karakatsanis
Life of this patent
Estimating the term…
Abstract
An ink supply system (10) comprises an ink chamber (12); an ink line (14) with a Venturi nozzle (16), wherein the ink chamber (12) has an inlet (18), which is connected to the ink line (14) upstream of the Venturi nozzle (16), and an outlet (24), which is connected to the suction side of the Venturi nozzle (16); an ink reservoir (30) from which the ink is transferred by a pump (28) to the inlet (18) and into the ink line (32); and an ink return line (32), which connects the downstream end of the Venturi nozzle (16) with the ink reservoir (30).
Claims13
An ink supply system, comprising:
- an ink chamber;
- an ink line with a Venturi nozzle, wherein the ink chamber has an inlet, which is connected to the ink line upstream of the Venturi nozzle, and an outlet, which is connected to a suction side of the Venturi nozzle;
- an ink reservoir from which ink is transferred by a pump to the inlet and into the ink line;
- and
- an ink return line, which connects a downstream end of the Venturi nozzle with the ink reservoir,
- wherein the ink chamber is configured to guide the ink to flow through the ink chamber in two oppositely disposed directions, and
- wherein the ink chamber comprises a boundary that maintains a constant level of ink in the ink chamber and guides the ink to flow in the two oppositely disposed directions.
4 more elements
An ink supply system, comprising:
- an ink chamber including an inlet, an outlet, and a boundary at the outlet of the ink chamber;
- an ink line with a Venturi nozzle, wherein the inlet of the ink chamber is connected to the ink line upstream of the Venturi nozzle and the outlet of the ink chamber is connected to a suction side of the Venturi nozzle;
- an ink reservoir from which ink is transferred by a pump to the inlet and into the ink line;
- and
- an ink return line, which connects a downstream end of the Venturi nozzle with the ink reservoir,
- wherein ink must flow around a first side of the boundary to enter the suction side of the Venturi nozzle, and
- wherein the ink chamber further includes a cleaning valve positioned at a second side, opposite to the first side, of the boundary.
4 more elements
Dependencies are inferred from the claim text.