Heated roller
AssigneeEduard Kusters Maschinenfabrik GmbH & Co. KG
InventorKlaus Kubik
Life of this patent
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Abstract
A roller which can be heated, has a cylindrical roller body which turns about its axis and has a first hollow arrangement and a second hollow arrangement in the form of several channels closed on their ends which run parallel to the axis and which are separated from one another and are of uniform volume. In the first arrangement, an electric radiant heating device is arranged on the roller along its longitudinal direction at least over the working area of the roller. The longitudinal channels of the second hollow arrangement are partly filled with a liquid heated to vaporizing by the heating device.
Claims9
A heated roller, comprising:
- a cylindrical roller body having an axis about which it can rotate, the roller body having an outer cylindrical working surface axially extending along a working width;
- a first cavity located inside the roller body;
- an electrical radiant heating system inside the first cavity and extending lengthwise over the length of the roller over at least the working width of the roller;
- and
- a second cavity arrangement of several elongated channels extending along axes parallel to the axis of the roller body, the elongated channels being separate from one another, and evenly distributed over a circumferentially extending arc of the roller body, wherein the channels have ends at which they are sealed and wherein the channels are partially filled with a fluid that evaporates at the temperature produced by the heating system.
Dependencies are inferred from the claim text.