Dampener roll having bristles of longer length at opposite end portions
AssigneeHarris Graphics Corporation
InventorAndre Reponty
Life of this patent
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Abstract
An improved dampener roll is used to transfer dampening fluid from a reservoir to a printing plate in a lithographic printing press. The dampener roll includes an array of bristles which extends between opposite ends of the dampener fountain roll. The array of bristles includes a central portion and first and second end portions which are disposed at opposite ends of the roll. The bristles at the first and second end portions of the array of bristles are longer than the bristles at the central portion of the array of bristles.
Claims4
A dampener roll for use in transferring dampening fluid from a reservoir to a printing plate in a lithographic printing press, said dampener roll comprising a cylindrical base, said base including means for enabling said base to be rotatably mounted in the lithographic printing press adjacent to the reservoir of dampening fluid, an array of bristles connected to said base, said array of bristles circumscribing said base and extending between opposite end portions of said base, said array of bristles including a central portion which is formed of bristles of a first length, a first end portion which is formed of bristles of a length which is greater than said first length, and a second end portion which is formed of bristles of a length which is greater than said first length.
Dependencies are inferred from the claim text.