US 5,209,179 AGranted

Liquid coating apparatus for use in conjunction with printing presses where access of the coating apparatus to the press cylinders is restricted

AssigneeHerbert Products, Inc.

InventorsJohn C. Herbert, Frank A. Andaloro

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Abstract

A liquid coating apparatus capable of applying a liquid coating fluid to a workpiece traveling over a press cylinder rotatably mounted in a printing press is provided. The coating apparatus includes an applicator means which communicates with the press cylinder to form a nip site when the coating apparatus is in a operative position. The applicator means transfers the liquid coating fluid from the coating apparatus to a workpiece that has been caused to travel through the nip site. The applicator means includes an endless coating plate belt driveably mounted upon two support rollers, thereby affording communication of the endless coating plate belt with a press cylinder which has limited access to its surface.

Claims16

Dependent claims

A liquid coating apparatus capable of operating in conjunction with a printing press having at least one press cylinder, the cylinder rotatably mounted within the press and having at least one gripper mechanism, the apparatus capable of applying a liquid coating fluid to a workpiece traveling over the press cylinder and comprising:

a driveable support means suitable for supporting a belt, the support means including a first and a second roller both rotatably mounted within the apparatus, at least one of the rollers being drivingly coupled to a drive means;
an endless coating plate belt for transferring the liquid coating fluid from the coating apparatus to the workpiece, the endless coating plate being trained about the first and second rollers and driveable by the rollers and supported thereon, the belt including at least three openings distributed transversely across the width of the belt;
drive means for driving the support means, thereby causing the endless coating plate belt to be driven about the first and second rollers;
supply means for supplying the liquid coating fluid to the endless coating plate belt;
and
metering means for metering the supply of liquid coating fluid supplied to the endless coating plate belt.

3 more elements

An assembly including a printing press, a coating apparatus capable of operating in conjunction with the printing press and means for moving the coating apparatus into an adjoining relationship with the press so as to form a nip site through which workpieces can travel, the printing press having at least one press cylinder rotatably mounted within the press, the coating apparatus being capable of applying a liquid coating fluid to a workpiece traveling over the press cylinder, the coating apparatus comprising:

a driveable support means suitable for supporting a belt, the support means including a first and a second roller both rotatably mounted within the apparatus, at least one of the rollers being drivingly coupled to a drive means;
an endless coating plate belt for transferring the liquid coating fluid from the coating apparatus to the workpiece at the nip site, the endless coating plate belt being trained about the first and second rollers and driveable by the rollers and supported thereon, the belt including at least one opening formed therein, the opening configured and dimensioned to accommodate passage of the gripper mechanism therethrough;
drive means for driving the support means, thereby causing the endless coating plate belt to be driven about the first and second rollers;
supply means for supplying the liquid coating fluid to the endless coating plate belt;
and
metering means for metering the supply of liquid coating fluid supplied to the endless coating plate belt.

3 more elements

Dependencies are inferred from the claim text.