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US 5,313,884 AGranted
Reverse roller coating apparatus
AssigneeColor Communications, Inc.
InventorsStanley Lerner, Steven B. Winter
Life of this patent
Estimating the term…
Abstract
Apparatus for coating a webbing uses rollers in contact with each other. The coating is applied to a first roller and coating thickness is limited by a knife blade. The coating travels to a point of contact with the second roller about which the webbing is wound, and the coating is thereby transferred to the webbing. By controlling the relative speed between the two rollers, the knife blade can be raised or lowered with respect to the first roller to attain greater control over the coating operation.
Claims10
Apparatus for coating a webbing with a liquid coating material, the apparatus comprising:
- a feed roller with an outer surface about which a webbing is adapted to be at least partially wound;
- means for rotating the feed roller;
- a transfer roller adjacent the feed roller, the transfer roller having an outside surface from which the liquid coating material is transferred to a reservoir formed between the fed roller and the transfer roller;
- means for rotating the transfer roller in the same direction as the rotation of the feed roller;
- supply means for supplying the liquid coating material to the outside surface of said transfer roller;
- a doctor blade adjacent the transfer roller surface, downstream of said supply means and spaced upstream from the reservoir for limiting the thickness of the liquid coating material passing in a downstream direction underneath the doctor blade;
- and
- locating means for locating said feed roller adjacent the outside surface of said transfer roller so as to bring webbing wound about said outer surface of said feed roller into contact with the liquid coating material in the reservoir;
- the surface speed of the transfer roller relative to the surface speed of the feed roller being such that the liquid coating material being carried to the reservoir by the transfer roller is sufficient to deposit on the webbing a coating of preselected thickness.
6 more elements
Dependencies are inferred from the claim text.