Method and apparatus for coating a decorative workpiece

Details Method and apparatus for coating a decorative workpiece Method and apparatus for coating a decorative workpiece

C - Chemistry, Metallurgy

09

D

C09D 1/06 (2006.01) B28B 11/04 (2006.01) B28B 19/00 (2006.01) B29C 31/00 (2006.01) B29C 37/00 (2006.01) B29C 63/04 (2006.01) B32B 5/02 (2006.01) E04F 13/00 (2006.01)

Patent

CA 2229933

A method and apparatus is provided for applying a plaster-like coating material under pressure to the decorative exposed surface of a moulded workpiece. The apparatus comprises a means for advancing a workpiece in a straight horizontal plane through said apparatus, means for engaging a workpiece to constrain movement as it passes through said apparatus, and means for applying a plaster-like coating material to a decorative surface of an advancing workpiece, wherein the coating means also has a means for providing a desired controlled thickness of a coating material onto the decorative exposed surface of an advancing workpiece. Both the method and apparatus provide on a consistent basis, a smooth coating with a controlled thickness tightly bonded to the entire exposed decorative surface of a workpiece. The method and apparatus avoid the problems of having air bubbles, cracks or an uneven thickness of coating material left on the coated workpiece. The method and apparatus provide a simple, efficient, cost effective and reliable means for applying a plaster-like coating to the exposed decorative surface of a workpiece such that they can be coated and used widely on a commercial scale in the construction industry.

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