Specialty Coating Systems, Inc.

Union Carbide Chemicals & Plastics Technology Corporation

Joseph H Yira

Mark Neitzke

Craig K Mattison

William F Beach

A mobile cellular tumble coater and method is provided to coat articles with materials suitable for coating by vapor deposition under vacuum conditions. The mobile cellular tumble coater comprises multiple mobile part cells disposed on a hollow cylindrical chamber of an inner support base positioned within a coating chamber of a coating apparatus. Each mobile part cell comprises a hollow portion with an outer wall having multiple through holes large enough to permit vapors of coating material to flow into the mobile part cell and small enough to contain the articles therein. In an embodiment of invention, the mobile part cells are removably attached to the inner support base by rigid cables in such a manner that enables the mobile part cells to swing from the inner support base. As the inner support base rotates during the coating process, the mobile part cells attached thereon are propelled away from the inner support base until downward rotation causes the mobile part cells to collide with the inner support base. Such collision produced mechanical agitation causes the articles contained within the mobile part cells to remain in a sufficiently mobile state during the coating process such that the articles do not stick together or become coated together.

Mobile cellular tumble coater

A mobile cellular tumble coater and method is provided to coat articles with materials suitable for coating by vapor deposition under vacuum conditions. The mobile cellular tumble coater comprises multiple mobile part cells disposed on a hollow cylindrical chamber of an inner support base positioned within a coating chamber of a coating apparatus. Each mobile part cell comprises a hollow portion with an outer wall having multiple throughholes large enough to permit vapors of coating material to flow into the mobile part cell and small enough to contain the articles therein. In an embodiment of invention, the mobile part cells are removably attached to the inner support base by rigid cables in such a manner that enables the mobile part cells to swing from the inner support base. As the inner support base rotates during the coating process, the mobile part cells attached thereon are propelled away from the inner support base until downward rotation causes the mobile part cells to collide with the inner support base. Such collision produced mechanical agitation causes the articles contained within the mobile part cells to remain in a sufficiently mobile state during the coating process such that the articles do not stick together or become coated together.

Mobile cellular tumble coating method

A method is provided for inducing fluorescence in films or coatings comprised in whole or in part of parylene which involves exposure of the parylene to an active plasma. A method is also provided which utilizes plasma induced fluorescence as a means for quality control inspection of films and coatings of parylene such as those contained on electronic components or for identification and/or authentication of various articles.

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Amery, WI, United States of America

Joseph H Yira