Method of electrostatically spray coating edge-supported substra

Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...

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118503, 1988038, 198405, 198626, B05B 502

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active

048670995

ABSTRACT:
Apparatus for electrostatic spray coating of plate-like substrates, particularly printed circuit boards, has one or more endless conveyors or one or more conveyors of finite length with one or two pairs of strip-shaped holding elements for the edges of substrates. The holding elements engage a substantial part or the entire edge of the substrate which is transported through one or more spray coating stations. Each holding element is made of or contains an electrically conductive material, and the holding elements are grounded, at least during travel through the coating station or stations. The holding elements can engage the edges of substrates by friction or they are coated with an adhesive so that they adhere to the edges of the substrates.

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