Abstract:
Apparatus for the coating of glass containers (212) has a series of vertical slots (202) for applying coating chemicals to a hot glass jar with a minimal neck and shoulder area. An opposing horizontal slot (210) exhausts spent coating material and reactants in a laminar flow. A center section (230) provides a current of gas without chemicals parallel to the coating stream, and flowing with low velocity relative to the coating stream, but with high velocity relative to the extraneous turbulent and convection currents.
Abstract:
Improved apparatus for coating containers having a minimal separation between the body and the finish region comprises a coating hood and means for supplying coating materials to the coating. The improvement consists of a controlled non-turbulent air supply (18) directed downward across the coating-material stream (12). A blower (19) provides process air to a plenum (22), and an angled attenuator plate with a plurality of small holes distributes the process air evenly, to avoid standing waves and regions of high or low air velocity. Several attenuator plates can be juxtaposed to permit removal of particulates by movement of the plates relative to each other.
Abstract:
Improved apparatus for coating containers having a minimal separation between the body and the finish region comprises a coating hood and means for supplying coating materials to the coating. The improvement consists of a controlled non-turbulent air supply (18) directed downward across the coating-material stream (12). A blower (19) provides process air to a plenum (22), and an angled attenuator plate with a plurality of small holes distributes the process air evenly, to avoid standing waves and regions of high or low air velocity. Several attenuator plates can be juxtaposed to permit removal of particulates by movement of the plates relative to each other.