Immersion coating apparatus

US5681391A · kind A · utility

Assignee

• Xerox Corporation · US

Inventors

• Alan B. Mistrater · Rochester, US
• Steven J. Grammatica · Penfield, US
• Peter J. Valianatos · Rochester, US
• Timothy J. Leenhouts · Fairport, US
• April M. Mattox · Webster, US
• Rachael A. Forgit · Rochester, US
• John S. Chambers · Rochester, US
• Roger T. Janezic · Rochester, US
• Leslie B. Cummins · New Brunswick, US
• Richard C. Petralia · Rochester, US
• Edward C. Williams · Palmyra, US
• Mark S. Thomas · Williamson, US
• John T. Dilko · Fairport, US
• John K. Williams · Atlanta, US

Key dates

• Filing date: Feb 29, 1996
• Grant date: Oct 28, 1997
• Expiry date: Feb 29, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C3/109
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Apparatus for dip coating comprising a drum having an outer surface to be coated, an upper end and a lower end, at least one coating vessel having a bottom, an open top and a cylindrically shaped vertical interior wall having a diameter greater than the diameter of the drum, an inlet at the bottom of the vessel, the inlet adapted to feed flowing coating fluid into the vessel, a mandrel adapted to maintain the outer surface of the drum in a concentric relationship with the vertical interior wall of the cylindrical coating vessel while the drum is immersed in the flowing coating material, the outer surface of the drum being radially spaced from the vertical interior wall of the cylindrical coating vessel, and at least one flow regulating member adapted to maintain laminar flow motion of the coating material as the fluid passes between the outer surface of the drum and the vertical inner wall of the vessel.