Patents by Inventor Hans-Jurgen Schaefer

Hans-Jurgen Schaefer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070141263
    Abstract: Disclosed are a method and a device for coating printed boards (1) with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened. The device used for carrying out said method comprises at least one roller-type coating plant (2) with an application roller (4), a dosing roller (5) that embodies a dosing gap along with the application roller (4), a storage container (6) for the solder stop lacquer or galvanoresist, which is disposed above the roller-type coating plant (2), means for conveying the printed boards (7), means for drying the solder stop lacquer (11), and an apparatus (13) for turning the coated printed boards. Said roller-type coating plant (2) is provided with only one coating unit for coating the bottom side of the printed boards.
    Type: Application
    Filed: October 14, 2003
    Publication date: June 21, 2007
    Inventor: Hans-Jurgen Schaefer