Patents by Inventor Frederic Muller

Frederic Muller 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).

  • Multi-Piece Piston for a Cold Chamber Casting Machine
    Publication number: 20090139683
    Abstract: A multi-piece piston (1) is disclosed, for fixing to the high pressure side end (3) of a piston rod (5) running axially in a casting cylinder (7) of a cold chamber casting machine. The piston comprises a piston crown (9) forming a piston front face (13) on the high pressure side and a piston body (15) in the form of a bush connected to the piston crown (9) on the low pressure side. The piston body (15) can be connected to the piston crown (9) by means of fixing screws (23) to form a module. Complementary bayonet locking means (25, 27) are provided, for axial fixing of the piston (1) to the end (3) of the piston rod (5), on the piston crown (9) and the end (3).
    Type: Application
    Filed: October 11, 2006
    Publication date: June 4, 2009
    Inventors: Andre Muller, Frederic Muller
  • Electrical power supply suitable in particular for DC plasma processing
    Publication number: 20030021125
    Abstract: A power supply comprising a DC-DC converter which comprises
    Type: Application
    Filed: June 27, 2002
    Publication date: January 30, 2003
    Inventors: Alfred-Christophe Rufer, Claudio Zimmermann, Frederic Muller, Albert Bulliard