Patents by Inventor Rolf Hentschel

Rolf Hentschel 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).

  • Apparatus for producing filaments from meltable material
    Patent number: 5423665
    Abstract: An apparatus for producing filaments from meltable material utilizing centrifugal force includes a hollow body (2) rotating at high speed, whose bottom (5) the meltable material strikes from above in the solid state. The wall of the hollow body, shaped as a cylindrical casing, is formed by a heating device (4) which includes metal elements running in a rectangular and helical fashion, such that the interstices of the helix form the discharge openings for the molten material.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: June 13, 1995
    Assignee: Firma Carl Freudenberg
    Inventors: Rolf Hentschel, Harald Schenk, Robert Groten, Achim Gruber