Filament Stretching Apparatus Patents (Class 425/DIG17)
  • Apparatus for producing a nonwoven spun-filament web of aerodynamically stretched filament of a plastic
    Patent number: 5460500
    Abstract: A spun-filament nonwoven web is deposited on a sieve belt from a spinning head producing a curtain of thermoplastic filaments which traverse a cooling chamber by drawing the filaments in a drawing nozzle separate from the cooling chamber and passing the filaments through a delivery unit and in the form of a jet pump, air flow through which is controlled at least in part by a suction blower below that sieve belt.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: October 24, 1995
    Assignee: Reifenhauser GmbH & Co. Maschinenfabrik
    Inventors: Hans G. Geus, Hermann Balk, Bernd Kunze