Patents by Inventor Hendrik W. Veen

Hendrik W. Veen 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).

  • Distributor head for forming a tubular profile from one or more streams of extruded thermoplastic material
    Patent number: 5620714
    Abstract: A distributor head (1) for forming a tubular profile from one or more streams of thermoplastic material, which distributor head comprises at least an inlet orifice (10, 12, 14) for a stream of plastics material, which can be connected to an extruder, and an outlet orifice (20, 22, 24) of annular cross section. The distributor head comprises at least one flow channel system (30, 32, 34) which is connected to an inlet orifice of the distributor head by means of an inlet channel (36, 38, 40), which inlet channel, in a number of stages of branchings and intermediate flow channels (60, 62, 64), branches into a number of outlet channels (66, 68, 70) terminating on a periphery around the center line of the outlet orifice, which outlet channels open into the outlet orifice.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: April 15, 1997
    Assignee: Machinefabriek "de Rollepaal" B.V.
    Inventor: Hendrik W. Veen