Patents by Inventor Dirk Mulder

Dirk Mulder 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).

  • Extrusion head for plastics extruder
    Patent number: 5908642
    Abstract: The extrusion head for plastics extruders includes a die head, which is disposed axially in the extrusion direction downstream from a jaw plate. The die head is divided in an at least approximately radial direction into a main part and an orifice part and the cones of the orifice part can be fixed independently of one another at the respectively adjacent cones of the main part and exchanged for other cones in a rapid operation.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: June 1, 1999
    Assignee: Machinefabriek "De Rollepaal" b.v.
    Inventors: Hendrik Willem Veen, Dirk Mulder