Patents by Inventor Sam Donald Nehmey

Sam Donald Nehmey 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).

  • Multiple strand die head
    Patent number: 4015926
    Abstract: An extrusion die head for attachment to an extruder wherein the die head has a single inlet bore that is connected to a plurality of outlet orifices via a chamber which spreads out the extrudate which in turn reduces the shape of the extrudate to a thin film via a narrow channel to equalize the pressure. The narrow channel is connected to the plural orifices via tapering passageways to provide an equalization of the flow of the extrudate.
    Type: Grant
    Filed: January 20, 1976
    Date of Patent: April 5, 1977
    Assignee: The B. F. Goodrich Company
    Inventor: Sam Donald Nehmey