Patents by Inventor Dirk Adriaan van Staveren

Dirk Adriaan van Staveren 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).

  • Frictional heat weld
    Patent number: 4093501
    Abstract: A method and apparatus of connecting the ends of a strap of thermoplastic material wrapped about a package comprising, winding a strip from a supply about a package, separating the strap from the supply to define two ends and a free end connected to the supply, positioning the ends in overlapping relation, interposing the said free end between the overlapping ends, applying a pressure force to the two ends and a relative tractive force longitudinally to the free end to create heat until the free end is removed and the two ends are fused to one another.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: June 6, 1978
    Assignee: N. V. Technische Maatschappij Marchand-Andriessen
    Inventor: Dirk Adriaan van Staveren