Patents by Inventor Walter Bronder

Walter Bronder 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).

  • Sleeve insert mounting for mining pick
    Patent number: 4647111
    Abstract: A rotatable tool which includes a pick carrier having a recess which receives one end of a rod-shaped support secured thereto, an opposite end of the rod-shaped support as a right-cylindrical bore opening axially outwardly of an end face thereof, a pick bit is formed by a shaft having a right-cylindrical bore and a bit-end, and the shaft is received in a split sleeve which in turn is received in the bore to press-fit the bit in the bore.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: March 3, 1987
    Assignee: Belzer-Dowidat GmbH Werkzeug-Union
    Inventors: Walter Bronder, Gerd Spiekers