Patents by Inventor Frank M. Barron

Frank M. Barron 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).

  • Positive adjust driving center
    Patent number: 4125042
    Abstract: A driving center assembly is provided wherein a work engaging center pin has a bore containing a ball compressed against the flat face of a hemispherical member housed in a socket in the drive shank. The center pin passes through a drive plate which is made rigid with a drive plate through push pins which are urged against the hemispherical member thereby allowing the drive plate and pin to tilt for out of square surfaces by insuring that the push pins exert equal pressure in forcing the drive pins into the work piece.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: November 14, 1978
    Inventor: Frank M. Barron