Patents by Inventor Augustin Vugrin

Augustin Vugrin 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).

  • Guide bushing for rotary tool
    Patent number: 4130372
    Abstract: A rotary tool assemblage includes an axially movable rotary tool and apparatus for holding a workpiece for engagement by the tool. A guide bushing is rotatably supported and interposed between the tool and the workpiece to guide and pilot the tool. The guide bushing and tool are rotationally interlocked to preclude relative rotational movement therebetween.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: December 19, 1978
    Inventor: Augustin Vugrin