Patents by Inventor Max Cerny

Max Cerny 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).

  • Cutting tool assembly and cutting tool bit
    Patent number: 5733073
    Abstract: A cutting tool assembly with a clamping mechanism for releasably clamping a tool bit (18) on a tool holder (10) is disclosed. The tool holder (10) defines an elongated planar seating surface (12) with a socket (14) on its forward end and a threaded bore (20) on its rear end. A further threaded bore (22) is provided in the seating surface intermediate the forward and rearward ends. A conical tool bit (18) forms a circular cutting edge (52) and has a shank (16) adapted to be received in the socket (14). An elongated bar-shaped clamping member (32) has one end engaging in a circumferential groove (28) of the tool bit (18). The opposite end of the clamping member (32) has arcuate concave surface portion (32b) for abutment with the conical surface on a tapered head (34) of an adjustment screw (36) engaged in the threaded bore (20) of the seating surface (12).
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 31, 1998
    Assignee: Kennametal Inc.
    Inventors: Wolfgang Zitzlaff, Max Cerny