Patents by Inventor Peter Czyzewski

Peter Czyzewski 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).

  • Punch profile for a punch, and the assembly in which the punch is used
    Patent number: 9254526
    Abstract: A punch assembly includes a punch, a sleeve, a draw stud and a die. The punch has a punch profile which provides a cutting edge that has a uniform “sharpness” along entire perimeter of the punch. The punch assembly provides additional punch-to-die clearance over what was done in the prior art. This reduces excessive punching forces which result from axial deflection of the draw stud and “tipping” of a large diameter punch as the draw stud deflects under a load.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: February 9, 2016
    Assignee: Textron Innovations Inc.
    Inventors: William F. Nordlin, Peter Czyzewski
  • Auger bit with interlocking feed screw and cutting insert
    Patent number: 8057135
    Abstract: An auger bit includes a shaft having a central axis, a cutting insert mounted to said shaft, and a feed screw that is separate from the cutting insert and which is mounted to the shaft. The cutting insert and the feed screw are engaged with each other. A single locking member, such as a set screw, secures the feed screw member to the shaft, and thereby secures the cutting insert to the shaft. If the feed screw or the cutting insert become worn, feed screw or the cutting insert can be replaced.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 15, 2011
    Assignee: Greenlee Textron Inc.
    Inventors: William Nordlin, Peter Czyzewski
  • AUGER BIT WITH INTERLOCKING FEED SCREW AND CUTTING INSERT
    Publication number: 20100124467
    Abstract: An auger bit includes a shaft having a central axis, a cutting insert mounted to said shaft, and a feed screw that is separate from the cutting insert and which is mounted to the shaft. The cutting insert and the feed screw are engaged with each other. A single locking member, such as a set screw, secures the feed screw member to the shaft, and thereby secures the cutting insert to the shaft. If the feed screw or the cutting insert become worn, feed screw or the cutting insert can be replaced.
    Type: Application
    Filed: November 19, 2008
    Publication date: May 20, 2010
    Inventors: WILLIAM NORDLIN, PETER CZYZEWSKI
  • Quick change adaptor for hole saw
    Publication number: 20020122703
    Abstract: A quick change adaptor for a hole saw includes an arbor, a collar and a retaining nut. The adaptor allows a hole saw to be easily and efficiently mounted and dismounted to and from the adaptor. When mounted to the adaptor, the hole saw and collar rotate relative to the arbor and the retaining nut. Rotation of the collar and hole saw relative to the retaining nut is limited by the interaction between an arbor boss and a collar recess to provide a drive force to the hole saw.
    Type: Application
    Filed: February 6, 2002
    Publication date: September 5, 2002
    Inventors: Peter Czyzewski, Thomas J. Pearson, Jeffrey J. Plummer, Thomas G. Boese