Patents by Inventor Russell Thomas Kohl

Russell Thomas Kohl 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).

  • Publication number: 20150224588
    Abstract: A circular saw blade includes a generally flat disk with a cutting periphery defined by a plurality of carbide teeth arranged in spaced relation around the perimeter of the disk and projecting radially outwardly from the disk. Each tooth of the cutting periphery includes a pair of spaced-apart primary side faces, a cutting face having a cutting edge with a top bevel angle within the range of at least 25 degrees to about 50 degrees, and at least two secondary side faces. Each secondary side face extends between the cutting face and a respective one of the pair of primary side faces and has a relief angle relative to the immediately adjoining primary side face. The circular saw blade is ably suited to provide a smooth cutting finish without splintering of the top and bottom edges in connection with a wide variety of cuts, including crosscutting and ripcutting.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 13, 2015
    Inventor: Russell Thomas Kohl
  • Patent number: 8381625
    Abstract: A circular saw blade includes a substantially planar main body having an essentially circular periphery in which are formed a plurality of annularly spaced tip support portions, and a plurality of cutting tips affixed by brazing to the tip support portions of the main body. Each cutting tip has a mounting base formed with at least two locking surfaces along which the brazing affixes the mounting base to a respective tip support portion. The locking surfaces are configured and located in relation to one another and to the main body for counteracting forces which act against the cutting tip in differing directions in the plane of the main body during rotational cutting operation of the blade.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: February 26, 2013
    Assignee: Freud America, Inc.
    Inventors: Davide Lizzi, Russell Thomas Kohl, Frederick Clifford Paddock
  • Publication number: 20110197736
    Abstract: A circular saw blade comprises a substantially planar main body having an essentially circular periphery in which are formed a plurality of annularly spaced tip support portions, and a plurality of cutting tips affixed by brazing to the tip support portions of the main body. Each cutting tip has a mounting base formed with at least two locking surfaces along which the brazing affixes the mounting base to a respective tip support portion. The locking surfaces are configured and located in relation to one another and to the main body for counteracting forces which act against the cutting tip in differing directions in the plane of the main body during rotational cutting operation of the blade.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 18, 2011
    Applicant: Freud America, Inc.
    Inventors: Davide Lizzi, Russell Thomas Kohl, Frederick Clifford Paddock
  • Publication number: 20080307941
    Abstract: A circular saw blade includes a generally flat disk with a cutting periphery defined by a plurality of carbide teeth arranged in spaced relation around the perimeter of the disk and projecting radially outwardly from the disk. Each tooth of the cutting periphery includes a pair of spaced-apart primary side faces, a cutting face having a cutting edge with a top bevel angle within the range of at least 25 degrees to about 50 degrees, and at least two secondary side faces. Each secondary side face extends between the cutting face and a respective one of the pair of primary side faces and has a relief angle relative to the immediately adjoining primary side face. The circular saw blade of the present invention is ably suited to provide a smooth cutting finish without splintering of the top and bottom edges in connection with a wide variety of cuts, including crosscutting and ripcutting.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Applicant: Freud America, Inc.
    Inventor: Russell Thomas Kohl