Patents by Inventor John B. Bertolet

John B. Bertolet 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).

  • Circular cut-off saw blade
    Patent number: 6752141
    Abstract: A circular cut-off saw blade with a circular body having a peripheral edge, a plurality of curved slots spaced along the peripheral edge, each slot having an open outer end connecting with the peripheral edge, and defined by essentially parallel, continuously-curved sidewalls leading away from the peripheral edge, and cutting segments fixed to the peripheral edge between each pair of adjacent slots.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: June 22, 2004
    Assignee: PMI, Phoenix Metallurgical Incorporated
    Inventor: John B. Bertolet
  • Circular cut-off saw blade
    Publication number: 20030209125
    Abstract: A circular cut-off saw blade with a circular body having a peripheral edge, a plurality of curved slots spaced along the peripheral edge, each slot having an open outer end connecting with the peripheral edge, and defined by essentially parallel, continuously-curved sidewalls leading away from the peripheral edge, and cutting segments fixed to the peripheral edge between each pair of adjacent slots.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 13, 2003
    Inventor: John B. Bertolet