Patents by Inventor James T. Blair

James T. Blair 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: 20240066743
    Abstract: A chainsaw chain includes a plurality of drive links, a plurality of cutters, and a plurality of rivets. Each drive link includes a drive link body, a rivet hole extending through the drive link body, and a tang configured to engage a drive element of a chainsaw. Each cutter includes a cutter body having a rivet hole extending therethrough, a cutting tooth coupled to an upper portion of the cutter body, a carbide cutting tip coupled to the cutting tooth, a feed limiter coupled to the upper portion of the cutter body and spaced from the cutting tooth, and a gullet defined between the cutting tooth and the feed limiter. The plurality of rivets is received within corresponding rivet holes of the plurality of drive links and the plurality of cutters, to couple the plurality of drive links and the plurality of cutters together.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventors: Carter A. Gibson, Peter R. Heath, John J. Springer, Ian H.A. Blair, Scott T. Moeller, James E. Pangerc
  • Publication number: 20240066744
    Abstract: A chainsaw chain includes a plurality of drive links, a plurality of cutters, and a plurality of rivets. Each drive link includes a drive link body, a pair of rivet holes extending through the drive link body, and a tang extending from the drive link body and configured to engage a drive element of a chainsaw. Each cutter includes a cutter body having a pair of rivet holes extending therethrough, a cutting tooth coupled to an upper portion of the cutter body, a feed limiter, and a gullet. The cutter body defines a longitudinal axis extending through the pair of rivet holes and a vertical axis oriented perpendicular to the longitudinal axis. The cutting tooth is set relative to the vertical axis. The plurality of rivets couples the plurality of drive links and the plurality of cutters together.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventors: Carter A. Gibson, Peter R. Heath, John J. Springer, Ian H.A. Blair, Scott T. Moeller, James E. Pangerc
  • Patent number: D341416
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 16, 1993
    Inventor: James T. Blair