Patents by Inventor David Penrose

David Penrose 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).

  • Shear resistant rivet and saw chain
    Publication number: 20070125219
    Abstract: A saw chain rivet is provided including a flange, and a hub extending from a side of the flange. A shoulder defined by a junction between the hub and the flange has properties optimized to resist shear forces. The hub may be optimized for ease of rivet head formation.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 7, 2007
    Inventors: Chris Seigneur, David Penrose
  • SHEAR RESISTANT RIVET AND SAW CHAIN
    Publication number: 20070124946
    Abstract: A saw chain rivet is provided including a flange, and a hub extending from a side of the flange. A shoulder defined by a junction between the hub and the flange has properties optimized to resist shear forces. The hub may be optimized for ease of rivet head formation.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 7, 2007
    Applicant: BLOUNT, INC.
    Inventors: Chris Seigneur, David Penrose, Michael Goettel