Patents by Inventor David Scott Penrose

David Scott 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
    Patent number: 7891925
    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: Grant
    Filed: June 18, 2009
    Date of Patent: February 22, 2011
    Assignee: Blount, Inc.
    Inventors: Christopher D. Seigneur, David Scott Penrose, Mike Goettel
  • Shear resistant rivet and saw chain
    Patent number: 7891279
    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: Grant
    Filed: December 4, 2006
    Date of Patent: February 22, 2011
    Assignee: Blout, Inc.
    Inventors: Chris Seigneur, David Scott Penrose, Michael Goettel
  • SHEAR RESISTANT RIVET AND SAW CHAIN
    Publication number: 20090255393
    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: June 18, 2009
    Publication date: October 15, 2009
    Applicant: BLOUNT, INC.
    Inventors: Chris Seigneur, David Scott Penrose
  • Shear resistant rivet and saw chain
    Patent number: 7563064
    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: Grant
    Filed: December 6, 2005
    Date of Patent: July 21, 2009
    Assignee: Blount, Inc.
    Inventors: Chris Seigneur, David Scott Penrose
  • Lightweight chain saw bar
    Patent number: 6427342
    Abstract: A guide bar for a chain saw is provided having an elongate substantially planar main body portion made from a first material and having an opening extending therethrough. An elongate insert made from a second material is configured to fit closely in the opening in the main body portion. The main body portion has a holding mechanism for retaining an end portion of the insert to inhibit release of the end portion of the insert laterally of the main body portion.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: August 6, 2002
    Assignee: Blount, Inc.
    Inventors: Robert H. Breitbarth, David Scott Penrose