Patents by Inventor Stewart B. Dobson

Stewart B. Dobson 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).

  • Nutsetter
    Patent number: 6820521
    Abstract: A tool for driving headed fasteners has an opening in the tool. The opening is defined by a wall of the tool. The wall has a plurality of flat planar surfaces. The planar surfaces are connected by a connection at the ends of each planar surface to define the opening. Each connection surface has a convex surface continuous with the planar surface. A concave surface is continuous with the convex surface. The convex and concave surfaces define arcs with the arcs having the same radius.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: November 23, 2004
    Assignee: Black & Decker Inc.
    Inventors: Stewart B. Dobson, Malek Abdul Massih
  • Nutsetter
    Patent number: 6354175
    Abstract: A tool for driving headed fasteners has an opening in the tool. The opening is defined by a wall of the tool. The wall has a plurality of flat planar surfaces. The planar surfaces are connected by a connection at the ends of each planar surface to define the opening. Each connection surface has a convex surface continuous with the planar surface. A concave surface is continuous with the convex surface. The convex and concave surfaces define arcs with the arcs having the same radius.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: March 12, 2002
    Assignee: Black & Decker Inc.
    Inventors: Stewart B. Dobson, Malek Abdul Massih
  • Nutsetter
    Publication number: 20020023521
    Abstract: A tool for driving headed fasteners has an opening in the tool. The opening is defined by a wall of the tool. The wall has a plurality of flat planar surfaces. The planar surfaces are connected by a connection at the ends of each planar surface to define the opening. Each connection surface has a convex surface continuous with the planar surface. A concave surface is continuous with the convex surface. The convex and concave surfaces define arcs with the arcs having the same radius.
    Type: Application
    Filed: October 16, 2001
    Publication date: February 28, 2002
    Inventors: Stewart B. Dobson, Malek Abdul Massih
  • Field assembly for an electromagnet
    Patent number: 5250921
    Abstract: The preferred field assembly includes a field shell of generally T-shaped radial cross-section and molded of powdered metal, a plastic bobbin for supporting a multiple turn winding, and a plastic bobbin ring which covers part of the field shell and which helps hold the bobbin in assembled relation with the field shell. The bobbin is formed with a terminal block for supporting electrical leads which extend along grooves in the outboard face of one flange of the bobbin and which, together with the end portions of the winding, extend into potting cavities in the outboard face of the bobbin flange. The bobbin ring includes a cap which interfits with the terminal block to retain the leads. Various embodiments of field shells, bobbins and bobbin rings are disclosed.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: October 5, 1993
    Assignee: Dana Corporation
    Inventors: Kalvin G. Van Laningham, Mark E. Blakeman, Dwight E. Booth, John C. Carlson, Douglas J. Clemens, Stewart B. Dobson, Robert D. Keller