Patents by Inventor Brian William Callen

Brian William Callen 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).

  • Enhanced performance conductive filler and conductive polymers made therefrom
    Publication number: 20110108775
    Abstract: There is provided a particulate conductive filler which comprises a conductive metal coating formed over a coarse carbon-based core such as graphite between 350 and 1000 microns in size. The conductive filler is used in conjunction with a polymer matrix such as an elastomer typified by silicone elastomer to form composite materials for conductive and electromagnetic interference shielding applications.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Applicant: Sulzer Metco (Canada) Inc.
    Inventors: Brian William Callen, William Kimber Walkhouse
  • Enhanced performance conductive filler and conductive polymers made therefrom
    Publication number: 20070012900
    Abstract: There is provided a particulate conductive filler which comprises a conductive metal coating formed over a coarse carbon-based core such as graphite between 350 and 1000 microns in size. The conductive filler is used in conjunction with a polymer matrix such as an elastomer typified by silicone elastomer to form composite materials for conductive and electromagnetic interference shielding applications.
    Type: Application
    Filed: June 27, 2006
    Publication date: January 18, 2007
    Applicant: Sulzer Metco (Canada) Inc.
    Inventors: Brian William Callen, William Kimber Walkhouse
  • Conductive fillers and conductive polymers made therefrom
    Publication number: 20030113531
    Abstract: A particulate conductive filler which comprises a particulate elastomer polymer core having a conductive metal coating thereon. The conductive filler is uniformly dispersed in an elastomer polymer matrix to form composite materials for conductive applications.
    Type: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Inventors: Karel Hajmrle, Brian William Callen, Jim K. Mah
  • Noble metal clad Ni/C conductive fillers and conductive polymers made therefrom
    Publication number: 20020160193
    Abstract: There is provided a particulate conductive filler which comprises a noble metal coating formed over a non-noble metal coating over an inner carbon-based core. The conductive filler is used in conjunction with a polymer matrix to form composite materials for conductive applications.
    Type: Application
    Filed: February 21, 2001
    Publication date: October 31, 2002
    Inventors: Karel Hajmrle, Jones Y. Zhang, Brian William Callen
  • Enhanced emissivity electrical connector
    Patent number: 6093064
    Abstract: An electrical connector is disclosed for enhancing the thermal emissivity of an electrical connection. An electrical connector, such as a typical C-member and wedge style connector, is provided that is constructed of electrically conductive material and has a surface treatment on the exterior surfaces of the connector that increases emissivity of the connector. Contact surfaces are provided on the connector that are electrically conductive for ensuring electrical continuity within the connector. The surface treatment operates to increase the thermal transfer efficiency within the connector and thereby lower the operating temperature of the connector.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: July 25, 2000
    Assignee: The Whitaker Corporation
    Inventors: Brian William Callen, Roland Sion Timsit