Patents by Inventor Stephen Mark Fields

Stephen Mark Fields 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).

  • Patent number: 9035503
    Abstract: A stator arrangement particularly suitable for use in an air-cooled generator or other such electric machine includes a stator with an outer stator surface, an opening therein defining an inner stator surface, and longitudinally opposed stator end surfaces. Conductive coils are supported by the stator, and include end turns overlying the longitudinally opposed stator end surfaces. In order to block out environmental contaminants and prevent conductive coil shorting, protective barriers are mounted over the end turns and secured to the stator.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: May 19, 2015
    Assignee: KOLLMORGEN CORPORATION
    Inventors: Bradley A. Trago, Stephen Mark Fields
  • Publication number: 20120267970
    Abstract: An improved fluid cooling arrangement for an electric machine, such as an electric motor, a generator, or a motor/generator assembly, is provided. In its most general sense, the fluid-cooled electric machine includes a rotor disposed on a motor shaft, a stator surrounding the rotor, and a motor housing surrounding the stator, with the stator formed of a laminated stack of stator plates that is plated at its outer surface.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: Kollmorgen Corporation
    Inventors: Ethan FILIP, Ken DILLON, Stephen Mark FIELDS
  • Publication number: 20120267967
    Abstract: A stator arrangement particularly suitable for use in an air-cooled generator or other such electric machine includes a stator with an outer stator surface, an opening therein defining an inner stator surface, and longitudinally opposed stator end surfaces. Conductive coils are supported by the stator, and include end turns overlying the longitudinally opposed stator end surfaces. In order to block out environmental contaminants and prevent conductive coil shorting, protective barriers are mounted over the end turns and secured to the stator.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Applicant: Kollmorgen Corporation
    Inventors: Bradley A. Trago, Stephen Mark Fields