Patents by Inventor David John Swaffield

David John Swaffield 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: 9613751
    Abstract: A method of manufacturing a coil support member in which a thermosetting or thermoplastic material is introduced into a mold cavity and hardened, wherein one or more components are positioned within the mold cavity during the manufacturing process before the thermosetting or thermoplastic material is introduced, the components are then embedded in the thermosetting or thermoplastic material and form an integral part of the coil support member, and one or more functional filler materials are added to the thermosetting or thermoplastic material to improve the thermal matching between the integral components and the thermosetting or thermoplastic material.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: April 4, 2017
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LTD
    Inventors: David John Swaffield, Martin Richard Ingles
  • Patent number: 9366277
    Abstract: A mechanical assembly such as a torque transfer strut for a rotating superconducting machine. The torque transfer strut includes a composite tube having a first end received in a clamping fitting, which may include an end housing or lug, a clamping wedge screwed onto a threaded end housing, and an annular clamping member applying a radial clamping force to the first end of the composite tube at ambient temperature. When cooled, shrinkage of the end housing in the axial direction causes the annular clamping member to maintain or increase radial clamping force, causing the clamping wedge to apply increasing radial force to an inner member deflecting outwardly a plurality of axial fingers. The first end of the composite tube remains clamped between the inner member and an outer member, together defining an annular channel receiving the first end of the composite tube.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 14, 2016
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LTD.
    Inventors: Martin Richard Ingles, Joseph Eugene, David John Swaffield
  • Publication number: 20140287927
    Abstract: A method of manufacturing a coil support member in which a thermosetting or thermoplastic material is introduced into a mould cavity and hardened, wherein one or more components are positioned within the mould cavity during the manufacturing process before the thermosetting or thermoplastic material is introduced, the components are then embedded in the thermosetting or thermoplastic material and form an integral part of the coil support member, and one or more functional filler materials are added to the thermosetting or thermoplastic material to improve the thermal matching between the integral components and the thermosetting or thermoplastic material.
    Type: Application
    Filed: October 8, 2012
    Publication date: September 25, 2014
    Applicant: GE Energy Power Conversion Technology Ltd.
    Inventors: David John Swaffield, Martin Richard Ingles
  • Publication number: 20140093302
    Abstract: A mechanical assembly such as a torque transfer strut for a rotating superconducting machine. The torque transfer strut includes a composite tube having a first end received in a clamping fitting, which may include an end housing or lug, a clamping wedge screwed onto a threaded end housing, and an annular clamping member applying a radial clamping force to the first end of the composite tube at ambient temperature. When cooled, shrinkage of the end housing in the axial direction causes the annular clamping member to maintain or increase radial clamping force, causing the clamping wedge to apply increasing radial force to an inner member deflecting outwardly a plurality of axial fingers. The first end of the composite tube remains clamped between the inner member and an outer member, together defining an annular channel receiving the first end of the composite tube.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Applicant: GE Energy Power Conversion Technology Ltd.
    Inventors: Martin Richard Ingles, Joseph Eugene, David John Swaffield