Patents by Inventor Emma Louise Innes

Emma Louise Innes 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).

  • Electrical circuit protection system
    Patent number: 7268991
    Abstract: A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The inductor is designed to be inefficient or lossy when the inductor core is magnetised. Magnetisation of the core only occurs when a rapid change in voltage is applied across the inductor coils. Because the inductor is inefficient, the induced impedance in the inductor increases rapidly during a fault event. The overall impedance of the circuit increases rapidly and the rapid change in voltage is dissipated at a rate associated with the CR constant of the circuit.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: September 11, 2007
    Assignee: E2V Technologies (UK) Limited
    Inventors: Emma Louise Innes, Stephen Mark Iskander
  • Electrical circuit protection system
    Publication number: 20040218333
    Abstract: A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The inductor is designed to be inefficient or lossy when the inductor core is magnetised. Magnetisation of the core only occurs when a rapid change in voltage is applied across the inductor coils. Because the inductor is inefficient, the induced impedance in the inductor increases rapidly during a fault event. The overall impedance of the circuit increases rapidly and the rapid change in voltage is dissipated at a rate associated with the CR constant of the circuit.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 4, 2004
    Inventors: Emma Louise Innes, Stephen Mark Iskander