Patents by Inventor Josh Gilbrech

Josh Gilbrech 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).

  • Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills
    Patent number: 10113364
    Abstract: Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills. A transformer with a high permeability core acts as a magnetic switch or saturating inductor to switch high voltage pulses to initiate an electrocrushing arc and lower voltage pulses to sustain the arc. The transformer isolates the lower voltage components from the high voltage pulses, and switches to deliver the low voltage current when the core saturates. The transformer enables impedance matching to the arc during all stages of drilling. The saturation time of the transformer core is the time delay between initiation of delivering the high voltage pulse and initiation of delivering the lower voltage current.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 30, 2018
    Assignee: SDG LLC
    Inventors: William M. Moeny, Josh Gilbrech, Richard Adler
  • METHOD AND APPARATUS FOR ISOLATING AND SWITCHING LOWER VOLTAGE PULSES FROM HIGH VOLTAGE PULSES IN ELECTROCRUSHING AND ELECTROHYDRAULIC DRILLS
    Publication number: 20150083491
    Abstract: Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills. A transformer with a high permeability core acts as a magnetic switch or saturating inductor to switch high voltage pulses to initiate an electrocrushing arc and lower voltage pulses to sustain the arc. The transformer isolates the lower voltage components from the high voltage pulses, and switches to deliver the low voltage current when the core saturates. The transformer enables impedance matching to the arc during all stages of drilling. The saturation time of the transformer core is the time delay between initiation of delivering the high voltage pulse and initiation of delivering the lower voltage current.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: William M. Moeny, Josh Gilbrech, Richard Adler