Patents by Inventor Leo F. Casey

Leo F. Casey 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).

  • Publication number: 20170310272
    Abstract: A floating solar power generation system includes a photovoltaic (“PV”) array. The PV array includes a plurality of PV modules mechanically bound together. Each of the PV modules includes solar cells for generating solar power that are embedded within a laminated structure which is compliant to folding or bending in response to wave action on a surface of a waterbody. The laminated structure of each of the PV modules floats in or on the waterbody in intimate contact with the waterbody to cool the solar cells.
    Type: Application
    Filed: July 25, 2016
    Publication date: October 26, 2017
    Inventors: Dominico Julian, Philipp H. Schmaelzle, Leo F. Casey, Mark Greise, Robert Baikie, Thomas P. Hunt, Todd A. Pelman, Garrison J. Buchanan, Raphael J. Feldman, William J. Shields, Justin S. Hyde
  • Publication number: 20170279402
    Abstract: A photovoltaic (“PV”) macro-module for solar power generation includes a plurality of solar cell strings disposed within a laminated support structure. The solar cell strings generate solar power in response to light incident upon a frontside of the solar cell strings. Each of the solar cell strings includes a plurality of solar cells electrically connected in series. The laminated support includes a substrate layer to provide physical environmental protection to a back side of the solar cell strings, a backside encapsulant layer disposed between the substrate layer and the solar cell strings, and a frontside encapsulant layer. The backside encapsulant layer conforms to and molds around the back side of the solar cell strings while the frontside encapsulant layer conforms to and molds around the frontside of the solar cell strings. The laminated support structure is compliant to rolling or folding.
    Type: Application
    Filed: October 24, 2016
    Publication date: September 28, 2017
    Inventors: Philipp H. Schmaelzle, Dominico Julian, Leo F. Casey, Thomas P. Hunt, Todd A. Pelman, Scott W. Aldous, Garrison J. Buchanan, Raphael J. Feldman, William J. Shields, Justin S. Hyde, Duncan W. Harwood
  • Publication number: 20170279002
    Abstract: Methods for fabricating a photovoltaic (“PV”) macro-module for solar power generation are described. The methods form a PV macro-module that includes solar cells embedded into a laminated support structure. The PV macro-module is compliant to folding or rolling.
    Type: Application
    Filed: October 24, 2016
    Publication date: September 28, 2017
    Inventors: Dominico Julian, Philipp H. Schmaelzle, Leo F. Casey, Thomas P. Hunt, Todd A. Pelman, Scott W. Aldous, Garrison J. Buchanan, Raphael J. Feldman, William J. Shields, Justin S. Hyde, Duncan W. Harwood
  • Patent number: 9729101
    Abstract: A method of deploying floating photovoltaic (“PV”) modules on water includes attaching first and second sections of a tensioning frame between a first group of mooring buoys. In a first embodiment, the first and second sections are adjoining sections attached to a common one of the mooring buoys and a plurality of PV modules are unrolled from positions adjacent to the first section of the tensioning frame and the PV modules are extended out from the first section. In a second embodiment, the PV modules are unrolled and extended out between two floating platforms. The PV modules are mechanically attached into a contiguous PV array. Third and fourth sections of the tensioning frame are attached between a second group of the mooring buoys to at least partially surround the PV array with the tensioning frame. Tension on the tensioning frame is adjusted to place the PV array under tension.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: August 8, 2017
    Assignee: X Development LLC
    Inventors: Philipp H. Schmaelzle, Dominico Julian, Leo F. Casey, Mark Greise, Robert Baikie, Thomas P. Hunt, Todd A. Pelman, Garrison J. Buchanan, Raphael J. Feldman, William J. Shields, Justin S. Hyde
  • Patent number: 9318947
    Abstract: A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 19, 2016
    Assignee: Perfect Galaxy International Limited
    Inventors: Colin David Schauder, Leo F. Casey
  • Publication number: 20140153302
    Abstract: A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: Perfect Galaxy International Limited
    Inventors: Colin David Schauder, Leo F. Casey
  • Patent number: 8680720
    Abstract: A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: March 25, 2014
    Assignee: Perfect Galaxy International Ltd.
    Inventors: Colin David Schauder, Leo F. Casey
  • Publication number: 20140049998
    Abstract: A direct current to alternating current converter method and apparatus is disclosed that may comprise a direct current (DC) input source; an alternating current (AC) output inverter circuit, having an input connected across the DC input source; a partial power DC-DC boosting circuit intermediate to the DC input source and the DC input of the inverter stage, configured to increase the input voltage of the DC input source whenever the input voltage falls below a minimum required to synthesize an output waveform of a selected shape and a partial power DC-DC boosting circuit intermediate to the DC input source and the DC input of the inverter stage, configured to increase the input voltage of the DC input source during higher amplitude portions of inverter circuit output voltage waveform.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Inventors: Leo F. Casey, Boris Semenov, Bogdan S. Borowy, Joseph T. Mossoba
  • Publication number: 20120105023
    Abstract: A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: SATCON TECHNOLOGY CORPORATION
    Inventors: Colin David Schauder, Leo F. Casey
  • Patent number: 7545132
    Abstract: Devices and systems that use an adaptively limited PWM duty-cycle to control a circuit and methods and control programs to operate and to control the devices and systems to adaptively limit the PWM duty-cycle are disclosed. The devices and systems are capable of adjusting the duty-cycle such that the actual inductor current in the next cycle is precisely limited. Specifically, a maximum allowable duty-cycle for time interval N+1 is estimated during time interval N. When the duty-cycle is applied to the circuit at time interval N+1, the peak inductor current is kept below a maximum allowable inductor current level.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 9, 2009
    Assignee: Satcon Technology Corporation
    Inventors: Bogdan S. Borowy, Leo F. Casey
  • Patent number: 5150018
    Abstract: The combination of a fluorescent lamp with a grid between its electrodes and control equipment for operating the lamp in an on condition and an off condition by the application of pulses to the grid.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: September 22, 1992
    Assignee: North American Philips Corporation
    Inventors: Gert W. Bruning, Leo F. Casey, Paul R. Veldman, Klaus Vegter
  • Patent number: 4788634
    Abstract: A resonant forward converter at a switching frequency of 10 MHz provides a small volume point-of-load converter for distributed power systems. The leakage inductance of a transformer is made negligibly small relative to the magnetizing inductance of the transformer. This enables a resonant controllable switch on the primary side of a transformer and a secondary side rectified diode to be switched either on or off at the same time. The capacitance across the primary side switch and the secondary side diode rings with a resonant inductor connected in parallel with the transformer. Both the switch and diode, therefore, have zero voltage switching transitions. Further, the resonant inductor being connected in parallel with the transformer provides a resonant ring that is independent of load.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: November 29, 1988
    Assignee: Massachusetts Institute of Technology
    Inventors: Martin F. Schlecht, Leo F. Casey