Patents by Inventor Julie A. Willets

Julie A. Willets 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: 7982340
    Abstract: The present invention is an energy generating system for a telecommunications megasite which uses fuel cells and capacitors to backup a commercially available primary source of power.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: July 19, 2011
    Assignee: Sprint Communications Company L.P.
    Inventors: Jerry Meyers, Julie A. Willets, Larry L. Johnson
  • Patent number: 7728458
    Abstract: The present invention is an energy generating system for a telecommunications megasite which uses fuel cells and capacitors to backup a commercially available primary source of power.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: June 1, 2010
    Assignee: Sprint Communications Company L.P.
    Inventors: Jerry Meyers, Julie A. Willets, Larry L. Johnson
  • Patent number: 7635926
    Abstract: The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel cell, commercial electrical power hookups, and capacitors used for bridging purposes. Back-up fuel for the engine and fuel for the fuel cells are stored in propane and hydrogen storage tanks, respectively.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: December 22, 2009
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Larry L. Johnson, Jerry D. Meyers
  • Patent number: 7629707
    Abstract: The present invention is a power system using a reformer/fuel cell arrangement as the primary source of DC power. The reformer is operated on either natural gas or propane. A backup source of power consumes hydrogen which is diffused from a solid medium. On an as-needed basis, the medium is reacted to release hydrogen gas which is consumed by a fuel cell to generate backup DC power. The system also includes Lithium-Metal-Polymer batteries which are used for both bridging and backup purposes.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: December 8, 2009
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Jerry D. Meyers, Larry L. Johnson
  • Patent number: 7615889
    Abstract: The present invention is a modular power system using a fuel cell as a back-up power supply. The system includes lithium-metal-polymer (LMP) batteries to bridge and also for backup power if necessary. The entire system is preassembled ready for use so that it is available to a new or expanding site upon delivery. The total number of modular units used can simply be aggregated to meet additional power demanded.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: November 10, 2009
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Jerry D. Meyers, Larry L. Johnson
  • Patent number: 7615877
    Abstract: The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel cell, commercial electrical power hookups, and capacitors used for bridging purposes. Back-up fuel for the engine and fuel for the fuel cells are stored in propane and hydrogen storage tanks, respectively.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: November 10, 2009
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Larry L. Johnson, Jerry D. Meyers
  • Patent number: 7557531
    Abstract: The present invention is an energy generating system which uses an advanced aqueous-electrolyte energy storage system in conjunction with a commercial available primary source of power and a backup fuel cell.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: July 7, 2009
    Assignee: Sprint communications Company L.P.
    Inventors: Julie A. Willets, Jerry Meyers, Larry L. Johnson
  • Patent number: 7456513
    Abstract: The present invention is a DC power system incorporated into a modular housing. The primary source of power is an electrical utility. Because the electrical utility provides alternating current, the module includes a rectifier which makes the conversion to DC. The module also includes an air turbine which is used as a backup source of power. Also included is an array of lithium-metal-polymer (LMP) batteries to bridge and also for backup power if necessary.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: November 25, 2008
    Assignee: Sprint Communications Company L.P.
    Inventors: Jerry D. Meyers, Julie A. Willets, Larry L. Johnson
  • Patent number: 7352578
    Abstract: The present invention is a back-up power supply of alternating current and direct current, with the alternating current being generated by an inverter from the direct current, which is produced by a fuel cell. The inverter is at least partially encompassed by a phase changing material having an elevated melting point such that the phase changing material absorbs heat generated by the inverter as well as in the surrounding air, thereby maintaining the inverter temperature within acceptable limits. As the phase changing material absorbs the heat, its temperature rises and melts. Upon cooling of the system, the phase change material re-solidifies.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 1, 2008
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Gerald D. Meyers, Larry L. Johnson
  • Patent number: 7245032
    Abstract: The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel cell, commercial electrical power hookups, and capacitors used for bridging purposes. Back-up fuel for the engine and fuel for the fuel cells are stored in propane and hydrogen storage tanks, respectively.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: July 17, 2007
    Assignee: Sprint Communications Company L.P.
    Inventors: Julie A. Willets, Larry L. Johnson, Jerry D. Meyers
  • Patent number: 7157803
    Abstract: The present invention is an energy generating system which uses Lithium Metal Polymer (LMP) batteries in conjunction with a microturbine, a fuel cell, and commercial electrical power. The LMPs provide uninterruptible power when one or more of the other power systems fail.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: January 2, 2007
    Assignee: Sprint Communications Company L.P.
    Inventors: Jerry D. Meyers, Larry L. Johnson, Julie A. Willets
  • Patent number: 7112891
    Abstract: The present invention is a mobile-energy generating system. It comprises a turbine, a fuel cell, commercial electrical power hookups, capacitors used for bridging purposes, and hydrogen-storage tanks. Pressurized hydrogen is maintained in the tanks using a hydrogen liberator which is optionally powered by a solar panel.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: September 26, 2006
    Assignee: Sprint Communications Company L.P.
    Inventors: Larry L. Johnson, Julie A. Willets, Jerry D. Meyers