Patents by Inventor William J. Libra

William J. Libra 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).

  • Solar electric hybrid backup power system
    Patent number: 11355959
    Abstract: A device for supplying electrical power including one or more photovoltaic panels includes one or more photovoltaic panels configured to generate electricity. The example device also includes an electric motor electrically operated by electricity generated by the one or more photovoltaic panels, and a generator mechanically coupled to the electric motor. A positive bus bar and negative bus bar are electrically coupled to the generator. At least one secondary battery is electrically coupled to the positive bus bar and negative bus bar. At least one electrical outlet is electrically coupled to the positive bus bar and negative bus bar.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: June 7, 2022
    Inventor: William J. Libra
  • SOLAR ELECTRIC HYBRID BACKUP POWER SYSTEM
    Publication number: 20210184493
    Abstract: A device for supplying electrical power including one or more photovoltaic panels includes one or more photovoltaic panels configured to generate electricity. The example device also includes an electric motor electrically operated by electricity generated by the one or more photovoltaic panels, and a generator mechanically coupled to the electric motor. A positive bus bar and negative bus bar are electrically coupled to the generator. At least one secondary battery is electrically coupled to the positive bus bar and negative bus bar. At least one electrical outlet is electrically coupled to the positive bus bar and negative bus bar.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 17, 2021
    Inventor: William J. Libra
  • Solar electric hybrid backup power system
    Patent number: 10951058
    Abstract: A device for supplying electrical power including one or more photovoltaic panels. An example device includes a primary battery electrically coupled to the photovoltaic panels. An electric motor is electrically coupled to either or both of the primary battery and the photovoltaic panels. A generator is mechanically coupled to the electric motor. A positive bus bar and negative bus bar are electrically coupled to the generator. At least one secondary battery is electrically coupled to the bus bars. At least one electrical outlet electrically coupled to the positive bus bar and negative bus bar. Electrical energy is stored in the at least one secondary battery when the supply from the generator exceeds the demand on the at least one electrical outlet. Electrical energy is discharged from the at least one secondary battery when the demand from the at least one electrical outlet exceeds the supply from the generator.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: March 16, 2021
    Inventor: William J. Libra
  • SOLAR ELECTRIC HYBRID BACKUP POWER SYSTEM
    Publication number: 20190305588
    Abstract: A device for supplying electrical power including one or more photovoltaic panels. An example device includes a primary battery electrically coupled to the photovoltaic panels. An electric motor is electrically coupled to either or both of the primary battery and the photovoltaic panels. A generator is mechanically coupled to the electric motor. A positive bus bar and negative bus bar are electrically coupled to the generator. At least one secondary battery is electrically coupled to the bus bars. At least one electrical outlet electrically coupled to the positive bus bar and negative bus bar. Electrical energy is stored in the at least one secondary battery when the supply from the generator exceeds the demand on the at least one electrical outlet. Electrical energy is discharged from the at least one secondary battery when the demand from the at least one electrical outlet exceeds the supply from the generator.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 3, 2019
    Inventor: William J. Libra