Patents by Inventor Robert Sterff

Robert Sterff 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).

  • Power supply apparatus for a public entertainment apparatus having electrically driven passenger carriers
    Patent number: 11750136
    Abstract: A power supply apparatus for furnishing short-term peak loads for an electrical drive system, encompassing an AC voltage source and a DC voltage source; a rectifier and a DC voltage conductor section being arranged between the AC voltage source and a connector configuration for electrical connection of the electrical drive system; the rectifier being connected on the input side to the AC voltage source and on the output side to the DC voltage conductor section; the DC voltage source being connected to the DC voltage conductor section in order to transfer electrical energy wherein the DC voltage source is a battery reservoir.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: September 5, 2023
    Assignee: Intrasys Gmbh Innovative Transportsysteme
    Inventors: Tobias Hollmer, Robert Sterff
  • POWER SUPPLY APPARATUS FOR A PUBLIC ENTERTAINMENT APPARATUS HAVING ELECTRICALLY DRIVEN PASSENGER CARRIERS
    Publication number: 20210249982
    Abstract: A power supply apparatus for furnishing short-term peak loads for an electrical drive system, encompassing an AC voltage source and a DC voltage source; a rectifier and a DC voltage conductor section being arranged between the AC voltage source and a connector configuration for electrical connection of the electrical drive system; the rectifier being connected on the input side to the AC voltage source and on the output side to the DC voltage conductor section; the DC voltage source being connected to the DC voltage conductor section in order to transfer electrical energy wherein the DC voltage source is a battery reservoir.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: Tobias Hollmer, Robert Sterff