Patents by Inventor Howard GRAY

Howard GRAY 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: 20210309395
    Abstract: A propulsion system for a spacecraft includes at least one chemical propulsion engine, at least one electrical propulsion engine, and a propellant feed system that includes a propellant supply system including at least one tank to store a common propellant. The propellant supply system is configured to deliver a controlled flow of the common propellant to both the chemical propulsion engine and the electrical propulsion engine. Also disclosed is the use of a common propellant in a spacecraft and a method of providing a common propellant to an electrical and a chemical propulsion engine.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 7, 2021
    Applicant: AIRBUS DEFENCE AND SPACE LIMITED
    Inventors: James Edward SADLER, Vittorio GIANNETTI, Howard GRAY
  • Publication number: 20210309396
    Abstract: A propulsion system for a spacecraft includes at least one electrical propulsion engine comprising at least one neutraliser; and a pressurant gas system comprising a pressurant gas which is fed directly into the at least one neutraliser.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 7, 2021
    Applicant: AIRBUS DEFENCE AND SPACE LIMITED
    Inventors: James Edward SADLER, Vittorio GIANNETTI, Howard GRAY