Patents by Inventor Jeffrey DeFazio

Jeffrey DeFazio 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).

  • Electrostatic suppression of ion feedback in a microchannel plate photomultiplier
    Patent number: 9425030
    Abstract: A photomultiplier tube having an ion suppression electrode positioned between a photocathode and an electron multiplying device in the photomultiplier tube is disclosed. The ion suppression electrode includes a grid that is configured to provide sufficient rigidity to avoid deformation during operation of the photomultiplier tube. The photomultiplier tube also includes a source of electric potential connected to the electron multiplying device and to the ion suppression electrode to provide a first voltage to the second electrode and a second voltage to the suppression grid electrode wherein the second voltage has a magnitude equal to or greater than the magnitude of the first voltage. A method of making the photomultiplier and a method of using it are also disclosed.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: August 23, 2016
    Assignee: Burle Technologies, Inc.
    Inventor: Jeffrey DeFazio
  • Electrostatic Suppression of Ion Feedback in a Microchannel Plate Photomultiplier
    Publication number: 20140361683
    Abstract: A photomultiplier tube having an ion suppression electrode positioned between a photocathode and an electron multiplying device in the photomultiplier tube is disclosed. The ion suppression electrode includes a grid that is configured to provide sufficient rigidity to avoid deformation during operation of the photomultiplier tube. The photomultiplier tube also includes a source of electric potential connected to the electron multiplying device and to the ion suppression electrode to provide a first voltage to the second electrode and a second voltage to the suppression grid electrode wherein the second voltage has a magnitude equal to or greater than the magnitude of the first voltage. A method of making the photomultiplier and a method of using it are also disclosed.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Inventor: Jeffrey DeFazio