Patents by Inventor Walter R. Stringer

Walter R. Stringer 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: 20250375647
    Abstract: A method may include pumping a mercury solution into a disposal well. A system may include a source of aqueous mercury solution, a pump, and a wellhead, wherein the source of aqueous mercury solution is fluidically coupled to the pump and the pump is fluidically coupled to the wellhead.
    Type: Application
    Filed: February 14, 2025
    Publication date: December 11, 2025
    Applicant: VLS Environmental Solutions, LLC
    Inventors: Walter R. Stringer, Christopher J. Lobue, Robert A. Michael, Gilbert D. Valdez
  • Patent number: 6188227
    Abstract: A test system having a bifilar wound isolation network disposed in between a device under test (DUT) and a device under test support system for providing a high isolation impedance to common mode signals present at the input terminals of the isolation network, while still providing a relatively lossless path for differential signals present across the input terminals of the isolation network. The isolation network comprises a plurality of four resonators each having a precise, predetermined number of turns and serially interconnected by a bifilar winding. The bifilar winding allows coupling to the inputs of a balanced DUT and enables a worst case operating environment to be provided for the balanced DUT to assist in testing and/or design of the DUT so as to minimize the effects on the DUT of electromagnetic interference and to assist in modifying the balanced DUT so as to immunize it from susceptible EMI receptors therewithin.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Chrysler Corporation
    Inventors: James J. Yuzwalk, Walter R. Stringer