Patents by Inventor Erich C. VAUGHAN

Erich C. VAUGHAN 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).

  • Hydraulic lock and method for a hydraulic system
    Patent number: 10626890
    Abstract: A hydraulic lock for a hydraulic system includes a flow control valve and a second check valve. The flow control valve having a first inlet, a first outlet, a first check valve and a flow restrictor, each of the first check valve and the flow restrictor being communicably coupled to the first inlet and the first outlet and being arranged in parallel between the first inlet and the first outlet. The second check valve having a second inlet and a second outlet, the second inlet being communicably coupled to the first outlet, the second check valve further having a ball seating surface having an aperture there through, a ball, and a resilient member biasing the ball towards the ball seating surface to seal the aperture, the aperture being communicably coupled to the second inlet and the second outlet.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 21, 2020
    Assignee: The Boeing Company
    Inventors: Michael J. Burghdoff, Mark A. Ulrich, Erich C. Vaughan
  • HYDRAULIC LOCK AND METHOD FOR A HYDRAULIC SYSTEM
    Publication number: 20190376532
    Abstract: A hydraulic lock for a hydraulic system includes a flow control valve and a second check valve. The flow control valve having a first inlet, a first outlet, a first check valve and a flow restrictor, each of the first check valve and the flow restrictor being communicably coupled to the first inlet and the first outlet and being arranged in parallel between the first inlet and the first outlet. The second check valve having a second inlet and a second outlet, the second inlet being communicably coupled to the first outlet, the second check valve further having a ball seating surface having an aperture there through, a ball, and a resilient member biasing the ball towards the ball seating surface to seal the aperture, the aperture being communicably coupled to the second inlet and the second outlet.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 12, 2019
    Inventors: Michael J. BURGHDOFF, Mark A. ULRICH, Erich C. VAUGHAN