Patents by Inventor David Scheffert

David Scheffert 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).

  • Adjustable cage assembly for flow control devices
    Patent number: 11629788
    Abstract: An adjustable cage assembly for a flow control device can include a first cage body and a second cage body. The first cage body can be rotationally fixed relative to the second cage body at a plurality of alignments to provide a flow opening of variable size for adjustable control of fluid flow areas through the adjustable cage assembly.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: April 18, 2023
    Assignee: Emerson Process Management Regulator Technologies, Inc.
    Inventors: Justin Masias, David Scheffert
  • Adjustable Cage Assembly for Flow Control Devices
    Publication number: 20230065973
    Abstract: An adjustable cage assembly for a flow control device can include a first cage body and a second cage body. The first cage body can be rotationally fixed relative to the second cage body at a plurality of alignments to provide a flow opening of variable size for adjustable control of fluid flow areas through the adjustable cage assembly.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 2, 2023
    Inventors: Justin Masias, David Scheffert
  • Anti-cavitation element for use with valves
    Patent number: 10724643
    Abstract: A control valve includes a valve body, a valve seat, and a valve closure member displaceable a closed position and an open position. An anti-cavitation element is provided and includes a plurality of hollow tubes including a first tube, a second tube and a third tube. Each tube includes a flow axis from an open first end to an open second end, and an inner surface defining a flow area and having a cross-sectional shape normal to the flow axis. A second end of the tubes is between the valve closure member and first ends of the tubes along their respective flow axes when the valve closure member is closed. The first tube, the second tube, and the third tube are integrally formed as a single, unitary structure.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: July 28, 2020
    Assignee: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Charles R. Kuhlman, Andrew M. Prusha, Billy R. Flowers, David Scheffert
  • Anti-Cavitation Element for Use with Valves
    Publication number: 20180106383
    Abstract: A control valve includes a valve body, a valve seat, and a valve closure member displaceable a closed position and an open position. An anti-cavitation element is provided and includes a plurality of hollow tubes including a first tube, a second tube and a third tube. Each tube includes a flow axis from an open first end to an open second end, and an inner surface defining a flow area and having a cross-sectional shape normal to the flow axis. A second end of the tubes is between the valve closure member and first ends of the tubes along their respective flow axes when the valve closure member is closed. The first tube, the second tube, and the third tube are integrally formed as a single, unitary structure.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Charles R. Kuhlman, Andrew M. Prusha, Billy R. Flowers, David Scheffert