Patents by Inventor David J. Seiler

David J. Seiler 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).

  • Flow control system and control valve having closure assistance
    Patent number: 10697558
    Abstract: A control valve includes a piston-housing having a hollow portion. The hollow portion has a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber. The first chamber is nearer the first end, and the second chamber is nearer the open end. A piston is located within the housing and is adapted for reciprocal motion. The piston includes a first and second seal-engaging portions. The first seal-engaging portion has a diameter that is less than the diameter of the second seal-engaging portion.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 30, 2020
    Assignee: Daniel Measurement and Control, Inc.
    Inventors: Thomas Henry Loga, David J. Seiler, Justin Blake Crouch, Michael Richard Adib Zahr, Raul H. Almazan
  • Relief valve with position indication
    Patent number: 9851018
    Abstract: A surge relief valve includes a piston housing and a piston located within the housing for reciprocal motion. The surge relief valve also includes a position sensor to resolve the axial position of the piston relative to the piston housing. The position sensor includes a sensor body coupled to the piston housing and a movable element configured to move linearly relative to the sensor body and configured to move axially with the piston. At a least portion of the sensor body is located within the piston housing.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: December 26, 2017
    Assignee: Daniel Measurement and Control, Inc.
    Inventors: Raul H. Almazan, Michael Richard Adib Zahr, Jack Caruthers, Thomas Henry Loga, David J. Seiler, Justin Blake Crouch
  • Relief Valve with Position Indication
    Publication number: 20150219242
    Abstract: A surge relief valve includes a piston housing and a piston located within the housing for reciprocal motion. The surge relief valve also includes a position sensor to resolve the axial position of the piston relative to the piston housing. The position sensor includes a sensor body coupled to the piston housing and a movable element configured to move linearly relative to the sensor body and configured to move axially with the piston. At a least portion of the sensor body is located within the piston housing.
    Type: Application
    Filed: January 28, 2015
    Publication date: August 6, 2015
    Applicant: DANIEL MEASUREMENT AND CONTROL, INC.
    Inventors: Raul H. Almazan, Michael Richard Adib Zahr, Jack Caruthers, Thomas Henry Loga, David J. Seiler, Justin Blake Crouch
  • Flow Control System and Control Valve Having Closure Assistance
    Publication number: 20150034179
    Abstract: A control valve includes a piston-housing having a hollow portion. The hollow portion has a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber. The first chamber is nearer the first end, and the second chamber is nearer the open end. A piston is located within the housing and is adapted for reciprocal motion. The piston includes a first and second seal-engaging portions. The first seal-engaging portion has a diameter that is less than the diameter of the second seal-engaging portion.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 5, 2015
    Applicant: Daniel Measurement and Control, Inc.
    Inventors: Thomas Henry Loga, David J. Seiler, Justin Blake Crouch, Michael Richard Adib Zahr, Raul H. Almazan