Patents by Inventor Khristopher R. Wall

Khristopher R. Wall 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).

  • System and method for operating a ballast car hopper door
    Patent number: 10787109
    Abstract: A system and method for operating a ballast car hopper door includes logic and control circuitry, a hydraulic actuator, a door position sensor, and one or more sensors operable to measure system operational parameters. During normal operation of the hopper door the logic and control circuitry records the system operational parameters. In the event of failure, or absence, of the door position sensor the control circuitry compares real-time data to recorded data to maintain operation and correct positioning of the hopper door.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: September 29, 2020
    Assignee: Herzog Railroad Services, Inc.
    Inventors: Nathan A. Landes, Khristopher R. Wall, Stephen Bedingfield, Douglas P. Thornton, Patrick R. Harris
  • SYSTEM AND METHOD FOR OPERATING A BALLAST CAR HOPPER DOOR
    Publication number: 20180134201
    Abstract: A system and method for operating a ballast car hopper door includes logic and control circuitry, a hydraulic actuator, a door position sensor, and one or more sensors operable to measure system operational parameters. During normal operation of the hopper door the logic and control circuitry records the system operational parameters. In the event of failure, or absence, of the door position sensor the control circuitry compares real-time data to recorded data to maintain operation and correct positioning of the hopper door.
    Type: Application
    Filed: October 23, 2017
    Publication date: May 17, 2018
    Applicant: Herzog Railroad Services, Inc.
    Inventors: Nathan A. Landes, Khristopher R. Wall, Stephen Bedingfield, Douglas P. Thornton, Patrick R. Harris