Patents by Inventor PATRICK WILLIAM McMAHON

PATRICK WILLIAM McMAHON 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).

  • Guide wheel overload indicators
    Patent number: 11577567
    Abstract: A novel system for providing for safe operation of railgear, that is, a set of guide wheels that allow road vehicles to travel on railroad tracks, based on the use of overload indicators installed on the suspension arm of each guide wheel to give operators a quick, visual representation of whether or not a guide wheel is overloaded.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 14, 2023
    Assignee: AUTO TRUCK GROUP, LLC
    Inventors: Patrick William McMahon, Theodore Joseph Rizo
  • Control system for signals at railroad grade crossings
    Patent number: 11203367
    Abstract: An improved safety system used to determine the present position of a car riding on railroad tracks that provides data to control signals, such as flashing lights, and crossing gates at railroad grade crossings in order to prevent accidents with vehicles or persons.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: December 21, 2021
    Assignee: Auto Truck Group, LLC
    Inventor: Patrick William McMahon
  • CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSING
    Publication number: 20200339168
    Abstract: An improved safety system used to determine the present position of road vehicles with rubber tires that are outfitted with railgear to be able to ride on railroad tracks that provides data to control signals, such as flashing lights, and crossing gates at railroad grade crossings in order to prevent accidents with vehicles or persons.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Applicant: AUTO TRUCK GROUP, LLC
    Inventor: Patrick William McMahon
  • CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSINGS
    Publication number: 20190337542
    Abstract: An improved safety system used to determine the present position of a car riding on railroad tracks that provides data to control signals, such as flashing lights, and crossing gates at railroad grade crossings in order to prevent accidents with vehicles or persons.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 7, 2019
    Applicant: AUTO TRUCK GROUP, LLC
    Inventor: Patrick William McMahon
  • GUIDE WHEEL OVERLOAD INDICATORS
    Publication number: 20190329615
    Abstract: A novel system for providing for safe operation of railgear, that is, a set of guide wheels that allow road vehicles to travel on railroad tracks, based on the use of overload indicators installed on the suspension arm of each guide wheel to give operators a quick, visual representation of whether or not a guide wheel is overloaded.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 31, 2019
    Applicant: AUTO TRUCK GROUP, LLC
    Inventors: PATRICK WILLIAM McMAHON, THEODORE JOSEPH RIZO