Patents by Inventor DeWayne Stanfill

DeWayne Stanfill 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).

  • OVERFILL PREVENTION VALVE
    Publication number: 20250354623
    Abstract: An overfill prevention valve for use with a tank includes a valve element disposed in a fluid fill path and a float assembly including an actuator and a repositionable float. The float is selectively fixed relative to and moveable relative to the actuator to adjust a target fill level. The float is buoyantly supported by the fluid such that the float and the actuator are shiftable in correspondence with an actual fill level. The actuator is coupled with the valve element such that the valve element shifts to a closed position when the actual fill level nears a target fill level. The float includes discrete buoyant components that are shiftable away from each other and from the actuator to facilitate shifting of the float relative to the actuator and that are securable relative to each other and relative to the actuator to facilitate operation of the float assembly.
    Type: Application
    Filed: July 29, 2025
    Publication date: November 20, 2025
    Applicant: Clay and Bailey Manufacturing Company
    Inventors: DeWayne Stanfill, George Andrew Borst, Boris Bajic, Amanuel T. Berhe, Kong M. Her, Christopher P. Borst, Phillip H. Borst
  • Overfill prevention valve
    Patent number: 12392421
    Abstract: An overfill prevention valve for use with a tank includes a valve element disposed in a fluid fill path and a float assembly including an actuator and a repositionable float. The float is selectively fixed relative to and moveable relative to the actuator to adjust a target fill level. The float is buoyantly supported by the fluid such that the float and the actuator are shiftable in correspondence with an actual fill level. The actuator is coupled with the valve element such that the valve element shifts to a closed position when the actual fill level nears a target fill level. The float includes discrete buoyant components that are shiftable away from each other and from the actuator to facilitate shifting of the float relative to the actuator and that are securable relative to each other and relative to the actuator to facilitate operation of the float assembly.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: August 19, 2025
    Assignee: Clay and Bailey Manufacturing Company
    Inventors: DeWayne Stanfill, George Andrew Borst, Boris Bajic, Amanuel T. Berhe, Kong M. Her, Christopher P. Borst, Phillip H. Borst
  • OVERFILL PREVENTION VALVE
    Publication number: 20230025926
    Abstract: An overfill prevention valve for use with a tank includes a valve element disposed in a fluid fill path and a float assembly including an actuator and a repositionable float. The float is selectively fixed relative to and moveable relative to the actuator to adjust a target fill level. The float is buoyantly supported by the fluid such that the float and the actuator are shiftable in correspondence with an actual fill level. The actuator is coupled with the valve element such that the valve element shifts to a closed position when the actual fill level nears a target fill level. The float includes discrete buoyant components that are shiftable away from each other and from the actuator to facilitate shifting of the float relative to the actuator and that are securable relative to each other and relative to the actuator to facilitate operation of the float assembly.
    Type: Application
    Filed: July 21, 2022
    Publication date: January 26, 2023
    Applicant: Clay and Bailey Manufacturing Company
    Inventors: DeWayne Stanfill, George Andrew Borst, Boris Bajic, Amanuel T. Berhe, Kong M. Her, Christopher P. Borst, Phillip H. Borst