Patents by Inventor David Clugg

David Clugg 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).

  • Handle for valve assembly
    Patent number: 11248720
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: February 15, 2022
    Assignee: Salco Products, Inc.
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin
  • HANDLE FOR VALVE ASSEMBLY
    Publication number: 20200278048
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin
  • Handle for valve assembly
    Patent number: 10760709
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 1, 2020
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin
  • HANDLE FOR VALVE ASSEMBLY
    Publication number: 20190178414
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin
  • Handle for valve assembly
    Patent number: 10274101
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: April 30, 2019
    Assignee: SALCO PRODUCTS INC.
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin
  • Handle for Valve Assembly
    Publication number: 20150369390
    Abstract: A handle assembly is provided for an outlet valve of a tank car wherein the outlet valve has a valve stem rotatable about an axis and is operative to open and close the outlet valve. The handle assembly includes a valve handle for manually opening the outlet valve, a rotatable shaft coupled to the handle, and a coupling coupled to the outlet valve and selectively coupleable to the shaft. A valve rotation control structure includes a first movement control component on one of the coupling and the shaft. The valve rotation control structure is configured to permit the coupling or shaft to move parallel to the axis of the valve stem between a first locked position and a second rotatable position and to rotate about the axis of the valve stem between a first valve closed position and a second valve open position at the second rotatable position.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 24, 2015
    Inventors: Vedran Dzolovic, David Clugg, Lawrence McMullin, James McLaughlin