Patents by Inventor Virgil E. Pound

Virgil E. Pound 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).

  • Hydraulic cab tilting system having full locking with controlled free-fall
    Patent number: 4410056
    Abstract: An hydraulic tilt system and method for its use with a cab pivotally mounted on a motor vehicle frame. An hydraulic piston-cylinder assembly pivotally connects between the cab and the frame. A remote control station has an hydraulic pump, a reservoir, and a control for operating the pump to tilt the cab. Hydraulic lines connect the control station with the piston-cylinder assembly. Check valves in the hydraulic lines stop the tilting motion of the cab in case of loss of hydraulic pressure. A controlled return free-fall valve is also disposed in the hydraulic lines to selectively restrict the flow of hydraulic fluid.
    Type: Grant
    Filed: May 27, 1981
    Date of Patent: October 18, 1983
    Assignee: PACCAR Inc.
    Inventors: Virgil E. Pound, James R. Jensen, Albert C. Zwicky
  • Integral truck cab roof, fairing and sun visor unit
    Patent number: D311506
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: October 23, 1990
    Assignee: PACCAR Inc.
    Inventors: Huston Marlowe, Virgil E. Pound, Michikazu Tao
  • Exterior shell of a truck cab body
    Patent number: D311712
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: October 30, 1990
    Assignee: Paccar Inc.
    Inventors: Huston Marlowe, Virgil E. Pound, John Foot, Jeff Paul, Bob Ray, Michikazu Tao
  • Knob for a personal security device
    Patent number: D435425
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: December 26, 2000
    Assignee: Gateway Marketing Corporation
    Inventors: Ronald A. Roesler, Peter H. Jederman, Virgil E. Pound