Patents by Inventor Jimmy Biggerstaff

Jimmy Biggerstaff 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).

  • Publication number: 20060245881
    Abstract: A priority hydraulic flow diverter control assembly for a refuse collection vehicle hydraulic system provides proper and efficient flow in an auxiliary hydraulic circuit regardless of the primary flow so that refuse cart lifters and the refuse cart operate safely and efficiently. A pressure sequence valve enables the system to operate in the most efficient manner with respect to pressure drop and flow loss. The pressure sequence valve diverts hydraulic fluid flow from the refuse cart lifter circuit into the downstream main hydraulic system when downstream back pressure is low. When back pressure is high, the pressure sequence valve diverts hydraulic fluid flow from the refuse cart lifter circuit into the system tank. This allows all hydraulic operated equipment to operate that their intended speed at high and low system back pressures. A differential pressure sensing valve and flow regulating valves provide a precision flow.
    Type: Application
    Filed: February 3, 2006
    Publication date: November 2, 2006
    Inventors: Jimmy Biggerstaff, James Garrett
  • Publication number: 20060045681
    Abstract: A lifter is disclosed which allows for an improved operating envelope of the faceplate. The lifter utilizes a motor having 210 degrees of rotation and lifting arms of a unique geometry to rotate a faceplate from a retracted position below and substantially behind the lifter baseplate to a dumping position above and substantially behind a lower hopper edge for the purpose of dumping refuse carts into a refuse collection vehicle. This dumps refuse further into the vehicle hopper, which minimizes the number of packing cycles required on a collection route. A faceplate is attached to the motor using two lifting arms. The faceplate has a fixed upper hook and may be configured with a sliding, retractable lower hooking mechanism or a spring loaded, cam actuated rotating hook mechanism.
    Type: Application
    Filed: April 28, 2005
    Publication date: March 2, 2006
    Inventors: Billy Bayne, Jimmy Biggerstaff