Patents by Inventor Christopher D. McCormick

Christopher D. McCormick 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).

  • Silt fence installation apparatus
    Patent number: 7144202
    Abstract: A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported by the tractor. Silt fence fabric from a roll carried on a rod on the machine is fed into a chute formed by two parallel plates of the plow member. The fabric is drawn out the front of the plow member and drawn along the side of the plow member by friction with the soil through which the plow member is drawn.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 5, 2006
    Inventor: Christopher D. McCormick
  • Silt fence installation apparatus
    Patent number: 7044689
    Abstract: A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported by the tractor. Silt fence fabric from a roll carried on a rod on the machine is fed into a chute formed by two parallel plates of the plow member. The fabric is drawn out the front of the plow member and drawn along the side of the plow member by friction with the soil through which the plow member is drawn.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: May 16, 2006
    Inventor: Christopher D. McCormick
  • Silt fence installing machine
    Patent number: D502470
    Type: Grant
    Filed: January 17, 2004
    Date of Patent: March 1, 2005
    Inventor: Christopher D. McCormick
  • Silt fence installing machine
    Patent number: D504134
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: April 19, 2005
    Inventor: Christopher D. McCormick