Patents by Inventor John D. Wamsher

John D. Wamsher 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).

  • Patent number: 5833400
    Abstract: An earth anchor is made from a length of tubing that has angle-cut ends and a pulling attachment pivotally attached to an axle attached across the tubing at right angles to the length of the tubing. The anchor is lowered into an earth bore in a relatively vertical position to be rotated axially via a pull-tension applied to link attached to the pulling attachment. Upward motion causes the anchor to rotate about the axle, burrowing into the surrounding earth until the anchor is lodged in a horizontal position in the earth bore. The link extends to above ground and has a suitable fixture for securing to an object to be anchored. A double-cone effect produced by the compacting action of the angled cut-outs and the continued upward pull via the pull rod, compacts the earth above the anchor in continually expanding cones, and fills the inside of the main body of the anchor with compacted ground.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: November 10, 1998
    Inventor: John D. Wamsher