Patents by Inventor William M. Ritchie, IV

William M. Ritchie, IV 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).

  • Device for connecting concrete form panels assembled on stepped footing
    Patent number: 5620628
    Abstract: A device is provided for connecting structural panels used to make pouring forms for concrete. It includes a pair of connecting elements dimensioned to fit between adjacent structural panels and having adjustably positioned latches and latchbolts. The device enables one pair of panels to be moved out of horizontal alignment with the adjacent pair of panels to accommodate abrupt angular steps in a foundation and still employ the standard latching positions of each panel.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: April 15, 1997
    Inventor: William M. Ritchie, IV