Patents by Inventor Arthur L. Shreve, III

Arthur L. Shreve, III 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: 5086875
    Abstract: A folding scaffold for supporting workers and material including a folding frame and a plurality of supporting planks. The frame includes two ladder frames with rungs, which ladder frames are connected by the support frames which hold the ladder frames a spaced distance apart when the scaffold is fully extended. The support frames are of different size and they are hingedly connected to fit in the same plane when the scaffold is in the folded position. The larger support frame protrudes a spaced distance from the smaller support frame when in the same plane to form a handle for easy transport of the scaffold when folded. When fully extended the end of the larger support frame is equi-distant from the ladder frames. The supporting planks extend between the ladder frame and are notched to receive the rungs of the ladder frame to hold the ladder frames in a parallel relation. A removable snap-on spring clip retains the ladder frames in the folded position for transport or storage.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: February 11, 1992
    Inventor: Arthur L. Shreve, III
  • Patent number: 5010979
    Abstract: An improved ladder stabilizing device for supporting a ladder a spaced distance away from a substantially vertical surface is disclosed. The device of the present invention includes a U-shaped support bar which forms two parallel legs, the ends of which rest against the substantially vertical surface. The support bar is attached to a leveling device consisting essentially of a U-shaped channel. The ends of the leveling device rest against the side rails of the ladder and the support bar engages the U-shaped channel. The leveling device and the support bar are simultaneously attached to the side rails of the ladder. The stabilizing device is easily removable and holds the ladder a distance from the substantially vertical surface to provide a safe angle of support.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: April 30, 1991
    Inventor: Arthur L. Shreve, III