Patents by Inventor Robert A. Twining

Robert A. Twining 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: 4263717
    Abstract: A locating tool for facilitating the installation of relatively stiff floor covering material such as congoleum, linoleum, vinyl and similar sheet material comprising, a flat tool having opposed ends with edges for locating inside and outside corners and pipes or circular objects and opposed side edges for locating straight wall surfaces, locating tabs extending upwardly from the tool adjacent each side and end of sufficient length to produce an indentation in a piece of floor covering material pressed thereon, but not of sufficient length to completely penetrate the floor covering material, the locating tabs being inserted in such indentations when the floor covering material is rolled back and the tool laid on the bottom side of the floor covering material so that the end or side edges of the tool can be traced to provide an exact duplicate of the corner or wall being located, or one end of the tool can be utilized to provide an indication of the diameter of pipes or circular objects being located.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: April 28, 1981
    Inventor: Robert A. Twining