Patents by Inventor Brian P. Lewis

Brian P. Lewis 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).

  • Yieldable load support
    Patent number: 5318387
    Abstract: The yieldable load support comprises a compressible support member in the form of an elongate timber pole. The load support or pole is asymmetrically modified at or near one end thereof in a manner to positively induce sideways brushing of the pole at the modified end, in a preferential direction transverse to the length of the pole, when the support member is placed under longitudinal compressive load of sufficient magnitude.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: June 7, 1994
    Assignee: H L & H Timber Products (Proprietary) Limited
    Inventors: Frans R. P. Pienaar, Graham H. Clarke, Brian P. Lewis, Mark Howell, Richard G. King, Peter J. Cook
  • Prop preloading apparatus
    Patent number: 5149228
    Abstract: The prop preloading apparatus comprises a frame and means for supporting the frame on an end of an elongate prop in a manner permitting at least limited swivelling movement of the frame relative to the prop about at least one axis transverse to the axis of the prop. The apparatus also includes a flexible preload bag which is inflatable with a settable substance and which is dimensioned to be supported by the frame.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: September 22, 1992
    Assignee: HL&H Timber Products (Proprietary) Limited
    Inventors: Frans R. P. Pienaar, Brian P. Lewis, Graham Clark