Patents by Inventor Allan H. G. Brown

Allan H. G. Brown 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).

  • Expansion shell
    Patent number: 4605350
    Abstract: A shell for use in expansion assembly which comprises a member of generally tubular shape, the member having a first end which is inclined to its longitudinal axis and being formed with at least a first line of weakness in its wall which extends in the axial direction of the member.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: August 12, 1986
    Inventors: Izak Chater, Allan H. G. Brown
  • Elongated prop for supporting a load
    Patent number: 4534531
    Abstract: A prop made from an elongate timber element. The cross-sectional area of the element is reduced in at least one region e.g. by tapering the element, forming circumferential grooves in it, or boring holes axially or transversely into or through the element. The region of reduced cross-section is reinforced by means of bands or a sleeve which extends circumferentially around at least part of the region. The reduced cross-sectional area promotes deformation of the prop and the reinforcement controls the rate of deformation.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: August 13, 1985
    Inventor: Allan H. G. Brown