Patents by Inventor D. Randolph Berry

D. Randolph Berry 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).

  • Extensible brattice and cantilevered roof mounted support system therefor
    Patent number: 4180352
    Abstract: An extensible brattice and cantilevered support system therefor comprises a brattice panel having first and second top sleeves and a weighted bottom sleeve suspended from selected roof bolts by a support system comprising a support to which the brattice panel is mounted and which defines a track, and mounting apparatus for each roof bolt comprising a coupler connected to the panel support in sliding engagement with the support track, an elongate member connected to the coupler, an upstanding, roof abutting leg member connected to the elongate member at a location longitudinally spaced from the coupler, and a member connecting the elongate member in depending relation to the associated roof bolt at a position on the elongate member intermediate the coupler and leg member.
    Type: Grant
    Filed: November 7, 1978
    Date of Patent: December 25, 1979
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Edward F. Divers, D. Randolph Berry, David A. Monaghan