Patents by Inventor Rodney Seymour Leaper

Rodney Seymour Leaper 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).

  • Method of manufacturing composite materials
    Patent number: 3970136
    Abstract: A process for forming a composite material comprising a metal matrix incorporating fibrous reinforcement having a pre-determined pattern of fibre orientation which includes the steps of providing in a mould substantially parallel fibre arrays in which each array consists of a sheet of substantially coplanar fibres, providing a reservoir of molten matrix metal between at least some of the fibre arrays and applying pressure to the mould contents sufficient to force molten metal to surround substantially all the fibres.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: July 20, 1976
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: John Corjeag Cannell, Rodney Seymour Leaper, Noel James Parratt