Patents by Inventor Gerard Tost

Gerard Tost 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).

  • Process for obtaining parts made of copper of very fine texture from a billet made by continuous casting
    Patent number: 5039355
    Abstract: The process according to the invention makes it possible to form parts from copper of high purity and fine structure.Beginning with a billet (1) made by continuous casting, it includes the following main phases:a kneading of the billet (1, 4) comprising upsetting and drawing cycles;cutting of the billet into blanks (8) each intended to form one finished part;an operation of die forging (9, 12) at ambient temperature; anda recrystallization heat treatment to obtain a grain size of the copper of less than 40 micrometers.The invention is applicable to the production of internal liners for shaped charges.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: August 13, 1991
    Inventors: Marie T. Daumas, Jean Collard, Gerard Tost