Patents by Inventor Jean P. Lacotte

Jean P. Lacotte 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).

  • Patent number: 4313718
    Abstract: Method for the manufacture of flexible disks from engraved moulds by means of a compression press comprising starting with a roll of plastic material and bringing a strip of material between the open plates of a compression press without making a preliminary hole in said strip. A preliminary hole is made during the closing of the plates by means of a first punch matched to a complementary punch, said punches serving as centering means for the two moulds, then by the guidance of the first punch in the complimentary punch for the centering of the moulds with respect to one another. The central hole is cut when the plates are closed by means of the complementary punch which is maintained in the raised position throughout the end of the pressing cycle.
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: February 2, 1982
    Assignee: Thomson-CSF
    Inventors: Raymond Llabres, Robert Antoine, Jean P. Lacotte, Charles Marchi