Patents by Inventor Jean-Claude M. M. Rossollin

Jean-Claude M. M. Rossollin 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 for folding sheet-shaped plastic material and folded sheet-shaped plastic material obtained by carrying out this method
    Patent number: 4183891
    Abstract: Method for forming a folded sheet of plastic with reinforcing ribs disposed transverse to the line of fold. The line of fold or weakening line is provided with a plurality of weakening grooves separated by unweakened material of the sheet. When the sheet is folded, unweakened material is drawn out to form reinforcing ribs transverse to the weakening line and in the dihedral angle of the fold. The length of the unweakened material between the grooves is dimensionally variable to provide an adjustable resistance to folding.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: January 15, 1980
    Assignee: United Patents Trust Reg.-U.P.T.
    Inventor: Jean-Claude M. M. Rossollin