Patents by Inventor Jean-Michel Ruis

Jean-Michel Ruis 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: 5145632
    Abstract: A process for the manufacture of a polyethylene terephthalate (PET) container from a hollow amorphous PET preform which includes an open end and a closed end, the open end forming a neck section having dimensions already conformed to its final size and shape, the container being able to withstand relatively severe thermal conditions encountered when the container is filled with a hot liquid, without appreciable deformation, including the steps of: a) rapidly heating only the body of the PET preform, exclusive of the neck section, to a temperature at which subsequent longitudinal and transverse stretching cause no stresses in the PET; b) transferring the hot preform from step (a) to a mold whose walls are maintained at a temperature lower than the temperature of the hot preform body; c) longitudinally stretching the preform body while simultaneously transversely expanding it by blow-molding using a pressurized fluid so as to mold the preform body to the shape of the mold cavity; d) rapidly evacuating the press
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: September 8, 1992
    Assignee: Sidel
    Inventors: Gerard Denis, Jean-Michel Ruis, Paul La Barre