Patents by Inventor Gianpietro Trentini

Gianpietro Trentini 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).

  • Stretching device for filaments or strands
    Patent number: 3969800
    Abstract: A mechanism for producing plastic filaments including a means such as an extruder for supplying continuous plastic filaments, drawing the filaments over an arcuate nonfriction surface of a heated heat transfer plate in heat transfer engagement therewith while subjecting the filament to radiant heat opposite the plate, and applying an axial stretching tension to the filament.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: July 20, 1976
    Assignee: Beloit Corporation
    Inventors: Giorgio Baldini, Gianpietro Trentini