Patents by Inventor Luigi Frigo

Luigi Frigo 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).

  • Machine for making and positioning bags made of hot-melt plastic material
    Patent number: 5375390
    Abstract: A machine for making and positioning plastic bags, constituted by a frame which includes: a feeder (3) for a band of plastic (B); a device (6) for creating a bellows-like fold in the band; a device (10) for cutting and fusing the band; a conveyor belt (18); a filling unit for filling the bags with a product; a nozzle for inflating the bags to insert the products; a device (25) for securing the bags so as to arrange them at the same angle as the product.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: December 27, 1994
    Assignees: Technopac, Inc., Luigi Frigo
    Inventors: Luigi Frigo, Ken Giesbrecht