Patents by Inventor Franco Volpi

Franco Volpi 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: 10974332
    Abstract: The present invention is directed to a current feeding device for the supply of electrical current to a wire electrode traveling in an electro-erosion machine during the machining operation. The current feeding device comprising: a rotary electrically conductive body which is in contact with the wire electrode; at least one bearing for supporting the rotary electrically conductive body at one side; and a brush for electrically contacting the rotary electrically conductive body and for supporting the rotary electrically conductive body at the other side of the body and opposite side to the bearing. The brush is at the rotary axis of the rotary electrically conductive body.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: April 13, 2021
    Inventor: Franco Volpi
  • Publication number: 20190366457
    Abstract: The present invention is directed to a current feeding device for the supply of electrical current to a wire electrode traveling in an electro-erosion machine during the machining operation. The current feeding device comprising: a rotary electrically conductive body which is in contact with the wire electrode; at least one bearing for supporting the rotary electrically conductive body at one side; and a brush for electrically contacting the rotary electrically conductive body and for supporting the rotary electrically conductive body at the other side of the body and opposite side to the bearing. The brush is at the rotary axis of the rotary electrically conductive body.
    Type: Application
    Filed: April 16, 2019
    Publication date: December 5, 2019
    Inventor: Franco VOLPI
  • Patent number: 10421140
    Abstract: A threading nozzle for threading a wire electrode for a threading device in a wire electrical discharge erosion machine includes a threading-nozzle body having a guide bore configured to guide the wire electrode along a longitudinal axis of the former and a gap that splits the threading-nozzle body in two parts which are connected at a flexural hinge configured in the threading-nozzle body. The gap splits the guide bore in two parts.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: September 24, 2019
    Assignee: AGIE CHARMILLES SA
    Inventors: Franco Volpi, Karl Tobler, Renato Rota
  • Publication number: 20170216946
    Abstract: A threading nozzle for threading a wire electrode for a threading device in a wire electrical discharge erosion machine includes a threading-nozzle body having a guide bore configured to guide the wire electrode along a longitudinal axis of the former and a gap that splits the threading-nozzle body in two parts which are connected at a flexural hinge configured in the threading-nozzle body. The gap splits the guide bore in two parts.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 3, 2017
    Inventors: Franco Volpi, Karl Tobler, Renato Rota