Patents by Inventor Albert Ferrari

Albert Ferrari 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).

  • Methods and devices for cutting, eroding, welding and depositing metallic and non-metallic materials by means of an electric arc
    Patent number: 4194106
    Abstract: The trajectory and speed of a turning electric arc in a device for cutting, eroding, welding or depositing material are controlled by varying the voltage and frequency of a polyphase current supplied to pole pieces disposed about the arc. The arc may be formed into a practically continuous bell-shaped or cylindrical sheet, thereby increasing the arc power.
    Type: Grant
    Filed: June 6, 1978
    Date of Patent: March 18, 1980
    Assignee: Secheron Soudure S.A.
    Inventors: Albi Rudaz, Albert Ferrari