Patents by Inventor Alfred J. Paoletti

Alfred J. Paoletti 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).

  • Gas shield for welding
    Patent number: 5081334
    Abstract: Disclosed is an improvement in a process of arc welding a work piece involving feeding a consumable electrode through a current-carrying sleeve to the arc to form a weld pool on the work piece. The improvement involves passing a stream of shielding gas inside the sleeve toward the weld pool.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: January 14, 1992
    Assignee: Hercules Incorporated
    Inventors: James E. Copher, Kenneth F. Krysiak, Alfred J. Paoletti
  • Methods of hard facing
    Patent number: 4192983
    Abstract: A method of forming a hard surfacing on a metal article is provided based upon forming a weld wire with a diffusion layer containing boron and depositing the wire on the surface to be hard surfaced by means of an electric arc to form a substantially uniform boron containing alloy weldment composition.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: March 11, 1980
    Assignee: Cabot Corporation
    Inventor: Alfred J. Paoletti