Patents by Inventor Bani Ranjan Banerjee

Bani Ranjan Banerjee 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).

  • Roller shell hard coating
    Patent number: 4097711
    Abstract: Invention covers a method of hard surfacing machine parts, specifically the invention discloses a method of impregnating the surface of cylindrical pellet mill roller shells with tungsten carbide particles applied with a tungsten inert gas welding process. In the method of this invention, the surface layer of the roller shell is first carbon enriched by surface gas carburizing prior to welding. The resulting surface exhibits good distribution of tungsten carbide particles and resistance to surface cracking.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: June 27, 1978
    Assignee: Ingersoll-Rand Company
    Inventor: Bani Ranjan Banerjee