Patents by Inventor Pashupati Nath

Pashupati Nath 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).

  • Niobium addition in Cr-Mo-¼V steel castings for steam turbine casing applications
    Patent number: 7981360
    Abstract: A chromium-molybdenum-vanadium (Cr—Mo—V) cast steel including 0.04 to 0.08% by weight of niobium is disclosed. The cast steel may include 0.08 to 0.12% by weight carbon. The cast steel may also have a sulphur content of 0.015% by weight or less, and a phosphorus content of 0.02% by weight or less. The silicon content may be 0.30 to 0.60% by weight, the manganese content may be 0.50 to 0.80% by weight, the chromium content may be 1.20 to 1.50% by weight, the molybdenum content may be 0.90 to 1.10% by weight, and the vanadium content may be 0.20 to 0.30% by weight.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: July 19, 2011
    Assignee: Bharat Heavy Electricals Limited
    Inventors: Kulvir Singh, Jaipal Reddy Gurram, Sudhakar Reddy Katam, Pashupati Nath, Mallesh Pudtha, Vishnu Kumar Agrawal
  • Niobium Addition in Cr-Mo-1/4V Steel Castings for Steam Turbine Casing Applications
    Publication number: 20080138234
    Abstract: A chromium-molybdenum-vanadium (Cr—Mo—V) cast steel including 0.04 to 0.08% by weight of niobium is disclosed. The cast steel may include 0.08 to 0.12% by weight carbon. The cast steel may also have a sulphur content of 0.015% by weight or less, and a phosphorus content of 0.02% by weight or less. The silicon content may be 0.30 to 0.60% by weight, the manganese content may be 0.50 to 0.80% by weight, the chromium content may be 1.20 to 1.50% by weight, the molybdenum content may be 0.90 to 1.10% by weight, and the vanadium content may be 0.20 to 0.30% by weight.
    Type: Application
    Filed: March 20, 2006
    Publication date: June 12, 2008
    Applicant: BHARAT HEAVY ELECTRICALS LIMITED
    Inventors: Kulvir Singh, Jaipal Reddy Gurram, Sudhakar Reddy Katam, Pashupati Nath, Mallesh Pudtha, Vishnu Kumar Agrawal