Patents by Inventor Bala Durairajan

Bala Durairajan 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).

  • Fixed-head bit with stabilizing features
    Publication number: 20060157279
    Abstract: A fixed-head drill bit includes a bit body having a plurality of cutting elements and at least one wear knuckle disposed on the bit body. Each cutting element includes a cutting surface defining a swept cutting profile when the bit is rotated about an axis. The at least one wear knuckle is positioned at least partially within and extending at least partially outside a selected one or more of the swept cutting profiles, allowing the fixed-head drill bit to wear into a more stable configuration.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 20, 2006
    Applicant: Smith International, Inc.
    Inventors: Peter Cariveau, Bala Durairajan, Sujian Huang