Patents by Inventor Sudar Chellappa

Sudar Chellappa 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).

  • Adaptor flange for rotary control device
    Patent number: 9038729
    Abstract: An adapter assembly having a sealing element, a drive bushing, and an adapter flange disposed between the sealing element and the drive bushing. Also, a method of assembling a rotational control device that includes coupling mechanically an adapter flange to a sealing element, coupling mechanically the adapter flange to a drive bushing, and installing the adapter flange, sealing element, and drive bushing in the rotational control device.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 26, 2015
    Assignee: Smith International, Inc.
    Inventors: Trung Leduc, Sudar Chellappa
  • ADAPTOR FLANGE FOR ROTARY CONTROL DEVICE
    Publication number: 20120073113
    Abstract: An adapter assembly having a sealing element, a drive bushing, and an adapter flange disposed between the sealing element and the drive bushing. Also, a method of assembling a rotational control device that includes coupling mechanically an adapter flange to a sealing element, coupling mechanically the adapter flange to a drive bushing, and installing the adapter flange, sealing element, and drive bushing in the rotational control device.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Trung Leduc, Sudar Chellappa