Patents by Inventor Kumun R. Vakil

Kumun R. Vakil 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).

  • Method and apparatus for drilling countersunk holes
    Patent number: 6964546
    Abstract: A drilling apparatus includes a drill, a surge control device and a countersink limiter coupled to the drill, and a rotatable cutting tool coupled to the countersink limiter. The cutting tool includes a drilling portion operable to form a hole, a countersink portion operable to form a countersink, and a fillet portion operable to form a longitudinally-curved transition between the hole and the countersink. The depth of the countersink is controlled by the countersink limiter. The surge control device is operable to control the axial speed of the cutting tool.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: November 15, 2005
    Assignee: Northrop Grumman Corporation
    Inventor: Kumun R. Vakil