Patents by Inventor Diljit S. Ahluwalia

Diljit S. Ahluwalia 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).

  • Multi-stepped power drill bit having handle chuck adaptor
    Patent number: 5466100
    Abstract: A power drill bit having a stepped construction, referred to as a cone drill, and a quick change capability provided by a shank having a non-circular cross-section and a circumferential groove for quick connect-disconnect in a power tool or drill. The preferred embodiment includes a hexagonal shank which is at least one-half of the axial length of the drill bit in order to provide a better engagement to the power chuck.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: November 14, 1995
    Assignee: Alfa Manufacturing Industries, Inc.
    Inventor: Diljit S. Ahluwalia