Patents by Inventor Abhijeet P. Joshi

Abhijeet P. Joshi 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).

  • Metal cutting drill bit
    Patent number: 8740515
    Abstract: A combination drill bit for use in both hand held drills and stationary drill presses has a shanking end, a working end and a helical flute portion between the shanking and working ends. The helical portion has a helix length (L) of L = ( D × ? tan ? ? ? ) . The drill bit has a core that is tapered from the working end to the shanking end. A web thickness length at the working end is 10% to 35% of the diameter and the thickness length at the junction of the shanking end is 70% to 90% of the diameter. The drill bit is manufactured from a high speed steel including at least 5% by weight of cobalt.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: June 3, 2014
    Assignee: Black & Decker Inc.
    Inventors: Rickey J. Thomas, Florian Probst, Thomas J. Quinn, Abhijeet P. Joshi, Alfons K. Wetzl, Albert Leidl, David N. Johnson
  • Metal Cutting Drill Bit
    Publication number: 20100054881
    Abstract: A combination drill bit for use in both hand held drills and stationary drill presses has a shanking end, a working end and a helical flute portion between the shanking and working ends. The helical portion has a helix length (L) of L = ( D × ? tan ? ? ? ) . The drill bit has a core that is tapered from the working end to the shanking end. A web thickness length at the working end is 10% to 35% of the diameter and the thickness length at the junction of the shanking end is 70% to 90% of the diameter. The drill bit is manufactured from a high speed steel including at least 5% by weight of cobalt.
    Type: Application
    Filed: August 12, 2009
    Publication date: March 4, 2010
    Applicant: Black & Decker Inc.
    Inventors: Rickey J. Thomas, Florian Probst, Thomas J. Quinn, Abhijeet P. Joshi, Alfons K. Wetzl, Albert Leidl, David N. Johnson