Patents by Inventor Kristin R. Brandenberg

Kristin R. Brandenberg 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 of producing downhole drill bits with integral carbide studs
    Patent number: 7506705
    Abstract: A down hole rock drill bit and method of manufacture of the same comprising a cast metal drill bit body having a plurality of hardened carbide studs partially cast in the drill bit body. The drill bit is cast by means of a foam pattern replicating the drill bit, typically made from polystyrene within which a plurality of carbide studs are partially inserted into the grinding surface of the foam drill bit model. The model is then subsequently supported within a vessel of sand and molten metal is poured over the foam, vaporizing it and taking the exact form of the foam pattern and permanently retaining the carbide studs within the metal drill bit.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: March 24, 2009
    Assignee: Applied Process, Inc.
    Inventors: Kristin R Brandenberg, John R Keough, Kathy L Hayrynen, Gerald J Wurtsmith
  • Method of producing downhole drill bits with integral carbide studs
    Patent number: 6799648
    Abstract: A down hole rock drill bit and method of manufacture of the same comprising a cast metal drill bit body having a plurality of hardened carbide studs partially cast in the drill bit body. The drill bit is cast by means of a foam pattern replicating the drill bit, typically made from polystyrene within which a plurality of carbide studs are partially inserted into the grinding surface of the foam drill bit model. The model is then subsequently supported within a vessel of sand and molten metal is poured over the foam, vaporizing it and taking the exact form of the foam pattern and permanently retaining the carbide studs within the metal drill bit.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 5, 2004
    Assignee: Applied Process, Inc.
    Inventors: Kristin R. Brandenberg, John R. Keough, Kathy L. Hayrynen, Gerald J. Wurtsmith
  • Method of producing downhole drill bits with integral carbide studs
    Publication number: 20040040752
    Abstract: A down hole rock drill bit and method of manufacture of the same comprising a cast metal drill bit body having a plurality of hardened carbide studs partially cast in the drill bit body. The drill bit is cast by means of a foam pattern replicating the drill bit, typically made from polystyrene within which a plurality of carbide studs are partially inserted into the grinding surface of the foam drill bit model. The model is then subsequently supported within a vessel of sand and molten metal is poured over the foam, vaporizing it and taking the exact form of the foam pattern and permanently retaining the carbide studs within the metal drill bit.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Inventors: Kristin R. Brandenberg, John R. Keough, Kathy L. Hayrynen, Gerald J. Wurtsmith