Patents by Inventor Michael John Sandstrom

Michael John Sandstrom 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).

  • Superabrasive compact with selected interface and rotary drill bit including same
    Patent number: 7757790
    Abstract: A superabrasive compact including a superabrasive layer bonded to a substrate along a selected interface is disclosed. In one embodiment, an interface may comprise a depression and a dividing wall, wherein the dividing wall forms at least one closed plane figure. In another embodiment, an interface may comprise a depression, a dividing wall forming at least one closed plane figure, and at least one raised feature positioned within the depression. In a further embodiment, an interface may comprise a depression formed into the substrate, the depression surrounded by a closed peripheral wall exhibiting a thickness of about 0.080 inches or less. A rotary drill bit including at least one cutting element is also disclosed.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: July 20, 2010
    Assignee: US Synthetic Corporation
    Inventors: Scott M. Schmidt, Michael John Sandstrom
  • Superabrasive compact with selected interface and rotary drill bit including same
    Patent number: 7493972
    Abstract: A superabrasive compact including a superabrasive layer bonded to a substrate along a selected interface is disclosed. In one embodiment, an interface may comprise a depression and a dividing wall, wherein the dividing wall forms at least one closed plane figure. In another embodiment, an interface may comprise a depression, a dividing wall forming at least one closed plane figure, and at least one raised feature positioned within the depression. In a further embodiment, an interface may comprise a depression formed into the substrate, the depression surrounded by a closed peripheral wall exhibiting a thickness of about 0.080 inches or less. A rotary drill bit including at least one cutting element is also disclosed.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: February 24, 2009
    Assignee: US Synthetic Corporation
    Inventors: Scott M. Schmidt, Michael John Sandstrom