Patents by Inventor Michael D. Vercher

Michael D. Vercher 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).

  • Roller reamer compound wedge retention
    Patent number: 9157282
    Abstract: A roller reamer includes a roller assembly deployed in a corresponding axial recess in a tool body. The roller assembly is retained in the axial recess via compound wedging action provided by at least one retention assembly. The retention assembly includes first and second wedges, the first of which converts a substantially radially directed force to an axially directed force and the second of which converts the axially directed force to a cross-axially directed retention force that retains the roller assembly in the axial recess.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 13, 2015
    Assignee: Smith International, Inc.
    Inventors: Brian Mohon, Michael D. Vercher, Vishal Saheta, Ken Yik Kan Leung