Patents Assigned to OPI Testing Equipment, Inc.
  • Coupler for viscometer bob shaft
    Patent number: 8763776
    Abstract: A coupler for attaching a lower segment of a viscometer bob shaft to an upper segment of a viscometer bob shaft includes an upper assembly connected to the upper segment, a lower assembly connected to the lower segment, a magnetic coupler, and a rotation connection.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: July 1, 2014
    Assignee: OPI Testing Equipment, Inc.
    Inventors: Richard Lukay, John Norwood