Patents by Inventor David B. Rhodes

David B. Rhodes 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).

  • Cargo-retaining bar support
    Patent number: 6874982
    Abstract: An adjustable cargo retaining system including a retaining member that is received by a retaining member support. A removable spacer urges the retaining member against the retaining member support.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 5, 2005
    Assignee: Mattel, Inc.
    Inventor: David B. Rhodes
  • Cargo-retaining bar support
    Publication number: 20040156692
    Abstract: An adjustable cargo retaining system. The system includes a retaining member that is received by a retaining member support, and a removable spacer that urges the retaining member against the retaining member support.
    Type: Application
    Filed: November 12, 2003
    Publication date: August 12, 2004
    Inventor: David B. Rhodes
  • Loose rock detector
    Patent number: 5024090
    Abstract: A loose rock detector comprises an impact tool for hitting the rock face, sensors for detecting acoustic, rock motion and/or impact force signals generated by movement of the impact tool against the face of the rock, a data processor responsive to the sensors for correlating the above signals in the time and/or frequency domain against predetermined relationships to detect loose rocks and to assess mass and degree of looseness of the rock, and a display unit for displaying the results of the correlation.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: June 18, 1991
    Assignee: HDRK Mining Research Limited
    Inventors: Michel J. Pettigrew, David B. Rhodes, Eric G. Lux, Victor A. Mason
  • Scanning afocal laser velocimeter projection lens system
    Patent number: 4346990
    Abstract: A method and apparatus for projecting and focusing parallel laser light beams from a laser doppler velocimeter on a target area. The system includes three lenses. Two lenses work together as a fixed afocal lens combination. The third lens is a movable scanning lens. Parallel laser beams travel from the velocimeter through the scanning lens and through the afocal lens combination and converge, i.e. are focused, somewhere beyond. Moving the scanning lens relative to the fixed afocal combination results in a scanning of the focus area along the afocal combination's optical axis.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: August 31, 1982
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: David B. Rhodes
  • Optical scanner
    Patent number: 4063814
    Abstract: The invention is an optical scanner that sequentially focuses optical energy (light) at selected points in space. The essential component of the invention is a scanning wheel including several glass windows with each window having a different thickness. Due to this difference in thickness, the displacement of the emerging light from the incident light is different for each window. The scanner transmits optical energy to a point in space while at the same time receiving any optical energy generated at that point and then moves on to the next selected point and repeats this transmit and receive operation. It fills the need for a system that permits a laser velocimeter to rapidly scan across a constantly changing flow field in an aerodynamic test facility.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: December 20, 1977
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: David B. Rhodes