Patents by Inventor Jim Larsen MCLEAN

Jim Larsen MCLEAN 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).

  • Falling weight deflectometer
    Patent number: 10823654
    Abstract: A falling weight deflectometer comprising a load plate adapted to engage a test surface, force transmission means adapted to transmit a force to the load plate, buffer means, and a drop weight. The drop weight is adapted to impact the force transmission means via the buffer means so as to provide a force to be transmitted to the load plate via the force transmission means. The falling weight deflectometer further comprises at least one linear electric motor for lifting the drop weight to a predetermined height above the force transmission means.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 3, 2020
    Assignee: Dynatest A/S
    Inventors: Jim Larsen McLean, Ben Cumming, Jack Larsen, Albert Navarro Comes
  • A FALLING WEIGHT DEFLECTOMETER
    Publication number: 20180348107
    Abstract: A falling weight deflectometer (1) comprising a load plate (2) adapted to engage a test surface, force transmission means adapted to transmit a force to the load plate (2), buffer means (19), a drop weight (8). The drop weight (8) is adapted to impact said force transmission means via said buffer means (19) so as to provide a force to be transmitted to said load plate via said force transmission means. The falling weight deflectometer further comprises at least one linear electric motor (15) for lifting said drop weight (8) to a predetermined height above said force transmission means.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 6, 2018
    Applicant: Dynatest International A/S
    Inventors: Jim Larsen MCLEAN, Ben CUMMING, Jack LARSEN, Albert Navarro COMES