Patents Assigned to Geomatic
  • Insitu soil shear measurement apparatus
    Patent number: 4649741
    Abstract: A testing apparatus for measuring soil shear strength which includes a torque motor connected to a torque shaft, torque cell and vane which extend beneath the soil surface. The torque cell is located between the shaft and the vane; and measures soil shear strength. It includes a torque transmission member on which an electrical transducer is mounted; and a housing which surrounds the transmission member and defines an annular cavity which protectively surrounds the transducer.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: March 17, 1987
    Assignee: Geomatic
    Inventor: James A. Strom