Patents Assigned to Enthios Corporation
  • Method and apparatus for checking elevation
    Patent number: 6389709
    Abstract: An apparatus for checking elevation between reference markers. The apparatus includes a measuring device (e.g., a tape measure) that can measure the distance from an elevated location to the ground immediately below the location. A sighting device and a leveling device (e.g., a hand level) are secured to the distance-measuring device so that a remote reference marker can be sighted. The distance-measuring device is calibrated such that it measures the distance from the ground to the centerline of the sighting device.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: May 21, 2002
    Assignees: Enthios Corporation
    Inventor: Scott M. Lunde