Patents Assigned to Servoindikator HB
  • Pointing device carried by digging arm of excavator, for dynamically indicating location and direction of extension of underground cable
    Patent number: 5371959
    Abstract: A pointer intended for attachment to the digging arm of an excavator, is characterized by an elongated arm which can be pivoted on the digging arm using a drive whose driving movements are activated and controlled by the magnetic field generated by an underground cable, conduit or like conductor in a manner such as to cause the pointer to point towards the cable, conduit or like conductor independently of the position of the digging arm.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: December 13, 1994
    Assignee: Servoindikator HB
    Inventor: Wilgot Ahs