Patent application number | Description | Published |
20080295363 | Extendable excavating screw unit equipped with hydraulic excavating auxiliary blades - An excavating screw unit equipped with a hydraulic excavating auxiliary blades has developed for an auger crane, comprising: an extension unit having auxiliary excavating blade, cylinder mounting hole, built-in fluid passages in extension unit, hydraulic cylinder, piston, and extension guiding rods; an excavation column formed a hollow center of a square-shaped to mount on top of extension unit; an extension rod having an outer square-shape to fit into the excavation column, a built-in hydraulic passages in the extension rod, at top portion of the extension rod, an inlet and outlet that is bent right angle at top portion of the hydraulic passages to connect to hydraulic tubes, the extension rod is sliding to extend or retract through the excavation column. The extended excavating auxiliary blades are maintained by the pressurized fluid to prevent retracting by digging resistance during the excavating. Thus, this mechanized excavating device is easily digging a burial hole for a utility pole and underbracing. | 12-04-2008 |
20090000100 | Spacer jig for replacing spacer damper of overhead power lines and method of replacing spacer damper using the same - A spacer jig using as a tool has developed for easily replacing the spacer dampers on the overhead power lines during the maintenance and repair. The spacer jig is comprised of: a frame having a polygonal shape of two flat panels in parallel with a clearance for mounting the fixtures arranged even intervals in the radial direction between the two flat panels; the frame having square shape using for four-conductor and hexagonal shape using for six-conductor overhead power lines; the fixtures consisting of stationary hexahedron nuts and rotational hexahedron nuts; a clamping arm forming cylindrical-shaped long shafts with threaded end portion for inserting into the fixtures; a cable gripping unit consisting of a clamp, lid, snapping latch and locking detent for easily opening and closing the lid to grip or release the cables, and a clamp mounting unit for rotationally mounting the cable gripping unit on top of the clamping arm. | 01-01-2009 |
20090013618 | C-type underbracing having enlarged end portions for installing on utility pole - A C-type underbracing has developed for installing on a lower portion of a utility pole for firmly anchoring the utility pole. The underbracing is comprised of: a body ( | 01-15-2009 |
20090035070 | Method for installinig an arch-type underbracing on a utility pole for an overhead line by using extendable excavating unit for auger crane - A method for installing a utility pole and arch-type underbracing has developed by using an extendable excavating unit mounted on an auger crane. The method comprises two steps of excavation that: the primary hole is excavated about 75 cm in depth by extending an arm about 80 cm diameter of the extendable excavation unit. The secondary hole is excavated to have a standard depth for erecting the utility pole. Then, orientation of the arch-type underbracing is determined for setting on the primary hole. An underbracing hook is installed to the arch-type underbracing for lifting and attaching a U-bolt temporarily to the arch-type underbracing by surround the utility pole. A lead wire of the arch-type underbracing is connected to an earth wire of the utility pole. The arch-type underbracing is tightened with the U-bolt surrounded the utility pole. The excavated soil is filling back into the gaps around the utility pole and the holes by tempering. | 02-05-2009 |
20090169309 | Method for replacing concrete utility pole without interrupting power supply by adopting pole clamp and pole crusher - A method of replacing a concrete utility pole for the overhead distribution line without interrupting service is developed by adopting a pole clamp and pole crusher, whereby work stability is excellent and utility pole replacement work can be carried out quickly and effectively. The method is comprised of a process for connecting a pole clamp to the end portion of the boom of an auger crane, mounting the pole clamp onto the outer circumference of the old concrete utility pole to be replaced; mounting a pole crusher to the old utility pole below the pole clamp using a hot-line bucket truck, crushing the concrete of the old utility pole, cutting the reinforcing bars of the old utility pole, removing the lower portion of the old utility pole, erecting and installing a new utility pole, and relocating the arms and wires to the new utility pole. | 07-02-2009 |
20100269423 | C-type underbracing having enlarged end portions for installing on utility pole - A C-type underbracing has developed for installing on a lower portion of a utility pole for firmly anchoring the utility pole. The underbracing is comprised of: a body ( | 10-28-2010 |
Patent application number | Description | Published |
20090249872 | Dynamic balancing apparatus and method using linear time varying angular velocity model - Provided is a dynamic balancing apparatus using a linear time-varying angular velocity model, which includes a rotational shaft on which a rotational body having a rotating unbalanced mass is installed; a linear time-varying angular velocity generator which allow the rotational shaft to be rotated at a linear time-varying angular velocity; a support for supporting both sides of the rotational shaft; and a transducer for measuring applied force or vibration transferred to the support by revolution of the rotational shaft having a linear time-varying angular velocity. | 10-08-2009 |
20090255334 | Dynamic balancing apparatus and method using simple harmonic angular motion - Provided is a dynamic balancing apparatus using a simple harmonic angular motion, including a rotational shaft on which a rotational body having an unbalanced mass is installed; a simple angular motion generator for periodically vibrating the rotational shaft; a support for supporting both sides of the rotational shaft; an angular vibration measuring sensor for measuring the simple harmonic angular motion of the rotational shaft; and force or vibration transducers for measuring applied force acting on or vibration transferred to the support by means of the simple harmonic motion of the unbalance mass. | 10-15-2009 |
20120091356 | APPARATUS FOR DETECTING RADIATION SOURCE AND METHOD OF DETECTING RADIATION SOURCE USING THE SAME APPARATUS - An apparatus for detecting a radiation source includes a collimator configured to have an optical path for converging radiation formed therein, a radiation sensor provided at the end of the optical path and configured to measure the intensity of radiation incident on the optical path, a rotation driving unit connected to the collimator and configured to rotate the collimator up and down and left and right, movement means configured to move the collimator and the rotation driving unit along the surface of land, a position tracking unit provided within the collimator and configured to track a current position and to measure a distance moved by the movement means, and a radiation position information processing unit configured to obtain direction information and information about the distance to the radiation source based on a maximum intensity of radiation, measured by the radiation sensor, and the movement distance. | 04-19-2012 |