Patents Assigned to Daewon Electric Co. Ltd.
  • Patent number: 11848545
    Abstract: Proposed are a device which is used as both a taping device and a stripping device and is used for stripping or taping a coating of an extra-high-voltage wire in a live wire state and, more particularly, an automatic opening and closing stripping device for an indirect live wire having wire stripping and taping functions, and methods for stripping and taping an indirect live wire using the automatic opening and closing device. The automatic opening and closing stripping device for an indirect live wire having wire stripping and taping functions allows an insulation stripping or taping operation to be performed on a wire in a live wire state while not being close to the wire, thus securing safety, allows a stripping operation and various taping operations to be performed by using one equipment.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: December 19, 2023
    Assignees: DAEWON ELECTRIC CO., LTD, DAEWON INDUSTRY COMPANY
    Inventor: Sae Won Kwon
  • Patent number: 11717942
    Abstract: The present invention relates to a manual hydraulic multi-functional extra-high-voltage insulating gear gripper pliers stick for live-wire work and the pliers stick and, more specifically, to a manual hydraulic multi-functional extra-high-voltage insulating gear gripper pliers stick for live-wire work and an indirect live-wire construction method using the pliers stick, which: allow components or the like, which are installed on and removed from an electric pole in order to perform electric wire-stringing work or fix electric wires, to be remotely constructed by means of the indirect live-wire work while maintaining a safe distance from live wires when constructing power distribution equipment in an extra-high-voltage live-wire state; ensure safety by eliminating risks due to instability during work, said instability occurring due to the intensity of the labor and the physical limitations of the workers; and bring about improvements in utilization efficiency.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: August 8, 2023
    Assignees: DAEWON ELECTRIC CO., LTD., DAEWON INDUSTRY COMPANY
    Inventor: Sae Won Kwon
  • Patent number: 11667013
    Abstract: The present invention relates to a manual hydraulic multi-functional extra-high-voltage insulating gear gripper pliers stick for live-wire work and the pliers stick and, more specifically, to a manual hydraulic multi-functional extra-high-voltage insulating gear gripper pliers stick for live-wire work and an indirect live-wire construction method using the pliers stick, which: allow components or the like, which are installed on and removed from an electric pole in order to perform electric wire-stringing work or fix electric wires, to be remotely constructed by means of the indirect live-wire work while maintaining a safe distance from live wires when constructing power distribution equipment in an extra-high-voltage live-wire state; ensure safety by eliminating risks due to instability during work, said instability occurring due to the intensity of the labor and the physical limitations of the workers; and bring about improvements in utilization efficiency.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 6, 2023
    Assignees: DAEWON ELECTRIC CO., LTD., DAEWON INDUSTRY COMPANY
    Inventor: Sae Won Kwon
  • Patent number: 9634470
    Abstract: The present invention relates to a distribution line, and more particularly, to a method of constructing a distribution line using an extra-high voltage neutral line combined with an overhead earth wire having a separate installation structure of the extra-high voltage neutral line and a low-voltage neutral line for improving electric power quality, in which a distribution line simultaneously perform functions of an overhead earth wire for shielding lightning, an extra-high voltage neutral line for returning unbalanced currents and fault currents and an optical communication line for establishing a communication network, such that a number of disconnections of power lines is reduced by reducing surge voltage thereby achieving excellent lightning shielding effects such as improved power quality, etc., construction costs are reduced, load is reduced, construction quality is improved, and aesthetic features of the urban area is improved by simplifying the distribution equipment.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 25, 2017
    Assignee: DAEWON ELECTRIC CO., LTD
    Inventor: Sae Won Kwon
  • Patent number: 8079122
    Abstract: 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.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: December 20, 2011
    Assignee: Daewon Electric Co. Ltd.
    Inventors: Sae Won Kwon, Gap Young Cheong, Hyuek Gi Lee
  • Patent number: 7980030
    Abstract: 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 (12) formed a half-annular or C-shape with a rectangular cross section; a pair of the enlarged end portions (11, 11?) having larger rectangular cross section than that of the body; a pair of the conjunction (17, 17?) for connecting between the body and the enlarged end portions; a hook receiving hole (13) horizontally through a center of the body, and a pair of nut mounting portions (16, 16?) formed flat surfaces for seating the nuts and a pair of slit-shaped holes (14, 14?) for horizontally inserting U-bolts (20) through the body portion, the nut mounting portions and slit-shaped holes disposed both sides of said hook receiving hole, and an earth plate (30) made of conductive material is attached to the bottom surface of the body.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: July 19, 2011
    Assignee: Daewon Electric Co. Ltd.
    Inventor: Sae Won Kwon
  • Patent number: 7815399
    Abstract: A method of mechanized construction has developed for installing an earth wire under-bracing by using an auger crane and adjustable excavating unit with an auger crane. The extendable excavating unit is mounted to the lower end of an auger shaft of the auger crane and excavation teeth extendable and retractable are mounted to the excavating unit, thereby allowing excavation of a burial hole suitable to the size of the earth wire under-bracing. Whether it is needed to bury the earth wire under-bracing having a larger diameter than the diameter of excavation existing on the auger crane, or bury small-sized earth wire under-bracing, a method for mechanized construction of the earth wire under-bracing is enabled without difficulty by using an auger crane and adjustable excavating unit.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: October 19, 2010
    Assignee: Daewon Electric Co. Ltd.
    Inventors: Sae Won Kwon, Dong Hwi Shin, Dong Hwan Park
  • Patent number: 7614170
    Abstract: 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.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: November 10, 2009
    Assignee: Daewon Electric Co. Ltd.
    Inventor: Sae Won Kwon
  • Patent number: 7600947
    Abstract: 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.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: October 13, 2009
    Assignee: Daewon Electric Co. Ltd.
    Inventor: Sae Won Kwon
  • Patent number: 7387294
    Abstract: A method for distributing power has developed without cutting off power supplying while a live electric wire is replaced on the electric poles by using a wire changing device for replacing the electric line, relocating the electric poles and alteration of the power distribution route. Replacement operation of the live electric wire is sequentially performed by connecting new wire and separating old wire by the wire changing device mounted on each electric pole without using bypass cable. The wire changing device comprises a cross-arm fastening unit, wire replacing unit and axial-rotating unit having a central arm fixture, axial shaft, arm coupling and position locking unit. The wire changing method comprises the steps of: mounting the wire changing device on each electric pole, replacing new and old wires without cutting off power supply, arranging the wire space, installing and tightening the new wire on each LP insulator of the electric pole, and removing the separated wire.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: June 17, 2008
    Assignee: Daewon Electric Co., Ltd
    Inventor: Sae Won Kwon
  • Patent number: 7216850
    Abstract: A device for changing an electric wire and method for distributing power without cutting off power supply has developed for replacing the live electric line on the electric poles, relocating the electric poles and alteration of the power distribution route. Replacement operation of the live electric wire is sequentially performed by connecting new wire and separating old wire by the wire changing device mounted on each electric pole without using bypass cable. The wire changing device comprises a cross-arm fastening unit, wire replacing unit and axial-rotating unit having a central arm fixture, axial shaft, arm coupling and position locking unit. The wire changing method comprises the steps of: mounting the wire changing device on each electric pole, replacing new and old wires without cutting off power supply, arranging the wire space, installing and tightening the new wire on each LP insulator of the electric pole, and removing the separated wire.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: May 15, 2007
    Assignee: Daewon Electric Co. Ltd.
    Inventor: Sae-Won Kwon
  • Patent number: 7007929
    Abstract: The present invention discloses a wire stranding roller and a new method for the same, in a LP insulator being mounted at a cross arm of pin long column and insulating and supporting a high voltage wire, which drastically improves workability and greatly reduces construction cost because the location of a wire don't need to be changed after the stranding and wire pulling, which is easy to work with and is very effective in reducing labor cost and preventing a safety accident because it can easily perform wiring and removing works no matter how large the weight of the wires would be, which is capable of precisely adjusting a dip (degree in which the wire hangs down) because the wire are placed on an insulator, which is to be mounted, during a wire pulling work and also which can solve the problem of securing a work space when carrying out the work applying and uninterruptible method by forming a open-and-shut roller capable of wire insertion and a wire stranding roller consisting of an insulator coupling openi
    Type: Grant
    Filed: June 1, 2002
    Date of Patent: March 7, 2006
    Assignee: Daewon Electric Co. Ltd.
    Inventor: Sae-Won Kwon