Sung-Bok
Sung Bok Kim, Gwangju KR
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20160069385 | BEARING VARIABLE PRELOAD SYSTEM UTILIZING GAP BETWEEN STROKES FOR PRELOAD ADJUSTMENT AND ELASTIC DEFORMATION OF SEALING MEMBER - A bearing variable preload system utilizing gaps between strokes for preload adjustment and elastic deformation of a sealing member, according to the present invention, comprises: a housing; bearings provided to the housing; a spindle coupled to the inner wheels of the bearings so as to rotate; and a variable preload unit provided to the housing, applying variable preload to the outer wheels of the bearings; a chamber comprised inside a variable preload unit in which the airtightness is maintained by a sealing member located between the housing member and pressing member touched with the outer wheels of the bearing; a pressure supply unit supplying air or oil pressure to a chamber through a supply pipe provided to the housing so as to vary a preload applied to the outer wheel of the bearing. According to the present invention, the spindle having the preload system has the effects on improving rigidness, preventing heat, reducing noise and vibration, extending the lifespan of the bearing or the like. | 03-10-2016 |
Sung Bok Kim, Daejeon KR
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20100246451 | Device and Method for Separation/Conversion of Multiband Signal - Provided are a method and device for separating and converting multiband signals. The device includes a photoelectric converter for converting an externally received optical signal into an electrical signal, a first switch for separating the converted electrical signal into signals according to frequency bands, a first mobile communication band-pass amplifier for amplifying a mobile communication network signal of the signals separated by the first switch, a broadband up-converter for up-converting a baseband signal of the signals separated by the first switch into a broadband signal, a first broadband amplifier for amplifying the broadband signal output from the broadband up-converter, and a transmitter for wirelessly transmitting the signals amplified by the first mobile communication band-pass amplifier and the first broadband amplifier. | 09-30-2010 |
Sung Bok Yoo, Yangsan KR
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20150314405 | APPARATUS AND METHOD FOR MANUFACTURING HEAT EXCHANGER FOR VEHICLE - An apparatus for manufacturing a heat exchanger for a vehicle has a plurality of cooling panels bonded to each other by pressing a cooling panel module where the plurality of cooling panels are stacked vertically, including: a fixing portion for supporting top and bottom ends of the cooling panel module; and a pair of elastic portions that are provided between the top or bottom end of the cooling panel module and the fixing portion, and are arranged symmetrically based on a top or bottom surface of the cooling panel module to compress the cooling panel module. | 11-05-2015 |
Sung-Bok Cho, Seoul KR
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20120001811 | VEHICLE ANTENNA - An antenna for a vehicle for enabling to design freely and enhance characteristics of the antenna such as isolation, etc. is disclosed. The antenna includes a substrate and a case configured to cover the substrate. Here, one or more radiator is disposed on an outer surface of the case, and a power is fed to the radiator from the substrate. | 01-05-2012 |
Sung-Bok Lee, Suwon-Si KR
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20090072322 | SEMICONDUCTOR DEVICES INCLUDING LINE PATTERNS SEPARATED BY CUTTING REGIONS - Semiconductor devices are provided. A semiconductor device can include a substrate and a plurality of dummy line patterns on the substrate that extend in a first direction parallel with one another. Each of the dummy line patterns can include a plurality of sub-line patterns aligned along the first direction and which are separated from each other by at least one cutting region therebetween. The dummy line patterns can include first and second dummy line patterns which are adjacent to each other in a second direction that is perpendicular to the first direction. At least one of the cutting regions between a pair of sub-line patterns of the first dummy line pattern is aligned with and bounded by one of the sub-line patterns of the second dummy line pattern in the second direction. | 03-19-2009 |
Sung-Bok Park, Gyeongsangnam-Do KR
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20160130787 | FLOW RATE CONTROL VALVE FOR CONSTRUCTION MACHINE - Disclosed is a flow rate control valve for a construction machine. A flow rate control valve for a construction machine comprises: a valve body having a pump channel for receiving operating oil from a hydraulic pump, a supply channel connected to the pump channel, and an actuator port connected to a hydraulic actuator; a spool installed inside the valve body to be switchable such that, when switched in response to application of signal pressure, the spool selectively causes the supply channel and the actuator port to communicate with each other; a tank channel installed inside the valve body and connected to an operating oil tank; and an orifice formed in the spool to have an inlet formed on an end and an outlet communicating with the tank channel, wherein, when the spool is initially actuated, a part of the signal pressure is discharged to the operating oil tank via the orifice. | 05-12-2016 |
Sung-Bok Park, Changwon-Si KR
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20130055886 | DOUBLE CHECK VALVE FOR CONSTRUCTION EQUIPMENT - An improved double check valve for a construction machine is provided, which can greatly reduce noise and hunting phenomenon by making check valves open and close within a predetermined time difference to correspond to pressure drops that occur due to an external load when a dozer blade working device is operated. The double check valve includes a hydraulic pump; a hydraulic cylinder connected to the hydraulic pump to drive a working device; a control valve installed in a flow path between the hydraulic pump and the hydraulic cylinder and shifted to control a start, a stop, and a direction change of the hydraulic cylinder; a pair of pistons installed on one side of a piston cylinder to open and close first flow paths and second flow paths provided between the control valve and the hydraulic cylinder, provided with plunger ground portions and notch portions, respectively, and dividedly formed to be shifted in opposite directions to each other when signal pressure that is introduced from any one of the first and second flow paths acts on check hydraulic pressure portions during temporary descending of the working device; a pair of check valves of which checking functions are released when the check valves are pressed through the shifting of the pistons; and a plunger installed inside the piston cylinder to move the pistons in a checking function release direction of the check valves while a flow rate of hydraulic fluid, having passed through the notch portions, forms pressure in the plunger ground portions of the pistons. | 03-07-2013 |
20140331661 | ENGINE CONTROL METHOD OF CONSTRUCTION MACHINE - An engine control system for a construction machine is disclosed, which can compulsorily stop engine driving when an attachment or the like malfunctions against an operator's intention during the operation of an excavator or the like. The engine control system includes a first step of determining whether pilot signal pressure, which is detected when at least one of an operation lever and a traveling pedal for respectively operating an attachment, a swing device, and a traveling device is operated, exceeds a first set pressure, and a second step of determining whether the pressure on the outlet side of a main hydraulic pump exceeds a second set pressure, wherein if the pilot signal pressure detected in the first step does not exceed the first pressure and the pressure of the main hydraulic pump detected in the second step exceeds the second pressure, engine driving is compulsorily stopped by means of a control signal from the controller. | 11-13-2014 |
20160130787 | FLOW RATE CONTROL VALVE FOR CONSTRUCTION MACHINE - Disclosed is a flow rate control valve for a construction machine. A flow rate control valve for a construction machine comprises: a valve body having a pump channel for receiving operating oil from a hydraulic pump, a supply channel connected to the pump channel, and an actuator port connected to a hydraulic actuator; a spool installed inside the valve body to be switchable such that, when switched in response to application of signal pressure, the spool selectively causes the supply channel and the actuator port to communicate with each other; a tank channel installed inside the valve body and connected to an operating oil tank; and an orifice formed in the spool to have an inlet formed on an end and an outlet communicating with the tank channel, wherein, when the spool is initially actuated, a part of the signal pressure is discharged to the operating oil tank via the orifice. | 05-12-2016 |
Sung-Bok Shin, Guri-Si KR
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20120326120 | TRANSPARENT LED WAFER MODULE AND METHOD FOR MANUFACTURING SAME - A transparent LED wafer module and a method for manufacturing the same are provided. In a conductor LED device epitaxial process, the conductor LED device is grown on a transparent material wafer, where both surfaces of the conductor LED device are entirely grown on the transparent material, and then a transparent glass substrate is restacked, thereby securing a high amount of light. | 12-27-2012 |