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公开(公告)号：US20220330387A1
公开(公告)日：2022-10-13
申请号：US17713407
申请日：2022-04-05
申请人： UNION CO., LTD.
发明人： Kyung Sang CHO , Ha Kyung CHANG
IPC分类号： H05B3/56 , H01R13/533 , H05B3/36
摘要： Disclosed are a heating cable connecting device and a flexible heater employing the same, in which the heating cable connecting device insulates a heating cable applied to a flexible heater to connect the heating cable to a terminal unit and includes a cooling device configured to connect one end of the heating cable to one end of a connecting cable to form a cooling section and an insulating device configured to insulate an opposite end of the connecting cable to connect an opposite end of a lead wire having one end connected to the terminal unit to the opposite end of the connecting cable. The cooling device and the insulating device are provided on inside and outside surfaces of the flexible heater, respectively, so that a power supply line can be thermally and electrically insulated.
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公开(公告)号：US20210062940A1
公开(公告)日：2021-03-04
申请号：US17001019
申请日：2020-08-24
申请人： UNION CO., LTD.
发明人： Kyung Sang CHO
摘要： Disclosed are a flexible pipe and an exhaust heating system with the same. The flexible pipe includes double pipe-structured fixed sections having constant length and straight shape, and at least one flexible section provided between the fixed sections and variable in length and shape, wherein the flexible section is provided as a triple structure including an outer bellows pipe having a shape of a corrugated pipe, an inner bellows pipe provided inside the outer bellows pipe, and an interlock pipe provided inside the inner bellows pipe, and a heater is installed on an inner pipe of the fixed section having the double pipe structure in a fixed section applied to an input end connected to a vacuum pump among the fixed sections to intensively supply heat, so that the powder is prevented from being precipitated inside the flexible pipe.
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公开(公告)号：US20220329003A1
公开(公告)日：2022-10-13
申请号：US17713430
申请日：2022-04-05
申请人： UNION CO., LTD.
发明人： Kyung Sang CHO , Ha Kyung CHANG
IPC分类号： H01R13/533 , H05B3/56
摘要： Disclosed are a heating cable connecting device and a flexible heater employing the same, in which the heating cable connecting device insulates a heating cable applied to a flexible heater to connect the heating cable to a terminal unit and includes an explosion-proofing device configured to be connected to one end of a connecting cable by explosion proofing one end of the heating cable, and an insulating device configured to insulate an opposite end of the connecting cable to connect the opposite end of the connecting cable to an opposite end of a lead wire having one end connected to the terminal unit. The explosion-proofing device and the insulating device are provided on inside and outside surfaces of the flexible heater, respectively, so that a power supply line can be thermally and electrically insulated.
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公开(公告)号：US20210108746A1
公开(公告)日：2021-04-15
申请号：US17038448
申请日：2020-09-30
申请人： UNION CO., LTD.
发明人： Kyung Sang CHO
摘要： Disclosed are a flexible pipe and a manufacturing method thereof. The flexible pipe includes an outer bellows formed in a corrugated tubular shape with mountains and valleys, an inner bellows formed in a corrugated tubular shape with mountains and valleys and provided inside the outer bellows, a pair of flanges connected to both ends of the outer bellows and the inner bellows, respectively, and a detection unit for checking whether leakage occurs due to damage or breakage of the outer and inner bellows by detecting an amount of oxygen present in an air having an atmospheric pressure and filled in an atmospheric space between the outer and inner bellows. Leakage due to damage or breakage of the outer and inner bellows can be detected based on variation in the amount of oxygen present in the space between the outer bellows and the inner bellows.
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公开(公告)号：US20190048780A1
公开(公告)日：2019-02-14
申请号：US16079734
申请日：2017-02-08
申请人： UNION CO., LTD.
发明人： Kyung Sang CHO
IPC分类号： F01N13/18 , B21D26/047 , F16L9/06 , F16L51/02
摘要： The present invention relates to a bellows having tweezers-shaped corrugated portions for increasing resistance and restoring force against torsion, and a method for manufacturing the same, the bellows comprising: a first flat part having a flat cylindrical shape; a second flat part having a flat cylindrical shape and disposed opposite to the first flat part; and a plurality of corrugated portions, each having a tweezers shape and disposed between the first flat part and the second flat part, wherein each of the plurality of corrugated portions is sequentially connected to each other, so as to increase resistance and restoring force against torsion.
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