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11. 发明专利

JPS60139360A RESIN CONVEYING PIG FOR REPAIRING PIPE JOINT PART OF EXISTING PIPE 失效
公开(公告)号：JPS60139360A
公开(公告)日：1985-07-24
申请号：JP24662883
申请日：1983-12-28
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： HAYASHI MITSUTOSHI , SAITOU ISAO , IKE NOBUKATSU , NAKAGAWA TOSHIO
IPC分类号： B05C7/08 , F16L55/16 , F16L55/18
摘要： PURPOSE:To safely move a pig even if a connection part is broken, by using a relatively hard rubbery material as the core material of the central part of the pig and connecting a leading end barrel piece and a mian body barrel piece in such a state that an embedded plate is interposed between both barrel pieces. CONSTITUTION:Pigs 2, 3 are formed of flexible rubbery material and each of them is divided into a plural pieces such as a leading end barrel piece 32 and a main body barrel piece 23 while an embedded plate 39 is interposed between the leading end barrel piece 32 and the main body barrel piece 34 to connect both of them in a columnar shape and a traction cable 4 is secured to the embedded plate 39 and the outer peripheral part of the main body barrel piece is constituted of a soft material and the central part is constituted of a hard material. By this structure, even when the securing and connection with the traction cable are broken in the intermediate part of the pig, the pig is compressed by friction resistance with the inner wall and the abrupt increase of friction resistance is prevented and the pig is safely taken out to the outside.

12. 发明专利

JPS60139992A INTRODUCTION SYSTEM INTO PIPE OF RESIN AND RESIN CARRYING PIG IN CASE OF REPAIR OF PIPE JOINT SECTION OF EXISTING PIPE 失效
公开(公告)号：JPS60139992A
公开(公告)日：1985-07-24
申请号：JP24662383
申请日：1983-12-28
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： HAYASHI MITSUTOSHI , SAITOU ISAO , IKE NOBUKATSU , OOSAWA TOSHIHIKO
IPC分类号： F16L55/16 , B05D7/22 , F16L55/10

13. 发明专利

JPS60139376A REPAIRING METHOD OF EXISTING PIPING 失效
公开(公告)号：JPS60139376A
公开(公告)日：1985-07-24
申请号：JP24663583
申请日：1983-12-28
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： KAMURO TAKASHI , OOTSUKA HISAO , SAITOU ISAO , KOGA MOTOYUKI
IPC分类号： F16L55/16 , B05D7/22 , F16L55/10 , F16L55/1645 , F16L55/18 , F16L58/10 , G01M3/28
摘要： PURPOSE:To perform the repairing of a conduit and a supply pipe while performing a test, by a method wherein the conduit is repaired after the supply pipe was repaired and the air-tightness test of the conduit is subsequently performed and the resin penetrated into the supply pipe is discharged at last. CONSTITUTION:A lining layer is formed to the inner surface of the side of a supply pipe 2 to perform inner surface repairing and a resin is subsequently moved through a conduit 1 by the traction of pigs 6, 7 to repair the conduit 1 while the branched mouth part of each supply pipe 2 is sealed by the penetrated resin. Succeedingly, the internal pressure of the supply pipe 2 is detected to confirm the air-tightness thereof and, thereafter, compressed air is introduced into the supply pipe 2 to discharge the penetrated resin into the conduit 1 from the branched mouth part. By this method, a series of repairing works are performed continuously.

14. 发明专利

JPS60139374A REPAIRING METHOD OF EXISTING PIPING 失效
公开(公告)号：JPS60139374A
公开(公告)日：1985-07-24
申请号：JP24663283
申请日：1983-12-28
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： KAMURO TAKASHI , OOTSUKA HISAO , SAITOU ISAO , KOGA MOTOYUKI
IPC分类号： F16L55/16 , B05D7/22 , F16L55/10 , F16L58/10
摘要： PURPOSE:To economically and accurately confirm repairing, by performing a test in such a state that a branched mouth part is brought to a closed state by a resin and an air supply means for testing air-tightness is provided behind the moving direction of the resin due to a pig. CONSTITUTION:When a resin D moves through a conduit 1 by tracting pigs 6, 7, the resin D is penetrated into the branched mouth part of each supply pipe 2 branched from the conduit 1 in the section after movement to successively close branched mouth parts. Furthermore, an air-tightness test unit 9 is attached to the terminal of each supply pipe 2. By this mechanism, the air-tightness of the repairing completed section can be confirmed during a working process and, therefore, enhancement of working efficiency is attained.

15. 发明专利

JPS59159494A Method of sealing joint section in pipe 失效
标题翻译：密封管接头部分的方法
公开(公告)号：JPS59159494A
公开(公告)日：1984-09-10
申请号：JP3040683
申请日：1983-02-25
申请人： Tokyo Gas Co Ltd
发明人： MORINAGA AKIO , SAKAGUCHI OUICHI , SAITOU ISAO , HAYASHI MITSUTOSHI
IPC分类号： F16L55/16 , C23F15/00 , F16L55/10

16. 发明专利

JPS59111811A Butt welder 失效
标题翻译：焊接机
公开(公告)号：JPS59111811A
公开(公告)日：1984-06-28
申请号：JP22150682
申请日：1982-12-16
申请人： Osaka Gas Co Ltd , Toho Gas Kk , Tokyo Gas Co Ltd
发明人： MORIOKA MASAKAZU , SAITOU ISAO , MATSUZAKI MASAHITO
IPC分类号： B29C65/00 , B29C53/00 , B29C65/18 , B29C65/20 , B29C65/34
CPC分类号： B29C65/34 , B29C65/20 , B29C66/1142 , B29C66/5221 , B29C66/71 , B29C66/73921 , B29C66/91643 , B29C66/92445 , B29C66/92921 , B29C66/944 , B29K2023/06
摘要： PURPOSE:To easily perform butt welding with good efficiency all the time by providing a control circuit to operate all the processes smoothly at preset pressing forces and time. CONSTITUTION:The ends of paired thermoplastic resin tubes to be butt-welded are polished, a heater is inserted between both the tubes, and the end faces of both the tubes are pressingly contacted with the heating face of the heater through an operating lever. When the pressing force through a torque wrench reaches a given set pressure, the timer 87 of a controller 85 is started through a start switch 86. At the same time, a pressing and welding process display lamp 51 is lighted through a drive circuit 50, and at the same time solenoids 43 and 44 are demagnetized. Thereby, a moving bar is fixed by a brake plunger, and the pressing forces of both the tubes are held. Under the condition, the pressing and welding process is performed for a given period of time by the timer 87 and the following processes, a heating and holding process, a heater removal process, a welding process, and a cooling process, are continuously performed at set pressing force and time. Better butt welding can thus be performed with good efficiency by an easy operation all the time.
摘要翻译：目的：通过提供控制电路，以预设的按压力和时间顺利地运行所有过程，以便以高效率轻松执行对接焊接。构成：对接成对的热塑性树脂管的端部进行抛光，在两管之间插入加热器，两个管的端面通过操作杆与加热器的加热面紧密接触。当通过扭矩扳手的按压力达到给定的设定压力时，控制器85的定时器87通过启动开关86启动。同时，按压焊接处理显示灯51通过驱动电路50点亮，并且同时螺线管43和44被去磁。因此，通过制动柱塞固定移动杆，并且保持两个管的按压力。在这种条件下，通过定时器87进行按压和焊接过程一段给定的时间，并且以下过程，加热保持过程，加热器去除过程，焊接过程和冷却过程在设定按压力和时间。因此，可以通过简单的操作始终以更好的效率进行更好的对接焊接。

17. 发明专利

JPS5894688A METHOD OF RENEWING BURIED PIPE TO NOVEL PIPE 失效
公开(公告)号：JPS5894688A
公开(公告)日：1983-06-04
申请号：JP19311281
申请日：1981-12-01
申请人： TOKYO GAS CO LTD
发明人： MORI KOUICHI , SAITOU ISAO
IPC分类号： F16L1/024

18. 发明专利

JPS55137190A ADDITION OF ODOR TO FUEL GAS 失效
公开(公告)号：JPS55137190A
公开(公告)日：1980-10-25
申请号：JP4395479
申请日：1979-04-11
申请人： TOKYO GAS CO LTD
发明人： KUROKI MASAAKI , TERASAKI TAJIROU , SAITOU ISAO , YAMAZAKI YUKIE
IPC分类号： C10L3/10 , C10L3/00
摘要： PURPOSE:To obtain a fuel gas having a desired odor easily, by adding separately t-butylmercaptan and ethyl acrylate, each being stored separately from each other, to a fuel gas. CONSTITUTION:In the separate storage tanks 3 and 4, t-butylmercaptan and ethyl acrylate are stored, respectively, and added separately to fuel gas in the gas line 1 from the pumps 5 and 6 and mixed by the gas mixer 2. Thus, the polymerization of ethyl acrylate can be completely prevented because only small smounts of t-butylmercaptan and ethyl acrylate are present in the fuel gas.

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