专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明专利

JPH0791582A BRANCH PIPE CONNECTING JOINT 失效
公开(公告)号：JPH0791582A
公开(公告)日：1995-04-04
申请号：JP23442193
申请日：1993-09-21
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORI YOJI , KATO KATSUTOSHI , NAKAO TOMOYOSHI , MINAMIDE YOSHIAKI , TANEDA YUKIO
IPC分类号： F16L41/02 , F16L41/08
摘要： PURPOSE:To prevent surely fluid from leaking from a spot of mounting a branch pipe connecting joint in connecting the branch pipe to a main pipe such as a gas pipe by mounting a tubular support and retainer respectively to a tubular bed seat and the tubular support to locate the surface of a retainer supporting collar part opposedly to the other end face of the tubular part of the bed seat. CONSTITUTION:When a branch pipe connecting joint is assembled in a superannuated main pipe 1 formed on the inner peripheral surface with a resin coated layer 11, a washer body 20 is fitted to a shaft part 72 of a tubular support 7, while a second seal member 10 is attached to the shaft part 72. Also, a first seal member 8 is attached to a tubular part 91 of a retainer 9 to overlap a support collar part 93 of the retainer 9 and then the tubular part 91 of the retainer 9 is fitted to the shaft part 72 of the tubular support 7. A male screw 71 of the tubular support 7 is screwed into a female screw of a bed seat 6 to be temporarily mounted. Then, a tubular part 62 of the bed seat 6 is dropped into a through hole 12 in the main pipe through a screw hole 46 in a saddle 4, while the bed seat 6 is rotated so that an engaged part 69 is engaged with an held by an engaging part 47 on the saddle 4 side.

62. 发明专利

JPH0771427A SHAFT COUPLING FOR SHAFT BODY HAVING SCREW 失效
公开(公告)号：JPH0771427A
公开(公告)日：1995-03-17
申请号：JP573893
申请日：1993-01-18
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： YAMADA KAZUYA
IPC分类号： F16B7/18 , F16L33/00 , F16L33/28
摘要： PURPOSE:To easily couple a shaft coupling to the internal surface of a threaded body well matching a large pitch of helical threads, and almost eliminate a restriction on the extension of the axial length of the threads by providing a helically threaded metal inner tube and an outer tube surrounding the entire length of the inner tube. CONSTITUTION:A shaft coupling 1A has a metal inner tube 2 and a metal outer tube 3 having larger wall thickness than the inner tube 2. The wall of the inner tube 2 is molded over entire length thereof so as to have helical threads 4. Also, the threads 4 have a corrugated form of cutout edge, and a pitch between the adjacent ridges 4a or the roots 4a and 4b thereof is made identical at any position. In addition, the pitch is made to suit a pitch between the helical threads of a threaded shaft body. For the inner tube 2, a steel tube such as a high strength structural steel pipe rolled and helically corrugated to have the threads 4 is used and the inner tube 2 can be thus easily and accurately fabricated, regardless of the length thereof.

63. 发明专利

JPH06346996A BRANCH PIPE CONNECTING JOINT 失效
公开(公告)号：JPH06346996A
公开(公告)日：1994-12-20
申请号：JP13741693
申请日：1993-06-08
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORI YOJI , KATO KATSUTOSHI , NAKAO TOMOYOSHI , MINAMIDE YOSHIAKI , OTSUBO SATORU
IPC分类号： F16L41/06
摘要： PURPOSE:To prevent leakage of fluid through a coupling spot between a main pipe and a branch pipe connecting joint and to firmly mount the branch pipe connecting joint on the main pipe despite of the bore of the main pipe, in the branch pipe connection coupling used when a branch pipe is connected to the main pipe. CONSTITUTION:A pair of saddless 4A and 4B are fixed to a main pipe 1 by using a fastening member 5 and a base seat 6 for connecting a cylindrical branch pipe is attached to one saddle 4A. The male screw 71 of a cylindrical support body 7 is screwed in a female screw 63 on the base seat 6 side and a cylindrical seal member 8 is pushed up by the flange part 73 of the support 7. The seal member 8 is expanded and deformed through operation of the taper surface 64a on the base seat 6 side, and adhered on the inner surface of a lining layer 11 formed at the main pipe 1. The seal member 8 is nipped between a flange part 73 and the inner surface of a lining layer 11 to provide seal operation.

64. 发明专利

JPH06241374A BRANCH PIPE CONNECTION JOINT 失效
公开(公告)号：JPH06241374A
公开(公告)日：1994-08-30
申请号：JP3050993
申请日：1993-02-19
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORI YOJI , KATO KATSUTOSHI , NAKAO TOMOYOSHI , MINAMIDE YOSHIAKI , OTSUBO SATORU
IPC分类号： F16L41/08
摘要： PURPOSE:To prevent fluid from leaking from a branch pipe connection joint and fix it securely to a main pipe irrespective of the bore of the main pipe. CONSTITUTION:A pair of saddles 4A and 4B are fixed to a main pipe 1 by using a tightening member 5, and a cylindrical branch pipe connecting pedestal 6 is mounted on one side saddle 4A. Also a cylindrical support body 7 is screwed into a screw hole 63 in the pedestal 6, and a seal member 8 is compressed in axial direction by the flange part 73 of the cylindrical support body 7 and the protruded part 64 of the pedestal 6 so as to swell the seal member 8 in radial direction. Thus the seal member 8 is closely stuck to the wall surface of a through-hole 12 on the main pipe 1 side so as to exhibit sealing effect.

65. 发明专利

JPH06185686A PIPE JOINT FOR CONNECTING BRANCH PIPE 失效
公开(公告)号：JPH06185686A
公开(公告)日：1994-07-08
申请号：JP34042892
申请日：1992-12-21
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORI YOJI , KATO KATSUTOSHI , NAKAO TOMOYOSHI , MINAMIDE YOSHIAKI , OTSUBO SATORU
IPC分类号： F16L41/08
摘要： PURPOSE:To provide a pipe joint which can be attached with a high fastening strength, irrespective variations in the diameter and wall thickness of a main pipe and which can surely prevent external leakage of fluid from the pipe. CONSTITUTION:An insertion part 5B of a pipe connecting pedestal 5 for connecting a branch pipe is screwed into a thread hole 10 of a main pipe 1 so that a saddle part 5A of the pedestal 5 is set on the main pipe 1, and a rectangular head 19A of a manual tool 19 is fitted in a rectangular cross-sectional shape through-hole 8c formed in a cylindrical support member 8 which is temporarily retained by being screwed in a thread hole 15 in the insertion part 5B for attaching the cylindrical support member, and is then rotated. Accordingly, the support member 8 is advanced so that the a cylindrical seal member 7 and a back-up ring 18 which are loosely fitted in a lower flange part 8B of the cylindrical support member 8 are made into press-contact with a tapered surface 16 at the lower end of the insertion part 5B so as to be deformed, thereby the cylindrical seal member 7 is made into close contact with the tapered surface 16 and the inner surface of a lining layer 9, spanning therebetween.

66. 发明专利

JPH06109193A PIPE JOINT FOR PROTECTING TUBE OF BURIED COMMUNICATION CABLE, ETC. 失效
公开(公告)号：JPH06109193A
公开(公告)日：1994-04-19
申请号：JP25275392
申请日：1992-09-22
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： INOUE MASACHIKA , NAGAYAMA SEIICHI
IPC分类号： F16L47/00
摘要： PURPOSE:To improve transporting efficiency by improving the connecting work ability of a protecting tube to prevent the breakage of a connecting part, and giving a flexible angle to the protecting tube to make an about uniformly thick concrete properly protect a cable even in the bent part of a side-ditch part. CONSTITUTION:Pipe inserting ports 21B, 21B are formed at both the axial ends of a cylindrical joint body 2, and annular elastic sealing members 7, 7 to adhere onto the outer peripheries of the ends of protecting tubes 3, 3 are fittedly attached to the pipe inserting ports 21B, 21B.

67. 发明专利

JPH0617979A PIPE JOINT AND PIPING CONNECTION USING THIS 失效
公开(公告)号：JPH0617979A
公开(公告)日：1994-01-25
申请号：JP17249492
申请日：1992-06-30
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： INOUE MASACHIKA , NAGAYAMA SEIICHI
IPC分类号： F16L21/02 , F16L21/08
摘要： PURPOSE:To easily connect a piping member and a joint main body together in an integrated form by slightly inserting the end part of the piping member into a piping socket of the joint main body, by heating a heat contraction ring from the external surface side of the joint main body to contract the ring, and whereby making the ring pressure contact with the piping member. CONSTITUTION:A pipe joint 1 suitable for connecting piping members 2 and 2 for protecting communication cable embedded in asphalt-paved road, has a cylindrical joint main body 4 provided with piping sockets 3 in both ends. A heat contraction ring 6 of tapered inner surface, which is made of a shape memory alloy that is contracted when heated, is fitted into an annular ring 5 provided on the inner circumferential surface of the sockets 3 of the joint main body 4. A through stop ring 7 consisting of an annular band 7a which is freely contracted and extended such as rubber, and a through stop ball 7b which is stored in a hole provided at a fixed interval in the circumferential direction of the band 7a, is fitted in the heat contraction ring 6. A packing 9 is fitted in an annular recessed part 8 formed on the opening end part of the inner circumferential surface of the sockets 3.

68. 发明专利

JPH0552287A ELBOW HAVING GROOVE AND GROOVE WORKING MACHINE THEREOF 失效
公开(公告)号：JPH0552287A
公开(公告)日：1993-03-02
申请号：JP21070891
申请日：1991-08-22
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： MATSUURA HARUKI , FUJINAMI MASAYUKI , TSUJI TOSHIHIDE
IPC分类号： F16L41/02 , B21D1/00 , B21D17/04
摘要： PURPOSE:To provide an elbow which is made of iron and has an annular groove and provide a working machine for making the elbow. CONSTITUTION:An elbow 25 which is made of iron and has an annular groove is equipped with a neck part 25A at least on one edge side in the and direction, and an annular groove 25B in the circumferential direction is formed on one edge side in the axial direction. Further, as for a working machine, the neck part 25A of the elbow 25 is externally fitted on a shaping roll 23 which revolves simultaneously with a main rotary shaft 20 and whose top edge part is formed thinner towards the top edge through chamfering 23A, and after the edge surface is attached on the front surface of a contact plate 24, the first and second movable blocks 9 and 10 are lowered. The annular groove 25B is formed by gradually pushing a part of the neck port 25A into an annular groove 23B of the shaping roll 23 by the annular projection part 11A of a pressing roll 11 whose swings in the axial and radial directions are regulated by the supporting rolls 13 and 14.

69. 发明专利

JPH0549710A PIPE, HEADER, AND PIPING STRUCTURE 失效
公开(公告)号：JPH0549710A
公开(公告)日：1993-03-02
申请号：JP21388691
申请日：1991-08-26
申请人： TAKENAKA KOMUTEN CO , NIPPON KOKAN PIPE FITTING MFG
发明人： OOI MOTONORI , ASADA KAZUO , NISHI YASUYUKI , TOMATSU TOSHIYUKI , TOUJIYA SHIGENORI , MATSUURA HARUKI
IPC分类号： A62C35/68
摘要： PURPOSE:To provide a flexible fire pipe structure far fire extinguishment vertically adjustable at a piping position and horizontally adjustable in a narrow range, and easily and speedily being set by a bending work in a narrow space wherein the flexible fire pipe is prevented from extending or deforming thereof by water pressure. CONSTITUTION:A mechanical joint 30 equipped with the slip-off preventing function for a flexible fire pipe A by a slip preventing ring 41 is connected at the branched position of a main pipe 20 for extinguishment. A recessed fitting part 4 engaged with the slip-off preventing ring 41 in the case where the flexible fire pipe A tends to slip out from the mechanical joint 30 is formed. The pipe A has different diameter parts 2 and 3 for flexure.

70. 发明专利

JPH0518668A METHOD AND APPARATUS FOR OPERATING CUPOLA FURNACE 失效
公开(公告)号：JPH0518668A
公开(公告)日：1993-01-26
申请号：JP16716991
申请日：1991-07-08
申请人： OSAKA GAS CO LTD , OSAKA GAS CHEM KK , NIPPON KOKAN PIPE FITTING MFG
发明人： OKUDA KOJI , OOHARI HIROO , MIYAKE YASUO , SUZUKI SHOJI , NAOKAWA HIDEO
IPC分类号： F27B1/00 , F27B1/26
摘要： PURPOSE:To produce molten metal having a desired property by a method wherein degrees of progress and reliability of actual operating results between the latest and present measured values for control items are determined to find out a control item having the highest degree of reliability, the amount of change of operating condition to be predetermined is decided according to the degree of progress of the control item and a cupola furnace is operated. CONSTITUTION:Two or more control items, that are required for molten metal from a cupola furnace to attain desired values during operation of the cupola furnace, are measured twice or more with the lapse of time. The progress degrees A-F of actual operating results between the latest and present measured values of control items are determined according to the results of measurements. The degree of reliability CCF corresponding to each degree of progress is determined. The degree of reliability relies on the elapsed time from the time of measurement of line control items till the time of present diagnose. The obtained degrees of reliability of control items are compared with each other to find out a control item having the highest degree of reliability, the amount of change of operating condition to be predetermined is decided according to the degree of progress of the control item, and the cupola furnace is operated.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式