公开(公告)号：US4111464A

公开(公告)日：1978-09-05

申请号：US759700

申请日：1977-01-17

申请人： Teryoshi Asano ,  Sadao Fukuoka ,  Takashi Sawada

发明人： Teryoshi Asano ,  Sadao Fukuoka ,  Takashi Sawada

IPC分类号： F16L47/12 ,  F16L25/00

CPC分类号： F16L47/12 ,  Y10S285/921

摘要： A female pipe joint end 3 has a circular groove 11 and a rectangular circular groove 9 in its expanded inner periphery, and a mating male pipe joint end 6 has a tapered insertion edge 5 and a circular groove 7 in its outer periphery. The side wall of the groove 7 nearest the pipe end is perpendicular to the pipe axis; the opposite side wall is tapered. A packing seal 10 is disposed in the groove 11, and a continuous, relatively rigid locking ring 4 of synthetic resin is disposed in the groove 9 and snap fitted into the groove 7 during assembly. The ring 4 may have a bevelled lip 13, stepped inner and outer peripheries 15, 16, 17, or axial grooves 14 or holes 14' therethrough.

公开(公告)号：US4043574A

公开(公告)日：1977-08-23

申请号：US642042

申请日：1975-12-18

申请人： Teryoshi Asano

发明人： Teryoshi Asano

IPC分类号： F16L47/02 ,  F16L13/10

CPC分类号： F16L47/02 ,  B29C65/02 ,  B29C66/1222 ,  B29C66/1224 ,  B29C66/322 ,  B29C66/5221 ,  B29C66/52292 ,  B29L2023/00 ,  Y10S285/915

摘要： In a pipe fitting adapted for joining plastic pipes by fusing, one or more notches are provided in portions of the pipe fitting to receive molten resinous material overflowing during the fusing operation.

摘要翻译： 在适于通过熔融连接塑料管的管接头中，在管接头的部分设有一个或多个凹口，以在熔接操作期间接收熔化的树脂材料溢出。

公开(公告)号：US4100307A

公开(公告)日：1978-07-11

申请号：US857945

申请日：1977-12-06

申请人： Teryoshi Asano

发明人： Teryoshi Asano

IPC分类号： B29C57/00 ,  B29B11/08 ,  B29C45/00 ,  B29C45/26 ,  B29C49/00 ,  B29C49/06 ,  B29C49/28 ,  B29C49/48 ,  B29C49/58 ,  B29C57/08 ,  B29C65/00 ,  B29D23/03

CPC分类号： B29C45/0055 ,  B29C45/2612 ,  B29C57/08 ,  Y10S425/218

摘要： A resin pipe joint is formed having a groove on the internal surface thereof adapted for receiving a seal. The mold for forming the pipe joint includes an external split mold and an internal mold core and sleeve with parts slidable relative to one another so that the elements form a space therebetween for injecting resin therein. Subsequently, while the injected resin is still in an unhardened state, the movable parts are moved to a second position relative to one another thereby providing an annular opening surrounding the resin body formed during the resin injecting step. A pressurized fluid is jetted through a passageway towards the internal periphery of the resin body to cause said resin body to bulge into the annular space thereby creating the internal groove or exteranl bulge in the resin body.

摘要翻译： 树脂管接头形成在其内表面上具有用于接收密封件的凹槽。 用于形成管接头的模具包括外部分开模具和内部模具芯部和套筒，其具有可相对于彼此滑动的部件，使得元件在其间形成用于在其中注入树脂的空间。 随后，当注入的树脂仍然处于未硬化状态时，可移动部分相对于彼此移动到第二位置，从而在树脂注射步骤期间形成围绕树脂体的环形开口。 加压流体通过通道朝向树脂体的内周部喷射，从而使树脂体隆起进入环形空间，从而在树脂体中形成内部凹槽或外部凸起。