PIPE JOINT GASKET AND METHOD OF MAKING SAME
    3.
    发明申请

    公开(公告)号:US20170114933A1

    公开(公告)日:2017-04-27

    申请号:US13896692

    申请日:2013-05-17

    IPC分类号: F16L21/03

    CPC分类号: F16L21/03 F16L37/0845

    摘要: A gasket for preventing separation of interconnected pipes including a compressible body having a plurality of metal segments partially embedded therein. Each of the metal segments includes an inner surface having at least one tooth configured for engaging a spigot end of a pipe and an outer surface having an arm with a substantially flat portion arranged adjacent to a forward section of a retainer groove of the gasket, the substantially flat portion being configured for displacing the segment radially and axially upon insertion of the spigot end into a bell end of the other pipe thereby decreasing the spigot insertion force required to seat the spigot end within the bell end and the gasket.

    Centroidally twistable compression ring for pipe joints
    4.
    发明授权
    Centroidally twistable compression ring for pipe joints 有权
    用于管接头的可旋转扭转压缩环

    公开(公告)号:US07137653B2

    公开(公告)日:2006-11-21

    申请号:US10950263

    申请日:2004-09-24

    IPC分类号: F16L37/00

    CPC分类号: F16L37/088

    摘要: A locking ring designed to work in a self restraining pipe joint. This locking ring is designed (which may include attention to a combination of shape and material properties) to twist when exposed to a concentrated load and thereby distribute this load across broader area of the pipe joint to increase the thrust restraining capabilities of the joint

    摘要翻译: 一个锁定环,设计用于在自限制管接头中工作。 该锁定环被设计(其可能包括注意形状和材料特性的组合)以在暴露于集中载荷时扭曲,从而将该负载分布在管接头的较宽区域上,以增加接头的推力限制能力

    Highly ductile reduced imperfection weld for ductile iron and method for producing same
    6.
    发明授权
    Highly ductile reduced imperfection weld for ductile iron and method for producing same 有权
    球墨铸铁的高韧性减少缺陷焊接及其制造方法

    公开(公告)号:US06730876B2

    公开(公告)日:2004-05-04

    申请号:US09866258

    申请日:2001-05-29

    IPC分类号: B23K3502

    摘要: The art has experienced difficulty obtaining “sound” welds with high-nickel welds above the second pass. Particular problems are tension anomalies and sub-optimal interweld pass fusion at higher order passes of the weld wire, along with undesirably high heat levels transferred to the workpiece. The inventors have discovered that ductile iron-to-ductile iron welds can be reliably formed at mission-critical junctures by compensating for the brittle nature of the heat affected zone through enhancing ductility of the weld itself. The present invention provides in continuing part for a highly durable weld without soundness problems such as tension anomalies, multilayer fusion imperfections, or pinholes; and a method of forming such a weld. The weld is created using high nickel weld wire (filler metal or consumable electrode, or both) welded in a pure inert gas (or mixture of pure inert gasses and even reducing gasses). Additions of weld metal alloys, flux coring, and deoxidizing coatings are not required. The work pieces do not require pre- or post-heat treatment to minimize the effects of the HAZ. Additional inventive features are described more fully below.

    摘要翻译: 在第二次通过以上的高镍焊缝获得“声音”焊缝方面遇到困难。 特殊的问题是焊丝高阶通过时的张力异常和次优的焊缝间熔合,以及传递到工件的不希望的高的热量。 本发明人已经发现,通过增强焊接本身的延展性,可以通过补偿热影响区的脆性来可靠地形成球状铁 - 球墨铸铁焊缝。 本发明连续地提供了耐久性很好的焊缝,没有诸如张力异常,多层聚合缺陷或针孔的健全问题; 以及形成这种焊接的方法。 使用焊接在纯惰性气体(或纯惰性气体甚至还原气体的混合物)中的高镍焊丝(填充金属或可消耗电极,或两者)焊接。 不需要添加焊接金属合金,焊剂取芯和脱氧涂层。 工件不需要进行前后热处理,以尽量减少HAZ的影响。 下面将更充分地描述附加的发明特征。

    Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets
    7.
    发明授权
    Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets 有权
    机械管接头,垫圈,以及用于限制机械管接头孔插座中管接头的方法

    公开(公告)号:US07207606B2

    公开(公告)日:2007-04-24

    申请号:US10827159

    申请日:2004-04-19

    IPC分类号: F16L19/06 F16L19/08

    摘要: A mechanical pipe joint, restraining gasket, and method for restraining pipe spigots within adjacent bell sockets. The restraining gasket is composed of two axially-separate components: a sealing portion and a restraining portion made of a plurality of arcuate locking members. The restraining gasket and a gland surround an outer surface of the pipe spigot. The mechanical pipe joint is formed as the pipe spigot is inserted into the bell socket and the gland is axially attached to the bell socket so that the restraining gasket is held between: the gland, an inner surface of the bell socket, and the outer surface of the pipe spigot, so as to provide a fluid seal in the joint and urge the locking members into contact with the outer surface of the pipe spigot, axially restraining the pipe spigot within the bell socket.

    摘要翻译: 机械管接头,限制垫圈,以及在相邻的喇叭口内限制管接头的方法。 限制垫片由两个轴向分离的部件组成:密封部分和由多个弓形锁定部件制成的约束部分。 限制垫圈和密封套围绕着管接头的外表面。 机械管接头形成为管插头插入钟形插座,并且压盖轴向地安装在钟形插座上,使得限制垫圈保持在:压盖,喇叭口的内表面和外表面之间 以在接头中提供流体密封,并且促使锁定构件与管接头的外表面接触,从而轴向地限制钟罩内的管接头。

    Pipe joint gasket and method of making same

    公开(公告)号:US10088082B2

    公开(公告)日:2018-10-02

    申请号:US13896692

    申请日:2013-05-17

    IPC分类号: F16L21/03

    摘要: A gasket for preventing separation of interconnected pipes including a compressible body having a plurality of metal segments partially embedded therein. Each of the metal segments includes an inner surface having at least one tooth configured for engaging a spigot end of a pipe and an outer surface having an arm with a substantially flat portion arranged adjacent to a forward section of a retainer groove of the gasket, the substantially flat portion being configured for displacing the segment radially and axially upon insertion of the spigot end into a bell end of the other pipe thereby decreasing the spigot insertion force required to seat the spigot end within the bell end and the gasket.