公开(公告)号：US3642033A

公开(公告)日：1972-02-15

申请号：US3642033D

申请日：1970-06-24

Applicant: INTERPACE CORP

Inventor： BALD ROBERT E

IPC: B28B21/60 ,  F16L9/08 ,  F16L25/00 ,  F16L21/00

CPC classification number: F16L25/0027 ,  B28B21/60 ,  F16L9/08

Abstract: A pipe section with a concrete core having joint-forming ends and devices for restraining bolts by which joints between connected pipes are closed and prevented from opening, the pipe core being encircled by a tensioned helical wire wrapping continuous lengthwise of the core pipe over and across the locations of anchors by which the bolt-restraining devices are mounted to the core pipe.

Abstract translation: 具有接头形成端的具有混凝土芯的管段和用于限制螺栓的装置，通过该螺栓将连接的管之间的接头封闭并防止其打开，管芯被缠绕在芯管的纵向上并横跨 螺栓限制装置通过该锚固件安装到芯管的位置。

公开(公告)号：US3912285A

公开(公告)日：1975-10-14

申请号：US52080274

申请日：1974-11-04

Applicant: INTERPACE CORP

Inventor： SWANSON HAROLD V ,  BALD ROBERT E

IPC: F16L21/025 ,  F16L21/05 ,  F16L58/18 ,  F16J15/10

CPC classification number: F16L21/05 ,  F16L21/025 ,  F16L58/185

Abstract: A system of protecting pipes with bell and spigot joints (having metal parts) from corrosion by fitting between the spigot and bell at least one dry distortable band of open celled material (preferably reticulated polyurethane foam) having a particulate alkaline material (preferably Portland cement) impregnated therein and engaging the band between the bell and the spigot. On wetting of the band, the alkaline material is hydrated to form a water impervious hard sealant which protects the metal after ''''metal'''' insert by protracted release of alkali.

公开(公告)号：US3917285A

公开(公告)日：1975-11-04

申请号：US41414473

申请日：1973-11-09

Applicant: INTERPACE CORP

Inventor： SWANSON HAROLD V ,  BALD ROBERT E

IPC: F16L13/11 ,  F16L21/025 ,  F16L21/05 ,  F16L58/18 ,  F16J15/10

CPC classification number: F16L21/025 ,  F16L13/113 ,  F16L21/05 ,  F16L58/185 ,  Y10S277/944 ,  Y10S285/915

Abstract: A method for joining nonmetallic pipes underground, with the pipes having mating pairs of bells and spigots, by fitting between mating spigots and bells dry distortable bands of an open celled material (preferably reticulated polyurethane foam) having a particulate water reactive material (preferably portland cement) impregnated therein and engaging each of the bands between one of the bells and its mating spigot. On wetting of the bands with water, the water reactive material therefor forms a water impervious hard sealant.

Abstract translation: 一种用于将地下非金属管连接的管道，具有配对的钟形和插口的管道，通过在配合插口和钟形之间安装具有颗粒状水反应性材料（优选波特兰水泥）的开孔（优选网状聚氨酯泡沫）的干燥可变形带 ）浸渍在其中并且使其中一个钟和其配合插口之间的每个带接合。 在用水润湿带时，其反应性水反应性材料形成不透水的硬密封剂。

公开(公告)号：US3911964A

公开(公告)日：1975-10-14

申请号：US46534174

申请日：1974-04-29

Applicant: INTERPACE CORP

Inventor： BALD ROBERT E

IPC: B28B21/60 ,  C25D11/38 ,  E04C3/26 ,  F16L9/08 ,  F16L25/00

CPC classification number: B28B21/60 ,  F16L9/08 ,  F16L25/0027 ,  Y10S138/05

Abstract: In a prestressed concrete pressure pipe it is known to have the tensioned wire wrapping around a concrete pipe core terminate short of the bars outside joint-sealing surface at the end of the pipe core, embedded pretensioned wires extending axially of the core, and a tensioned ring either within or outside of the unwrapped or bare end of the core. In the present invention end portions of the pretensioned wires are bent outwardly at a hoop towards the unwrapped surface of the core and the hoop is pretensioned by the wires. The stress in the wires is thereby utilized to impart radially inwardly directed forces emanating from the bent-out portions of the wires and from the hoop to restrain flaring and cracking of the unwrapped end of the core.

Abstract translation: 在预应力混凝土压力管中，已知具有缠绕在混凝土管芯周围的张紧线，其在管芯末端处的接头密封表面之外的杆外部终止，嵌入的预拉伸线沿着芯部轴向延伸，并且张紧 在芯的展开或裸露的内部或外部环。 在本发明中，预拉伸线的端部在箍环向外朝向芯的未展开表面弯曲，并且箍被线预拉伸。 因此，电线中的应力用于赋予从电线的弯曲部分和环箍发出的径向向内的力，以限制芯的展开端的扩口和开裂。

公开(公告)号：US3897073A

公开(公告)日：1975-07-29

申请号：US52080374

申请日：1974-11-04

Applicant: INTERPACE CORP

Inventor： SWANSON HAROLD V ,  BALD ROBERT E

IPC: F16L13/11 ,  F16L21/025 ,  F16J15/14

CPC classification number: F16L21/025 ,  F16L13/113

Abstract: A method for joining nonmetallic pipes underground, with the pipes having mating pairs of bells and spigots, by fitting between mating spigots and bells dry bands of an open celled material (preferably reticulated polyurethane foam) having a dry hydratable cement (preferably portland cement) impregnated therein and engaging each of the bands between one of the bells and its mating spigot. On wetting of the bands, the cement hydrates thereby hardening.

Abstract translation: 通过将具有干燥可水合的水泥（优选波特兰水泥）浸渍的开孔（优选网状聚氨酯泡沫）的配合插口和钟形干燥带之间的配合，将地下的非金属管连接到具有配对的钟形和塞子的管道上。 在其中并且使其中一个钟和其配合插口之间的每个带接合。 在润湿条带时，水泥水合物会硬化。

公开(公告)号：US3909010A

公开(公告)日：1975-09-30

申请号：US35996773

申请日：1973-05-14

Applicant: INTERPACE CORP

Inventor： SWANSON HAROLD V ,  BALD ROBERT E

IPC: F16L21/025 ,  F16L21/05 ,  F16L58/18 ,  F16J15/10

CPC classification number: F16L21/025 ,  F16L21/05 ,  F16L58/185 ,  Y10S277/919 ,  Y10S277/944

Abstract: A method of protecting pipes with bell and spigot joints (having metal parts) from corrosion by fitting between the spigot and bell at least one dry band of open celled material (preferably reticulated polyurethane foam) having a particulate alkaline material (preferably Portland cement) impregnated therein and engaging the band between the bell and the spigot. On wetting of the band, the alkaline material is hydrated to protect the metal.

Abstract translation: 一种保护具有钟形和插口接头（具有金属部件）的管道的方法，其通过在插口和钟罩之间安装至少一个具有浸渍的碱性物质（优选波特兰水泥）的开孔的材料（优选网状聚氨酯泡沫）的干燥带 在其中并且接合在钟和插口之间的带。 在润湿带时，碱性物质被水合以保护金属。

公开(公告)号：US3904213A

公开(公告)日：1975-09-09

申请号：US52632074

申请日：1974-11-22

Applicant: INTERPACE CORP

Inventor： SWANSON HAROLD V ,  BALD ROBERT E

IPC: F16L21/025 ,  F16L21/05 ,  F16L58/18 ,  F16J15/38

CPC classification number: F16L58/185 ,  F16L21/025 ,  F16L21/05

Abstract: A system of protecting pipes with bell and spigot joints (having metal parts) from corrosion be fitting between the spigot and bell at least one dry band of open celled material (preferably reticulated polyurethane foam) having a hydratable cement (preferably Portland cement) impregnated therein and engaging the band between the bell and the spigot. On wetting of the band, the cement is hydrated to form a water impervious hard sealant in the joint which releases alkalinity to protect the metal.

Abstract translation: 保护具有钟形和插口接头（具有金属部件）的管道免受腐蚀的管道的系统在插口和钟罩之间安装至少一个干燥带的开孔（优选网状聚氨酯泡沫），其具有浸渍在其中的可水合水泥（优选波特兰水泥） 并且将钟带和插座之间的带接合。 在带的润湿时，水泥被水合以在接头中形成不透水的硬密封剂，其释放碱度以保护金属。