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：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。