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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||285/373 ; 285/903|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 5|
A clamp-type corrugated plastic pipe coupling of the invention, which is clamped with a split mold having flanges, includes an outer coupling member having a corrugation at least on its inner surface and a packing member arranged inside the outer coupling member. The packing member has an inner surface with a corrugation substantially identical to the corrugations on outer surfaces of corruated plastic pipes to be connected. The packing member is made of a material having a rubber hardness of not more than 25 and a compression set of not more than 60%. T...
A clamp-type corrugated plastic pipe coupling, comprising: split mold means adapted to surround outer surfaces of corrugated plastic pipes to be connected; an outer coupling member adapted to be received within said split mold means and having a corrugation at least on its inner surface; and a packing member arranged inside said outer coupling member, wherein the packing member is urged against the outer surfaces of the pipes to be connected when said outer coupling member is clamped from the outside by said split mold means, the corrugation on the inner...