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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||156/165 ; 29/525 ; 156/212 ; 156/294|
|발명자 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 1|
An improved press-fit joint between a pipe, such as a length of pipe forming part of a section of pipeline in an irrigation system, and a pipe coupler used in connecting the ends of adjacent pipeline sections in the system. In forming the joint, a sheathing element of thin gauge material is mounted on an end portion of the pipe. The sheathing element includes a skirt portion which bounds the inner circumference of the pipe, allowing a tubular portion of the coupler to be pressed into the end of the pipe without experiencing the galling which normally occ...
A method of making a rigid press-fit joint between a pipe and a coupler for the pipe where the coupler has a tubular portion of greater outer diameter than the inner diameter of the pipe comprising providing a sheathing element having an annular portion sized to fit closely within an end of said pipe, said annular portion including means defining openings therein, said sheathing element further including a radially outwardly projecting rim portion joined to said annular portion and a turned over outer lip portion joined to said rim portion, mounting said...