|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||285/15 ; 285/14 ; 285/297 ; 285/363|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 4|
A system for sealing leaks of flanged pipe couplings comprises providing a peripheral space between faces of the flanges and in the region of that space a loose ring in facing annular grooves of the flange faces. Should a leak occur between the flanges of the coupling the loose ring allows process fluid to escape past the ring to reduce the effect of localized pressure that may otherwise distort or damage the flange faces.
In a flanged pipe coupling comprising a pair of pipes for transporting process fluid, said pipes having flanged ends coupled together face to face with a gasket therebetween, the improvement comprising the combination of: (i) an annular space defined by annular aligned grooves formed in each of the facing flanged ends, (ii) a unitary annular ring of reduced height and width dimension relative to the respective height and width dimension of the aligned annular grooves to be thereby loosely retained in the said space, the said ring being of such thickness ...