|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/316 ; 137/327 ; 137/5157 ; 137/5278|
|발명자 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 4|
A swing check valve for use between flanges wherein the valve seat and cage for the valve disc extend from the upstream to the downstream ends of the valve body. Cooperating shoulders are provided in the valve body and the member forming the seat and cage to prevent upstream movement of these members in the valve body, and downstream movement is prevented by plate-like members fitting in recesses in the cage portion and the valve body bore.
A swing check valve comprising: a body having planar upstream and downstream ends and a bore therethrough interconnecting the upstream and downstream ends, said bore having a larger diameter portion and a smaller diameter portion providing an annular shoulder in the bore facing downstream, and said bore having an annular groove therein downstream from said shoulder a valve seat in the bore having an annular shoulder thereon mating with the annular shoulder in the body; a disc sized to mate with the seat member; a ring shaped cage in the bore downstream f...