|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/5155 ; 137/5157 ; 137/5278|
|발명자 / 주소|
|인용정보||피인용 횟수 : 0 인용 특허 : 6|
A swing check valve where the opposite end portions of the hinge pin of the disc are held in hinge pin recesses by an annular wall in the valve body. The wall in the valve body is sufficiently sized that the valve disc can swing through the wall through an arc of substantially 90°between in its open and closed positions. The wall may be formed as a part of the valve body or as a separate retainer ring secured in the valve.
A swing check valve, comprising: a body having a substantially planar, flanged end; a tubular fitting having a substantially planar, flanged end mating with said planar end of the body; a disc supported in the fitting for swinging movement into open and closed positions, the disc having a substantially flat, round main body portion and a hinge pin formed integrally therewith extending in a plane at a right angle to the longitudinal axis of the main body portion of the disc, the disc also having a transition between the main body portion of the disc and t...