|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||251/120 ; 251/333 ; 137/62533|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 14 인용 특허 : 0|
The present invention relates to a valve including a valve member co-operating with a seat provided with a crenellated portion disposed around the portion of the seat on which the valve member rests, said crenellated portion being constituted by teeth separated by gaps, the inside walls of the teeth being portions of a vertical axis cylinder, the width l of the gaps being less than the width b of the inside walls of the teeth, wherein the end wall of the valve member facing the crenellated portion when the valve member is in its closed position is convex...
A valve comprising a movable valve member engageable with a seat, a crenellated portion disposed around a portion of said seat upon which said valve member rests, said crenellated portion being constituted by teeth separated by circumferential gaps, said teeth having inside walls constituting portions of a vertical axis cylinder, said gaps having a width l which is less than a width b of the inside walls of the teeth, the improvement wherein said valve member includes an end wall facing the crenellated portion when the valve member in its closed position...