|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||251/62 ; 92/117A ; 251/63|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 0|
A gate valve (10) having a valve operator (40) fully contained within a valve body with means for communicating fluid under pressure to the valve operator (40) to move a gate (32) to a valve open or a valve closed position. The valve operator (40) is located within the gate chamber (30) and the gate (32) itself contains and forms part of the valve operator (40) and, thus, considerable space is conserved. In one embodiment, the means for communicating pressure fluid to the valve operator includes a manifold (16) to allow the valve body (12) to rotate as p...
A gate valve comprising, a valve body with a main bore therethrough, a gate cavity in said valve body disposed transverse to said main bore, said gate cavity having a closed end and an open end, a reciprocable gate body of essentially uniform cross section throughout its length, insertible only through and removable only through said open end, for closing said main bore in a first position and for opening said main bore in a second position, valve operator means totally within said gate cavity and within said gate body and insertible through and removabl...