|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/625.66 ; 137/625.67 ; 251/324 ; 251/900|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 1|
A control valve for bleeding fluid from a valve actuator has a slide valve with a piston on one end thereof mounted for movement within a uniform diameter piston chamber. The piston is movable longitudinally within the piston chamber between a seated position at an outer end of the piston chamber and an unseated set position adjacent the opposite inner end of the chamber. An O-ring is positioned in an annular groove in the inner wall defining the piston chamber adjacent the inner end of the piston chamber and contacts the outer periphery of the piston in...