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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/312 ; 137/554 ; 137/6275 ; 137/63022|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 4 인용 특허 : 13|
A valve assembly for use in the passage of fluid in a conduit system wherein the valve assembly possesses an actuator part and a valve part for controlling the flow of fluid therein while simultaneously providing means for purging any residual fluid trapped within the valve assembly when the valve is in its closed position. The valve part of the valve assembly is made up of a cage means housing two flow-to-close valve members which are independently spring biased in the closed position. Placed within this cage member are venting means which provide a pas...
A unitary valve assembly for use in the passage sage of fluids which may include volatile, flammable or poisonous gases, said valve assembly comprising: a valve structure having an inlet duct and an outlet duct which controls the flow of fluid therein an actuator structure connected with said valve structure for generating motion to said valve structure, said valve structure including cage means interposed between said inlet and said outlet ducts, said cage having first and second annular shoulder members, vent means operative within said cage means for ...