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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/62565; 251/050; 251/052|
|발명자 / 주소||
|출원인 / 주소||
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 8|
A valve of the present invention has housing and a piston member. The piston member is housed in the housing so that it moves between first and positions. The housing includes a piston chamber for guiding the piston member between first and second positions while keeping a sealing engagement with the piston chamber. First and second chambers are positioned adjacent to opposite ends of the piston member so that volumes of first and second chambers are changed depending upon a movement of the piston member. First and second ports are connected when the pis...
1. A valve, comprising:a housing; and a piston member, said piston member being mounted in said housing so that said piston member moves between first and second positions; wherein said housing includes: a piston chamber for guiding said piston member between said first and second positions while keeping a sealing engagement with said piston chamber; first and second chambers adjacent to opposite ends of said piston member, volumes of said first and second chambers being changed depending upon a movement of said piston member; first to third ports, said ...