Patent ID: 6685162
Filing Date: 2004-02-03
Classification: F16L

Abstract:
A method of installing a valve between an inlet and an outlet pipe comprising:providing a valve having a housing defining a first portion of a passage through said valve, said valve including a first extendable member having a first end and a second end, said first end comprising a first port of said valve at a first end of said passage through said valve and said second end located within said housing and in communication with said first portion of said passage through said valve, said second end of said first extendable member movable within said housing, said first extendable member defining a second portion of said passage through said valve, said second portion of said passage defined by said first extendable member between said first port to said first portion of said passage through said housing, said valve including a second port at an opposing end of said passage through said valve and said first port, the length of said passage through said valve being adjustable in length by moving said first extendable member relative to said housing, said valve including a control configured to selectively open and close said passage through said valve from said first port to said second port, said first extendable member permanently coupled to said housing; moving said first end of said first extendable member within said housing whereby said position of said second port of said valve is changed; and connecting said first port and second port of said valve to said inlet and outlet pipes, respectively including providing said valve with a second extendable member having a first end and a second end, said first end comprising said second port of said valve and said second end located within said housing and in communication with said second portion of said passage through said valve, said second end of said second extendable member movable within said housing, said second extendable member defining a third portion of said passage through said valve, said third portion of said passage defined by said second extendable member between said second port and said first portion of said passage through said housing and said second extendable member permanently coupled to said housing, and wherein said moving step comprises moving either or both of said first and second extendable members with respect to said housing whereby said positions of said first and second ports are changed.