Valve Having Diameter-Reducible Joint Part, Joint for Diameter Reduction, and Plumbing System Using These
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United States of America Patent
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Issued Date -
Feb 5, 2009
app pub date -
Jul 31, 2006
filing date -
Jul 29, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A valve is provided without processing junction sites thereof, in which pipes can infallibly be joined with ease only through the reduction in diameter of a housing to be fastened and, at the same time, the valve has appropriate flexibility relative to the joined pipes and is capable of absorb vibration etc., thereby exhibiting excellent durability. Furthermore, the valve has a diameter-reducible joint part, enables joining the pipes to the opposite sides thereof separately individually and can always maintain high sealability even when the pipes are joined thereto or detached therefrom, thus excelling in cost. The valve having a diameter-reducible joint 18 includes a diameter-reducible housing 2 having a flow path therein and accommodating a seal sleeve 3 formed of rubber, a valve mechanism 4 provided with a valve element 11 and built in the housing 2 to enable switching of the flow path and controlling of a flow rate, and a junction pipe P having a junction end joined with the seal sleeve 3 to the diameter-contracted joint in a tightly sealed fashion through diameter reduction of the housing 2.
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