Patent ID: 6920895
Filing Date: 2005-07-26
Classification: F16K,G05D,Y10T

Abstract:
1. A surge suppressor/shut-off valve apparatus, comprising: a valve body; said valve body having an inlet port and an outlet port; flow restricting means associated with said valve body for reducing the flow rate of a fluidic material between said inlet and outlet ports from a first, nominal flow rate, to a second, reduce flow rate, when a pressure differential between said inlet and outlet ports is exceeded; wherein said flow restricting means comprises a poppet member slidably disposed within said valve body, a valve seat positioned within said valve body, and a biasing member positioned within said valve body; wherein movement of said poppet member within said valve body will reduce the flow rate of a fluidic material between said inlet and outlet ports from said first, nominal flow rate, to said second, reduced flow rate, when a pressure differential between said inlet and outlet ports is exceeded, and wherein said biasing normally member urges said poppet member away from said valve seat for flow at said first flow rate; wherein said poppet member comprises a base portion slidably engaging said valve body, a shaft or neck portion centrally disposed on said base, and a valve seat interface portion said shaft adapted to interface with said valve seat; wherein openings are defined on said base portion; wherein said openings on said base portion are chamfered; and wherein said first flow rate is automatically restored when the fluidic pressure at said outlet port is increased until said pressure differential is no longer exceeded.