Patent ID: 7814924
Filing Date: 2010-10-19
Classification: F16K,Y10T

Abstract:
1. A valve arrangement comprising: a safety valve for location in supply plumbing for supplying a fluid medium to a point of use structure; a mechanical actuator to actuate said safety valve, said mechanical actuator being mechanically connected to said safety valve and located remotely from said safety valve, said mechanical actuator comprising a trigger housing; wherein said safety valve comprises a valve housing, a valve member movable in said valve housing between an open position and a closed position, and a biasing member biasing said valve member toward said closed position; and a valve release member that extends between said valve housing and said trigger housing; wherein said valve release member is movable between a valve open position, in which said valve release member holds said valve member in said open position against the force of said biasing member, and a valve closed position; wherein said mechanical actuator further comprises a mechanism located in said trigger housing that is operable to hold said valve release member in said valve open position thereof against the force of said biasing member and that is operable to release said valve release member from being held to allow the force of said biasing member to move said valve member to said closed position; wherein said mechanism of said mechanical actuator comprises a cable holder operable to hold said flexible cable in said valve open position and a cable release mechanism operable to release said cable holder from holding said flexible cable in the valve open position to allow said valve member to move to said closed position; wherein said cable holder comprises a movable member that is held by a detent to hold said flexible cable in the valve open position and said cable release mechanism is operable to release said movable member from being held by said detent; wherein said detent comprises a detent member held in place by a lever to hold said movable member and said cable release mechanism comprises a releasable latch operable to hold said lever in place to hold said movable member and to release said lever; and wherein said detent member comprises a locking lever that engages with a locking surface of said trigger housing of said mechanical actuator.