A leak stopping sprinkler head includes a hollow body that has an upper portion and a lower portion fluidly connected to a valve body. The upper portion has a spraying nozzle and a first internal diameter. The lower portion has a second, larger internal diameter. The valve body includes a valve seat
A leak stopping sprinkler head includes a hollow body that has an upper portion and a lower portion fluidly connected to a valve body. The upper portion has a spraying nozzle and a first internal diameter. The lower portion has a second, larger internal diameter. The valve body includes a valve seat fluidly connected to the lower portion and a water supply. A hollow spheroid is larger than the first diameter, smaller than the second diameter and has perforations for passage of water. A rigid rod connects the spheroid and a sealing disk for the valve seat. The rod is sized to hold the disk away from the valve seat when the hollow body is intact. Destruction of the hollow body permits the spheroid to move out of the hollow body, pulling the rod and the disk upwardly, causing the disk to seal the valve, stopping the flow of water.
대표청구항▼
1. A leak stopping sprinkler head, comprising: a hollow cylindrical casing, said casing having a top surface, a central aperture penetrating said top surface, a surrounding vertical wall, a threaded attachment at a lower end of said vertical wall, said threaded attachment connecting said casing to a
1. A leak stopping sprinkler head, comprising: a hollow cylindrical casing, said casing having a top surface, a central aperture penetrating said top surface, a surrounding vertical wall, a threaded attachment at a lower end of said vertical wall, said threaded attachment connecting said casing to a water supply line;a sprinkler pipe, said pipe having an upper end, a lower end and having a spray nozzle disposed at said upper end and being sized to fit slidably through said central aperture;a sealing flange, said flange being disposed about an outer circumference of said sprinkler pipe at a height to limit upward travel of said sprinkler pipe to a first predetermined distance through said central aperture as water pressure from said water supply line urges said sprinkler pipe upwards, said flange bearing against an underside of said top surface of said casing;a self-closing spring operated valve, said valve being held in an open position by said sprinkler pipe disposed therethrough, said valve controlling flow of water from said water supply line into said casing and said sprinkler pipe; andwherein said valve moves to a closed position if said sprinkler pipe moves upwardly beyond said first predetermined distance due to any of breakage and removal of either of said casing and said sprinkler pipe, thereby terminating said flow of water from said water supply line;a sphere, said sphere being pivotally mounted in a spherical seat, said seat being in fluid connection with said water supply line and said casing;said sphere having a passage therethrough, said passage being sized to fit slidably about said sprinkler pipe;an elastic member, said member urging said sphere to rotate to a closing position in said spherical seat, thereby terminating said flow of water from said water supply line; andwherein said sprinkler pipe is disposed through said passage upon mounting of said sprinkler head, thereby holding said valve in an open position, said valve moving to said closing position upon removal of said sprinkler pipe from said passage due to either of breakage and removal of either of said casing and said sprinkler pipe.
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이 특허에 인용된 특허 (19)
Gayle Harold R. (Wilmington DE) Wagner Walter D. (Chadds Ford PA), Break-away safety valve.
Moore Glenn E. (Cincinnati OH) Anderson Paul B. (Cincinnati OH) Wood Chester W. (Milford OH) Blasch Lawrence R. (Cincinnati OH), Emergency shut-off valves.
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