Fluid handling – Line condition change responsive valves – Direct response valves
Reexamination Certificate
2005-08-02
2005-08-02
Rivell, John (Department: 3753)
Fluid handling
Line condition change responsive valves
Direct response valves
C137S454200, C137S515500, C251S065000
Reexamination Certificate
active
06923206
ABSTRACT:
A number of improved excess flow valves are disclosed wherein pressure drop is optimized through the device to maximize efficiency while minimizing shut-off flow rates. Flow restrictions are minimized throughout the valve structure and maximized across a valve closure plate, eliminating flow restriction variations caused by orientation of the valve components. A magnet having radially opposing poles optimizes the magnet's attractive force relationship with the valve plate.
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Glover Donald S.
Koeroghlian Mark
Michael Klein
Scanlon James
Brass Craft Manufacturing Company
Carlson & Gaskey & Olds
Rivell John
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