Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Reexamination Certificate
2006-04-18
2006-04-18
Bastianelli, John (Department: 3751)
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
C251S029000, C251S030020, C251S040000
Reexamination Certificate
active
07028975
ABSTRACT:
A flush valve structure to control flush water through a pressure difference mainly includes a case, a solenoid assembly, an upper intermediate board, a lower intermediate board and a main water ball. The upper intermediate board has a small water pressure release hole. The lower intermediate board has a holding trough mating a medium water valve. The solenoid assembly can open the small water pressure release hole to generate a pressure difference to actuate the medium water valve to form a greater pressure difference so that the main water ball is lifted rapidly to fully open the a main water discharge opening to flush maximum amount of water in a shortest period at the flushing start time.
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Hsu Chi-Chin
Huang Tsan-Chang
Lee Kuo-Chou
Bastianelli John
Birch & Stewart Kolasch & Birch, LLP
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