Fluid sprinkling – spraying – and diffusing – With fixed support for or ground installed supply means
Reexamination Certificate
2006-10-17
2006-10-17
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
With fixed support for or ground installed supply means
C239S203000, C239S204000, C239S542000, C239S071000, C239S072000, C239S073000, C239S074000
Reexamination Certificate
active
07121477
ABSTRACT:
This above ground sprinkler system for a water supply provides a main supply hose having an inlet connected to the water supply and an outlet. A main valve is disposed between bib end of the hose and the water supply. A central station including a water supply inlet is connected to the main supply hose outlet and a plurality of hose outlets, each having an associated flow control valve, supplies water to sprinklers, or similar devices at the outer end of hoses which are connected at their inner ends to the outlets. A control system for directing the water supply to the individual hose outlets is provided including a timer. A relief valve is provided for draining water from the main supply hose and a backflow preventor valve is provided for preventing back-siphonage into the water supply. A pressure actuated warning alert system is provided to indicated venting failure.
REFERENCES:
patent: 3693888 (1972-09-01), Rondas et al.
patent: 3797741 (1974-03-01), Spencer
patent: 4763837 (1988-08-01), Livneh
patent: 5123597 (1992-06-01), Bendall
patent: 5375768 (1994-12-01), Clark
patent: 5823440 (1998-10-01), Clark
patent: 5927603 (1999-07-01), McNabb
Hwu Davis
Polster Lieder Woodruff & Lucchesi L.C.
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