Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Reexamination Certificate
2005-11-01
2005-11-01
Scherbel, David A. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
C239S011000, C239S548000, C239S553300, C137S078200
Reexamination Certificate
active
06959882
ABSTRACT:
When the dripline used for watering soil, low pressure air in the range 10–100 inch water column is flowed through a buried dripline, in alternation of with flow of water at 5 psig or more. The flow of air provides oxygen to the soil, and more widely and evenly disperses the water within the soil, and impedes or counters saturation. A buried dripline runs in a U-shape path, so that low pressure and flow of air from emitters near the dripline terminal end is compensated for by higher pressure and flow of air near the inlet end. Flow of low pressure air or other gas, which pushes water from the dripline and surrounding soil, enables use of driplines in soil subject to freezing.
REFERENCES:
patent: 3917174 (1975-11-01), Hildebrandt et al.
patent: 5628462 (1997-05-01), Miller
patent: 5839659 (1998-11-01), Murray
patent: 6018909 (2000-02-01), Potts
patent: 6173526 (2001-01-01), Mazzei
patent: 6736337 (2004-05-01), Vildibill et al.
“Perc-Rite Drip Disposal Systems” 4 Page Brochure American Manufacturing Co. Undated.
“Aqua-Traxx Premium Drip Tape” 2 Page Brochure Toro AC Products Co. Undated.
“Pilot Study On The Impact Of Air Insected Into Water Delivered Through Subsurface Drip Irrigation Tape” p. 1-9, 19, 21, 22 California Agricultural Technology Institute, Feb. 2001.
Blake Michael A.
Hogan James S.
Nessler Charles G.
Scherbel David A.
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