Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Reexamination Certificate
2006-09-18
2010-06-15
Nguyen, Dinh Q (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
C239S547000, C239S533100, C239S533130
Reexamination Certificate
active
07735758
ABSTRACT:
A drip irrigation hose includes a tube for conducting pressurized water through its interior and formed with a plurality of outlets for emitting water at longitudinally-spaced locations along the length of the tube; and a plurality of flow-control elements fixed with respect to the inner surface of the tube at longitudinally-spaced locations thereof to define, with the inner surface, a plurality of labyrinths each having an inlet communicating with the interior of the tube and an outlet communicating with a tube outlet for emitting water there from at a slow rate. The labyrinth includes a bottom wall constructed to produce, adjacent to the bottom wall, a significant laminar flow of water in which the laminar flow decreases, and thereby turbulent flow increases, with an increase in the water pressure within the tube to thereby provide pressure-compensation for the water flow through the respective tube outlet.
REFERENCES:
patent: 4430020 (1984-02-01), Robbins
patent: 5207386 (1993-05-01), Mehoudar
patent: 5333793 (1994-08-01), DeFrank
patent: 5615838 (1997-04-01), Eckstein et al.
patent: 5636797 (1997-06-01), Cohen
patent: 5829685 (1998-11-01), Cohen
patent: 6371390 (2002-04-01), Cohen
patent: 6382530 (2002-05-01), Perkins
patent: 6736337 (2004-05-01), Vildibill et al.
patent: 6817548 (2004-11-01), Krauth
patent: 2003/0150940 (2003-08-01), Vildibill et al.
patent: WO/98/10625 (1998-03-01), None
patent: WO/98/10635 (1998-03-01), None
patent: WO 2008/035335 (2008-03-01), None
International Search Report Dated Jun. 4, 2008 From the International Searching Authority Re.: Application No. PCT/IL07/01146.
Written Opinion Dated Jun. 4, 2008 From the International Searching Authority Re.: Application No. PCT/IL07/01146.
International Preliminary Report on Patentability Dated Apr. 2, 2009 From the International Bureau of WIPO Re.: Application No. PCT/IL2007/001146.
LandOfFree
Drip irrigation hoses of the labyrinth type and flow-control... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drip irrigation hoses of the labyrinth type and flow-control..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drip irrigation hoses of the labyrinth type and flow-control... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4188874