Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Patent
1980-11-21
1983-11-08
Love, John J.
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
B05B 1500
Patent
active
044137869
ABSTRACT:
An emitter unit comprises a housing having defined therein an inlet and an outlet, a substantially planar inner wall portion of the unit having defined therein a groove, a recessed cavity communicating with one end of the groove and being of extended dimensions as compared with the width of the groove, a second and opposite end of the groove communicating with the inlet, an outlet bore in a base portion of the cavity communicating with the outlet and having a rim area substantially less than that of the cavity and at least one subsidiary recess, a resiliently flexible membrane juxtaposed with respect to the inner wall portion with one face thereof defining with the groove a flow restricting flowpath, with the cavity an outlet control chamber, and with the or each recess, at least one retaining cell, coupling device for coupling the or each cell with reduced pressure zones; the arrangement being such that with the inlet coupled to a water supply the membrane is exposed to the supply pressure the membrane is displaceable towards and away from the base portion of the cavity in accordance with pressure variations so as to stabilize the output rate of the emitter unit with respect to the variations and a pressure differential is set up across the membrane in the vicinity of the cell(s) and chamber so as to ensure that the membrane is maintained in contact with said inner wall portion in the region of the groove.
REFERENCES:
patent: 4209133 (1980-06-01), Mehoudar
patent: 4210287 (1980-07-01), Mehoudar
patent: 4215822 (1980-08-01), Mehoudar
patent: 4307841 (1981-12-01), Mehoudar
Church Gene A.
Hydro-Plan Engineering Ltd.
Love John J.
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