Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1994-03-15
1995-06-06
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
G05D 701
Patent
active
054213630
ABSTRACT:
An adjustable-rate flow regulator, including a split housing having an inverted-cup-shaped upper half connectable to a source of liquid to be dispensed, the upper half having a wall and a downward-facing bottom surface provided with an inlet port, and a lower half rotatably engaging the upper half, the lower half having a neck portion of reduced diameter and a recessed upper face having, at the bottom thereof, a control port leading to the consumer of the liquid. The regulator further includes an elastically deformable diaphragm seated on an annular step in the recess and defining with the bottom surface of the upper housing half a first chamber, and with the bottom of the recess in the lower housing half, a second chamber, and a tubular flow attentuator made of an elastomer, rotatably seated on, and fluid-tightly surrounding, the neck portion of the lower housing half, but non-rotatable relative to the upper housing half. The inner wall surface of the tubular flow attentuator defines in conjunction with the neck portion a system of flow-attenuating ducts for the liquid, the flow-attenuating effect of which ducts can be varied to adjust the rate of flow, through the regulator, of the liquid.
REFERENCES:
patent: 4343305 (1982-08-01), Bron
patent: 5101854 (1992-04-01), Bron
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