Drip-irrigation emitter for mounting on a liquid supply-conduit

Details Drip-irrigation emitter for mounting on a liquid supply-conduit Drip-irrigation emitter for mounting on a liquid supply-conduit

1982-02-18

1984-01-10

Love, John J.

Fluid sprinkling, spraying, and diffusing

With nozzle or flow line attached penetrating means

138 45, 239542, B05B 1506

Patent

active

044249365

ABSTRACT:
The invention concerns a drip irrigation emitter for mounting on a liquid supply conduit perforated with a suitable orifice.
The emitter is of the type comprising a body (1) with an inside cavity and an elastic membrane (2) dividing the body inside chamber into two compartments, one an upstream compartment (5) and the other a downstream compartment (7) with intake and discharge apertures (6) and (8), respectively. The emitter of the invention is characterized in that the downstream compartment (7) is bounded by a converging, in particular a frustrom-of-cone wall (9) comprising at least one flow channel (10) extended at the membrane by a duct (11) issuing into the upstream compartment (5). Regulation is achieved by covering a variable length of the channel (10).

REFERENCES:
patent: 3409050 (1968-11-01), Weese
patent: 3474831 (1969-10-01), Noakes
patent: 3630455 (1971-12-01), Parkison
patent: 4058257 (1977-11-01), Spencer
patent: 4369923 (1983-01-01), Bron
patent: 4382549 (1983-05-01), Christy et al.

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