Trickle irrigator

Details Trickle irrigator Trickle irrigator

1975-06-20

1976-05-04

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

137218, 137521, 1375253, 138 43, 239542, 239570, B05B 132, B05B 1502, F16K 1514

Patent

active

039542238

ABSTRACT:
A trickle-flow irrigation valve of the type which is installable through the wall of a garden hose, and having a pressure chamber with an inlet passage from the hose and an outlet passage through a wall of the chamber in which are also formed a shallow channel and an outlet groove in the channel, communicating with the outlet passage. A flat, resilient valve element covers the outlet passage and a substantial portion of the groove and channel. The resilient valve element allows relatively high-volume, flushing flow when water is first received in the chamber, but deforms to the shape of the channel as supply pressure builds up, thus restricting flow to the outlet groove and providing a substantial pressure drop. A high supply pressure will force the valve element into the groove itself, to some degree, and a pressure regulating effect is thereby obtained. A loose-fitting outlet cover, including an attached pin engageable in the outlet passage, allows manual flushing by lifting the valve element away from the channel as the cover and pin are depressed.

REFERENCES:
patent: 2554790 (1951-05-01), Miller
patent: 3797754 (1974-03-01), Spencer
patent: 3807430 (1974-04-01), Keller
patent: 3873031 (1975-03-01), Reeder et al.
patent: 3908694 (1975-09-01), Spears

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