Sprinkler device

Fluid sprinkling – spraying – and diffusing – Distributor continuously moves relative to support during... – With impact motive means

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Details

239241, 239259, 239DIG1, B05B 304

Patent

active

049712560

ABSTRACT:
A rotary sprinkler device having a fluid inlet adapted to be secured to a water line, a nozzle head defining a plurality of differently configured or sized outlet orifices therein, a body member disposed between the fluid inlet and the nozzle head, a bearing spindle at least partially disposed within the body member and selectively communicating the fluid inlet with one of the outlet orifices in the nozzle head for obtaining the desired water distribution therefrom. The bearing spindle is mounted for relative rotation between the bearing spindle and the body member. A ball drive is disposed within the body member. The ball drive is operatively connected to the nozzle head and responsive to fluid flow through the bearing spindle to the nozzle head for rotating the nozzle head. A swirl plate is disposed between the fluid inlet and the ball drive and defines a plurality of angularly disposed openings therein for causing water passing therethrough to swirl about the ball drive and efficiently drive the ball therein in a tangential horizontal direction about and against the drive, causing incremental rotation of the nozzle head with minimal pressure drop. A plurality of axially aligned and abutting sealing washers are disposed about a portion of the bearing spindle and extend axially between a second portion of the bearing spindle and a portion of the body member, and a wave spring for preloading the sealing washers in compression is disposed between the second portion of the bearing spindle and said portion of the body member to maintain a continuous seal therebetween.

REFERENCES:
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patent: 3669353 (1972-06-01), Hanson et al.
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patent: 3957205 (1976-05-01), Costa
patent: 4103828 (1978-08-01), Ridgway
patent: 4474328 (1984-10-01), Hale
patent: 4687139 (1987-08-01), Lockwood
patent: 4819875 (1989-04-01), Beal

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