Fluid sprinkling – spraying – and diffusing – With fixed support for or ground installed supply means – Embedded or buried sprinkler
Patent
1987-08-14
1988-11-08
Butler, Douglas C.
Fluid sprinkling, spraying, and diffusing
With fixed support for or ground installed supply means
Embedded or buried sprinkler
239206, 239240, B05B 1510
Patent
active
047830042
ABSTRACT:
A rotary, pop-up sprinkler is provided which includes an in-ground container. A motor is reciprocably mounted in the container and includes a stator, a plate assembly mounted on the stator and a rotor rotatably received in the stator. The rotor includes a turret with a nozzle orifice. Hydraulic pressures on the rotor are balanced whereby anti-rotational drag is substantially reduced. A speed regulator is provided for maintaining a relatively constant rotational speed when the sprinkler is subjected to variances in hydraulic pressure.
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Butler Douglas C.
Forman Michael J.
Imperial Underground Sprinkler Co.
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