Pattern sprinkler head
Реферат: ABSTRACT An improved sprinkler (20) of the type adapted to rotate and create a predefined horizontal spray pattern around it. A rotating turbine (34) drives a cylindrical nozzle (44) assembly having a plurality of nozzle openings (52) therein. The nozzle openings deliver streams of water of variable length and volume. A pattern defining disk (40) is used to continuously and proportionately expose the nozzle openings (52) to the source of pressurized water according to a preset function of the instantaneous rotational position of the nozzle opening (52) as the cylindrical member (44) turns to create the spray pattern. The nozzle openings (52) supply a relatively constant volume of water to all portions of the pattern.
Pattern sprinkler
Номер патента: AU552704B2. Автор: Edwin James Hunter. Владелец: Toro Co. Дата публикации: 1986-06-19.