Fluid sprinkling – spraying – and diffusing – Distributor continuously moves relative to support during... – With impact motive means
Patent
1978-03-23
1979-11-06
Saifer, Robert W.
Fluid sprinkling, spraying, and diffusing
Distributor continuously moves relative to support during...
With impact motive means
B05B 302
Patent
active
041733061
ABSTRACT:
A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface. The sprinkler responds to the passage of water through the nozzle by rising from a lower first position retracted in the housing to a raised second position out of the housing. A top cover sized to mate with the mouth of the housing is attached to the top plate of the cage such that when the sprinkler is in the first position the top cover mates with the mouth of the housing to enclose the sprinkler therein.
REFERENCES:
patent: 3009650 (1961-11-01), Alvarez
patent: 3080123 (1963-03-01), Erns
patent: 3088677 (1963-05-01), Coffey et al.
patent: 3350015 (1967-10-01), Friedmann et al.
patent: 4002295 (1977-01-01), Drori
Saifer Robert W.
Telsco Industries, Inc.
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