Fluid sprinkling – spraying – and diffusing – With fixed support for or ground installed supply means
Patent
1976-03-08
1977-04-19
Love, John J.
Fluid sprinkling, spraying, and diffusing
With fixed support for or ground installed supply means
239230, 239588, 285239, B05B 302
Patent
active
040183866
ABSTRACT:
A resilient sprinkler riser is described for mounting a pulsating type sprinkler head wherein a nozzle is utilized to direct a spray jet of water in a radial direction from a vertical axis of rotation while a pivoted deflector member operates to rotate the nozzle about the vertical axis. The riser includes a flexible tube that is coaxially mounted within an elongated closed helical tension spring. The spring is fastened at its lower end relative to the tube while its upper end is free to slide coaxially over the tube length. The spring is pretensioned to hold the pipe in an upright condition under the reaction forces exerted by a jet of water exiting through the sprinkler nozzle. However, the spring tension is not sufficient to hold the tube in an upright condition when excessive external lateral forces are applied. When this happens, the riser will deflect in the direction of the force. When the force is removed, the riser will spring back to a normal upright condition.
REFERENCES:
patent: 555147 (1896-02-01), Burck
patent: 1727962 (1929-09-01), Buskard
patent: 2061987 (1936-11-01), Sorensen
patent: 3478967 (1969-11-01), Horton et al.
patent: 3587972 (1971-06-01), Weeth
patent: 3759445 (1973-09-01), King
Love John J.
Michener Associates, Inc.
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