Centre pivot irrigators

Details Centre pivot irrigators Centre pivot irrigators

2005-04-14

2009-06-16

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Mobile distributor

Irrigation device

C239S730000, C239S736000

Reexamination Certificate

active

07546963

ABSTRACT:
Connecting apparatus for use with centre pivot irrigation equipment that includes a boom supported on ground wheels and made up of one or more pipes arranged to rotate about a water supply pipe to which the boom is connected. The apparatus is provided with a U-shaped flexible pipe assembly for connecting the boom to the water supply pipe so as to enable the boom to move radially towards and away from the water supply pipe as it rotates while remaining connected thereto. This radial movement causes the distance between the ground wheels and the water supply pipe to vary and reduces the damage caused to a crop and the land in the path of the wheels. The apparatus includes a structure that is rigidly connected to the inner end of the boom. The structure may include rails that slide over a seat mounted on the water supply pipe.

REFERENCES:
patent: 3703990 (1972-11-01), Erickson
patent: 3802627 (1974-04-01), Seckler et al.
patent: 4432494 (1984-02-01), Hunter
patent: 4569481 (1986-02-01), Davis et al.
patent: 4877189 (1989-10-01), Williams
patent: 5695129 (1997-12-01), Korus
patent: 6095439 (2000-08-01), Segal et al.

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