Method and apparatus for pneumatically spreading particulate sub

Details Method and apparatus for pneumatically spreading particulate sub Method and apparatus for pneumatically spreading particulate sub

1976-04-12

1978-02-14

Love, John J.

Fluid sprinkling, spraying, and diffusing

Container for non-fluid material, and scattering means

With means generating or supplying gaseous mixing current

239664, 239502, 239523, A01C 1504

Patent

active

040734390

ABSTRACT:
Method and apparatus for pneumatically spreading a particulate substance for treating the ground. The particulate substance is blown from a hopper through tubes to distribution points. A nozzle is received on the outlet end of each tube. The flow is divided in the nozzle into several parts which are concentrated in inverted chutelike of different lengths and then sprayed towards the ground, perpendicular thereto in the central zone and progressively more obliquely towards the marginal zones. The central zones are covered with a uniform amount of particulate substance which decreases in the marginal zones stepwise or uniformly. The marginal zones of consecutive adjacent passes overlap each other. Various ways of decreasing the distribution of the particulate substance in the marginal zones are described.

REFERENCES:
patent: 2893741 (1959-07-01), Pilch
patent: 3331607 (1967-07-01), Sammarco
patent: 3567120 (1971-03-01), Suda
patent: 3568937 (1971-03-01), Grataloup

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