Liquid-solids applicator with valve means to permit cleaning

Details Liquid-solids applicator with valve means to permit cleaning Liquid-solids applicator with valve means to permit cleaning

2006-02-24

2009-02-10

Novosad, Christopher J. (Department: 3641)

Planting

Liquid or gas soil treatment

Drilling machines

C111S127000, C111S900000

Reexamination Certificate

active

07487731

ABSTRACT:
Apparatus for applying liquid-solid dispersions to soil. Valves are provided which permit cleaning. An elongate conduit, with an aperture at one end, and a first valve proximate such aperture may be opened to permit passage of a pig member. An upwardly extending conduit is “T'ed” off the elongate conduit, and connects with a manifold and a plurality of supply tubes to direct the liquid-solid dispersions to the soil at various points along the frame of the applicator. A second valve may be provided on the upwardly extending conduit, which may be closed to prevent initial supply of the liquid-solid dispersion to the apparatus and instead flow to the aperture to prevent plugging during initial operation. The second valve, when closed, further serves as an anti-siphoning valve to prohibit further supply of liquid solid dispersion to the manifold. A method for cleaning such apparatus is further disclosed.

REFERENCES:
patent: 3556027 (1971-01-01), Ammann
patent: 5520333 (1996-05-01), Tofte
patent: 6772840 (2004-08-01), Headworth

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