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US 4,657,773 AGranted
Process and an apparatus for dressing seed
AssigneeGebruder Buhler AG
InventorRoman Mueller
Life of this patent
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AssigneeGebruder Buhler AG
InventorRoman Mueller
Estimating the term…
For dressing, seed is thrown off in dispensed doses into a trough-shaped rotary table (36) in the form of a free-falling annular veil. During its freefall, the seed is guided through a jet of dressing in the form of an annular surface, which is thrown outwards from the interior of the annular veil and which is generated when dressing is thrown out via a centrifugal plate (36), and is wetted with dressing. During the subsequent throwing out on the rotary table (9), the seed is subjected again to dressing which is finely distributed on and massaged into the grain surface because the seed grains roll on the rotary table (9) continuously and at the same time strike against one another and rub on one another. In an apparatus for carrying out the process, the rotary table (9) is made dish-like with an edge extending upwards and outwards, a dressing spray device (5) being arranged concentrically inside the rotary table (9) and there being attached above both of these a seed dispensing and distributing channel (10, 11, 8), via which the seed streams down onto the rotary table (9) in the form of an annular veil.
A process for dressing seed which is subjected to dressing while in freefall towards a rotary table and which is subsequently ejected outwardly into a dressing chamber from the rotary table, comprising the steps of:
In an apparatus for dressing seed, the apparatus being of the type including a dressing chamber having a seed dispensing and feed system, in which seed falling in free-fall is subjected to dressing delivered by a dressing distributor device and is deflected and thrown off by a rotary table arranged under the dressing distributor device, the improvement comprising:
In an apparatus for dressing seed, the apparatus being of the type including a treatment space which has a seed feed system and which accommodates a distributor device generating a jet of dressing and connected to a feed device for the dressing, through which jet of dressing the seed can be conveyed along a path by means of a seed distributor so as to stream in the manner of a veil, the improvement comprising a dressing spray device having a rotor including a substantially flat centrifugal plate and an edge member about the periphery of said plate sloping upwardly and radially outwardly relative to said plate, said edge member having a sloping surface facing radially inwardly and a top edge, and a plurality of inwardly projecting blades on sloping surface in spaced relationship therealong.
Dependencies are inferred from the claim text.