Planting – Drilling – Having depositor feature
Patent
1996-08-20
1998-12-01
Carone, Michael J.
Planting
Drilling
Having depositor feature
111179, 221211, 221254, A01C 700
Patent
active
058424288
ABSTRACT:
Vacuum seed metering apparatus is operably arranged in combination with a seed storage hopper. The seed metering apparatus includes a rotatable disc having a circular row of apertures for movement along a predetermined path during rotation of the disc. A housing is arranged in seed receiving relation relative to the seed hopper, and includes an interior divided by the disc into a seed chamber to hold seeds and a vacuum chamber extending at least partially around the path of movement of the apertures. The vacuum chamber has a leading end, a trailing end, and a vacuum exhaust port in communication with a vacuum source therebetween. The trailing end of said chamber is arranged adjacent to a seed discharge area where seeds are released from the disc, and an opening is provided proximate to the seed discharge area to enhance the release of seeds from the disc. Particularly, this opening may include a plurality of vertically spaced openings in the seed discharge area and an elongate slot adjacent to the trailing end of the vacuum chamber. The housing also includes an axially extending circumferential wall having a circumferential opening therein. The circumferential opening is sized to allow air to flow into the seed chamber along at least a portion of the path of movement of the apertures.
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Dunham Lisle J.
Johnson Donald T.
Olson Thomas A.
Stufflebeam John F.
Batson Victor
Carone Michael J.
Case Corporation
Speer Richard A.
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