Planting – Drilling – Including seed tamper in furrow
Reexamination Certificate
1999-05-12
2001-04-03
Batson, Victor (Department: 3671)
Planting
Drilling
Including seed tamper in furrow
C111S200000, C172S753000, C172S772000
Reexamination Certificate
active
06209466
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is directed to a two piece seed boot for a seeding machine, wherein the high wear portion of the seed boot can be replaced as needed.
2. Description of the Prior Art
Grain drills and air seeders are seeding machines for solid planting a crop. More specifically, the seeding rows are so close together as to prevent cultivation and/or other cultural practices. The seed is kept in a large hopper which supplies a plurality of seed meters. An individual seed meter is associated with each planting unit. The seed meter in turn directs the metered seed through a seed tube to a seed boot having a seed passage. The seed boot is associated with a furrow opener which forms a planting furrow. The seed boot directs the seed into the planting furrow which is closed by a furrow closing wheel.
Deere & Company, the assignee of the present patent application, currently manufactures and markets a 1560 Series grain drill. This grain drill is provided with a single disc opener and a single casting seed boot. The furrow opener forms the planting furrow while the seed boot maintains the planting furrow open as the seed is being introduced. The lower portion of the seed boot are in continual contact with the soil during planting operations and are subjected to higher rates of wear than the upper portion. As the lower portion of the seed boot wears away, the farmer is forced to replace the total seed boot casting.
With air seeders an air stream is used to direct metered seed and fertilizer to a planting unit. On some air seeders, manufactured and marketed by Deere & Company, the planting unit is almost identical to the planting unit used on the 1560 Series grain drill described above.
SUMMARY
It is an object of the present invention to provide a two piece seed boot that can be used on a grain drill or an air seeder.
It is a feature of the invention that the lower portion of the seed boot can be replaced as it becomes worn without replacing the upper portion of the seed boot.
The present invention comprises a seed boot having an upper portion that is coupled to the seed tube and a lower portion that is coupled to the upper portion. Both the upper portion and the lower portion are castings. The upper portion is provided with an upper seed passage for receiving metered seed from the seed tube and for discharging metered seed to the lower portion. The lower portion is provided with a lower seed passage for receiving metered seed from the upper portion and for discharging seed to the planting furrow formed by the furrow opener and maintained by the seed boot.
The forward portion of the lower portion is provided with an upwardly and forwardly extending first mounting lug which engages a mounting recess located in the forward portion of the upper portion. The planting furrow side of the lower portion is provided with a second mounting lug that extends upward and engages the planting furrow side of the upper portion. The rear portions of both the upper portion and the lower portion are provided with aligned mounting holes for receiving a mounting bolt to hold the lower portion to the upper portion. A seed retaining tongue extends downwardly and rearwardly from the lower portion behind the lower seed passage for retaining seed deposited in the planting furrow. The upper portion of the tongue is received in a recess located between the upper and lower portions trapping the tongue therebetween.
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John Deere Parts Catalog, (John Deere Des Moines Works PC 2246-Nov.-96), titled “750 Series Grain Drill”, front and back pages, as well as pages A3, D1, and D2, printed in the U.S.A.
John Deere Brochure FMO-121B titled “Fundamentals of Machine Operation—Planting”, front and back pages as well as pp. ii, 95-120, printed in the U.S.A., 1975.
John Deere Brochure DKA147 titled “No-Till Drills”, front and back pages as well as pp. 3 -15, printed in the U.S.A.
Batson Victor
Deere & Company
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