Seed dispersion unit

• US 9,826,676 B2
• Filed: 09/30/2015
• Issued: 11/28/2017
• Est. Priority Date: 09/30/2015
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Borkgren, Stanley R.
• Primary Examiner(s): WEISS, JOHN
• Application Number:
  US14/871,686
• Publication Number:
  US 20170086350A1
• Time in Patent Office: 790 Days
• Field of Search: 111175, 406181, 221278
• CPC Class Codes: A01C 5/062 Devices for making drills or furrows
• CPC Class Codes: A01C 5/068 Furrow packing devices, e.g. press wheels
• CPC Class Codes: A01C 7/042 using pneumatic means
• CPC Class Codes: A01C 7/084 Pneumatic distribution heads for seeders
• CPC Class Codes: A01C 7/163 Gravity distributors

Abstract

A seed dispersion unit for distributing a plurality of seeds includes a single inlet for the plurality of seeds, a chamber in communication with the single inlet, and a plurality of outlet conduits in communication with the chamber. Each of the plurality of outlet conduits is configured to transfer a portion of the plurality of seeds from the chamber. An annular base defines a portion of the chamber. Each of the outlet conduits extends radially from the base.

Claims

1. A seed dispersion unit for distributing a plurality of seeds, the seed dispersion unit comprising:

a single inlet for the plurality of seeds;

a chamber in communication with the single inlet;

a plurality of outlet conduits in communication with the chamber, each outlet conduit of the plurality of outlet conduits configured to transfer a portion of the plurality of seeds from the chamber;

an annular base defining a portion of the chamber, wherein each outlet of the plurality of outlet conduits extends radially from the base; and

a central air tube including an air inlet and an air outlet, wherein the air outlet includes a plurality of air conduits that terminate within the chamber, and wherein the air inlet includes an air-permeable material operable to preclude the plurality of seeds from entering the air inlet.

2. The seed dispersion unit of claim 1, wherein each air conduit is radially aligned with one of the plurality of outlet conduits.

3. The seed dispersion unit of claim 2, wherein each air conduit is angled with respect to the respective one of the plurality of outlet conduits by greater than 30 degrees.

4. The seed dispersion unit of claim 1, wherein the air conduits are each separated by a ridge extending from the base.

5. The seed dispersion unit of claim 1, wherein the single inlet follows a helical path into the chamber.

6. The seed dispersion unit of claim 1, wherein each air conduit of the plurality of air conduits terminates within the chamber.

7. The seed dispersion unit of claim 6, wherein each air conduit of the plurality of air conduits is noncontinuous with the respective one of the plurality of outlet conduits.

8. The seed dispersion unit of claim 1, further comprising an agitator positioned within the chamber and operable to vibrate within the chamber.

9. A seeding system for planting a plurality of seeds, the seeding system comprising:

a frame;

a seed dispersion unit coupled to the frame and including an inlet and a chamber at least partially defined by an annular wall;

a plurality of ground openers, each ground opener of the plurality of ground openers operable to produce a furrow;

a plurality of conduits, each conduit of the plurality of conduits positioned to transfer a portion of the plurality of seeds from the chamber to one of the furrows; and

a central air tube in communication with the inlet and ending in a plurality of air conduits within the chamber,

wherein each conduit of the plurality of conduits extends through the annular wall, and

wherein each air conduit of the plurality of air conduits includes a first tubular end positioned within the chamber, and wherein the plurality of conduits is positioned to transfer a portion of the plurality of seeds from the chamber to one of the furrows, and wherein each air conduit includes a second tubular end positioned within the chamber.

10. The seeding system of claim 9, wherein the first tubular end is noncontinuous with the second tubular end.

11. The seeding system of claim 10, wherein a portion of the first tubular end is rigidly connected to a portion of the second tubular end.

12. The seeding system of claim 9, wherein the central air tube includes an air-permeable material operable to preclude the plurality of seeds from entering the central air tube.

13. The seeding system of claim 9, wherein each air conduit is radially aligned with one of the plurality of outlet conduits.

14. The seeding system of claim 9, wherein each conduit of the plurality of conduits extends radially through the annular wall.

15. The seeding system of claim 9, wherein each air conduit is angled with respect to the one of the plurality of outlet conduits by greater than 30 degrees.

16. The seeding system of claim 9, wherein each air conduit of the plurality of air conduits within the chamber is separated from another of the plurality of air conduits by a ridge extending from the annular wall.