| US 7,584,707 B2 | ||
| Wear resistant seed tube for an agricultural planter | ||
| Derek A. Sauder, Tremont, Ill. (US); Chad E. Plattner, Tremont, Ill. (US); and Brad A. Wiegand, Mackinaw, Ill. (US) | ||
| Assigned to Precision Planting, Inc., Tremont, Ill. (US) | ||
| Appl. No. 12/64,056 PCT Filed Aug. 17, 2006, PCT No. PCT/US2006/032146 § 371(c)(1), (2), (4) Date Feb. 18, 2008, PCT Pub. No. WO2007/024624, PCT Pub. Date Mar. 01, 2007. |
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| Claims priority of provisional application 60/710003, filed on Aug. 19, 2005. | ||
| Prior Publication US 2008/0236461 A1, Oct. 02, 2008 | ||
| Int. Cl. B65H 3/08 (2006.01) | ||
| U.S. Cl. 111—140 [111/164; 111/170; 111/177; 111/187; 111/195; 222/567; 222/575] | 21 Claims |
| 1. A seed tube adapted to be disposed between furrow opening disks of an agricultural planter, said seed tube comprising;
a rearwardly curving forward wall, a rearwardly curving rearward wall and opposing sidewalls defining a seed passageway which
curves rearwardly from an upper ingress end toward a lower egress end through which seeds exit said passageway before being
deposited in the furrow formed by the furrow opening disks;
wear resistant material disposed proximate said egress end such that said wear resistant material prevents appreciable wear
of said egress end when said egress end contacts said furrow opening disks during planting operations, wherein appreciable
wear would effect seed trajectory as the seeds exit said passageway.
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