| US 7,472,660 B2 | ||
| Seed tube for an agricultural seeding machine | ||
| Nathan A. Mariman, Geneseo, Ill. (US); Mark S. Sommer, East Moline, Ill. (US); James R. Peterson, Annawan, Ill. (US); Donald K. Landphair, Bettendorf, Iowa (US); and William G. Bultinck, Andover, Minn. (US) | ||
| Assigned to Deere & Company, Moline, Ill. (US) | ||
| Filed on Oct. 13, 2005, as Appl. No. 11/250,655. | ||
| Prior Publication US 2007/0084387 A1, Apr. 19, 2007 | ||
| Int. Cl. A01C 7/00 (2006.01); A01C 9/00 (2006.01) | ||
| U.S. Cl. 111—174 [111/903] | 25 Claims |
| 1. A seed tube, through which individual seeds pass, for an agricultural seeding machine, said seed tube comprising:
a side wall having a continuous non-disjoint substantially smooth surface exposed to said seeds and including at least a portion
thereof comprised of a substantially transparent material; and
a sensor including a transmitter, said transmitter positioned adjacent an outside of said side wall, and operating through
said transparent material to detect passage of individual seeds through said seed tube.
|