Twin row planter

Details Twin row planter Twin row planter

2001-08-27

2003-02-18

Will, Thomas B. (Department: 3671)

Planting

Drilling

Frame and planting-element arrangement

C111S009000, C111S052000

Reexamination Certificate

active

06520100

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of agricultural planters. More particularly, the invention is concerned with a twin row planter including planting units arranged in pairs. Each pair is configured and positioned for planting two rows of seeds less than about ten inches apart to produce two rows of crops in order to increase the yield of the plot. With this spacing, the rows in each pair are close enough to simulate a single row enabling the use of a conventional cultivator, sprayer or harvesting machine.
2. Description of the Prior Art
Conventional planters include a plurality of evenly spaced planting units connected to a tool bar. The planters are usually on centers of 30, 36 38 or 40 inches which is the spacing required for conventional harvesting machines. It is known that rows planted more closely together can result in a higher yield for a given plot of land, but conventional cultivators, sprayers and harvesting machines cannot handle these closely spaced rows. As a result, crop yield is lost and land use is less efficient.
SUMMARY OF THE INVENTION
The present invention solves the prior art problems mentioned above and provides a distinct advance in the state of the art. More particularly, the planter hereof enables the planting of more closely spaced rows in order to increase crop yield in a manner allowing harvesting by conventional harvesting machines.
The preferred planter includes a plurality of planting units mounted to a tool bar with the planting units arranged in pairs. The pairs of planting units are arranged on standard centers such as thirty or thirty-six inches, for example, but the planting units of each pair are positioned and configured so that the respective rows planted by each pair of planting units are spaced apart less than about ten inches. With this spacing, each set of two rows of resulting crops are close enough to simulate a single row thereby enabling the use of a conventional harvesting machine. Other preferred aspects of the present invention are disclosed herein.


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patent: 4485939 (1984-12-01), Gafford et al.
patent: 4771713 (1988-09-01), Kinzenbaw
patent: 5406987 (1995-04-01), Gassner et al.
patent: 5787993 (1998-08-01), Hundeby et al.
patent: 5974986 (1999-11-01), Trisler
“High Yield ‘Twin Row’ Corn Planter”, Farm Show Magazine, vol. 12-3-7, Dec. 1986.*
“Twin Rows for Corn, Soybeans are Back”, Farm Show Magazine, vol. 6-5-23, Dec. 1982.*
“Tiwn-Row Corn and Bean Planter”, Farm Show Magazine, vol. 24-2-5, Dec. 1988.*
“A Multi-talented planter”, Progressive Farmer, vol. 117—4, starting on p. 46, Feb. 2002.*
“Twin-Row Configuration”, Progressive Farmer, vol. 116—10, starting on page ss10, Sep. 2001.

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