FERTILIZER DISPENSER

• US 3,854,429 A
• Filed: 01/19/1973
• Issued: 12/17/1974
• Est. Priority Date: 01/19/1973
• Status: Expired due to Term

• Current Assignee: Calvin B. Blair
• Original Assignee: Calvin B. Blair
• Inventors: Blair, Calvin B.
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US05/325,175
• Time in Patent Office: 697 Days
• Field of Search: 111/7,6,73,81,85
• US Class Current: 111/188
• CPC Class Codes: A01C 21/002 Apparatus for sowing fertiliser; Fertiliser drill
• CPC Class Codes: A01C 23/025 Continuous injection tools

Abstract

Dry granular fertilizer or other dry materials are simultaneously and compatibly dispensed with anhydrous ammonia fertilizer by using a rearwardly open dispenser box located immediately behind a furrow-producing chisel plow. An anhydrous ammonia dispenser tube runs downwardly through the box and discharges just behind the chisel plow while the dry materials are dispensed into an open space formed behind the box by outwardly projecting wings and a sloping bottom wall, the wings and bottom wall simultaneously covering the furrow into which the ammonia is dispensed.

Claims

1. A fertilizing implement comprising:

a. an agricultural tool plow tooth support having a forward surface and a trailing surface, b. a plow tooth mounted on said forward surface and having a point adapted to project into the soil and open a furrow upon thE forward motion of said support, c. a rearwardly open dispenser box mounted on said trailing surface and having spaced apart upwardly extending side walls and a bottom wall, d. a dry material dispensing tube secured to said box and having a lower end opening above said bottom wall, dry material supply means communicating with said dispensing tube, an anhydrous ammonia tube extending downwardly past said box and having a lower end terminating behind said plow tooth, anhydrous ammonia supply means communicating with said ammonia tube, e. said bottom wall sloping downwardly and rearwardly from said support and serving to close the portion of the furrow into which ammonia is dispensed while dry material is directed rearwardly from said box, and f. wings directed laterally outwardly of said side walls near said bottom wall and adapted to cooperate with said bottom wall in closing said furrow portion.

2. The implement as set forth in claim 1 wherein:

a. said box is mounted at an elevation above said point.

3. The implement as set forth in claim 1 wherein:

a. said anhydrous ammonia tube extends downwardly through said box and through said bottom wall at a position remote from the area of contact by said dry material.

4. A fertilizing implement comprising:

a. a furrow producing member having a front portion and a rear portion, anhydrous ammonia supply means, b. means connected to said ammonia supply means and located rearwardly of said furrow producing member for dispensing anhydrous ammonia behind said furrow producing member and in said furrow, c. a furrow closing member positioned behind said anhydrous ammonia dispensing means and having walls rearwardly enclosing the portion of the furrow into which ammonia is dispensed, d. means associated with said furrow closing member for dispensing dry material rearwardly thereof, dry material supply means connected to said means associated with said furrow closing member, e. said furrow closing member being a rearwardly open box, said walls including a downwardly and rearwardly sloping well forming the bottom of said box, selected furrow closing member walls forming laterally extending wings.

5. The implement as set forth in claim 4 wherein:

a. said anhydrous ammonia dispensing means comprises a tube extending downwardly through said bottom wall.