US 12,069,979 B2
Rotating ground driven high speed precision vacuum planter with seed injection teeth
Joseph D. Bassett, Sycamore, IL (US)
Assigned to DAWN EQUIPMENT COMPANY, INC., Sycamore, IL (US)
Filed by Dawn Equipment Company, Sycamore, IL (US)
Filed on Dec. 3, 2020, as Appl. No. 17/111,196.
Claims priority of provisional application 62/943,227, filed on Dec. 3, 2019.
Prior Publication US 2021/0161062 A1, Jun. 3, 2021
Int. Cl. A01C 7/00 (2006.01); A01C 5/04 (2006.01); A01C 7/04 (2006.01); A01C 7/08 (2006.01); A01C 7/10 (2006.01); A01C 7/16 (2006.01); A01C 7/20 (2006.01)
CPC A01C 7/002 (2013.01) [A01C 5/04 (2013.01); A01C 7/044 (2013.01); A01C 7/081 (2013.01); A01C 7/105 (2013.01); A01C 7/16 (2013.01); A01C 7/20 (2013.01); A01C 7/203 (2013.01); A01C 7/208 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An agricultural seed planter comprising:
a plurality of modules arranged around a center to form a planting wheel, each of the modules including:
a tooth for injecting a seed into the soil, the tooth including a hole passing through the length of the tooth; and
a pressure generator coupled to the tooth and configured to generate positive or negative pressure to control a position of the seed when the seed is received by the tooth;
a frame coupled to the planting wheel;
at least one gauge wheel coupled to the frame; and
a seed chamber coupled to the planting wheel,
wherein each of the plurality of modules further includes:
a retractable tooth filler configured to be in at least one of a first position or a second position, a distance between the retractable tooth filler and the tooth being smaller in the first position relative to the second position, and
wherein each retractable tooth filler of a first set of modules in the plurality of modules is positioned in the first position, and each retractable tooth filler of a second set of modules in the plurality of modules is in the second position.