SEED TUBE DIFFUSER FOR A PNEUMATIC SEED PLANTER

摘要

An air diffuses for use in a seed delivery tube of a pneumatic type of seed planter. This air diffuser is a short length of pipe which is perforated with a plurality of holes. The effective open area of the holes being approximately fifty-percent greater than the open area within the pipe taken on a cross-section of the pipe at the location of the holes. The air diffuser is spliced into the tube at a determinant length from the seed discharge end of the tube. It helps to maintain a uniform spacing of seed planted in the ground by preventing the buildup of back pressure upstream from the seed discharge end of the tube. If back pressure is permitted to build up in the tube, it will change the velocity of the seed traveling through the tube and effect the spacing of the seed planted in the ground.