초록 ▼

An apparatus for the application of a liquid chemical treatment to plants in a field. The apparatus includes a movable framework and first and second spaced-apart depending portions mounted upon the framework for providing a space extending longitudinally of the framework. First and second air displ

An apparatus for the application of a liquid chemical treatment to plants in a field. The apparatus includes a movable framework and first and second spaced-apart depending portions mounted upon the framework for providing a space extending longitudinally of the framework. First and second air displacers are carried by the first and second depending portions for creating first and second opposed streams of air in directions at an angle to the longitudinal axis. The air displacers are positioned on the depending portions so that the first and second opposed streams of air are longitudinally offset from each other. Nozzles are carried by the framework for introducing the liquid chemical treatment into the streams of air produced by the air displacers. The streams of air caused the plants to bend to and fro as the plant passes through the space so as to permit the chemical treatment to reach the underside of the plants. A method for using the apparatus is provided.

대표청구항 ▼

[ What is claimed is:] [1.] In an apparatus for application of a chemical treatment to plants in a field, a framework movable over the plants in the field, an impeller having a hub and at least one blade member extending radially, outwardly from the hub, the impeller being carried by the framework f

[ What is claimed is:] [1.] In an apparatus for application of a chemical treatment to plants in a field, a framework movable over the plants in the field, an impeller having a hub and at least one blade member extending radially, outwardly from the hub, the impeller being carried by the framework for rotation about an axis of rotation, a shroud carried by the framework at least partially surrounding the impeller, the shroud having a baffle wall and having an exit opening which is adjacent the impeller and faces the plants, means for rotating the impeller about the axis of rotation, the axis of rotation extending in a direction relative to the exit opening such that the blade member is traveling in a direction toward the exit opening as the blade member passes the baffle wall whereby the movement of the blade member relative to the baffle wall creates a stream of air in pulsating form at the exit opening and means carried by the framework for dispensing the chemical treatment onto the plants.