Abstract: Method and apparatus for transferring particulate matter, such as seed, from a bulk supply to planting apparatus such as a planter or drill utilizing a pneumatic conveyer system including a lightweight, portable rotary air lock for introducing the particulate matter into the pneumatic conveying system. The system further includes a blower for pressurizing the pneumatic conveyer line and a discharge device at a remote end of the pneumatic conveyor line for delivering the seed or other particulate matter directly into the seed boxes associated with the planting apparatus. An adapter is also included for coupling the lightweight rotary air lock to a bulk supply container such that the lightweight rotary air lock is held at a predetermined angle with respect to the vertical.

Abstract: A pneumatic conveyor and related method for seeds or other particulate matter comprises a cyclone or vortex type discharge device, a blower for supplying a flow of air, a conduit coupled to the blower and to the discharge device for supplying a flow of air thereto, the conduit being primarily a flexible conduit, and a venturi in the conduit for pneumatic coupling to a supply of seeds whereby the seeds may be withdrawn from a supply container into the venturi for transport with the air stream to the discharge device. The venturi is connected to the container by a component that comprises a slide gate closure between the opening of the container and the intake of the venturi.