Patent ID: 7237495

Claim:
A seed planting assembly for forming a furrow, delivering seeds into the furrow, and closing the furrow, the assembly comprising: at least one planting unit including: A. a furrow opening assembly operable to create a furrow; B. a metering assembly operable to receive seeds and deliver seed into the furrow under forced air pressure, wherein the metering assembly includes an air inlet; and C. a furrow closing assembly disposed downstream of the furrow opening assembly operable to close the furrow; a conduit having a first end and a second end, the second end in removable communication with the meter assembly; an air moving assembly including an air moving unit coupled to the first end of the conduit; and an air blocking assembly comprising a sealing member configured to engage the second end of the conduit when the conduit is not connected to the metering assembly, the sealing member configured to prevent air flow through at least a portion of the conduit, wherein the air blocking assembly further comprises a cap having an open end that fits over the second end of the conduit, and wherein the cap has a closed end providing the sealing member.