Air seeder purging system
First Claim
1. In a farm implement for having apparatus for containing a supply of particles to be dispensed, metering means for delivering a plurality of metered particle streams from said apparatus, a plurality of transfer conduits for receiving said plurality of particle streams, an air blower in upstream communication with said transfer conduits for providing a particle entraining stream of air for entraining said particle streams and conveying said particles downstream through said transfer conduits, a plurality of delivery conduits in downstream communication with said transfer conduits for delivering said air-entrained particle streams to the ground, the improvement comprising:
- an air-particle separator;
means for selectively, temporarily disconnecting said transfer conduits from said delivery conduits;
means for temporarily connecting said transfer conduits to said separator; and
a drainage control assembly for selectively bypassing said metering means and permitting gravitational flow of particles from said apparatus to said transfer conduits.
3 Assignments
0 Petitions
Accused Products
Abstract
The air seeder normally passes the contents of its hopper through metering devices that regulate the volume of materials moving into the transporting air streams of the machine, but the hopper is also provided with a series of normally closed drainage apertures which may be selectively opened when it is desired to rapidly dump the hopper contents instead of relatively slowly metering them to the air streams. When the apertures are opened, the hopper contents bypass the metering devices and gravitate directly into the air streams which can be quickly and easily diverted to a cyclone separator that exhausts the air from the streams and concentrates the particles for collection or storage.
51 Citations
14 Claims
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1. In a farm implement for having apparatus for containing a supply of particles to be dispensed, metering means for delivering a plurality of metered particle streams from said apparatus, a plurality of transfer conduits for receiving said plurality of particle streams, an air blower in upstream communication with said transfer conduits for providing a particle entraining stream of air for entraining said particle streams and conveying said particles downstream through said transfer conduits, a plurality of delivery conduits in downstream communication with said transfer conduits for delivering said air-entrained particle streams to the ground, the improvement comprising:
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an air-particle separator; means for selectively, temporarily disconnecting said transfer conduits from said delivery conduits; means for temporarily connecting said transfer conduits to said separator; and a drainage control assembly for selectively bypassing said metering means and permitting gravitational flow of particles from said apparatus to said transfer conduits. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a farm implement having apparatus for containing a supply of particles to be dispensed, metering means for delivering a plurality of metered particle streams from said apparatus, a plurality of transfer conduits for receiving said plurality of particle streams, an air blower in upstream communication with said transfer conduits for providing a particle entraining stream of air for entraining said particle streams and conveying said particles downstream through said transfer conduits, a plurality of delivery conduits connected in downstream communication with said transfer conduits for delivering said air-entrained particle streams to the ground, the improvement comprising:
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a cyclone separator; and means for selectively disconnecting the transfer conduits from said delivery conduits and connecting the transfer conduits with said separator for the delivery of air-entrained particle streams thereto. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification