A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
A01C 7/20 (2006.01) A01C 7/06 (2006.01) A01C 7/08 (2006.01)
Patent
CA 2219230
A switching device is provided for use with a dual feed air seeder allowing the seeder to be used as a dual feed seeder or a single feed feeder. The switching device may be provided as a conversion kit for use with an existing dual feed seeder, or as an integral part of a newly manufactured air seeder. The switching device comprises connecting duct arranged between the first and secondducts of the seeder with the inlet of the connecting duct lying adjacent an opening in the second duct and the outlet of the connecting duct connected at an opening inthe first duct. Means for directing the air stream in the second duct are provided which direct the second air stream from the opening in the second duct to the inlet of the connecting duct and through the connecting duct to the first duct therebycombining the second air stream with the first air stream. The means for directing the air stream in the second duct may be a flexible duct connected at its first end to the opening in the second duct and being selectively positionable at its second end between a first position with the second end connected to a downstream section of the second duct thereby directing the second air stream along the second duct tothe outlet of the second duct, and a second position with the second end connected to the inlet end of the connecting duct directing the second air stream through the connecting duct to the first duct thereby combining the second air stream with the first air stream. Alternatively the inlet end of the connecting duct may be connected to the second duct at the opening in the second duct to receive the second air stream, and the means for directing the air stream in the second duct may comprise a valve arranged in the connecting duct at the opening in the second duct. The valve is selectable between a first position directing the second air stream along the second duct to the outlet, and a second position directing the second air streamthrough the connecting duct to the first duct.
Ade & Company
Simon Wayne A.
LandOfFree
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