Material spreading apparatus
Patent 5215500 Issued on June 1, 1993. Estimated Expiration Date: 
April 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesChaff spreading apparatus Chaff spreader Patent #: 5082186 InventorApplicationNo. 873299 filed on 04/23/1992US Classes:460/111, STRAW CHAFF SPREADER OR HANDLING (DISCHARGE)239/667, Plural, rotary scatterers, on intersecting axes or coaxial and counter rotating239/682PluralExaminersPrimary: Bagnell, DavidForeign Patent References
International ClassesA01C 017/00A01F 012/30 Foreign Application Priority Data1992-04-22 CAAbstractAn apparatus for attachment to the rear of a harvester-thresher to evenly distribute the by-product of threshing evenly over a wide area. The by-product is mainly straw and chaff. The apparatus is a single integrally combined unit formed of a straw spreader and a chaff spreader and driven by a single variable speed hydraulic motor. The by-product has a first portion engaged by the flexible and easily releasable flails of the straw spreader as it leaves the rear of the harvester-thresher, the remaining portion gravitates or is directed to the high volume air flow chaff spreader to complete the controllable distribution of the by-product. To increase the efficiency of the unit a shroud with deflectors has been placed around the chaff spreader.Field of SearchSTRAW CHAFF SPREADER OR HANDLING (DISCHARGE)With chopper For discharging crop from harvester By blower on cutter-driving shaft Scattering means is flail Plural, rotary scatterers, on intersecting axes or coaxial and counter rotating Plural scatterers receiving material axially Rotating scatterer Plural Scatterer is tubular or in surrounding housing | |
