Straw and chaff spreader with spread to the rear
September 20, 2020. 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 References 2848238 3539113 Chaff spreader for combine harvester Chaff spreading apparatus Straw chopper and spreader assembly Harvester thresher with means for distributing grain-chaff mixture Straw spreader for a combine harvester and method of spreading Chaff spreading attachment for combines Material spreading apparatus Residue spreading apparatus for agricultural combines InventorsAssigneeApplicationNo. 666723 filed on 09/20/2000US Classes:460/111, STRAW CHAFF SPREADER OR HANDLING (DISCHARGE)241/186.3, Including means to alter direction of flow460/112With chopperExaminersPrimary: Pezzuto, Robert E.Assistant: Kovacs, Arpad F Attorney, Agent or FirmForeign Patent References
International ClassA01F 012/40AbstractAn apparatus for attachment to a rear end of a combine for spreading straw and chaff comprises a pair of side-by-side rotating pans with attached blades for spreading chaff, with a straw spreader attached to and above each pan to spread straw before same falls onto the pans. Each pan is enclosed at the front by a vertical wall with an opening to allow chaff to exit to the rear and side. A lip extends from the top of the wall toward the center of the pan to enhance the air blast and increase the distance chaff is blown. Rear deflectors allow the amount of chaff directed to the rear to be varied.Field of SearchRotating on vertical axisWith chopper STRAW CHAFF SPREADER OR HANDLING (DISCHARGE) THRESHING With blower means MATERIAL DISTRIBUTOR With bar (e.g., rasp bar, inclined blade) With prethreshing cylinder Axial flow through threshing section SEPARATOR Intermeshing Including means to alter direction of flow Adjustable deflector Speed varying means for driven scatterer or feed Including centrifugal force or spattering Including specific driving means Including movable gate, barrier or valve upstream of scatterer Including raking type conveyor moving material toward scatterer Including driven conveyor or follower feeding material horizontally towards scatterer With means for mounting on tractor Laterally extending scatter unit Rotating scatterer receiving material peripherally Plural Scatterer is tubular or in surrounding housing | |
