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US3670739A Expired / Lapsed US ⏱️ 0.0 years remaining

Axial flow combine with a rotary discharge and a straw chopper

Assignee: Unisys Corp
•
Filing: 1971-07-14
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Granted: 1972-06-20
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Expires: 1991-07-14
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Abstract

Abstract An axial flow combine has two axial flow threshing and separating units with a rotary discharge receiving discharged threshed crop material from the rear of the axial units and impelling the threshed crop material through the rear of the combine hood. A straw chopper is mounted at the rear of the hood and has a feed plate extending upwardly and forwardly within the hood for receiving and guiding crop material to the straw chopper. A transverse roll extends along the upper rear edge of the plate to clear the end of threshed crop material.

Inventors

  • 👤 Edward William Rowland-Hill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 00:06
CPC Classifications
A; A01; A01F; A01F12/00; A01F12/40; A01F7/00; A01F7/02; A01F7/06

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 266 words
An axial flow type combine comprising axial flow threshing and separating means for threshing crop material, separating means for separating grain from the remainder of the material, a grain pan underneath said means for collecting grain and moving the grain rearwardly, the grain cleaning means underneath and extending rearwardly of said grain pan to clean the grain and discharge the chaff at the rear of the combine from said cleaning means and in an airborne stream, said separating means having opening means at the rear thereof for discharging thReshed crop material, discharge assembly extending transversely to said separating means and downwardly and rearwardly from said opening means for receiving crop material discharged from said opening means, said assembly having a deflector shield sloping downwardly and rearwardly separating means underneath said opening means for receiving the discharged crop material, upwardly facing concave means extending substantially horizontal and rearwardly from said deflector shield, a transverse means rotatably mounted above said concave means to turn downwardly and rearwardly across said concave means to move the crop material across the concave means for propelling the threshed crop material upwardly and rearwardly clear of the cleaning action of the grain cleaning means, a straw chopper mounted at the rear of the combine to receive and chop the propelled threshed crop material and discharge it from the combine, a feed plate extending upwardly and forwardly from the straw chopper for guiding crop material into said straw chopper and having a transversely extending upper forward end, a rotatable transverse roll extending along said end to maintain said end clear of accumulating crop material.
Claim 2
Dependent Claim 266 words
An axial flow type combine comprising axial flow threshing and separating means for threshing crop material, separating means for separating grain from the remainder of the material, a grain pan underneath said means for collecting grain and moving the grain rearwardly, the grain cleaning means underneath and extending rearwardly of said grain pan to clean the grain and discharge the chaff at the rear of the combine from said cleaning means and in an airborne stream, said separating means having opening means at the rear thereof for discharging thReshed crop material, discharge assembly extending transversely to said separating means and downwardly and rearwardly from said opening means for receiving crop material discharged from said opening means, said assembly having a deflector shield sloping downwardly and rearwardly separating means underneath said opening means for receiving the discharged crop material, upwardly facing concave means extending substantially horizontal and rearwardly from said deflector shield, a transverse means rotatably mounted above said concave means to turn downwardly and rearwardly across said concave means to move the crop material across the concave means for propelling the threshed crop material upwardly and rearwardly clear of the cleaning action of the grain cleaning means, a straw chopper mounted at the rear of the combine to receive and chop the propelled threshed crop material and discharge it from the combine, a feed plate extending upwardly and forwardly from the straw chopper for guiding crop material into said straw chopper and having a transversely extending upper forward end, a rotatable transverse roll extending along said end to maintain said end clear of accumulating crop material.
Claim 3
Dependent Claim 24 words
An axial flow type combine as set forth in claim 1 wherein the axis of said roll is in the plane of said plate.
Claim 4
Dependent Claim 34 words
An axial flow type combine as set forth in claim 1 wherein said feed plate has a transversely extending member adjustably mounted thereon and positionable adjacent to the periphery subscribed by said rotating roll.
Claim 5
Dependent Claim 28 words
An axial flow type of combine as set forth in claim 1 wherein means are provided for driving said roll and for turning said roll downwardly and rearwardly.
Claim 6
Dependent Claim 72 words
An axial flow type of combine as set forth in claim 1 wherein a housing with a rearwardly extending hood is provided and said hood has spaced side walls between which said feed plate is positioned, said roll comprising a shaft rotatably mounted on said side walls, and plate-like members extending longitudinally along said shaft and fixedly attached thereto and each having an outer edge subscribing a periphery moving past said end.
Claim 7
Dependent Claim 35 words
An axial flow type of combine as set forth in claim 5 wherein said plate-like members each have a longitudinal edge portion at an angle thereto and said edges being on said respective edge portions.
Claim 8
Dependent Claim 27 words
An axial flow type of combine as set forth in claim 5 wherein said side walls have annular rims extending inwardly to overlap with said plate-like members.
Claim 9
Dependent Claim 28 words
An axial flow type of combine as set forth in claim 7 wherein said annular rims are concentric with said shaft and the periphery subscribed by said edges.
Claim 10
Dependent Claim 25 words
An axial flow type of combine as set forth in claim 7 wherein said edges are parallel to said shaft and subscribe a cylindrical periphery.

References Cited (Backward Citations)

US2314901A Cited
US2950747A Cited
US3215145A Cited
US3602230A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-20 1975-12-20 1976-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-20 1979-12-20 1980-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-20 1983-12-20 1984-06-20 $7700.00 Window Closed / Lapsed

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