US3583134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop-harvesting structure
Assignee: Maschinenfabrik Kemper GmbH and Co KG
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Filing: 1968-07-26
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Granted: 1971-06-08
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Expires: 1988-07-26
Abstract
Abstract A structure or harvesting crops such as corn, beets, and the like. The structure includes a rotary disc for chopping the crops, and a pair of rollers and a pair of feed screws for feeding crops to a work station located over the rotary disc. A blower coacts with the rotary disc for receiving the chopped crops therefrom and for conveying the crops to a collecting station. The pair of rollers, pair of feed screws, rotary disc, and blower all form a unitary structure adapted to be pulled by a tractor along the ground with the rotary disc situated closely adjacent to the ground. This rotary disc is provided at its outer periphery with cutting blades for cutting through the stalks of crops such as corn or the like.
Inventors
- 👤 Heinz Kemper
- 👤 Wilhelm Ahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:21
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/08; A01D43/081; A01D25/00; A01D25/04; A01D25/042; A01D25/048
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
194 words
A machine for harvesting crops which is adapted to be moved in a predetermined direction, comprising in combination, a pair of substantially horizontal rotary feeding screws rotatably mounted in said machine and driven in opposite directions with respect to each other; a pair of rollers rotatably mounted in said machine behind and parallel to said pair of feeding screws; a rotary disc arranged to rotate in a substantially horizontal plane adjacent to and substantially parallel to the ground; and a blower mounted adjacent to the periphery of said rotary disc in said machine, said blower including a housing and a blower wheel rotatably mounted in said housing and rotating in a substantially vertical plane and coacting with said rotary disc to receive chopped stalks therefrom; said pair of substantially horizontal rotary feeding screws being adapted to engage the stalks of the crop to be harvested and feed the stalks having been cut to said pair of rollers where the stalks are engaged and fed to a working station located above said rotary disc, the latter chopping said stalks and feeding them into said housing, said blower delivering said chopped stalks to a collecting station.
Claim 2
Dependent Claim
194 words
A machine for harvesting crops which is adapted to be moved in a predetermined direction, comprising in combination, a pair of substantially horizontal rotary feeding screws rotatably mounted in said machine and driven in opposite directions with respect to each other; a pair of rollers rotatably mounted in said machine behind and parallel to said pair of feeding screws; a rotary disc arranged to rotate in a substantially horizontal plane adjacent to and substantially parallel to the ground; and a blower mounted adjacent to the periphery of said rotary disc in said machine, said blower including a housing and a blower wheel rotatably mounted in said housing and rotating in a substantially vertical plane and coacting with said rotary disc to receive chopped stalks therefrom; said pair of substantially horizontal rotary feeding screws being adapted to engage the stalks of the crop to be harvested and feed the stalks having been cut to said pair of rollers where the stalks are engaged and fed to a working station located above said rotary disc, the latter chopping said stalks and feeding them into said housing, said blower delivering said chopped stalks to a collecting station.
Claim 3
Dependent Claim
103 words
The machine as set forth in claim 1, wherein said pair of horizontal rotary feeding screws, said pair of rollers, said rotary disc and said blower form a unitary assembly adapted to be moved along the ground, and including a tractor for pulling said unitary assembly along the ground, support means carried by said tractor and supporting said unitary assembly, said tractor having a power takeoff shaft, and drive means driven by said power takeoff shaft, carried in part by said support means, and operatively drivingly connected to said pair of feeding screws, said pair of rollers, said rotary disc and said blower.
Claim 4
Dependent Claim
74 words
The combination of claim 2 and wherein said blower wheel has a plurality of fan blades equidistantly arranged thereon to provide spaces therebetween, said drive means driving said blower wheel and rotary disc at speeds, with respect to each other, which will situate the cutting blades at the periphery of said rotary disc in the spaces between fan blades of said blower wheel, said cutting blades extending through said housing opening of said blower.
Claim 5
Dependent Claim
29 words
The combination of claim 3 and wherein a pair of leaf-raising bars are situated in advance of said fee screws and are inclined downwardly and forwardly with respect theReto.
Claim 6
Dependent Claim
50 words
The machine as set forth in claim 1, wherein said rotary disc has an outer periphery carrying cutting blades for cutting through the stalks of crops such as corn or the like, and wherein said rotary disc has an upper side carrying chopping blades for chopping up the cut stalks.
Claim 7
Dependent Claim
48 words
The machine as set forth in claim 5, wherein said rotary disc carries at its underside elongated substantially radial projections for directing the chopped crops to said blower, said housing of the latter being formed with an opening through which the crops are fed by said radial projections.
Claim 8
Dependent Claim
57 words
The machine as set forth in claim 1, wherein said pair of feed screws and said pair of rollers are detachably mounted in said machine and have been detached and including a beet-pulling device detachably mounted in said machine for pulling beets out of the ground and dropping them through said work station to said rotary disc.
Claim 9
Dependent Claim
27 words
The machine as set forth in claim 1, wherein said pair of feeding screws and said pair of rollers are coaxially arranged with respect to each other.
Claim 10
Dependent Claim
51 words
The combination of claim 7 and wherein said beet-pulling device includes an endless belt and a pulley coacting therewith for compressing beets between the pulley and belt to pull the beets from the ground and direct them to a location over the work station where they fall to said rotary disc.
Claim 11
Dependent Claim
33 words
The combination of claim 7 and wherein said beet-pulling device includes a pair of endless belts having inner runs engaging each other for gripping beets therebetween and directing them to said working station.
Claim 12
Dependent Claim
32 words
The combination of claim 1 and wherein said pair of feed screws and said pair of rollers maintain the crops in an upright position while feeding the crops to said work station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |