Patent US4297830A successfully refreshed from Google Patents.
US4297830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bean harvester
Assignee: Individual
•
Filing: 1980-02-25
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Granted: 1981-11-03
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Expires: 2000-02-25
Abstract
Abstract An improved bean harvester comprising a frame attachable to a tractor, the frame having a transverse mounting shaft between the front and rear tractor wheels, and a plurality of cutting blades each pivotally mounted to the shaft and each having a presetting height adjustment and cutting angle adjustment and blade cleaning scraper, each cutter blade being independently hydraulically powered.
Inventors
- 👤 Donald E. Dufner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:37
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/22; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/661; Y; Y10; Y10S; Y10S56/00; Y10S56/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
145 words
An apparatus for cutting beans and other crops, for attachment to a tractor comprising (a) an elongated drawbar shaft and means for attaching said drawbar shaft in transverse position on a tractor between the front and rear wheels thereof; (b) a plurality of sleeve sections rotatably fitted on said drawbar shaft; (c) a plurality of brackets respectively attached to each of said sleeve sections and extending rearwardly of said drawbar shaft; (d) a plurality of rotatable power drive units, each respectively attached to a bracket and having a downwardly projecting power drive shaft; (e) a plurality of spool-shaped cutters, each respectively attached to a power drive shaft and having a lower cutting edge and an upper shield edge; and (f) means for rotatably positioning each of said plurality of sleeve sections about said drawbar shaft; thereby raising and lowering each of said plurality of cutters.
Claim 2
Independent Claim
145 words
An apparatus for cutting beans and other crops, for attachment to a tractor comprising (a) an elongated drawbar shaft and means for attaching said drawbar shaft in transverse position on a tractor between the front and rear wheels thereof; (b) a plurality of sleeve sections rotatably fitted on said drawbar shaft; (c) a plurality of brackets respectively attached to each of said sleeve sections and extending rearwardly of said drawbar shaft; (d) a plurality of rotatable power drive units, each respectively attached to a bracket and having a downwardly projecting power drive shaft; (e) a plurality of spool-shaped cutters, each respectively attached to a power drive shaft and having a lower cutting edge and an upper shield edge; and (f) means for rotatably positioning each of said plurality of sleeve sections about said drawbar shaft; thereby raising and lowering each of said plurality of cutters.
Claim 3
Dependent Claim
38 words
The apparatus of claim 1, further comprising a plurality of hinge means each hinge respectively attached between a rotatable power drive unit and a bracket for permitting a pivotal movement of said drive unit relative to said bracket.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2, further comprising an adjustable arm between each of said hinge means and said respective brackets.
Claim 5
Dependent Claim
22 words
The apparatus of claim 3, further comprising an elongated slot in each of said adjustable arms, for adjustment of said adjustable arm.
Claim 6
Dependent Claim
18 words
The apparatus of claim 3, further comprising a pivoted connection between said adjustable arm and said hinge means.
Claim 7
Dependent Claim
31 words
The apparatus of claim 1, further comprising blade means for cleaning the upper surface of each of said cutters lower cutting edge, said blade means being respectively attached to a bracket.
Claim 8
Dependent Claim
47 words
The apparatus of claim 1, wherein said means for rotatably positioning said plurality of sleeve sections further comprises an arm attached to each of said sleeve sections, a connecting rod attached to each of said arms, and a latchable lever coupled to each of said connecting rods.
Claim 9
Independent Claim
193 words
An apparatus for cutting beans and other crops, for attachment to a tractor comprising: (a) an elongated drawbar having a circular cross section and having means for attachment to said tractor at a point intermediate the front and rear wheels thereof; (b) a plurality of sleeve sections rotatably mounted in adjacent positions on said drawbar; (c) a pair of elongated arm members rigidly attached to a sleeve section, said arm members projecting radially outward from said sleeve section in angular separation from each other; (d) a mounting plate hinged to the end of one of said arm members; (e) a rotatable power drive unit rigidly attached to said mounting plate, said drive unit having a drive shaft extending therefrom; (f) a cutter blade attached to said drive shaft, said cutter blade having a dish-shaped upper portion, a cylindrical center portion, and a circular blade lower portion; (g) a connecting rod attached to the other of said arm members; and (h) a latchable lever attached to said connecting rod, said lever being positionable in a plurality of positions and consequently positioning said other arm member in a plurality of angular positions about said drawbar.
Claim 10
Independent Claim
193 words
An apparatus for cutting beans and other crops, for attachment to a tractor comprising: (a) an elongated drawbar having a circular cross section and having means for attachment to said tractor at a point intermediate the front and rear wheels thereof; (b) a plurality of sleeve sections rotatably mounted in adjacent positions on said drawbar; (c) a pair of elongated arm members rigidly attached to a sleeve section, said arm members projecting radially outward from said sleeve section in angular separation from each other; (d) a mounting plate hinged to the end of one of said arm members; (e) a rotatable power drive unit rigidly attached to said mounting plate, said drive unit having a drive shaft extending therefrom; (f) a cutter blade attached to said drive shaft, said cutter blade having a dish-shaped upper portion, a cylindrical center portion, and a circular blade lower portion; (g) a connecting rod attached to the other of said arm members; and (h) a latchable lever attached to said connecting rod, said lever being positionable in a plurality of positions and consequently positioning said other arm member in a plurality of angular positions about said drawbar.
Claim 11
Dependent Claim
16 words
The apparatus of claim 8, wherein said rotatable power drive unit further comprises a hydraulic motor.
Claim 12
Dependent Claim
24 words
The apparatus of claim 8, wherein said drawbar means for attachment to a tractor further comprises attachment means between said front and rear wheels.
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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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |