US4003384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain distribution means for rotary combine
Assignee: Unisys Corp
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Filing: 1976-03-29
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Granted: 1977-01-18
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Expires: 1996-03-29
Abstract
Abstract A mobile combine having longitudinally extending rotor and concave threshing members and a reciprocating grain pan beneath said concave to receive threshed and partially threshed crop products for passage to sieve mechanism, and angular deflector members fixed to and reciprocable with said grain pan and extending longitudinally therewith, said members extending downward and inward from opposite sides of the chamber below said concave and above said grain pan to deflect grain falling from said concave and direct it toward the center of said grain pan to prevent crop material from gravitating more to one side of said grain pan than the other such as during hillside harvesting operations.
Inventors
- 👤 John J. Komancheck
- 👤 Robert R. Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:09
CPC Classifications
A; A01; A01F; A01F7/00; A01F7/02; A01F7/06; A01D; A01D75/00; A01D75/28; A01D75/282
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
197 words
A mobile combine having threshing means carried thereby and comprising rotor and cooperating concave means, means on the forward end of the combine operable to feed material to said threshing means, a grain pan supported upon said combine below said threshing means to receive threshed crop material from said threshing means, sieve means supported within said combine rearwardly of said grain pan to receive threshed crop material from said grain pan and operable to separate desired crop material from chaff and other waste material, movable means in said combine supporting said grain pan and sieve means for fore-and-aft reciprocation within said combine to effect such separation, and power means operable to actuate said threshing means and reciprocate said grain pan and sieve means as aforesaid; the improvement comprising at least one angularly disposed deflector member fixed to said grain pan and reciprocable therewith, said deflector member respectively extending downward and inward toward said grain pan from the side edge thereof below said concave means and operable to deflect crop material discharged from said concave toward the center of said grain pan and thereby minimize tendencies for crop material to gravitate to the side of the grain pan.
Claim 2
Dependent Claim
197 words
A mobile combine having threshing means carried thereby and comprising rotor and cooperating concave means, means on the forward end of the combine operable to feed material to said threshing means, a grain pan supported upon said combine below said threshing means to receive threshed crop material from said threshing means, sieve means supported within said combine rearwardly of said grain pan to receive threshed crop material from said grain pan and operable to separate desired crop material from chaff and other waste material, movable means in said combine supporting said grain pan and sieve means for fore-and-aft reciprocation within said combine to effect such separation, and power means operable to actuate said threshing means and reciprocate said grain pan and sieve means as aforesaid; the improvement comprising at least one angularly disposed deflector member fixed to said grain pan and reciprocable therewith, said deflector member respectively extending downward and inward toward said grain pan from the side edge thereof below said concave means and operable to deflect crop material discharged from said concave toward the center of said grain pan and thereby minimize tendencies for crop material to gravitate to the side of the grain pan.
Claim 3
Dependent Claim
64 words
The combine according to claim 1 in which said grain pan is provided with a plurality of divider members extending vertically and longitudinally with respect to said grain pan, said divider members being spaced at transverse intervals across said grain pan and operable to maintain distribution of crop material upon the grain pan in a substantially even manner between the opposite side edges thereof.
Claim 4
Dependent Claim
58 words
The combine according to claim 1 in which more than one deflector members are provided at least one of which extends downward from each of the opposite side edges of said grain pan to minimum tendencies for crop material to gravitate more to one side of the grain pan than the other such as during hillside harvesting operations.
Claim 5
Dependent Claim
64 words
The combine according to claim 3 in which said grain pan is provided with a plurality of divider members extending vertically and longitudinally with respect to said grain pan, said divider members being spaced at transverse intervals across said grain pan and operable to maintain distribution of crop material upon the grain pan in a substantially even manner between the opposite side edges thereof.
Claim 6
Dependent Claim
51 words
The combine according to claim 4 in which said deflector members carried by said grain pan respectively extend at similar acute angles to said grain pan and the lower edges of said deflector members being connected to similar divider members of said grain pan for support thereby and reciprocable movement therewith.
Claim 7
Dependent Claim
52 words
The combine according to claim 5 in which the lower edges of said deflector members have flanges thereon parallel to said divider members and said flanges being secured to said similar divider members by bolts which extend commonly through said flanges and divider members to connect said flanges to said divider members.
Claim 8
Dependent Claim
56 words
The combine according to claim 5 in which said grain pan extends substantially horizontally and transversely co-extensive with the opposite sides of said threshing means and the outer upper edges of said deflector members extending outward in opposite directions but being spaced a limited distance from a vertical projection from the sides of said grain pan.
Claim 9
Dependent Claim
47 words
The combine according to claim 7 in which said threshing means comprise a pair of similar rotors and each rotor having a concave below the lower portion of said rotors, and said grain pan extending transversely in vertical alignment with the outer side edges of said concaves.
Claim 10
Dependent Claim
79 words
The combine according to claim 3 in which said deflector members comprise sections arranged in longitudinal alignment with each other and extend along said grain pan from the forward end thereof adjacent the forward end of said threshing means toward the opposite end of said concave, and means detachably connecting said sections of deflector members to said grain pan for support thereby of a selected number of said sections in accordance with the type of crop material being harvested.
Claim 11
Dependent Claim
70 words
The combine according to claim 9 in which a plurality of divider members extend longitudinally of said grain pan and are fixed thereto, said divider members being spaced transversely across said grain pan between the opposite side edges thereof, and flanges being provided on the lower ends of said deflector sections connected to similar divider members spaced transversely on opposite sides of the central longitudinal axis of said grain pan.
Claim 12
Dependent Claim
59 words
The combine according to claim 10 in which a plurality of longitudinally extending slots limited length are formed in said flanges of said deflector sections, and bolts extending commonly through holes in said divider members and said slots in said flanges on said deflector sections to afford limited longitudinal adjustment of said sections with respect to said grain pan.
Claim 13
Dependent Claim
100 words
The combine according to claim 10 in which said divider members on said grain pan are arranged with one pair respectively adjacent opposite side edges of said grain pan and one divider member being connected to said grain pan centrally thereof, and a plurality of additional divider members being fixed to said grain pan respectively intermediately between said divider members adjacent opposite side edges of said grain pan and said central divider member, and the flanges of said deflector sections being connected to said intermediate divider members and extending upward and outwardly respectively in opposite directions from said divider members.
References Cited (Backward Citations)
US3626472A
Cited
US3742686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |