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Class 460/101 - Sieve or grate


Subclass of Class 460 - Crop threshing or separating
Definition: Subject matter consisting of sections or slats made of corrugated
No. of patents: 80
Last issue date: 08/16/2011


  2  
NumberTitleIssue Date
6106389Straw walkers having a supplementary separator
A supplementary separator for a combine having straw walkers. The supplementary separator comprising a rotor transversely arranged above the straw walkers. The rotor is provided with a rotatable housing having an eccentric axle located therein. A pluralit...
08/22/2000
6066045Combine tray lift
A combine tray lift system for selectively positioning a combine tray includes a pair of tray lift assemblies attachable to combine tray securing nuts on opposite sides of a combine. Each tray lift assembly includes a rotatable sleeve having a handle, a p...
05/23/2000
6056639Cleaning means for a combine harvester
An agricultural harvesting machine having a threshing and separating mechanism for threshing and separating crop material; and cleaning mechanism for cleaning the threshed and separated crop material. The cleaning mechanism comprising: a grain pan for rec...
05/02/2000
6053812Sieve construction for a combine harvester
A sieve for use in a combine harvester includes a plurality of longitudinal parallel rails lying in a common plane of the sieve including two spaced side rails and at least one intermediate rail. Each rail has a row of holes supporting a plurality of para...
04/25/2000
5984777Remote combine sieve adjuster
The present invention has a wrist connector connected to a conventional slat connection member. An electrically activated liner actuator which includes a linearly movable shaft is connected to the wrist connector to move the slat connection member fore or...
11/16/1999
5830061Combine harvester
An automotive combine has a frame adapted to move in a travel direction along the ground, a front housing pivotal on the frame, a cutter on the front housing for cutting standing crop, and a main thresher on the front housing having a front intake and a r...
11/03/1998
5791986Combine ripple pan
The invention provides an improved ripple pan which compensates for the over-deposition of threshed grain onto the outer portions of the grain pan by channeling the grain to the center of the pan. The pan has a central section with ripples that are perpen...
08/11/1998
5588912Sieve for harvesting machines
A sieve for separating grain crops from a chaff-straw mixture, used in agricultural harvesting machines, particularly harvester threshers and which is passed from below by a blower wind current includes alternating elongated grooves and channels aligned i...
12/31/1996
5527219Cleaning sieve for the harvested crop of agricultural machines
A cleaning sieve assembly disposed at the end of and below a transporting conveyor of the harvested crop in the harvesting machine includes an upper or shaff sieve and a lower sieve both subjected to an air current blown from a blower. The upper sieve inc...
06/18/1996
5525108Cleaning system for an agricultural combine
An agricultural combine cleaning system including a cleaning sieve having a series of generally parallel slat rows arranged in at least first and second cleaning sections. A first series of passages is provided between adjacent slat rows of the first clea...
06/11/1996
5497605Header and feeder for a grain combine
A grain combine according to the present invention includes a header having two sickles which extend on opposite sides of the combine for severing crop from a field, and two augers which extend on opposite sides of the combine for moving crop inward to ce...
03/12/1996
5466190Precleaner for a cleaning shoe
The cleaning assembly of the present invention is provided with a precleaner. The precleaner precleans and directs the chaff rich mixture from the separating assembly to the chaffer downstream from where the grain rich mixture from the threshing assembly ...
11/14/1995
5462174Sieve apparatus for combine
A sieve assembly for combine includes a frame having side frame and divider members, a wire rotatably supported and extending transversely between the side and divider members. The wire has a majority portion and offset portion and at least one slat mount...
10/31/1995
5403235Device for separating and screening of bulk materials and a self-propelled combine with such a device
The device for separating and screening bulk materials, in particular crop materials, is formed by a zig-zag separator (9) with separation conduits (14) which are diverted once or several times in the vertical direction and through which a separator air s...
04/04/1995
5176574Combine cleaning system
A combine cleaning system including a fan and a cleaning sieve which coact with each other to separate chaff and unthreshed tailings from grain. The sieve defines a grain cleaning area comprised of an air foil section extending rearwardly from a forward e...
01/05/1993
5085616Cleaning system for a combine
A cleaning system for a combine including a fan and reciprocal sieves mounted within a housing of the combine. The sieves include a series of transversely extending slats which are selectively adjustable to allow clean grain to pass therethrough. A plural...
02/04/1992
5041059Cleaning system for a combine
A cleaning system for a combine including at least one sieve located in a housing of the combine such that a flow of air from a fan mechanism is directed upwardly therethrough. The sieve includes a plurality of louvers which are are arranged relative to e...
08/20/1991
4906218Distribution trough extensions for agricultural harvester
The threshed material passing through the foraminous cage and concave of the processor section of the combine falls by gravity to a distribution auger in a trough at the bottom of the processor housing. The threshed material passes through a slot in the t...
03/06/1990
4897072Apparatus for adjusting the sieve of a combine harvester
A combination harvester of conventional type includes a reciprocating sieve onto which the grain and chaff is deposited for separation by differential response to air flow passing through openings in the sieve. The openings in the sieve can be adjusted by...
01/30/1990
4897071Combine harvester cleaning apparatus
A combine harvester having a threshing and separating mechanism and a grain cleaning mechanism disposed beneath the threshing and separating mechanism and including a grain pan fitted with a movable divider apparatus and operable to receive grain from the...
01/30/1990
4863415Combine harvester cleaning apparatus
A combine harvester, having threshing and separating means for threshing and separating crop material and a cleaning apparatus disposed to receive threshed and separated grain from said treshing and separating means and being operable to clean unwanted re...
09/05/1989
4736753Arrangement for uniform distribution of agricultural products in self-propelled harvester threshers, and harvester thresher provided therewith
In a harvester thresher an arrangement for uniform distribution of agricultural product on a reciprocating transporting and cleaning organs of a sieve conveyor includes an upper sieve of a sieve box which is formed so that it has a transporting component ...
04/12/1988
4733672Separating and cleaning arrangement for a self-propelled harvester thresher
A separating and cleaning arrangement for a self-propelled harvester thresher, comprises a stationary housing extending in a traveling direction and provided with an inlet and outlet opening, and a rotor driveably supported in the housing and having a cas...
03/29/1988
4723558Attachment for the cleaning sieve of a combine harvester
A combine harvester in the area of the grain pan and cleaning sieve which generally reciprocate longitudinally is modified by the provision of a pivot bar beneath the discharge end of the pan and carrying fingers projecting over the sieve. The pivot bar r...
02/09/1988
4712568Combine sieve adjustment mechanism
An adjustment mechanism to affect a change in the size of openings through a sieve in a combine harvester is disclosed wherein the handle for actuating the sleeve adjustment is positioned above the surface of the sieve to permit an ease and convenience of...
12/15/1987
4693259Self-propelled harvester thresher
A self-propelled harvester thresher has a threshing and separating mechanism, a flat sieve device, and a sieve drum for the straw-chaff-grain mixture located between the threshing and separating mechanism and the flat sieve device, wherein the sieve drum ...
09/15/1987
4646757Harvester-thresher
In a combine harvester which conveys the straw which has been separated from grain to the rear outlet by means of a shaker, and wherein grain which is still present is fed to a sieve box, the straw is supplied to cutter means for comminuting purposes, sai...
03/03/1987
4600019Corn cob saver sieve for combines
The adjustable chaffer and lower sieve of a combine harvester are replaced by a cob catcher or cob-saving sieve which allows corncobs along with shelled corn to be recovered as a mixture from the harvester rather than separating the corn from the cobs and...
07/15/1986
4561972Combine sieve plate
A grain harvesting combine is provided with an improved sieve plate for more efficient cleaning of the grain. The sieve plate is mounted on the combine adjacent the rearward end thereof and is substantially rectangular in shape. The sieve plate has forwar...
12/31/1985
4535787Axial flow combine
A combine for harvesting and threshing grain has features to prevent grain and time wastage even if the combine is tilted sideways, and other features to simplify the threshing equipment. The combine has a sieve housing that is mounted on rollers to the f...
08/20/1985
4515276Separation devices employing forced air through conveyor belt means
A gravity separator device for field use in separating material comprising spurious matter and harvested products employing airflow through a grid-like conveyor belt moving upward while inclined to the horizontal for reducing the friction between the conv...
05/07/1985
4511466Chaffer slat
An improved slat for harvester sieves and chaffers comprising a blade of single thickness from the finger tips to the bottom edge of the angularly disposed air blast baffle and wherein the blade is shaped at the upper end of the baffle to provide a longit...
04/16/1985
4502493Infinite adjustment means for sieve and chaffer slats
An adjustment means for the slats of sieves and chaffers comprising a manually operable screw mounted on a mounting plate fixed to the chaffer frame and directly connected with the conventional slotted bar for oscillating the slats to clean them and for s...
03/05/1985
4464887Method of cleaning threshed grain in a combine
A method for cleaning threshed grain in a combine harvester is disclosed wherein the threshed grain is conveyed into a cleaning cylinder that is rotatably driven at a sufficient speed to impart centrifugal forces on the threshed grain to urge the grain th...
08/14/1984
4425925Harvester thresher
A selfl-propelled, vibration-free harvester has a threshing device including a threshing drum and a threshing basket associated therewith, a separating device located downstream of the threshing device as considered in a transportation direction and inclu...
01/17/1984
4401128Grain loss reduction kit
A grain conserving kit for combines. The invention includes a rigid, notched transfer plate which is interposed between a combine cylinder thresher and the straw walkers in replacement of the conventional fingers assembly. The reduced width finger replace...
08/30/1983
4355647Device for distributing screen material
A combined harvester has a sieve box having a receiving plate for receiving the grain threshed by the combined harvester and at least one sieve receiving the grain from the receiving plate, a drive operatively connected to the sieve box for oscillating th...
10/26/1982
4259829Combine harvesters
The invention seeks to reduce loss in combine harvesters by monitoring the distribution of crop material over the grain cleaning mechanism and taking corrective action when the distribution is unfavorable such as by adjusting one or more components of the...
04/07/1981
4017206Winnowing blower for combine harvester-thresher
A winnowing blower for discharging a stream of air over the sieve of a combine harvester-thresher has an axially elongated housing formed at each of its axial ends with an inlet opening provided with an axial-flow fan. A shaft passing axially through the ...
04/12/1977
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