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| Number | Title | Issue Date |
| 7735654 | Screening arrangement A screening arrangement in a vibrating screen for screening of material, such as crushed stone, gravel or the like, the screening arrangement having directing means provided on top of the screening arrangement to direct the material to be screened, such that the dir... | 06/15/2010 |
| 6837380 | Low clearance dual-screen particle sorter An apparatus for sorting particles of a material such as concrete. The apparatus includes a frame and a drive assembly attached to the frame to induce gyroscopic vibratory motion of the frame in a selected rotational direction. Adjacent first and second inclined scr... | 01/04/2005 |
| 6193072 | Sifting machine with axial removal of screen, rotor, worm conveyor and drives for cleaning and maintenance A sifting machine comprises a stationary sifting basket, a rotor rotating within the sifting basket and a worm conveyor feeding into an end of the sifting basket for dosing and introducing the material to be sifted. The rotor and the worm conveyor are dri... | 02/27/2001 |
| 4956078 | Feed prestratification attachment for high efficiency vibratory screening A feed prestratification attachment for classifying materials is configured to be secured to a vibrating screen unit so as to encourage stratification and more even distribution of the incoming feed material. The attachment includes a pair of side adapter... | 09/11/1990 |
| 4900290 | Crop delivery system for an axial-flow combine A crop delivery system for an axial flow combine having a crop harvesting apparatus and a threshing apparatus including a rotor having an impeller at its forward end. The crop delivery system is interposed between the crop harvesting apparatus and the thr... | 02/13/1990 |
| 4645590 | Vertical type screening machine for granular material A vertical type screening machine for granular material comprises a housing. A rotary drum assembly is rotatably mounted within the housing and comprises a drum having a substantially vertical rotary axis and a helical blade helically wound around a circu... | 02/24/1987 |
| 4194970 | Method for screening particulate materials A method and apparatus for use in separating oversize from on size particles in a mass of particulate materials passed rapidly through a screening device includes a sloping screen mesh having sizing openings dimensioned to be larger than the desired maxim... | 03/25/1980 |
| 4126543 | Method and apparatus for screening particulate materials A method and apparatus for use in separating oversize from on size particles in a mass of particulate materials passed rapidly through a screening device includes a sloping screen mesh having sizing openings dimensioned to be larger than the desired maxim... | 11/21/1978 |
