Patents for B07B 1 - Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like (18,540)
09/1989
09/19/1989US4867866 Municipal waste processing apparatus
09/19/1989CA1259465A1 Process for the manufacture of screen components of various lengths for system screening decks and screen component
09/13/1989EP0332195A2 Drum separator
09/08/1989WO1989007989A1 Method and apparatus for screening granular material
09/06/1989EP0330846A2 Plansifter
09/06/1989CN2043897U Handcar-type separate sand machine with osillating screen
09/05/1989US4863589 Elongated member and cover for use with sizing screen
08/1989
08/29/1989US4861463 Vibratory screening machine
08/29/1989US4861462 Method of forming sieve unit for screening machine
08/29/1989US4861461 Pipeline padding machine and method
08/23/1989CN2043138U Automatic vibrating-screening machine
08/23/1989CN2043135U Beaded agarose gel screening grader
08/17/1989DE3803804A1 Method for comminuting ceramic catalyst bodies, in particular from motor vehicle exhaust systems
08/16/1989EP0328067A2 Machine and method for sorting out fines and over-thick wood chips
08/16/1989EP0327564A1 Vertical screening device.
08/16/1989CN2042755U Movable raw coal grader
08/16/1989CN2042754U Octagonal screening machine
08/15/1989US4857180 Rotating disc screen
08/15/1989US4857176 Reinforced molded polyurethane vibratory screen
08/15/1989US4856171 Method for applying a fabric material to a frame
08/15/1989CA1258451A1 Device for driving a body that performs a tumbling and rotating movement
08/09/1989CN2042380U Low-noise plane circular screening machine
08/08/1989US4855039 Vibrating screen
08/02/1989CN2041980U Complex-frequency rotary vibration sieve
07/1989
07/27/1989WO1989006572A1 Nozzle for screen apparatus
07/26/1989EP0325554A2 Automatic chip classifier and system
07/26/1989EP0325253A2 Drum screen
07/26/1989CN2041595U Slot vibration sieve
07/26/1989CN2041594U Portable efficiency vibration sieve
07/26/1989CN2041593U Spiral screening machine
07/25/1989CA1257849A1 Screening apparatus for fiber suspensions
07/19/1989CN2041212U Dual-purpose screening machine for chinese chestnut
07/19/1989CN1033951A Combined screening and crushing machine for clinkered garbage
07/18/1989US4848607 Classifier
07/11/1989US4846971 Sieves for scrubbers and their method of manufacture
07/11/1989US4846352 Screen clamp
07/11/1989US4846282 Machine to restore railway road beds with a continuous endless-conveyor riddle
06/1989
06/29/1989DE3827256C1 Feed drum for a cutting-off unit
06/28/1989CN2040139U Mud heavy-making agent an vibrating screen for recovering mud liquid
06/28/1989CN2040008U Dual-direction half-spiral vibrating fine screen
06/27/1989US4842722 Pressure sorter
06/27/1989CA1256273A1 Device and method for the production or release and separation of substances or particulate products of fluid, plastic or solid materials and use of the device
06/21/1989CN2039601U 静态振动筛 Static shaker
06/21/1989CN2039600U Taper vibration fine sieve
06/20/1989US4840728 Vibrating screening apparatus
06/20/1989US4840727 Double bank grain cleaner and aspirator therefor
06/15/1989WO1989005200A1 Self-cleaning screening device
06/13/1989US4839036 Vibratory screening machine
06/13/1989US4839035 Cylindrical screen separator with spirally arranged clearing and conveying blades
06/13/1989CA1255631A2 Shaker screen
06/06/1989US4836915 High flow capacity barrier type screening apparatus
06/06/1989US4836388 Apparatus for separating material by length
06/06/1989US4836385 Vibratory screening machine
06/01/1989WO1989004803A1 Device for feeding and dosing bulk material
05/1989
05/31/1989CN2038542U Device for prolonging service life of vibration sieve screen
05/24/1989EP0316614A1 Basket-frame unit for continuous endless-conveyor riddle
05/24/1989EP0316570A2 Screen drum and method of manufacturing same
05/24/1989EP0316461A1 Vibratory screen
05/24/1989EP0316328A1 Improved screen construction
05/24/1989DE3738746A1 Sieve basket and method for its production
05/24/1989CN2038099U Screw separating conveyor
05/23/1989US4832834 Elastomer sieve screen
05/10/1989EP0314853A1 Self-propelled machine for separating solid or fibrous deposits from sands and the like, specifically designed for cleaning beach sands
05/10/1989CN2037427U Automatic coal-feeding device for boiler
05/09/1989US4828690 Hand tool for sifting debris from sand and soil
05/03/1989CN2036870U Protector for running of square screen
05/02/1989US4826017 Vibrating screen
04/1989
04/26/1989CN2036453U Low-noise vibration screen
04/25/1989US4824559 Rotary air separator
04/20/1989DE3803621C1 Method for coating metallic conveying surfaces in vibrating conveyors or vibrating screens
04/19/1989CN2036068U Moveable multiple purpose drum-type sieve
04/18/1989CA1252757A1 Apparatus and a method for separating one solid component from another solid component in suspension in a liquid
04/12/1989CN2035660U Vertical pressing structure for screen
04/11/1989US4820407 Solids screens
04/11/1989US4819810 Screening machine with floating eccentric shaft
04/11/1989US4819809 Reinforced polyurethane vibratory screen
04/11/1989CA1252424A1 Five stage internal cell separator
04/05/1989EP0310009A2 Hand screen, particularly a flour screen
04/05/1989CN2035279U Multi-action inertia resonant probability screen
04/05/1989CN2035278U Strong-power screen selector
04/04/1989US4818379 Screening apparatus with integrated distributing and segregating device
03/1989
03/29/1989CN2034873U Electromagnetic rotational flow vibration sifter
03/28/1989US4816153 Frame member for pressurized screening device
03/28/1989US4816144 Sieving apparatus
03/28/1989CA1251741A1 Rotary screen
03/23/1989WO1989002311A1 Device for handling goods
03/22/1989CN2034479U Heavy probability screening
03/21/1989US4814071 Flexible connector for screening machine
03/16/1989DE3816214A1 Drehsieb Rotary screen
03/16/1989DE3800816C1 Compost screening machine
03/15/1989CN2034091U Takeup device for round shaking screen mesh
03/14/1989US4812229 With spaced depressions having angled slits in base; for screening fiber suspensions in paper making
03/14/1989US4811918 Method and apparatus for installing continuous lengths of material
03/14/1989CA1251169A1 Strain cage for gravity flow system
03/09/1989WO1989001816A1 Water clarification system adapted for removing particulate matter of greater than a predetermined size
03/07/1989US4810372 Dry material separator
03/07/1989US4809791 Removal of rock cuttings while drilling utilizing an automatically adjustable shaker system
03/01/1989CN2033304U Flexible sieve
03/01/1989CN2033298U Combination high-frequency vibration sieve for dry or wet material
02/1989
02/28/1989US4807487 Mass-compensation oscillating drive for oscillatory machines