Patents for B07B 1 - Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like (18,540)
03/1982
03/23/1982US4321134 Method of and sorting assembly for dry sorting granular mixtures of two or more polydispersed components
03/23/1982CA1120436A1 Screen cloth with endless roller-chain-type clearer operating thereunder
03/16/1982US4319993 Large-capacity power screen
03/16/1982US4319992 Material separating machine
03/16/1982US4319991 Material separating machine
03/16/1982US4319990 Apparatus for the dry cleaning of grain
03/16/1982CA1120009A2 Pressurizing light inspecting and sorting of can bodies
03/16/1982CA1119784A1 Inclined separation screen for agitation tank
03/10/1982EP0047041A2 Device for picking up elements, for example, of a pavement
03/09/1982US4318805 Screening apparatus
03/02/1982US4317728 Wobble centrifuge
03/02/1982US4317714 Method and apparatus for dividing a mixture of pieces or fragments of different materials and having different sizes into two or more fractions
02/1982
02/23/1982US4316543 Sieving roller conveyor for green pellets
02/16/1982US4315817 Vibrating surface apparatus
02/02/1982US4313992 Centrifuge screen
02/02/1982US4313823 Sieve device for separating a mixture of particulate material in components of different sizes
02/02/1982US4313574 Apparatus for the activation of cement
01/1982
01/26/1982US4312750 Grain cleaning apparatus
01/26/1982US4312749 Trailer mounted, portable coal washing and separating apparatus
01/19/1982US4311242 Bearing cartridge supports for roll screens and the like
01/19/1982CA1116437A1 Directional-action mechanical vibrator and a mechanical system for converting rotary motion into reciprocating motion
01/12/1982US4310412 Method for classification of coals for coke production
01/12/1982CA1116125A1 Rotating disc apparatus for selective sorting of material chips
12/1981
12/30/1981EP0042742A1 Apparatus for screening paper fiber stock
12/29/1981US4308135 For separation of particulate material of different sizes
12/29/1981US4307808 Apparatus for refining herbage
12/16/1981EP0041659A1 Process for the diminution of zeolitic sodium-aluminium silicate particle sizes
12/01/1981US4303509 Separating apparatus
12/01/1981US4303508 Screening device
12/01/1981US4303507 Scraper-sifter and distributing device
12/01/1981US4303506 Separation of particulate minerals
11/1981
11/24/1981US4301930 Disk screen, modular disk assembly and method
11/17/1981US4300445 Apparatus for separating fines from whey
11/10/1981US4299695 Rock grader with tilting sorter screen
11/10/1981US4299283 Strip structure for well screen
11/03/1981US4298464 Rock separator
10/1981
10/28/1981EP0038554A1 Grid to sieve and sort particulate matter
10/27/1981CA1111382A1 Looped-wire screen panel with depending rib member
10/20/1981US4295918 Apparatus for assembling a plastic mining screen
10/20/1981US4295300 Flap arranged on discharge and separating devices of vibratory abrasive containers
10/20/1981CA1111004A1 Apparatus and method for refining asbestos dispersions
10/13/1981US4294692 Drum-type screening machine and method of operation
10/07/1981EP0037042A1 Sorting drum for seeds and other corns
10/07/1981EP0036858A1 Sifter plate.
10/06/1981US4293407 Sieve device for separating a mixture of particulate material in components of different sizes
10/06/1981CA1110214A1 Reducing drum for the extraction of cellulosic matters
10/01/1981WO1981002695A1 Cylinder for different kinds of seeds
09/1981
09/30/1981EP0036486A1 Screen panel assembled by modular elements
09/29/1981US4291808 Roller conveyor-classifier
09/15/1981US4289614 Sprouting beans refinement apparatus
09/08/1981US4288320 Vibrating screen with screen deck unclogging mechanism
09/08/1981US4288316 Fecal examining device
09/08/1981US4287779 Directional-action mechanical vibrator and a mechanical system for converting rotary motion into reciprocating motion
09/03/1981WO1981002398A1 Self cleaning,perforated plate for oscillating sieve
09/02/1981EP0034980A1 Cleaners, conveyors, graders and classifiers for vegetables or fruits
09/02/1981EP0034780A2 Rotating sorter
09/01/1981US4287066 Sieve having substantially plane sieve sheets and a method for its manufacture
09/01/1981US4287064 Brush driving apparatus for a solid-liquid separation screen
09/01/1981US4287056 Vibratory
08/1981
08/18/1981US4284500 For separating oversized particles from pressurized fluid slurry, cleaning of filter while system is sealed
08/18/1981CA1107243A1 Spring-loaded screen clamping system in a vibratory sifting machine
08/11/1981US4283285 For making ore pellets from sludge
08/11/1981US4283278 Nondeforming; for separation
08/04/1981US4282090 Screen
08/04/1981US4281764 Sorting apparatus for potatoes and the like
07/1981
07/28/1981US4280900 Rotary seed cleaner
07/22/1981EP0032436A1 Screening apparatus
07/21/1981CA1105413A1 Centrifugal screening apparatus
07/15/1981EP0031820A1 Grading plant.
07/14/1981US4278543 Rotary sieve for separation of solids from liquids
07/14/1981US4278535 Screen decks
07/14/1981CA1104987A1 Rotating screen for the separation of waste packing materials through differential comminuting and calibration
07/14/1981CA1104981A1 Grain cleaner
06/1981
06/30/1981US4276159 Apparatus for screening paper fiber stock
06/30/1981US4276158 Screen for a screening machine
06/30/1981US4276157 Vibratory
06/30/1981CA1104108A1 Inclined elastomer isolating members for vibratory machines
06/30/1981CA1104095A1 Improved wire bearing and tensioning means for sifter frames
06/23/1981US4274953 Vibrating screen separator
06/09/1981US4272366 Heavy duty two mass vibratory machine
06/02/1981US4271011 Flour sifter
06/02/1981CA1102282A1 Snap-fitting screening module for longitudinal supports
05/1981
05/26/1981US4269704 Screen for particle separation
05/26/1981US4269703 Screening machine
05/26/1981CA1101798A1 Pendulum-type underscreen vibration activated clearers
05/20/1981EP0028792A2 Multi-deck screening machine
05/19/1981US4268381 Rotary pulp screening device of the vertical pressure type
05/19/1981CA1101356A1 Cleaning attachment for grain augers
05/12/1981US4267037 Apparatus for separating waste material contained in a heap
05/12/1981US4266676 Apparatus for separation of material of heterogeneous character
05/12/1981CA1100912A1 Interdigitating rotating disc screen
05/05/1981US4265742 Screen element
05/05/1981US4265738 Cleaning and/or grading machine for free-flowing materials
05/05/1981US4265408 Sorting machine
05/05/1981CA1100445A1 Rotating broadcaster and spray spider for bowl shaped screens
04/1981
04/28/1981US4264438 Screen drum and a method for its manufacture
04/28/1981US4264437 Method and apparatus for pressure screening fibrous suspensions
04/22/1981EP0027297A1 Sieve device for separating a mixture of particulate material in components of different size
04/22/1981EP0027296A1 A sieve device for separating a mixture of particulate material in components of different sizes
04/21/1981US4262750 Shaker chain drive assembly for tomato harvester or the like