Patents for B07B 1 - Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like (18,540)
12/1979
12/25/1979US4180458 Vibratory screen having noise level reduction by isolation
12/18/1979US4179363 Separates shelled grain from unshelled grain
12/11/1979US4178238 Apparatus for processing low-grade aggregate ore
12/11/1979US4177900 Grain scalping and cleaning apparatus and method
12/04/1979US4176799 Rotary screens
12/04/1979CA1067268A1 Method of casting plastic screen and metal reinforced plastic screen
11/1979
11/14/1979EP0005332A1 Sieving device
10/1979
10/30/1979US4172528 Apparatus for selecting tablets
10/30/1979CA1065279A1 Elastomer plaquet units for shaker-screen bodies
10/18/1979WO1979000812A1 Apparatus for separating fine material from coarse material
10/16/1979CA1064428A1 Stationary cylindrical screen for liquid suspensions including a heavy impurities trap and dilution means
10/09/1979US4170549 Vibrating screen apparatus
10/02/1979US4169788 Screening machine
09/1979
09/18/1979US4168034 Apparatus for recycling non-reuseable wooden packing and handling units containing pieces of ferromagnetic metal
09/18/1979US4167975 Beach cleaning apparatus
09/11/1979US4167478 Universal modular screening, classifying, cleaning and sizing machine
09/11/1979CA1062174A1 Traveling band screen
08/1979
08/23/1979WO1979000547A1 Stationary enclosed cylindrical screen with rotating agitators
08/21/1979US4165280 Automatic and continuous operation using a plurality of brushes
08/14/1979CA1060246A1 Air dome attenuator
07/1979
07/31/1979US4162968 Screen apparatus for sorting fragmented material
07/31/1979US4162967 Archaeological sifting basket
07/31/1979US4162752 Rotating drum spreader
06/1979
06/14/1979WO1979000341A1 Industrial screen for preparation of loose material
06/12/1979US4157956 Materials handling
06/05/1979US4157423 Battery containing an alkaline electrolyte
06/05/1979CA1055893A1 Moulded interchangeable plastic screen components
05/1979
05/29/1979CA1055431A1 Feeding and discharge conduits for multiple screens
05/22/1979US4155840 Particularly for wood chips
05/22/1979CA1054780A1 Spring retaining clip for vibrating screen deck
05/15/1979US4154407 Reducing drum for the extraction of cellulosic matters
05/01/1979US4152256 Spring retaining clip for vibrating screen deck
05/01/1979US4152255 Vibratory material handling apparatus including screens
05/01/1979US4152253 Screen rotation; anticlogging
04/1979
04/24/1979US4150750 Apparatus for processing vegetable material
04/10/1979US4148724 Wedge-type tensioning rail construction for electrically heated screens
04/10/1979US4148398 Roller screen
04/03/1979US4147256 Worm harvesting apparatus and method
03/1979
03/27/1979US4146483 Vibrating screen
03/21/1979EP0001172A1 Apparatus and method for classifying heterogeneous solids
03/13/1979US4143769 Apparatus for sorting and separating discrete articles
02/1979
02/27/1979US4141821 Screening deck assembly
02/27/1979US4141451 Chip thickness classifier
02/20/1979US4140630 Sorting apparatus for fragmented materials
02/13/1979CA1048419A2 Rotating radial screen filter
02/06/1979US4138017 Device for selecting and removing unsatisfactory capsules before filling satisfactory capsules with chemicals
01/1979
01/30/1979US4137157 Screen tension assembly for vibratory screening apparatus
01/30/1979CA1047443A1 Nestable sifters having a mechanical clearer
01/23/1979US4136022 Nestable sifter
01/23/1979US4135388 Method and apparatus for automatically fractionating a sample of particulate material into discrete size fractions
01/23/1979CA1046989A1 Angularly adjustable bent screen classifying and dewatering device
01/09/1979US4133751 Wire screen with tensioning assembly
12/1978
12/26/1978US4131201 Continuous belt aggregate separator
12/19/1978US4130479 Replaceable liner for centrifuge sieve
12/19/1978US4130478 Bowl shaped screening apparatus
12/19/1978CA1044650A2 Protective coverings for screen supports
11/1978
11/21/1978US4126543 Method and apparatus for screening particulate materials
11/21/1978US4126541 Apparatus and method for refining asbestos dispersions
11/21/1978US4126513 Paper making machine screen
11/07/1978US4124498 Semi-cylindrical oscillating sifter
10/1978
10/31/1978CA1041466A1 Hopper apparatus
10/24/1978US4122006 Anti-clogging
10/17/1978US4120785 Rubber screens for vibratory screening apparatus
10/17/1978US4120784 Screening apparatus
10/10/1978US4119534 Multiple deck trommel screen
09/1978
09/26/1978US4116824 Automated wet sieving apparatus
09/26/1978CA1039237A1 Two-stage wood-chip drum-screen with dust removal
09/19/1978US4115507 Manufacture of abrasion-resistant screening apparatus
09/19/1978US4115257 Grain cleaner
09/19/1978CA1038650A1 Two mass vibratory material handling apparatus and methods of manufacturing and fine tuning the same
09/05/1978US4111799 Stock screen foil
08/1978
08/15/1978US4107035 Three-plane balance gyro sifter
08/01/1978US4104737 Mixer apparatus
07/1978
07/25/1978USRE29709 Apparatus for cooling castings and for cooling and drying moulding sand
07/25/1978US4102502 Concentration of plate-shaped minerals
07/04/1978US4098685 Apparatus and method for separating lead battery materials
06/1978
06/27/1978US4097374 Screening apparatus hydrofoil
05/1978
05/16/1978US4089777 High capacity separator for semolina
05/09/1978US4088570 Tomato harvester separator
04/1978
04/18/1978US4085040 Front feed static screen
04/18/1978US4084446 Vibratory machine
04/11/1978US4083775 Screening device, railroads
04/04/1978US4082657 Separator apparatus
03/1978
03/14/1978US4078995 Earthworm harvesting apparatus
03/07/1978US4077873 Vibratory separator
02/1978
02/21/1978US4075088 Apparatus for grading objects according to size
02/21/1978US4075087 Continuous grader for fruits or the like
01/1978
01/24/1978US4070202 Method and apparatus for separating solid materials
01/10/1978USRE29512 Vibratory material handling device with variable force
01/10/1978US4067800 For fibers in liquid suspensions
12/1977
12/27/1977US4065382 Multiple screen apparatus
12/20/1977US4064051 Elastic transporting, sieving or filtering base with swinging drive
12/13/1977US4062769 Elastomer screen units for shaker-screen bodies
12/13/1977US4062768 Sieving of materials
11/1977
11/08/1977US4057492 Adjustment of motion of screening machine
09/1977
09/20/1977US4049124 Sorting machine for elongated articles
08/1977
08/23/1977US4043901 Wood chip screens
08/09/1977US4040952 Traveling band screen
08/09/1977US4040951 Apparatus for retaining and readily releasing a shaker screen
08/09/1977US4040303 Two mass vibratory material handling apparatus and methods of manufacturing and fine tuning the same