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Comminuted material discharge permitting screen

Subclass of:

241 - Solid material comminution or disintegration

241000000 - APPARATUS

241068000 - With separation or classification of material

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
241069000 Comminuted material discharge permitting screen 34
20080223965Device for Chopping Food, in Particular Pieces of Ice - To provide a food chopper of simple design and high performance, a device (09-18-2008
20090184187CONCRETE CRUSHER - A centrifugal impact crusher, having a housing, a rotor having a shaft journaled to the housing and a plurality of spaced apart slots in each side of the shaft, a plurality of hammers or cutters pivotally attached to one side of each slot by pins with the pins lying along two axes running parallel to the shaft, each of said hammers pivotal from a position proximate said shaft to a position in which it extends outwardly away from the shaft. A slotted table is located on another side of the rotor having spaced apart arms, the slots allowing the hammers to pass through without hitting the arms and an exit for allowing crushed material to escape from the housing.07-23-2009
20100090041DRY PARTICLE SUPPLYING DEVICE FOR PARTICLE-SIZE MEASURING APPARATUS - A dry particle supplying device for a particle-size measuring apparatus for providing an elementary dispersion of dry particle samples into an elementary particle state during the initial introduction of the dry particle sample into the measuring apparatus. The device comprising a feeder unit, a separation unit, and a retention device. The feeder unit vibrating due to a vibration force which allows the separation unit adjacent the retention device to pulverize samples in aggregated groups into an elementary particle state.04-15-2010
20100270405Discharge from Grinding Mills - A screening element can be mounted at a discharge passage of a grinding mill chamber. The discharge passage is positioned in use to receive ground particles moving thereinto in a discharge direction. The screening element comprises one or more openings defined therein that are oriented such that ground particles pass therethrough in a direction that is oblique with respect to the discharge direction. The grinding mill chamber may form part of a centrifugal grinding mill.10-28-2010
20110036935AGITATOR MILL - An agitator mill has a grinding vessel and an agitator shaft arranged such that it can be driven to rotate therein. Fixed at the end of the agitator shaft is a last agitator disc, on which is fixed a substantially cylindrical cage having apertures. Arranged inside the cage is a screening device. The distance between a second to last agitator disc and the last agitator disc is such that a braided flow forms, while avoiding a preliminary screening of grinding stock on one hand and auxiliary grinding bodies and coarse grinding stock particles on the other hand. Formed in the last agitator disc are passages through which the grinding stock passes together with the auxiliary grinding bodies, at which time a separation of the auxiliary grinding bodies and the coarse grinding stock particles takes place within the separating chamber formed by the last agitator disc and the cage. Formed in the last agitator disc are depressions that promote the formation of a braided flow between the last agitator disc and an adjacent agitator disc.02-17-2011
20110186666MULTI-STAGE DISCHARGER FOR GRINDING MILLS - A pulp lifter assembly for a rotary grinding mill includes an outer pulp lifter having walls defining a pulp lifter chamber and an outlet opening for radially inward discharge of slurry from the pulp lifter chamber, and an inner discharger disposed radially inward of the outer pulp lifter and circumferentially offset from the outer pulp lifter. The inner discharger defines a passage for conveying slurry substantially radially inward. A transition discharger is disposed radially between the outer pulp lifter and the inner discharger. The transition discharger has a first wall bounding an interior space and a second wall dividing the interior space into first and second regions. The second wall includes a guide that bounds a channel connecting the outlet opening of the outer pulp lifter to the passage defined by the inner discharger.08-04-2011
20120067988SCISSOR TYPE HAMMER MILL - A scissor type hammer mill, mainly includes an inlet (03-22-2012
20120199678IMPROVEMENTS IN MACHINES FOR SHREDDING VARIOUS MATERIALS SUCH AS BLOCKS OF PLASTICS, WOOD RESIDUES, CARDBOARD PACKAGING AND SO FORTH - A machine for shredding various materials, such as blocks of plastics, wood residues, cardboard packaging, building materials and so forth, comprising a rotor constituted by a cylindrical roller and a plurality of shredding teeth, arranged in respective slots, which are provided in the surface of the roller and lie on radial planes which are perpendicular to the axis of rotation of the roller, the shredding teeth comprising cutting elements constituted by plates and blocks for fixing the plates and cooperating with stationary teeth arranged in a comb-like arrangement, the plates being arranged directly on the slots provided in the surface of the roller and the blocks being accommodated in cavities shaped like seats for a key, which are formed in the surface of the roller in line with the slots and lie at right angles to them, the blocks being fixed by means of screws so that they can be removed from the seats and protruding from the slots with a portion that acts for the plates as an element for abutment and fixing by means of screws.08-09-2012
20130015278Tobacco Grinder - The Santa Cruz Shredder incorporates a custom radial angular cutting tooth design. With this design the cutting and grinding of herbs creates a very fine grind. This tooth design allows for bidirectional cutting and grinding. The placement of the multiple cutting teeth on the Santa Cruz Shredder grinders has been strategically positioned for maximum grind efficiency.01-17-2013
20130200188SIZING SCREENS FOR COMMINUTING MACHINES - A grinder for grinding relatively loose materials includes a reducing unit and a screen arrangement. The arcuate screen defines a plurality of tracks of apertures that extend in a cutting direction of the cutters. In some cases, only one respective cutter passes over each track and each cutter passes over only the respective one of the tracks. The width of a cutter may be greater than a width of the apertures of a track. The apertures of the screen arrangement may form chevron patterns. The screens may be clamped to a frame by coupling members extending through notches in the screen.08-08-2013
20130200189DEFLECTION STRUCTURE FOR TUB GRINDER - A tub grinder includes a rotatable tub positioned above a floor; a grinder that has cutters defining a circular reducing boundary when the grinder is rotated in a reducing direction; and a deflection structure positioned near the floor above the grinder. The deflection structure includes first and second deflecting portions. The second deflection structure is oriented closer to horizontal than the first deflection structure. At least part of the second deflecting portion is located below a top, dead center of the reducing boundary of the grinder. The deflecting structure limits the trajectory of material ejected from the grinder to a departure angle of about 25 degrees.08-08-2013
20130206880SIEVE MILL WITH IMPROVED SIEVE RETAINING PROPERTIES - The invention relates to a sieve mill (08-15-2013
20130206881PULPER COMPRISING A SCREENING SHEET - An individual pulper is used and fibrous material is removed from the pulper in an optimum manner. In order to do this, the screening sheet of a pulper has openings which are disposed in various regions and have different sizes. The regions are concentric to each other.08-15-2013
20140138465PORTABLE GRINDER - A portable grinder may include a side cover having inner threads and a cover receiving space, said inner threads used to engage with middle inner threads of a middle piece; a first grinding piece, one side of which having a plurality of first grinding protrusions and a plurality of through holes scattered at various locations between the first grinding protrusions; and the other side having a screening unit; a middle piece adapted to receive the first grinding piece and connect to a second grinding piece through a bearing; and a second grinding piece having a plurality of second grinding protrusions facing the first grinding protrusions, wherein substances to be grinded are disposed in a second receiving space between first and second grinding protrusions, and the first and second grinding protrusions of the portable grinder are driven by gravity to spin to grind the substances therein.05-22-2014
20140175201Material Reducing Device - A material reducing machine includes a frame and a drum rotor which is mounted for rotation with respect to the frame. The drum rotor includes a generally cylindrical peripheral wall with a tool mounted thereon. The tool has a leading edge that defines an arc as the drum rotor is rotated, which arc is spaced outwardly from the peripheral wall and is parallel thereto. The machine includes a material input device for conveying material to be reduced towards the drum rotor, and an outlet for reduced material. A breaker bar assembly is located adjacent to the drum rotor. The breaker bar assembly includes a back plate with a plurality of breaker bars mounted thereon. The breaker bar assembly is located so that material which is carried by the tool of the drum rotor is directed against the breaker bar assembly.06-26-2014
20140217213HERB GRINDER - A shredder or grinder for dried material such as herbs of dried leaves comprises a cylindrical container formed of a top element and a base element forming a chamber, the top element and the base element each having a series of concentrically arranged teeth on a base plate, wherein the teeth that slidably engage one another in a slicing motion to form grinding surfaces against one another, wherein the teeth are serrated to efficiently grind the dried materials in the chamber when the teeth engage one another and are counter rotated relative to one another. In one embodiment the chamber discharges the ground contents through orifices in the base element, where the size is regulated by a screen, and in another embodiment, the ground contents remain in the chamber until the grinding head is removed.08-07-2014
20140263781BONE MILL ASSEMBLY FOR USE WITH CORTICAL AND CANCELLOUS BONE - A bone mill assembly provides a drive motor with a reducer. The drive motor is connected to a non-rotating coupler which is connected to a main drive cutting head. A mill housing consists of a manual feed chute or a pneumatic feed chute that shuttles the bone stock onto the main drive cutting head of the mill. The bone stock is ground to a smaller particle size and then shuttled by rotation onto a straight secondary blade. This chops the particle size even smaller and then is sized by an internal window sieve. If the particle size is small enough, the bone particulate passes through the sieve into a collection pan. If the particle size is too large, it will then be rotated back up within the housing to be processed again by the main cutting head. Different sizes of the main cutting head are used for customer specific applications.09-18-2014
20150028140DEVICE FOR BEVERAGE PRODUCTION - Device for producing beverages, compatible with any handheld domestic blender, which enables producing beverages either by crushing a solid element from which the juice is extracted and at the same time filtering the same or, enabling mixing a solid element with a liquid one at the same time that it is being filtered, the device comprises at least one filtering beaker (01-29-2015
20160114332MEDIA-AGITATION TYPE PULVERIZER - [Problem] To resolve segregation of grinding media to thereby enable a large-flow-rate circulation operation while reducing wear of an agitating member and a grinding media separating member. [Solution] In a media-agitation type pulverizer, the agitating means comprises; a circular plate-shaped hub member (04-28-2016
20160143480Manually Operable Herb Grinder - A manually operable herb grinder features a housing assembled from a plurality of detachable sections, including a drive section for housing drive components and one or more product chamber sections for containing a product. The product chamber is divided into input and output chambers for initially receiving unground product, and catching ground product falling from a grinding area intermediate the two chambers. Blades carried on a shaft in the grinding area are rotated by a planetary gear system, whose input is a rotatable cap installed over the drive section at a top end of the housing. The grinding area is situated between a spoked divider at an upper end of the input chamber, and a perforated divider at the upper end of the output chamber. The cap is rotatable by hand, or by frictional rolling contact against a surface.05-26-2016
20160144372Separating Device For A Ball Mill Or Agitator Ball Mill As Well As A Ball Mill Or Agitator Ball Mill With A Separating Device - A separating device for a ball mill or an agitator ball mill as well as a ball mill or agitator ball mill with a separating device, wherein the ball mill or agitator ball mill includes a cylindrical grinding container with a first end opening and a second end opening, wherein the first and second end openings can be closed by a first and a second closure device, wherein a ground stock inlet is arranged in the region of the second end opening and a ground stock outlet is arranged in the region of the first end opening and wherein the separating device is assigned to the ground stock outlet. The separating device includes a plurality of first and second screen segments with screen apertures, which are arranged in an alternating manner on a frame.05-26-2016
20160144374VALVE/MILL ARRANGEMENT - The present invention describes a valve/mill arrangement (05-26-2016
241070000 Screen partition or end wall in rotary drum 2
20140138466DISCHARGE GRATE ASSEMBLY - A discharge grate assembly for at least partially guiding slurry from a mill shell chamber toward a discharge trunnion thereof via a pulp lifter chamber. The discharge grate assembly includes a body having apertures for permitting the slurry to flow from the mill shell chamber into the pulp lifter chamber, and a shroud having a number of cover elements and a number of openings located at least partially therebetween. The shroud is movable relative to the body between an open position, in which the openings are at least partially aligned with at least preselected ones of the apertures to permit the slurry to flow therethrough into the pulp lifter chamber, and a closed position, in which the cover elements are at least partially aligned with at least predetermined ones of the apertures, to at least partially prevent the slurry flowing through the apertures back into the mill shell chamber.05-22-2014
20140353412HERBAL GRINDER AND RESERVOIR - An herbal grinder and reservoir having a conical shape wherein said herbal grinder comprises a top grinding cap and a grinding section comprising a plurality of grinding knives; and wherein said grinding section comprises a plate having a drop through pattern for allowing ground material to exit the grinding section and fall into the reservoir.12-04-2014
241073000 Arcuate screen concentric with rotary comminuting member 9
20090140088Selt-contained shredder assembly for reducing and sizing material - A shredder having a sizing chamber and a reducing chamber for sizing and reducing material.06-04-2009
20100147984ROTOR FOR TREE MULCHING MACHINE - A rotor assembly for a tree cutting attachment for a skid loader. The rotor assembly is made up of a central driven shaft journaled for rotation in the frame of the tree cutting attachment. Circular endplates are disposed proximately on the opposed ends of the central driven shaft. Two diametrically opposed rows of regularly spaced-apart semicircular support plates extend between the circular end plates. The semicircular support plates are held in parallel-spaced relationship by a plurality of equally circumferentially spaced bars extending between the endplates. Swinging hammers are mounted for free pivotal movement in an alternating pattern between the support plates. Each hammer includes a main shaft extending between the support plates, a body member pivotally connected to the main shaft at the pivot axis parallel to and spaced from the central driven shaft and a generally flat tooth member extending radially outward from the body member.06-17-2010
20100308144Material Reducing Apparatus Having Features for Enhancing Reduced Material Size Uniformity - The present disclosure relates to a material reducing machine including a rotary reducing component positioned at least partially within a reducing chamber. A sizing screen defines a portion of the reducing chamber and extends at least partially around the rotary reducing component. Material catches are disclosed for preventing elongated strips of material from snaking longitudinally through the sizing screen without being adequately reduced in length.12-09-2010
20120061498DEVICE FOR COMMINUTION OF FEED MATERIAL - A device for comminuting feed material is provided that has a housing including longitudinal walls and transverse walls for accommodating a rotor that rotates about a longitudinal axis. The rotor is equipped about its circumference with processing tools, and has, on its faces, an annular disk, each of which is concentric to the longitudinal axis. Within the housing, at least one screen path extends over a part of the circumference of the rotor, each screen path running at a slight radial distance from the annular disks while forming a seal gap. The feed material is supplied to the rotor through a feed shaft and is directed out of the device via a material discharge extending downstream of the screen path. In order to return material that emerges through the seal gap to the remaining material flow annular disks are each arranged with an axial clearance A from the transverse walls.03-15-2012
20130161427APPARATUS FOR COMMINUTING FIBROUS MATERIALS - The present disclosure relates to a comminution apparatus including a rotational reducing unit that is rotatable about an axis of rotation. The rotational reducing unit includes a plurality of material reducing components that are mounted to a carrier. The material reducing components are rotated by the carrier in a first direction about the axis of rotation. The comminution apparatus also includes a screen at least partially surrounding the rotational reducing unit. The screen defines a plurality of sizing slots that have slot lengths and slot widths. The slots are elongated along the slot lengths such that the slot lengths are longer than the slot widths.06-27-2013
20130161428REDUCING COMPONENT FOR A COMMINUTION MACHINE - A reducing component is disclosed herein. The reducing component includes a block-style reducer including a height, a width and a depth. The block-style reducer includes first and second ends separated by the height, first and second sides separated by the width and front and back sides separated by the depth. The block-style reducer also includes a first reducing edge that extends across the width of the block-style reducer at a location adjacent to the first end of the block-style reducer. The reducing component also includes a blade-style reducer that projects forwardly from the block-style reducer at a location adjacent the second side of the block-style reducer. The blade-style reducer includes a second reducing edge that extends primarily along the height of the block-style reducer.06-27-2013
20140117129Rock Breaker - In one preferred form of the present invention, there is provided a rock breaker 05-01-2014
20150115083RECYCLING MACHINE - A recycling machine comprises a machine body, a rotary mechanism and a cutting wheel assembly. The cutting wheel assembly includes a front cutting wheel and a rear cutting wheel that are coupled with a rotary assembly to rotate in a same direction. The front and rear cutting wheels have respectively front and rear cutters that are arranged in rows and rotated at different speeds in the same direction to shear against each other. The front cutters rotating at a slower speed shear garbage bags first, and the shorn garbage bags are then squeezed in first and second movement spaces formed between first and second filter meshes and the front and rear cutting wheels and carried to the front and rear cutters to be shorn again, such that trashes in the garbage bags fall through first and second meshes of the first and second filter meshes to be collected.04-30-2015
20160158762Rock Breaker - In one preferred form of the present invention, there is provided a rock breaker 06-09-2016
241074000 Annular screen above or surrounding comminuting zone 1
20100025508Rotary tumbler and metal reclaimer - A rotary tumbler metal reclaimer includes an inner cylinder and a concentric outer cylinder that rotate simultaneously. The inner cylinder includes a first compartment that intakes material for breaking by teeth, a second compartment that receives broken material from the first compartment and crushes the material into smaller particles, and a third compartment wherein particulate material enters the space between the inner cylinder and the outer cylinder by attrition through perforated screens. The second compartment includes a crusher having various features for crushing lump material as it rotates. The third compartment provides further breakage and conveyance of particulate material. Particulate material then returns proximate the intake for screening into fine and coarse sizes and then collecting for reuse. Metallics and metallic oxides exit the tumbler through apertures in the rear of the third compartment for collection. The tumbler reclaims metals, metallic oxides, sands, and other materials for reuse.02-04-2010
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