Class 241/189.2 - Reversible rotary mill

Subclass of Class 241 - Solid material comminution or disintegration
Definition: Apparatus wherein the rotary striking member is adapted
No. of patents: 25
Last issue date: 10/23/2007

Number	Title	Issue Date
7284345	Milling device for floors, rock, excavated material or other material The milling apparatus (1) has a bucket with a receiving chamber and has a milling unit with a milling rotor (14). The receiving chamber has a receiving opening (4) and is embodied as a bucket (2). On the bottom of the bucket (2), a...	10/23/2007
7140568	Multi-sided shaft for a crusher A shredder, crusher, hammermill, ringmill or the like is provided with a multi-sided rotor shaft to which spider arms and hammers are mounted. The rotor shaft has at least one pair, and preferably two or more pairs, of opposing sides. The hammers are pivotally mount...	11/28/2006
7134623	Hammermill A hammermill having a housing, a rotor assembly, a plurality of hammers, and a attrition plate assembly is provided to reduce oversized particulate material to a desired size. The housing has a sidewall that extends between an inlet end and an discharge end which de...	11/14/2006
6955313	Hammer mills The present invention concerns improvements in hammer mills, secondary and tertiary, reversing and not, that allow to resolve problems tied to the shattering of the inert hammers. Through the use of a special device circular of rotation, endowed with blades of inter...	10/18/2005
6953168	System for positioning the rotor and indexing a percussive comminutor The rotor (2) being operatively associated with an indexing member (13) in the form of a prism, coaxial and secured in rotation with the rotor, said indexing member having a number of projecting edges equal to the number of beaters (3), the inde...	10/11/2005
6926215	Hammermill A hammermill having a housing, a rotor assembly, a first plurality of hammers, and a first attrition plate assembly is provided to reduce oversized particulate material to a desired size. The housing has a sidewall that extends between an inlet end and an discharge ...	08/09/2005
5377919	Hammermill A hammermill is presented which includes a plurality of hammers each presenting an arcuate striking profile. The hammermill includes a rotor having rods for swingable carrying the hammers thereon and a motor for rotating the rotor. The hammers are longitu...	01/03/1995
5161746	Reversible hammermill An improvement to a hammermill extends the life of the hammers by providing regular and periodic reversal of the rotor of the hammermill without the necessity of disassembly of the hammermill or the necessity of moving or operating levers, screws or other...	11/10/1992
5125585	Reversible hammer mill with compound breaker plate adjustments A hammer mill having a rotor carrying a series of hammers for the reduction of material entering the hammer mill, a casing forming a material receiving inlet opening into a throat space from outside the mill, a rotor having hammers traveling in a circular...	06/30/1992
5062575	Comminutor with impact, shear and screening sections A reversible hammermill with breaker blocks or plates and one or more adjustable cages equipped with distinct shearing and screening sections, and having a shearing section of greater than normal length having a commencement point above the 3 o'clock posi...	11/05/1991
5002233	Reversible hammers for hammer mills A material grinding mill of reversible character having hog-type hammers formed with chisel edges pivotally mounted on supporting discs, and further formed with landing areas positioned to contact the supporting discs so that the chisel edges are prevente...	03/26/1991
4830291	Waste material reversible hammer mill A reversible downdraft rotary hammer mill for processing waste material in which breaker plates and a grate assembly are cooperatively arranged so the terminal ends of the grate assembly are laid back to form with the adjacent terminal ends of the breaker...	05/16/1989
4819886	Rotary hammer mill for breaking stone and similar material A rotary hammer mill for breaking stone, gravel and similar material to achieve a desired size reduction. The mill includes a plurality of hammerheads rotatably supported in a housing for rotation in a substantially horizontal plane to define a substantia...	04/11/1989
4798343	Low speed shut down apparatus and method for high temperature hammer mills Low speed shutdown apparatus for a high temperature hammer mill having a relatively high speed drive motor connected to the hammer mill drive shaft includes a low speed, high torque shutdown drive motor and a drive belt for connecting the low speed shutdo...	01/17/1989
4767066	Downdraft reversible hammer mill A downdraft reversible hammer mill having a casing structure for rotatably supporting a hammer assembly between a top inlet and a bottom outlet, breaker plates pivoted near the top inlet and extending down on opposite sides of the circular path of the ham...	08/30/1988
4662570	Apparatus for processing refuse to produce steel-making scrap Refuse scrap from incinerated refuse or nonincinerated refuse is dried and precleaned to a metal content in excess of 70% and is then comminuted and abraded in a hammer shredder with the comminuted material being subjected to air separation and magnetic s...	05/05/1987
4651934	Pulverizing mill A pulverizing mill is disclosed, suitable for wet or dry foodstuffs, chemicals, plastics and pharmaceuticals, having a reversible welded multi-bladed rotor which is substantially seamless and crack-free so as not to catch and retain particles of the mater...	03/24/1987
4350307	Two-sided magnetized diverting plate for hammermill A feed diverting guide plate at the material entrance to the grinding chamber of a hammermill, the plate being magnetized on both sides thereof and being tiltably reversible in position, the magnetized sides of the guide plate attracting with one side the...	09/21/1982
4245790	Pressure relief for material shredders Pressure relief for material shredders to immediately vent pressure rise within the working spaces of a material shredder and prevent structural damage to the shredder and surrounding equipment. The pressure relief is also directed to structure for contro...	01/20/1981
4177953	Chopping-raising-cleaning assembly for sugar cane harvesting machines A chopping-raising-cleaning assembly for sugar cane harvesting machines in which the operations of cutting the cane into billets, cleaning of said billets and elevation and transport of the billets to a loading position is out by a billet chopping-throwin...	12/11/1979
4085897	Crusher-dryer and method of crushing An improved apparatus for the simultaneous crushing and drying of materials, such as coal with high moisture content, which includes a hammermill having parallel top inlets for the material and a rapid flow of hot air. The material drops into the impactor...	04/25/1978
4049206	Comminuting machine for trash A comminuting machine for trash has a generally closed housing provided at its top with an inlet and its bottom with an outlet. A rotor is provided in the housing and has at least one radially extending beater element that orbits on rotation of the rotor ...	09/20/1977
4009836	Material reducing machine A material reducing machine has a housing and a reversible rotor which revolves in the housing. On each side of the rotor the housing carries wear plates which pivot such that their lower ends will move inwardly, thus enabling the wear plate to serve as a...	03/01/1977
3946950	Material reducer A material reducer for coal, lignite, ore, stone, rock, oil shale and the like which employs rotary hammers, bars or the like not only to crush the material but also to propel the crushed material upwardly along a confined or partially confined path which...	03/30/1976
3934499	Scrap shredding system A shredding system for reducing automobiles and other large pieces of metal scrap to fragments includes a feed chute for receiving the scrap and a shredder to which the chute directs scrap. A track feeder is located above the chute for both crushing the s...	01/27/1976

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Class 241/189.2 - Reversible rotary mill