Class 209/683 - Aperture in circumferential wall of hollow body (e.g., tube, etc.) rotatable about longitudinal axis thereof

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Methods and apparatus wherein said aperture is in the circumferentially
No. of patents: 39
Last issue date: 12/13/2011

Number	Title	Issue Date
8074808	Automated shell separator An automated device that separates out desired shells from a batch of mixed shells. The device allows an operator to gather all spent shells from a shooting range, for example, where many different caliber bullets have been fired, and have all the shells separated b...	12/13/2011
7416084	Apparatus for piercing garbage bags and collecting nonrigid, elongate objects and powder Provided is an apparatus comprising a screen assembly for sifting powder including a rear feeding device, a first conveyor adapted to convey garbage bags from the feeding device to the screen assembly, an inclined board extended downwardly from a front end of the sc...	08/26/2008
7367457	Device for the separation of non-magnetizable metals and ferrous components from a solid mixture and method for operating such device In an arrangement which including a motor-driven system for the separation of non-magnetisable metals, vibrations and resonances which generally are present in such arrangement, are eliminated. This is accomplished by utilizing a drum mounted on and rotating about a...	05/06/2008
7347933	Self-cleaning intake screen A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the...	03/25/2008
6955265	Apparatus of piercing garbage bags and classifying garbage An apparatus comprises a cylindrical rotary piercing and screen assembly including surface openings, rows of first needles, and rows of blades, and a channel-shaped washing and dispersion mechanism. Garbage bags are pierced by the first needles and the blades as the...	10/18/2005
6889851	Bar screen A bar screen is primarily intended for use in draining liquid from wood chips and pulp without blocking the bar screen. The area of use is especially a process area, in which cooking and circulation liquid is removed from a pressure vessel when making chemical pulp ...	05/10/2005
6860392	Device for concentrating metallic coins produced from shredder operations A separator is disclosed for mechanically separating objects having one size dimension less that a predetermined threshold size. The present separator comprises a cylindrically- or barrel-shaped device having one or more louvers. The barrel is oriented at a preset a...	03/01/2005
6739455	Defective capsule removing mechanism A defective capsule removing mechanism is provided wherein a defective capsule discharging window is provided for a capsule pocket and the capsule pocket, is subject to suction through the discharging window so that a cap or a body of a coupling defective capsule is...	05/25/2004
6612446	Roll for spreading and slowing down pourable materials A spreading roll for spreading out a chip fleece for producing wood chip material or similar panels, includes two disk-shaped end pieces (3, 7), plural thin spokes (6), rods, pipes or cords arranged extending between the end pieces, and pipe-shaped loose ...	09/02/2003
6253928	Grain grader In a preferred embodiment of the invention, a grain grader has an improved cleaning system utilizing cascades of rollers swingably engaged with a grading cylinder. In a preferred embodiment, a multiple axle roller assembly for dislodging clogged grain in ...	07/03/2001
6244445	Moisturizing equipment A hollow rotating drum 1 is provided in an oblique manner and is rotated by two pairs of rollers 3a, 3b. A size classification unit 2 is provided in the vicinity of a center of the rotating drum in a lengthwise direction of the drum, and water is added fr...	06/12/2001
6004404	Product cleaner The present invention provides a cleaner having a hopper for receiving dirty product to be cleaned. The hopper feeds the dirty or contaminated product downwardly onto a cleaning comb that directs the larger sized contaminants onto the exterior surface of ...	12/21/1999
5791493	Polysilicon particle classifying apparatus Apparatus for classifying high purity polysilicon particles includes a receptacle for holding the particles and a rotary member for feeding the particles from the receptacle. The rotary member defines at least a portion of a front wall of the receptacle a...	08/11/1998
5570790	Strainer having a main screen and a fore screen A strainer comprises a housing. A main screen is disposed within the housing. The fore screen is disposed within the housing and includes a first section and a second section. A main beater is connected to the second section of the fore screen. The fore s...	11/05/1996
5437374	Adjustable orifice trommel An adjustable orifice trommel having an elongated body rotatable about an axis, an entry for insertion of particulate material, and an exit for retrieving screened material. The trommel includes a plurality of flat inner plates, each inner plate having a ...	08/01/1995
5373948	Device for separating long-size materials A device for separating long-size materials included in the scraps of a crushed car, etc., has an inner cylinder which is installed with a slope and around which a plurality of short pipes are radially installed as they open to the inside of the inner cyl...	12/20/1994
5366639	Process of separating using a rotating screen A method of and apparatus for continuously separating relatively coarse particles from a suspension of mixture of particles in a liquid by impinging the suspension upon the surface of a rotating screen so that liquid containing the relatively fine particl...	11/22/1994
5332103	Bean grader A grader drum has fixed grader bars which extend between two annular end plates. Rotatable grader bars extend between the end plates between each pair of fixed bars. A generally frustoconical cam is movable axially with respect to the drum. A cam follower...	07/26/1994
5101977	Solid waste sorting system The present invention is addressed to an apparatus and method for carrying out the effective separation or classification of MSW into fractions with improved efficiency. This improved efficiency is achieved inter alia through the use of various separation...	04/07/1992
5009370	Municipal solid waste material sorting trommel system A municipal solid waste material sorting system comprises a multi-stage trommel having a relatively short first stage section with relatively small holes for screening out grit, dirt, coins, small stones and the like, a second substantially longer second ...	04/23/1991
4927528	Sieve device for sieving out compost from rotten organic material The sieve device comprises a filling funnel for feeding the material. A conveyor belt runs on the bottom of the filling funnel. The conveyor belt projects into a sieve drum, which is driven by a hydraulic motor. The material is transported through the sie...	05/22/1990
4779741	Sorting device A sorting device for sorting out a multiplicity of pieces such as tickets according to their size including a cylindrical sorting drum rotatably mounted in a frame for storing therein pieces having different sizes to be sorted out, a first row of openings...	10/25/1988
4728043	Mechanical sorting system for crude silicon carbide A process for purifying crude silicon carbide lumps from an Acheson furnace comprising agitating the lumps in a drum having a cylindrical wall, its axis substantially horizontal and having openings of controlled size, smaller than said crude lumps, in sai...	03/01/1988
4620634	Sorting device A sorting device for sorting out a multiplicity of pieces such as tickets, for example, according to their size includes a frame, a drum rotatably mounted in the frame for storing therein pieces such as tickets having different sizes to be sorted out, a s...	11/04/1986
4595104	Sorting device Each of sorting mechanisms on a sorter drum comprises a substantially trapezoidal slit defined in a cylindrical wall of the sorter drum and providing a substantially trapezoidal tongue displaced radially outwardly from the cylinderical wall, and a substan...	06/17/1986
4582202	Centrifugal sorting method A method for the sorting of bulk material comprises the feeding of the bulk material into a frusto-conical sorting means. The rotational speed of the sorting means is varied to permit the passage of the bulk material therethrough at the higher speed and t...	04/15/1986
4541531	Rotary separator A rotary separator is disclosed which utilizes a rotating drum having a plurality of radially elongated slots therein that lead radially outwardly from a central tumbling chamber. A mixture of molded parts and molding runners is placed inside the central ...	09/17/1985
4535895	Sorting device A sorting device for sorting out a multiplicity of pieces such as tickets according to their size, comprises a cylindrical sorter drum rotatably mounted in a frame for storing therein pieces having different sizes to be sorted out, means on the sorter dru...	08/20/1985
4509697	Rotary drum screen for waste material and its method of operation A rotary drum screen which exhibits baffles with impact plates extending in the direction of the periphery and a diameter which makes it possible to break up the refuse beforehand through free fall. The upper edge of the impact plates can have a saw tooth...	04/09/1985
4487323	Automatic particle-size analyzer The invention is apparatus which can automatically make a screen analysis of a granular material. The heart of the apparatus is a polygonal drum having graded screens on each of the faces except one. This open face serves as a door for introducing a sampl...	12/11/1984
4480754	Screening apparatus for grains, seeds or the like crops A screening apparatus for grains comprises a housing, wherein a support structure is arranged which is rotatable by means of a main shaft. The support carries a screen drum rotatably mounted upon a planet shaft arranged eccentrically with respect to the m...	11/06/1984
4469230	Sorting cylinder for seeds and other grains A sorting cylinder for seeds and other grains with a horizontal, driven calibrating cylinder (11) resting on rolls (22, 23, 24, 25) and with a stationary machine casing (1) surrounding the calibrating cylinder (11) which has an inlet (4) for the material ...	09/04/1984
4457435	Popcorn kernal separator A low cost, manually operated, popcorn kernal separator. The separator includes a support stand and a perforated drum with a lid enclosing a front opening and the access of the drum mounted angularly with respect to the horizontal leg of the support base....	07/03/1984
4387019	Aluminum can reclamation method A method for reclaiming aluminum cans from municipal refuse is disclosed. The method includes a first screening operation to remove materials substantially larger than the cans, a second screening operation to remove material substantially smaller than th...	06/07/1983
4254878	Screen for separating objects by shape Mixed solid waste, such particularly as municipal waste, is subjected to treatment which separates the majority of the ferrous metal pieces from the other solids, and the invention provides apparatus for separating the resulting mass into (a) flat-shaped ...	03/10/1981
4043901	Wood chip screens A drum screen for cleaning and classifying wood chips is mounted for rotation. The screen has apertures of varying size to permit cleaned chips to pass through to be deposited on conveyors located below. An internal annular spiral baffle extends the full ...	08/23/1977
4024877	Vegetable peas and separating the hulls therefrom and the like Method and apparatus for shelling vegetable peas and separating the hulls from the pea, in which the method and apparatus includes a tumbler and agitator for displacing the pea from the hull, agitator which shells the peas, and a separator of novel design...	05/24/1977
3942644	Apparatus for cooling castings and for cooling and drying moulding sand An apparatus for cooling castings and cooling and drying moulding sand, comprising a horizontal drum rotatable about its longitudinal axis and having an inlet opening for castings and casting moulds at one end and an outlet opening for castings at the oth...	03/09/1976

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Class 209/683 - Aperture in circumferential wall of hollow body (e.g., tube, etc.) rotatable about longitudinal axis thereof