Assignee: Andritz Sprout-Bauer, Inc.

Location: Muncy, PA
No. of patents: 32

Browse patents
Browse applications

Number	Title	Issue Date
6165317	Control of refined pulp quality by adjusting high temperature pre-heat residence time A method for refining lignocellulose-containing material into pulp in a disc refiner comprises preheating the material to a temperature greater than the glass transition temperature of lignin in the material, and holding this temperature for under one min...	12/26/2000
5813618	Continuous cyclindrical wood pulp refiner A continuous cylindrical wood pulp refiner comprising a rotor disposed in a housing having a plurality of structural members. At least one refining plate is mounted to a holder portion of each member such that the entire periphery of the rotor is exposed ...	09/29/1998
5782605	Impeller for separating a conveyed stream of material An impeller is for separating a conveyed stream of material. The impeller has a central rotatable hub with a plurality of blades extending radially therefrom. The hub and blades form a number of generally wedge-shaped material receiving spaces within the ...	07/21/1998
5776305	Low-resident, high-temperature, high-speed chip refining A method for refining lignocellulose-containing material into pulp in a disc refiner comprises preheating the material to a temperature greater than the glass transition temperature of lignin in the material, and holding this temperature for under one min...	07/07/1998
5727908	Air lift pump for wet particulates An air lift pump for wet particulates has a plurality of transport tubes and air injectors disposed in a central column for transporting particulate matter from a lower elevation to a higher elevation. The central column has a closed top and an open botto...	03/17/1998
5691636	Probe assembly mounting for a grinding machine The invention is a method and apparatus for calibrating a gap sensing probe (12) in a refiner having first (76) and second (80) grinding plates facing each other and supported by respective first and second plate holders, each grinding plate having a face...	11/25/1997
5667157	Bearing clearance adjustment The comminution apparatus comprises a drive shaft having a roller bearing which is disposed in a housing. A temperature detector mounted in the housing monitors the temperature of the roller bearing. Hydraulic fluid is supplied to a circumferential groove...	09/16/1997
5665403	Double tapered die mount The double tapered die mount defines a channel to support the die shoulder. No contact occurs between the die and die housing. The die shoulder is machined to be in generally congruent relationship with the channel shape of the die mount of the invention....	09/09/1997
5644971	Vessel for steeping of grain A vessel for steeping grain having a tank (12). A central column (44) is disposed in the center of the tank (12) having transport lines (42) with air lifts (46) on the lower end of the lines for the transporting of grain and steeping fluid from the bottom...	07/08/1997
5626300	Disc refiner with conical ribbon feeder A feeder assembly for lignocellulosic chip refiner has a conical core having a major diameter end and a minor diameter end. A helically coiled ribbon is supported by and extends longitudinally in spaced relation with the core. The ribbon is defined by tur...	05/06/1997
5626889	Single tapered die mount The single tapered die mount employs a radially inner surface at an angle to the axis of rotation of the die mount, die and die holder. The radially inner surface of the die mount acts on an annular shoulder of the die to support and position the die in t...	05/06/1997
5624578	Separation apparatus nozzle assembly A nozzle assembly (1) for use in a separation apparatus for separation of liquid suspensions the separation including such nozzle assembly, and a method for its use. In the nozzle assembly, the outlet end of the nozzle is biasable towards the inner surfac...	04/29/1997
5622458	Air lift pump for wet particulates An air lift pump for wet particulates has a plurality of transport tubes and air injectors disposed in a central column for transporting particulate matter from a lower elevation to a higher elevation. The central column has a closed top and an open botto...	04/22/1997
5585124	Quill shafted pellet mill The present invention employs a main shaft cantilevered from a frame. A die holder is disposed around the outside of the shaft, and in the preferred embodiment rotates by the use of adjustable tapered roller bearings around the shaft. Fixed to the die hol...	12/17/1996
5520804	Deep bed filtration system A deep bed filter system comprising a plurality of filter media beds, each having a respective media regeneration sub-system that includes some components associated with an individual filter bed and other components that are shared with all filter beds i...	05/28/1996
5487862	Annular gap expander pellet former and process of using same A method and apparatus in the context of a pellet former (10) that is integral to an annular gap extruder/expander (11). A housing (30) is disposed around the annular gap extruder outlet end. Material is received from annular gap (37) on the face of a rot...	01/30/1996
5478511	Annular gap expander A method and apparatus in the context of a rotating conveying screw situated within a cylindrical housing which has an inlet port on one end of the cylinder and a discharge opening on the other end of the cylinder. A resistance plate is mounted transverse...	12/26/1995
5445328	Dual zone refiner with separated discharge flow control In an apparatus (10,100,300,400) for refining a low consistency fibrous slurry, which includes a plurality of refining zones (38,40; 188,128; 324,334; 411,413) within a casing, the improvement comprises providing a unique discharge flow path from each ref...	08/29/1995
5383608	Twin conical refiner with dual ribbon feeders Apparatus and method for the mechanical refining of high consistency lignocellulosic feed material in a frustroconical refining zone, by facilitating the backflow of steam generated in the refining zone through the upstream feed zone which, despite the ba...	01/24/1995
5379881	Stream splitting apparatus An apparatus for splitting a stream of material into two or more streams. The apparatus includes a cylindrical housing with an axial inlet and two or more radial outlets which are axially spaced from each other. The apparatus includes an impeller which ha...	01/10/1995
5366680	Annular gap extruder A method and apparatus in the context of a rotating conveying screw situated within a cylindrical housing which has an inlet port on one end of the cylinder and a discharge opening on the other end of the cylinder. A resistance plate is mounted transverse...	11/22/1994
5364038	Screenless hammermill A hammermill (10) comprises a casing (12) having a longitudinal axis (18) and a sidewall (20) such that an enclosed grinding space (24) is defined within the casing. A rotor assembly (26) is situated within the casing for rotation about the axis, and incl...	11/15/1994
5335865	Two-stage variable intensity refiner A high consistency pulp refiner of the type having a pressurized casing (12) containing opposed grinding discs (14,18) mounted for counter-rotation about a common axis (26) and between which material to be refined is introduced near the axis so as to move...	08/09/1994
5307998	Method for processing scrap film An economical apparatus and method for reprocessing scrap film. The apparatus includes a film-air separation chamber for separating air from incoming strips of scrap film, a cutter for cutting the strips into fine pieces, and a storage tank or further rep...	05/03/1994
5293219	Fiber length analyzer A measuring cell (22) in a fiber sample analysis system (10) contains housing member (76) which removably supports a transparent flow tube (82) and an optical device (26) which projects a beam (124) across the tube for detecting and measuring individual f...	03/08/1994
5277829	Deep bed sand filter A deep bed upflow filter (10) for removing suspended solids from an influent stream to provide a clean filtrate, comprising an upright vessel (12) having a vertical axis (14), top and bottom ends (16,18) and contiguous upper (20), lower (22), and intermed...	01/11/1994
5262598	Weigh hopper supported by a 3-point suspension with a tension load cell A weigh hopper installation (10) includes a rigid support frame (14) and a hopper (16) having a center of gravity (42) situated laterally adjacent to the frame. Substantially all the weight of the hopper is supported through a load cell (54) carried by a ...	11/16/1993
5257740	Apparatus and process for recycling scrap film An apparatus and process for recycling scrap film. The apparatus includes a washer-shredder upstream from a film cutter in order to remove impurities from the film. The scrap film is rinsed in a rinse loop which uses screen sieves for removing additional ...	11/02/1993
5248099	Three zone multiple intensity refiner A pressurized disc refiner and associated method, in which three distinct refining zones (42, 44, 46) are provided within one refiner unit (10). The refining intensity is independently controllable in each zone, in part as a result of the selective separa...	09/28/1993
5181664	Grinding plate with angled outer bars A grinding plate (10) for the face (104) of a refiner disc (100) having a center and a substantially circular periphery (102), comprises a plurality of grinding plate segments (12) arranged side-by-side on the face (104) of the disc to form a substantiall...	01/26/1993
5170949	Apparatus and method for processing scrap film An economical apparatus and method for reprocessing scrap film. The apparatus includes a film-air separation chamber for separating air from incoming strips of scrap film, a cutter for cutting the strips into fine pieces, and a storage tank or further rep...	12/15/1992
5119995	Keyway for refiner disc A rotor member (10,000) having a central bore wall (18,118) that is rigidly connected to a shaft (12,112) by a thermally-induced interference fit and by radially extending, interlocking complementary formations, wherein said formations include a key (20,1...	06/09/1992

PatentStorm

Bizarre Patents

PatentStorm News

Assignee: Andritz Sprout-Bauer, Inc.