Trough Or Tube, With Axially Rotary Conveyor Or Agitator Patents (Class 34/166)
  • Patent number: 10408538
    Abstract: The present disclosure provides a bottom drying type sludge drying device, comprising: a housing in which a curved-face partition is provided for separating space in the housing into first and second drying chambers; a feed gate and an outlet provided on an upper portion of the first drying chamber, and a discharge gate provided on the circumferential wall of the first drying chamber. An inlet is provided on a side wall or bottom of the second drying chamber. The curved-face partition comprises a depressed area in which a communication opening is formed, and a bridge-shaped element is provided above the communication opening, forming a lateral aperture between the bridge-shaped element and the partition.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 10, 2019
    Assignee: GUANGZHOU ENVIRONMENTAL CREATIVE SOLUTIONS CO LTD
    Inventor: Wei Tan
  • Patent number: 9664338
    Abstract: When manufacturing a low-temperature tank (1), a plurality of unit tanks (10) that are able to be connected together by mutually different objects, and that are each capable of storing low-temperature liquefied gas are manufactured in a factory that is distant from a construction site. The unit tanks (10) are then transported to the construction site, and an inner tank (2) is then assembled at the construction site by connecting together the plurality of unit tanks (10). An outer tank (3) is then formed around the inner tank (2).
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 30, 2017
    Assignee: IHI CORPORATION
    Inventors: Moriki Hata, Juichiro Yamada, Michitaka Furikoma, Masahiko Sugitani
  • Patent number: 8984762
    Abstract: The invention relates to a dryer for drying of garden waste, particularly of chopped lop and other bulk material, comprising an elongated lying container with a cross section which is at least partially round; the container comprises at its one end an inlet and at its other end an outlet for the material; the container wall is perforated at least over parts of its length; the perforations are connected to pressurized air; there are provided conveyer means which seize the material in the ascending quadrant of the container wall and transport the same upwardly over a certain length of path.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 24, 2015
    Assignee: Allgaier Werke GmbH
    Inventors: Mathias Trojosky, Hermann Weiss
  • Patent number: 8875412
    Abstract: A dryer burner apparatus includes a gas supply line that is fluidly coupled to a gas supply. A burner tube is fluidly coupled the gas supply line and has a top side and a bottom side. The burner tube has a plurality of apertures extending therethrough and the apertures are positioned in the bottom side. An air mixer is positioned below the burner tube. The air mixer has a plurality of air openings extending therethrough. A blower directs air upwardly to the burner tube so that the air can be heated by the burner tube.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: November 4, 2014
    Inventor: Allan Anderson
  • Patent number: 8726532
    Abstract: Methods and systems are disclosed for drying a material or, more generally, flash evaporating a target substance having a vapor pressure threshold. The methods and systems include a conveyor conduit that receives material. The material moves through the conveyor and is expelled into a pressure drop zone created by one or more venturi nozzles. As the material encounters the pressure drop zone, the targeted substance in the material experiences a rapid and extreme pressure drop and simultaneously a rapid temperature increase. This causes the target substance in the material to flash evaporate virtually immediately. The resulting vapor is separated from the remaining material and the now dry material is collected for further processing or use. The vapor can be collected, condensed, exhausted, or otherwise treated depending upon the goals of a particular installation or process.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: May 20, 2014
    Assignee: Flash Rockwell Technologies, LLC
    Inventor: John Hogan
  • Patent number: 8646189
    Abstract: The present invention provides an improved continuous vertical feed pistachio nut dryer that has an inner compartment defined by bulkhead walls formed of smooth and seamless outer walls of perforated sheet stock, and has an infeed chamber with a batch hopper used in conjunction with an auger to provide a structure configured to operate in a batch fill mode wherein the inner compartment is filled evenly along the length of the dryer.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 11, 2014
    Inventor: James William Tjerrild
  • Patent number: 8479408
    Abstract: A retrofit turner and sensor unit includes, on its upper portion, a grain turner for moving grain from a central portion in the grain pathway to a defined outer space for measurement. On its lower portion, the retrofit unit includes a moisture sensor and a temperature sensor provided in a plate configuration in line with the outer wall of the grain dryer for sensing moisture and temperature of grain in the defined space. In the preferred configuration, the plate sensor includes redundancies, and is mounted on a hinged door. The retrofit unit is easily installed into an existing grain dryer with columns and continuous flow capabilities, and electrically connected with a controller/processor and a motor for metering rolls which determine grain speed through the dryer.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 9, 2013
    Inventor: Noble M. Salisbury
  • Patent number: 8359765
    Abstract: The invention relates to a method and a device (01) for dewatering and drying a mixture made of plastic granulate and water, having at least one mixture intake (02), through which the mixture is supplied to the device (01), having at least one water outlet (08), through which the precipitated water is removed from the device (01), having at least one granulate outlet (13), through which the dried granulate is removed from the device (01), the device (01) having a dewatering line (06), along which the mixture is dewatered, and the device (01) having a drying line (12), along which the dewatered granulate is dried.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 29, 2013
    Assignee: Automatik Plastics Machinery GmbH
    Inventors: Andreas Doll, Reinhardt-Karsten Müerb
  • Patent number: 8245532
    Abstract: A refrigeration system that includes at least one semi-closed air-refrigerated chamber and an air-cycle refrigeration loop for drawing air from the refrigerated chamber(s), cools the air, and returns the now-cooled air to the refrigerated chamber(s). The refrigeration loop includes various compression, expansion and heat transfer stages for cooling the air drawn from the refrigerated chamber(s). The air within the refrigerated chamber and air infiltrating into the refrigerated chamber(s) will typically contain moisture. A positive-pressure cyclone separator located between a final expansion stage and the refrigerated chamber(s) removes snow created in the final expansion stage due to moisture in the air drawn from the refrigerated chamber(s).
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 21, 2012
    Assignee: Concepts ETI, Inc.
    Inventor: Elia P. Demetri
  • Patent number: 8240062
    Abstract: A rotor assembly for a grain dryer having a framework and a number of wipers secured to the framework. The framework has a number of primary supports that extend radially outwardly from the central axis and a number of secondary support members connected to the end of the primary support members and positioned to engage the shelf floor of the grain bin.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: August 14, 2012
    Assignee: Sukup Manufacturing Co.
    Inventor: Eugene G. Sukup
  • Publication number: 20090151187
    Abstract: A gypsum dryer/calciner includes a calcining space; a first pipe having an inlet connected to a source of hot gases and an outlet emerging in the calcining space; a second pipe having an inlet connected to a source of gypsum and an outlet emerging in the calcining space, the second pipe being concentric with the first pipe; and a force-feeding screw positioned at least partially in the second pipe, the screw carrying the gypsum along in the calcining space.
    Type: Application
    Filed: November 11, 2008
    Publication date: June 18, 2009
    Applicant: LAFARGE PLATRES
    Inventor: Charles Falinower
  • Patent number: 7421802
    Abstract: A self-cleaning centrifugal dryer system and method for removing surface moisture allow complete removal of plastic pellets, flakes and particles from the dryer and water-conveying or water processing system during or after each drying cycle. By eliminating plastic particulate retention in the dryer and throughout the water conveyance and processing systems whereby contamination of different type materials dried during a subsequent drying cycle is avoided. Air and water alone or in combination under pressure are discharged toward various accumulation or occlusion (“hang-up”) points in the dryer and throughout the water-conveying or processing system to remove retained plastic pellets, flakes and particles.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: September 9, 2008
    Assignee: Gala Industries, Inc.
    Inventors: John P. Roberts, Charles E. Aaron, Roger B. Wright
  • Patent number: 7246451
    Abstract: A capsule dryer utilizes an upper level having a plurality of drying baskets and a lower level having a plurality of drying baskets disposed beneath the upper level of drying baskets. The footprint of the capsule dryer is thus reduced while providing a same or superior drying capabilities. Furthermore, the drying baskets at the different levels are independently controlled.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 24, 2007
    Assignee: Technophar Equipment & Service Limited
    Inventors: Herman Victorov, Eugen C. Dinescu
  • Patent number: 7171762
    Abstract: A self-cleaning centrifugal pellet dryer and method for removing surface moisture from pellets and enabling complete removal of all pellets from the dryer after each drying cycle. By eliminating dried pellets retained in the dryer, contamination of different type pellets dried during a subsequent drying cycle is avoided. Air and water under pressure are discharged toward various pellet hang-up points in the dryer to remove retained pellets.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: February 6, 2007
    Assignee: Gala Industries, Inc.
    Inventors: John P. Roberts, Charles E. Aaron
  • Patent number: 6834442
    Abstract: A metering conveyor adapted to move a controlled volume of grain. The conveyor incorporates a series of carriers that can each be switched between a scooper assembly and a blocker assembly. The ratio of scooper assemblies to blocker assemblies determines the volume of grain that is metered for a predetermined conveyor speed. The conveyor is modular and is especially suited for a modular rectangular grain dryer. The conveyor further includes a paddle that is adapted to move grain to a discharge chute.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: December 28, 2004
    Assignee: CTB IP, Inc.
    Inventor: Brent J. Bloemendaal
  • Patent number: 6655039
    Abstract: For separating and drying pellets from a suspension, centrifugal dryers have proved successful wherein a rotor equipped with conveyor blades and disposed vertically in an outside housing for collecting the liquid is enclosed coaxially by a hollow body formed of screen elements. The suspension of pellets and liquid is supplied continuously to the lower area of the space between the hollow body and the rotor. The pellets are transported upward by the conveyor blades rotating with the rotor while being thrown back and forth and dried between the conveyor blades and the screens. At the upper end of the rotor the dried pellets are thrown off. The liquid separated from the pellets passes through the screen jacket and flows out of the discharge port of the outside housing.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 2, 2003
    Inventor: Günther Hultsch
  • Publication number: 20030140520
    Abstract: A system for removing from a particle mass a liquid permeating the particle mass includes a vaporizing stage having a space wherein the pressure is less than the pressure of the particle mass. As the particle mass enters the vaporizing stage, the lower pressure causes much of the liquid to vaporize. Once vaporized, the vapor can be removed with a pump. A first stripping stage receives the particle mass from the first stage at a first particle inlet port and discharges the particle mass at a first particle outlet port. A first stripping gas inlet near the first particle outlet port of the first stripping stage injects an inert stripping gas into the particle mass. The inert gas mixes with remaining elements of the liquid and any entrained gas formed by the liquid, and the mixture is discharged at a gas outlet near the first particle outlet port. A second stripping stage having construction and operation different from the first stripping stage may receive the particle mass.
    Type: Application
    Filed: October 29, 2002
    Publication date: July 31, 2003
    Inventors: George E. Anderson, Daniel D. Anderson, Richard W. Ozer, Floyd C. Teeter
  • Patent number: 6457255
    Abstract: Conditioning apparatus for handling particulate material comprises a central frame and a plurality of spaced, annular troughs mounted to the central frame to support the particulate material. The troughs are arranged in a stacked configuration having successive pairs of upper and lower troughs with an uppermost trough for receiving the particulate material and a lowermost trough for discharging particulate material. Hydraulic cylinders or other suitable means are used to impart vibratory movement to the plurality of troughs to fluidize and advance the particulate material in a first direction on each of the plurality of troughs. A passage is formed through each trough for particulate material to fall from the upper trough of a pair to the lower trough.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: October 1, 2002
    Inventor: Allan M. Carlyle
  • Patent number: 6457256
    Abstract: An apparatus for controlling grain flow within a column of a grain dryer is disclosed. The grain dryer includes a metering roll positioned to contact grain advancing out of a discharge opening of the column. The grain dryer further includes a regulator member which is movable between a flow regulating position and a trash escape position. The regulator member contacts either the metering roll, or grain supported by the metering roll when the regulator member is positioned in the flow regulating position. The regulator member is spaced from the metering roll by a distance sufficient to enable a trash object to advance between the regulator member and the metering roll when the regulator is positioned in the trash escape position. A method of controlling grain flow within a column of a grain dryer is also disclosed.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 1, 2002
    Assignee: The GSI Group, Inc.
    Inventors: Phillip C. Middaugh, L. Michael Watson
  • Patent number: 6449869
    Abstract: Device and method for drying a pourable products. The device includes a rotor chamber in which a rotor is arranged with a vertical rotor axis. The rotor has a central horizontal surface and, at least in its radially outer third, a conical shell which is inclined to the axis of rotation by 20° to 70°, in such a way that the end face of the conical shell has the largest diameter and is located at the top. The conical shell has, at least partially, sheet-like gas passages in the form of perforations or screens. The method for drying pourable products provides for dry gas to be fed in a sheet like manner to the products to be dried during the radially peripheral circulation of the products without the products being swirled up and being exposed to unacceptable compressive, concussive and/or frictional loads.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: September 17, 2002
    Assignees: Glatt Systemtechnik Dresden GmbH, KWS Saat AG
    Inventors: Frank Bretschneider, Bruno Peter, Jürgen Brückner
  • Patent number: 6438866
    Abstract: The present invention provides a flow disrupter within the flow path of a slurry comprising a desired particulate matter and a transport fluid so as to impart a force angularly disposed to an otherwise obtained direction of travel, thereby preventing the formation of a sheet of aggregated particulates against the screen surface. In a method in accord with the present invention a force is imparted to the desired particulate matter in an angular direction to the direction of travel.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: August 27, 2002
    Assignee: Carter Day International, Inc.
    Inventors: Stephan B. Meydell, Cedric J. Adams
  • Patent number: 6427359
    Abstract: Workpieces requiring low levels of contamination, such as semiconductor wafers, are loaded into a workpiece support or holder within a process chamber. The process chamber has a drain opening, slot or edge. The chamber is closed via a door. A process or rinsing liquid is introduced into the chamber. The liquid rises to a level so that the workpieces are immersed in the liquid. The chamber slowly pivots or rotates to move the drain opening down to the level of the liquid. The liquid drains out through the drain opening. The drain opening is kept near the surface of the liquid to drain off liquid at a uniform rate. An organic solvent vapor is introduced above the liquid to reduce or prevent droplets of liquid from remaining on the workpieces as the liquid drains off. An outer chamber may be provided around the process chamber to provide increased control of the process environment.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: August 6, 2002
    Assignee: Semitool, Inc.
    Inventors: Dana Scranton, Eric Bergman, Eric Lund, Gil Lund
  • Patent number: 6412428
    Abstract: A system for drying sludge includes a shaftless spiral feed screw for moving sludge through a drying chamber. An high energy inductor is located at a output of the drying chamber for drawing hot gases through the chamber to dry the sludge as it advances from the input end to the output end of the chamber. The high energy inductor also aspirates the dried sludge from the chamber. The drying system can be used in conjunction with a waste-to-energy furnace for incineration of sludge and municipal waste. In such an arrangement, the dried sludge can be aspirated from the drying chamber directly into a combustion zone of the furnace. Hot gases from the furnace can be used in drying the sludge.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: July 2, 2002
    Inventor: Vincent Promuto
  • Patent number: 6358042
    Abstract: A heating furnace is provided to use for medium and small size incinerator, to control air pollution effectively using waste heat generated from the incinerator and not to require large size equipment. The heating furnace includes a first opening for inserting disposal material, a second opening communicating with a furnace body being capable of heating the disposal material, a heat flow passage formed between the first opening and the second opening, and a heating tube having receiving means, the receiving means receiving the disposal material into the heat flow passage and at the same time dropping the disposal material into the furnace body during the rotation. A motor is connected to the furnace body to obtain electric power by heat generated from the furnace body.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: March 19, 2002
    Inventor: Yaichiro Moriguchi
  • Patent number: 6199299
    Abstract: In a chisel-type convergence for a chip bin in a wood chip pulping process and system, an improvement in uniformity of discharge of the chips from a chips bin or the like is provided. The bin includes a conventional hollow substantially right circular cylindrical first, upper, body portion, a second, hollow transition, portion connected to the bottom of the first portion, and a third transition portion, below the second portion and above a metering device, such as a metering screw or a star-feeder. The third transition operates less than full of chips, and provides relief from chip compaction. The third transition portion may include stationary or movable baffles, and/or a metering screw may be provided which can pivot downwardly in order to minimize or eliminate the thrusting force against the bin or upper chips to facilitate discharge.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: March 13, 2001
    Assignee: Andritz-Ahlstrom Inc.
    Inventors: J. Robert Prough, Jerry R. Johanson
  • Patent number: 6189235
    Abstract: An apparatus for controlling grain flow within a column of a grain dryer is disclosed. The grain dryer includes a metering roll positioned to contact grain advancing out of a discharge opening of the column. The grain dryer further includes a regulator member which is movable between a flow regulating position and a trash escape position. The regulator member contacts either the metering roll, or grain supported by the metering roll when the regulator member is positioned in the flow regulating position. The regulator member is spaced from the metering roll by a distance sufficient to enable a trash object to advance between the regulator member and the metering roll when the regulator is positioned in the trash escape position. A method of controlling grain flow within a column of a grain dryer is also disclosed.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: February 20, 2001
    Assignee: ffi Corporation
    Inventors: Phillip C. Middaugh, L. Michael Watson
  • Patent number: 6189234
    Abstract: A continuous flow fluid bed dryer has a dryer housing having a drying chamber and a plenum chamber located beneath the drying chamber. Moist product to be dried is introduced to the drying chamber at a product inlet and proceeds through the drying chamber to a discharge housing. A porous screen partially separates the drying chamber and the plenum chamber. Heated air is introduced into the plenum chamber which then passes through the screen to the drying chamber to dry product in the drying chamber. A shaft extends centrally through the drying chamber and is mounted for slow rotation therein. A plurality of paddles are connected to the shaft. The paddles move about a path of rotation whereby paddle ends sequentially sweep over the surface of the screen. In doing so, the paddles momentarily move product away from the screen permitting a rush of heated into the drying chamber locally fluidizing the bed and further drying the product.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: February 20, 2001
    Assignee: International Technology Systems, Inc.
    Inventor: William A. Luker
  • Patent number: 6141886
    Abstract: A grain dryer which includes a grain column through which grain may flow is disclosed. The grain column has a discharge opening. The grain dryer further includes a metering roll positioned to contact grain advancing out of the discharge opening of the grain column and a grain support member interposed between the metering roll and the discharge opening, the grain support member defining a substantially planar top surface. Rotation of the metering roll causes grain to advance out of the discharge opening, over the substantially planar top surface, and into contact with the metering roll. An angle .THETA. is defined between a line L1 defined by the substantially planar top surface and a horizontal line HL which intersects the line L1. The angle .THETA. is greater than or equal to 0.degree., but less than or equal to 30.degree..
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: November 7, 2000
    Assignee: ffi Corporation
    Inventors: L. Michael Watson, Phillip C. Middaugh
  • Patent number: 6138375
    Abstract: An improved support ring is disclosed for a polymer resin pellet dryer screen of the type which includes cylindrical screen sections interconnected by two semicircular bands forming a support ring or connecting band. The support ring is positioned in spaced relation to an exterior housing by brackets, and the screen encloses a driven bladed rotor for removing water from a slurry of water and pellets. The improved support ring comprises a two piece annular ring including a generally perpendicular, rigid flange attached to the exterior of a semicircular band pair. The flange rigidities the bands of the ring and supports the adjacent ends of the screen sections from the external housing to maintain the screen in cylindrical configuration and in concentric relation to the bladed rotor rotatably positioned within the screen.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: October 31, 2000
    Assignee: Gala Industries, Inc.
    Inventors: Toney Reid Humphries, II, Todd Anthony Niccum, William Douglas Woodson
  • Patent number: 6138377
    Abstract: The present invention is an apparatus and process for cooling and de-steaming hot calcined stucco used in the production of gypsum boards or bagged plaster. The apparatus is a fluid bed stucco cooler and comprises a cooler housing having a plenum with two chambers, a first chamber having a stucco inlet and a second chamber having a stucco outlet. The stucco cooler includes cooling coils that are located within the plenum and a fluidization pad positioned through the fluidization pad help to mix the air and the stucco powder to insure fluidization, prevent channeling, and prevent the stucco powder from building up on the cooling coils. The air also forces steam from the hot calcined stucco out through an air outlet located at the top of the stucco cooler, thereby de-steaming the stucco. The stucco flows through the plenum and passes over the cooling coils, thereby cooling the stucco as it reaches the stucco outlet.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: October 31, 2000
    Assignee: United States Gypsum Company
    Inventors: Michael L. Bolind, Michael J. Porter
  • Patent number: 6101742
    Abstract: An apparatus and method for controlling grain flow within a column of a grain dryer is disclosed. The grain dryer includes a metering roll positioned to contact grain advancing out of a discharge opening of the column. The grain dryer further includes a regulator member which is movable between a flow regulating position and a trash escape position. The regulator member contacts either the metering roll, or grain supported by the metering roll when the regulator member is positioned in the flow regulating position. The regulator member is spaced from the metering roll by a distance sufficient to enable a trash object to advance between the regulator member and the metering roll when the regulator is positioned in the trash escape position. A method of controlling grain flow within a column of a grain dryer is also disclosed.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: August 15, 2000
    Assignee: ffi Corporation
    Inventors: Phillip C. Middaugh, L Michael Watson
  • Patent number: 6076276
    Abstract: A grain dryer includes a wall assembly having (i) an inner wall and an outer wall which defines a grain flow path therebetween, and (ii) a discharge slot defined in the wall assembly thereof through which grain may flow. The grain further includes a grain shelf floor positioned relative to the wall assembly such that grain flowing through the discharge slot advances onto the grain shelf floor. In addition, the grain dryer includes a floor sweep assembly positioned vertically above the grain shelf floor. Moreover, the grain dryer includes a motor for rotating the floor sweep assembly about a central axis.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: June 20, 2000
    Assignee: ffi Corporation
    Inventors: Terry L. McKenzie, Paul W. Peterson, Wesley L. Peterson
  • Patent number: 6073364
    Abstract: A grain dryer includes a wall assembly having (i) an inner wall and an outer wall which defines a grain flow path therebetween, and (ii) a discharge slot defined in the wall assembly through which grain may flow. The grain dryer further includes a grain shelf floor positioned relative to the wall assembly such that grain flowing through the discharge slot advances onto the grain shelf floor, the grain shelf floor has a hopper opening defined therein.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: June 13, 2000
    Assignee: ffi Corporation
    Inventors: Terry L. McKenzie, Paul W. Peterson, Wesley L. Peterson
  • Patent number: 6073367
    Abstract: A grain dryer includes a wall assembly having (i) an inner wall and an outer wall which defines a grain flow path therebetween, and (ii) a discharge slot defined in the wall assembly through which grain may flow. The grain dryer also includes a grain shelf floor positioned relative to the wall assembly such that grain flowing through the discharge slot advances onto the grain shelf floor. The grain dryer further includes a floor sweep assembly positioned vertically above the grain shelf floor, the floor sweep assembly having (i) a support member, and (ii) a wiper positioned relative to the support member such that, when the floor sweep assembly is viewed in a plan view, the support member defines an intersection with the wiper. The grain dryer also includes a motor for rotating the floor sweep assembly about a central axis. In addition, the grain dryer includes a spacer attached to both the support member and the wiper in a manner which causes the support member to be spaced apart from the wiper.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: June 13, 2000
    Assignee: ffi Corporation
    Inventors: Terry L. McKenzie, Paul W. Peterson, Wesley L. Peterson
  • Patent number: 6029366
    Abstract: The bulk material cooler/dryer apparatus of the present invention utilizes an oscillating spreader assembly in conjunction with a reciprocating discharge grate structure to achieve uniform distribution of in-flowing bulk material within a main processing chamber and also to achieve uniform and efficient discharge of the material from the chamber once processing is complete. This uniform distribution of bulk material within the processing chamber is accomplished via a spreader assembly which is mounted to the top of the chamber and which moves along two orthogonal axes. Motion with respect to each of the axes is facilitated by a pair of linear actuators, the actions of which are controlled so as to cause the stream of in-flowing material that is issued therefrom to oscillate in a sinusoidal type pattern when observed from a point above the spreader assembly.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: February 29, 2000
    Assignee: Aeroglide Corporation
    Inventors: Daniel J. Poirier, Brian D. Hinkle, Joseph M. DeWane
  • Patent number: 5956858
    Abstract: Coal or other mineral slurry is dewatered by establishing a bed of the slurry and injecting a gas stream such as air into the bed to establish turbulent flow to strip moisture. This slurry may use particles in the range 0.5 mm to 30 mm with air injected at about 10 m/sec, and suitable novel apparatus includes a centrifuge or a vibratory conveyor with a closed tunnel and transverse air flow for stripping moisture.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: September 28, 1999
    Assignee: Commonwealth Scientific and Industrial Research
    Inventors: Christopher John Veal, Stuart K Nicol, Barry Kenneth Johnston
  • Patent number: 5915814
    Abstract: An improved cyclone dryer is disclosed, having an outer cylinder, an inner cylinder, and a cone-shaped chamber. The outer cylinder has a tangential airstream orifice for injecting a high-speed stream of material and air, or other gases, into the dryer. The inner cylinder has a plurality of apertures and a plurality of deflectors that deflect air and material into a cavity defined by the inner cylinder and the cone-shaped chamber. The cone-shaped chamber, the outer cylinder, and the inner cylinder define an annular air chamber. An exhaust assembly is attached proximate the inner and outer cylinders, and is in fluid communication with the cavity.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: June 29, 1999
    Assignee: Hydrofuser Technologies, Inc.
    Inventor: Richard S. Crews
  • Patent number: 5893217
    Abstract: An agitated bed drying apparatus (20) for particulate material (152) is provided which includes a housing (22) having an elongated, essentially imperforate, flexible bed (24) therein adapted to receive the material (152). An agitator assembly (26) made up of a series of rotatable beater bar units (70) is located below the bed (24) and oriented for repeatedly impacting the bed (24) to establish an undulating bed movement for elevation and tumbling of the particulate material (152). An infrared heating unit array (28) is located above the bed (24) so as to expose the particulate material (152) to IR radiation for most effective drying thereof. Alternately, the bed (24) may be in the form of a length of material (58) mounted in tension and against translation within housing (24), or as a continuous belt (136).
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: April 13, 1999
    Assignee: CAT-TEC Industries, Inc.
    Inventors: Russell W. Johanson, Roger A. Davis, Virgil J. Macaluso, Joel J. Phillippi
  • Patent number: 5862611
    Abstract: An apparatus and method for cooling a granular material, such as a phosphate fertilizer, using ambient air is disclosed. The apparatus includes a cooling device and a conveyor assembly for feeding the material. The cooling device includes a rotatable assembly for receiving and spreading the material in the ambient air. The rotatable assembly is comprised of radiating fins with alternating recesses.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: January 26, 1999
    Inventor: Sa Cao Tran
  • Patent number: 5746007
    Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to an agitated pan type dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: May 5, 1998
    Inventor: Len W. Haleen
  • Patent number: 5659971
    Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to a nutsche type filter/dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: August 26, 1997
    Assignee: Mallinckrodt Medical, Inc.
    Inventor: Len W. Haleen
  • Patent number: 5638606
    Abstract: Improvements in centrifugal pellet dryers and more particularly to improvements in the rotor structure which includes a shaft, pellet lifter assemblies and supporting spiders which support the pellet lifter assemblies from the shaft. Each spider is made of a one-piece plate laser cut for strength, balance and simplicity. Mounting of the pellet lifter assemblies on the spider, and the spider on the shaft, are configured for easy assembly and maintenance.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: June 17, 1997
    Assignee: Gala Industries, Inc.
    Inventors: David E. Bryan, Robert K. Crowder, Samuel F. Hannah
  • Patent number: 5632097
    Abstract: An apparatus and method for final drying of harvested brine shrimp cysts preparatory to containerization, for subsequent storage and shipment. The device is portable, and may be installed upon the near shore of the shrimp bearing body of water, or upon shrimp harvesting vessels. A closed drying chamber contains a vertically arranged series of cyst drying trays, the cysts cascading downward from tray to tray by gravity assisted by vibration of the trays from top to bottom of the drying chamber. Conveying and lifting apparatus is associated with the chamber to permit the recirculation of the cysts until a sufficient degree of dryness is obtained. Heated air is introduced into the stationary drying chamber. The apparatus provides for final separation of any broken shrimp cysts still remaining.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: May 27, 1997
    Inventors: William H. Snitchler, Randall L. Scholl
  • Patent number: 5611150
    Abstract: A centrifugal pellet dryer is provided which has a housing, a generally cylindrical mesh member vertically disposed within the housing and a rotor that is coaxial with the mesh member. The rotor has lifters which tend to move a slurry of pellets and water upwardly and outwardly relative to the cylindrical mesh member so that water moving radially through the mesh member is separated from the pellets which are retained by the mesh member. The rotor has a hollow interior portion that communicates with the bottom of the rotor so that the slurry of pellets of water are introduced into the dryer through the hollow interior of the rotating rotor. The slurry of pellets and water is distributed uniformly about the periphery of the mesh member by the rotating rotor and the rotation of the rotor enhances the centrifugal force of the slurry to initially dewater the slurry more effectively as the water moves radially outwardly through the mesh member.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: March 18, 1997
    Assignee: The Conair Group, Inc.
    Inventor: Robert G. Yore, Jr.
  • Patent number: 5555639
    Abstract: An anti-clogging rotary drum dryer for drying stranded material is provided which includes a tubular, rotatable housing having an inlet for receiving drying gas and wet material, as well as first and second, apertured, telescopically interfitted tubes within the housing and defining the dryer flow path. The first and second tube apertures are designed for passage of the stranded material without clogging, and filler and lifting flight structure is provided within the dryer for assuring smooth, trouble-free operation.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: September 17, 1996
    Assignee: Productization Inc.
    Inventors: Jeffrey T. Livingston, Andrew D. Livingston
  • Patent number: 5546676
    Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to an agitated pan type dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: August 20, 1996
    Assignee: Mallinckrodt Medical, Inc.
    Inventor: Len W. Haleen
  • Patent number: 5544425
    Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to a nutsche type filter/dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: August 13, 1996
    Assignee: Mallinckrodt Medical, Inc.
    Inventor: Len W. Haleen
  • Patent number: 5544424
    Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to a conical screw type mixer/dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: August 13, 1996
    Assignee: Mallinckrodt Medical, Inc.
    Inventor: Len W. Haleen
  • Patent number: 5372458
    Abstract: A method is provided for treating used potassium chloride (KCl) drilling mud for disposal. The process comprises feeding the mud into one end of a rotary tube, advancing the mud through the rotating tube and heating the mud by cascading action using lifters, to expose it to a hot gas stream, thereby partially drying the mud to lumps, further modifying the lumps by contacting them with a burner flame to form clinker pellets, and finally contacting the clinker pellets with a second flame to complete the drying process, producing dried clinker pellets containing the majority of the KCl in the mud, the pellets having a structure that resists the leaching action of water. The pellets further lend themselves to being evenly distributed over fields, so that unwanted excessive concentrations of KCl can be avoided.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: December 13, 1994
    Inventors: Henry Flemmer, Arne E. Hansen
  • Patent number: 5333396
    Abstract: A drying apparatus for removing moisture content from a substance to be dried, comprises a peripheral wall defining a working space for drying the substance, the peripheral wall defines at least an inlet for charging the substance to be dried, an outlet for taking the dried substance therefrom and a drain. A rotary spiral blade assembly is disposed within the working space and has a lower end, at which the substance accumulated on the bottom of the working space rides on a transporting surface of the rotary spiral blade assembly. The rotary spiral blade assembly is rotatable at a predetermined rotation speed sufficient for forcing the substance on the transporting surface to climb up toward the upper end of the rotary spiral blade assembly. The rotary spiral blade assembly defines a path for the substance reaching at upper end thereof to fall down to the bottom.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: August 2, 1994
    Inventor: Masao Kanai