With Heating Or Cooling Patents (Class 209/238)
  • Patent number: 10250477
    Abstract: A method which includes: obtaining, by a controller, at least two transmission paths between a first edge node and a second edge node; obtaining, by the controller according to bandwidths of the at least two transmission paths, a maximum bandwidth provided by a cluster system, where a bandwidth of each of the transmission paths is equal to a smallest bandwidth in bandwidths of all transmission links in the transmission path, and the maximum bandwidth is less than a sum of bandwidths of at least two transmission links connected to the first edge node; and announcing, by the controller, the maximum bandwidth to a node outside the cluster system by using the first edge node and/or the second edge node. According to the method, accuracy of a maximum bandwidth that is announced by a cluster system to a node outside the cluster system can be improved.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 2, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei Luo, Hongkun Li
  • Patent number: 10132020
    Abstract: An apparatus for a thermal treatment of a textile web includes at least one drum with a perforated casing surface around which a material web can be at least partially wrapped, at least one connecting element, and a patterning shell with a plurality of openings separated by ridges fitted onto the casing of the drum. The patterning shell includes at least two segments detachably connected with aid of the at least one connecting element. The at least one connecting element is arranged on or integrated into a ridge.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 20, 2018
    Assignee: TRUETZSCHLER GMBH & CO. KG
    Inventor: Ullrich Muenstermann
  • Patent number: 9677353
    Abstract: Methods and systems are disclosed employing a shale shaker for processing a mixture of drilling fluid and solids with multiple screen assemblies and conversion apparatus for switching flow to the screen assemblies between series flow and parallel flow; and in one aspect, a screen or screens for screening lost circulation material.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 13, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 9643111
    Abstract: A screen panel assembly includes a screen panel and one or more raised screen components, wherein at least one of the raised screen components is disposed on the screen panel. Furthermore, each of the one or more raised screen components includes at least one inclined screen surface that defines a first plane that is oriented at a first angle relative to said screen panel. Additionally, the first plane is substantially aligned with a second plane that is oriented at a second angle relative to a third plane that is perpendicular to a displacement vector along which the screen panel assembly is accelerated by a vibratory separation device.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 9, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventors: Thomas Robert Larson, Paul William Dufilho
  • Patent number: 9370780
    Abstract: Methods, systems, and devices to remove slag, sands, and other contaminants from a scrap metal feed. The scrap separation device uses indirect heat provided by one or more heaters which are directed at an external surface of an outer cylinder and a unique arrangement of paddles on an inner surface of an inner cylinder to provide thermal and kinetic energy to dislodge the slag, sands, and other contaminants, and apertures through the inner cylinder to allow the dislodged contaminates to pass to the outer cylinder. The system includes at least one magnetic separation unit, a screening unit, and a scrap separation device. The system removes slag, sands, and other contaminants from a scrap metal feed, and partitions the cleaned scrap metal into various size grades, and the recovered contaminating slag and sands into various size grades.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: June 21, 2016
    Inventors: Shane T. Nolan, John S. Alexander, III, John S. Alexander, Jr.
  • Patent number: 9199279
    Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: December 1, 2015
    Assignee: Derrick Corporation
    Inventors: Keith Wojciechowski, Christian Newman
  • Patent number: 9073088
    Abstract: A centrifugal sieve and method utilizes centrifugal force in rapidly-rotated cylindrical or conical screens as the primary body force contributing to size segregation. Within the centrifugal acceleration field, vibration and/or shearing flows are induced to facilitate size segregation and eventual separation of the fines from the coarse material. Inside a rotating cylindrical or conical screen, a separately-rotated screw auger blade can be used to transport material along the rotating cylinder or conical wall and to induce shearing in the material.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: July 7, 2015
    Inventors: Otis Walton, Christopher Dreyer, Edward Riedel
  • Publication number: 20140352623
    Abstract: A process for reprocessing soiled animal bedding material commingled with animal manure. The soiled animal bedding material is separated in a shaker to send at least a preponderance of said manure to a holding tank. Said bedding material is subsequently dried and compacted to form a compacted product. Alternatively, said bedding material is dried (without a compacting step) to form a product.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventor: Shelly Ann Townsend
  • Patent number: 8869988
    Abstract: A cooler for particulate product includes a substantially enclosed housing. A first cooling screen is disposed in the housing and is configured to receive the product. The first cooling screen is configured to move the product along a surface by gravity when the first cooling screen vibrated. A duct is coupled to the first cooling screen to move cooling fluid through the first cooling screen. A second cooling screen is disposed in the housing below the first screen and is configured to receive the product after discharge from the first screen. The second screen is configured to move the particulate product along a surface when vibrated. A second duct is coupled to the second screen to move cooling fluid through the screen. A collector receives the particulate product after moving along a surface of the second screen. A vibrator is coupled to the housing and vibrates the housing.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: October 28, 2014
    Assignee: M-I L.L.C.
    Inventors: Henry P. Stachura, Donald J. Canavan, Joachim M. Zaun
  • Patent number: 8235219
    Abstract: The device according to the invention for separating or classifying material to be fed into at least two different grain fractions comprises a screen device, which is formed by rotatable elements, particularly a roller table screen, wherein at least one finer grain fraction passes between the rotatable elements and means are provided for cooling the rotatable elements.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: August 7, 2012
    Inventor: Detlev Kupper
  • Patent number: 8104621
    Abstract: Process for classifying a particulate water-absorbing resin using a sieving apparatus at a reduced pressure compared with the ambient pressure and a sieving apparatus for classifying a particulate water-absorbing resin at a reduced pressure compared with the ambient pressure.
    Type: Grant
    Filed: December 31, 2005
    Date of Patent: January 31, 2012
    Inventors: Matthias Weismantel, RĂ¼diger Funk, Thomas Daniel, Uwe Stueven
  • Publication number: 20090277818
    Abstract: A cooler for particulate product includes a substantially enclosed housing. A first cooling screen is disposed in the housing and is configured to receive the product. The first cooling screen is configured to move the product along a surface by gravity when the first cooling screen vibrated. A duct is coupled to the first cooling screen to move cooling fluid through the first cooling screen. A second cooling screen is disposed in the housing below the first screen and is configured to receive the product after discharge from the first screen. The second screen is configured to move the particulate product along a surface when vibrated. A second duct is coupled to the second screen to move cooling fluid through the screen. A collector receives the particulate product after moving along a surface of the second screen. A vibrator is coupled to the housing and vibrates the housing.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 12, 2009
    Applicant: M-I L.L.C.
    Inventors: Henry P. Stachura, Donald J. Canavan, Joachim M. Zaun
  • Patent number: 7591375
    Abstract: A vibratory conditioner includes a plurality of screens having a planar surface through which there is a material feed opening, wherein each screen is retained in vertical alignment such that all planar surfaces are parallel, a chamber within which the parallel screens are retained, means for conditioning air within the chamber to a predetermined temperature and a predetermined humidity level, and a vibratory generator operable to vibrate the chamber and fluidize particles of material retained on a top surface of each screen and to move the fluidized particles in a first direction.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: September 22, 2009
    Assignee: M-I L.L.C.
    Inventor: Eric Johnson
  • Publication number: 20080202987
    Abstract: Process for classifying a particulate water-absorbing resin using a sieving apparatus at a reduced pressure compared with the ambient pressure and a sieving apparatus for classifying a particulate water-absorbing resin at a reduced pressure compared with the ambient pressure.
    Type: Application
    Filed: December 31, 2005
    Publication date: August 28, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Matthias Weismantel, Rudiger Funk, Thomas Daniel, Uwe Stueven
  • Patent number: 7017755
    Abstract: Rear ends of pushing rods 40 are axially connected to a support base 50, which is movably engaged with guide rails 60. A drive unit 70 is disposed to rotatably move wire belts 74 between wheels 73 and 71 at longitudinal front and rear ends of the guide rails 60, and the support base 50 is connected to the wire belts 74. The drive unit 70 is activated to guide the pushing rods 40 by the guide rails 60 so to make pushing and pulling operation of the pushing rods 40. A door 33 which is disposed at the back wall of a static grate 31 in a clinker cooler 30 is opened to fit the pushing rods 40 into a seal material 34 on the opening to push a large lump of coating C2 retained on the static grate 31. The pushing rods 40 have a double tube structure and are cooled by injecting cooling water from supply pipes 45.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: March 28, 2006
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masura Nakamura, Tsuyoshi Yamamoto, Asaaki Nishioka, Shigetoshi Toyooka, Yasufumi Matsuo, Shunichi Nagasaki
  • Patent number: 6907994
    Abstract: There is provided a process for converting wet fly ash into a useful product such as cement replacement or industrial filler. A first amount of wet fly ash is provided. The wet fly ash is fed into a mixing chamber. An amount of aggregate, such as stone, is provided. The aggregate is also fed into the mixing chamber where the wet fly ash is mixed with the aggregate. The mixed wet fly ash and aggregate is fed into a drying chamber where the mixture is heated, thereby drying the fly ash and heating the aggregate. The heated aggregate is separated from the fly ash. The heated aggregate is fed back into the mixing chamber. A second amount of wet fly ash is added to the mixing chamber where is it mixed with the heated aggregate. The heated aggregate assists in drying the second amount of wet fly ash. Once in cycle, the process is continuous.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 21, 2005
    Assignee: C.A.S.T. Minerals, Inc.
    Inventors: William S. Bradley, Robert L. Carnahan, Frank A. Elk, Riley D. Robbins
  • Patent number: 6820749
    Abstract: A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a field work site where the tower is to be erected on a foundation, aligning the modules and stacking the modules in layers and then bolting adjacent modules together. A large stationary, aggregate processing screening tower has weldment modules preassembled with aggregate processing equipment internal within the modules. The preassembled modules are stacked up on one another and secured together and can receive aggregate product at the top module and the product is processed by screening and sizing as it moves downwardly by gravity through the modules and their processing equipment for final clarification and collection of the product.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: November 23, 2004
    Assignee: Astec Industries, Inc.
    Inventors: J. Don Brock, William R. Gray
  • Patent number: 6730161
    Abstract: A finely ground powder comprising a mixture of fly ash and a compound selected from the group consisting of alkali and alkaline earth metal salts, alkali and alkaline earth metal oxides, and metakaolinite. Preferably, the amount of said compound is 0.4 to 1% by weight of the powder. A composition comprising Portland cement and finely ground powder, said finely ground powder being a mixture of fly ash and a compound selected from the group consisting of alkali and alkaline earth metal salts, alkali and alkaline earth metal oxides, and metakaolinite. A method for the treatment of fly ash comprising the step of subjecting a mixture of fly ash and a compound selected from the group consisting of alkali and alkaline earth metal salts, alkali and alkaline earth metal oxides, and metakaolinite, preferably in which the fly ash has been treated for removal of carbon and in particular to increase the amount of crystalline phase.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: May 4, 2004
    Assignee: Process Research Ortech, Inc.
    Inventors: Vaikuntam Iyer Lakshmanan, Ramamritham Sridhar, Noel Paul Mailvaganam, V. Mohan Malhotra
  • Patent number: 6601708
    Abstract: A process and apparatus for processing polyvinylacetate and other similar ingredients of a gum base or chewing gum product are disclosed. The ingredient materials are separated into individual pieces by a lump breaker and conveyed through a pneumatic conveying system to a cyclone receiver and holding bin. A volumetric feeder feeds the material into a side feeder which in turn introduces and feeds the material to the main continuous extruder used for making the final gum base or gum product. A unique adapter connects the side feeder to the main extruder which allows repair and/or modification of the side feeder without separating it from the main extruder.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: August 5, 2003
    Assignee: Warner Lambert Company
    Inventors: Marc Degady, Kevin R. Tebrinke, James A. Duggan, Susan B. Filardo, Tony R. Puri, Arthur W. Upmann
  • Patent number: 6575303
    Abstract: A system for controlling the operation of a first item of equipment for processing materials in connection with the production of a product which includes aggregate materials and a volatile component includes an oven, a gradation assembly having a plurality of screens, and a mechanism for transporting aggregate materials from the oven to the gradation assembly. The system also includes a mechanism for controlling the operation of an item of equipment if one or more of the ratios of the weight of the aggregate materials that are retained on any of the screens or that pass through all of the screens to the total weight of the aggregate materials fails to meet a predetermined standard. A preferred embodiment of the system also includes a mechanism for controlling the operation of a second item of equipment for combining asphalt cement and aggregate materials if the ratio of the weight of the asphalt cement in a sample of the product to the total weight of the sample fails to meet a predetermined standard.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: June 10, 2003
    Assignee: AI Enterprises, Inc.
    Inventors: J. Donald Brock, Herbert E. Jakob, Michael E. Barrett, R. Ronald Collins, Gary P. Heeszel, David F. Peaks
  • Patent number: 6538416
    Abstract: A reservation is created within a network by sending a stateless probe from a source node toward a destination node. The stateless probe determines a reservation path between the source node and the destination node via intermediate routers in the network. A determination is made if the destination node agrees to create the reservation path to the source node. If the destination node agrees to create the reservation path to the source node, the reservation path is established by returning a corresponding response message to the source node. Links included in more than one established reservation path to the same destination node are identified. The multiple reservations on such links are aggregated. This aggregation creates a tree of reservations rooted at the destination node.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 25, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Ellen L. Hahne, Ping P. Pan, Henning G. Schulzrinne
  • Publication number: 20020148760
    Abstract: A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a field work site where the tower is to be erected on a foundation, aligning the modules and stacking the modules in layers and then bolting adjacent modules together. A large stationary, aggregate processing screening tower has weldment modules preassembled with aggregate processing equipment internal within the modules. The preassembled modules are stacked up on one another and secured together and can receive aggregate product at the top module and the product is processed by screening and sizing as it moves downwardly by gravity through the modules and their processing equipment for final clarification and collection of the product.
    Type: Application
    Filed: April 17, 2001
    Publication date: October 17, 2002
    Applicant: Astec Industries, Inc.
    Inventors: J. Don Brock, William R. Gray
  • Publication number: 20020134709
    Abstract: An improved wire cloth material and process to enhance wire cloth dimensional stability, reduce and slow abrasive, deterioration, decrease brittleness and reduce residual stress attendant to the manufacturing and weaving process. In a preferred embodiment, the wire cloth is subjected to a liquid cryogenic material for a determinable period of time which is sufficient to increase molecular bonding energy and achieve a structural balance by effecting the transformation of austenite to denser more refined martensite. The wire cloth is then withdrawn from the cryogenic material and allowed to warm gradually at a rate of controlled temperature change. To reduce brittleness of the martensitic structure following the warming phase, the wire cloth may be optionally introduced to a subsequent heat application phase in two or more passes and allowed to again gradually return to ambient atmospheric temperature.
    Type: Application
    Filed: January 23, 2002
    Publication date: September 26, 2002
    Inventor: Russell Allen Riddle
  • Patent number: 6446812
    Abstract: Disclosed is a separator for separating a meltable solid from a mixture with other solids. The separator has a tank for holding a fluid; a container at least partially inside the tank, made at least in part of a screen through which the fluid can pass and melted solids can flow, but through which the unmelted solid material will not flow; and a heater for heating the fluid above the melting point of the meltable solids. Also disclosed is a method of separating a meltable solid from a mixture with other solids. The mixture of solids is placed in the container of the separator and the fluid is heated to a temperature above the melting point of the meltable solid, whereby the meltable solid flows through the screen out of the container, while the other solids remain within the container.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: September 10, 2002
    Assignee: Glenn Springs Holdings, Inc.
    Inventors: Charles N. Sturdivant, George Walter Luxbacher, Mohan Singh Saran, Kenneth Raburn Price
  • Patent number: 6439391
    Abstract: A vibratory separator apparatus for separating components from a fluid material stream fed to the vibratory separator apparatus, the vibratory separator apparatus, in certain aspects, having separator apparatus for separating components of the fluid material stream, and heating apparatus for heating the fluid material stream. A screening system with a screen mounting basket, at least one screen mounted on the basket, and heating apparatus for heating the at least one screen.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: August 27, 2002
    Assignee: Tubo Scope I/P, Inc.
    Inventor: Kenneth Wayne Seyffert
  • Patent number: 6164455
    Abstract: The present invention provides a process for classifying a particulate hydrophilic polymer and a sieving device, which can carry out a classification in a small separation particle diameter with high efficiency and exhibit classification ability inherent in the sieving device. The process comprises the step of classifying a particulate hydrophilic polymer in dry particle size with a sieving device, wherein the sieving device is used in a heated and/or thermally insulated state. The sieving device comprises a thermally insulating means.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 26, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroyuki Kakita, Tatsuo Maruo, Sumio Okuda, Takumi Hatsuda
  • Patent number: 5556445
    Abstract: A method for treating solid municipal waste material including placing solid municipal waste in a rotating chamber having an interior at ambient pressure, heating the waste at ambient pressure, and controlling the moisture content of the waste.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: September 17, 1996
    Assignee: Mark K. Quinn
    Inventors: Mark K. Quinn, Bruce E. Unangst
  • Patent number: 5318184
    Abstract: A sludge drying system using exhaust air from a furnace in a direct heat, rotary drum dryer to simultaneously dry and pelletize the sludge. The dried sludge particles exiting the dryer is entrained in the exhaust air. The sludge particles are separated from the exhaust air and then classified according to size. The under sized particles are recycled back to a mixer for mixing with incoming wet sludge. The oversized particles are conveyed to a crusher or mill for reducing the oversized particles down to the desired product size. The medium-sized particles can be selectively directed to be recycled with the undersized particles or collected as product. The exhaust air is treated in a treatment section, and then divided into two exhaust air streams or portions. A first portion of the exhaust air is discharged into the environment, while the second, larger portion of the exhaust air is recycled back to the furnace to be used to dry the sludge in the drier.
    Type: Grant
    Filed: September 10, 1992
    Date of Patent: June 7, 1994
    Inventor: Georg Krebs
  • Patent number: 5248042
    Abstract: A mobile screening apparatus includes a horizontal rotary drum preferably fed by underflow from a prescreening device that is reversible endless belt of screening grizzly bars. The belt reverses for expelling oversize material caught between bars. Force needed to turn the drum is monitored, as a way of controlling drum feeding by the prescreening device, for preventing protracted over-filling of the drum. The screening drum includes an outer peripheral cage of longitudinal bars, at least some of which preferably are movably mounted. A set of wires is circumferentially wrapped about the bar cage, with sufficient flexibility to permit the wires to locally elastically flex away from the bars sufficient to pass slightly oversize material and facilitate cleaning of debris lodged in spaces among the bars and wires. Brushes help dislodge lodged debris.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: September 28, 1993
    Assignees: Ossi Rissanen, Vernon F. Chevalier
    Inventor: Mauri Kuhmonen
  • Patent number: 5098586
    Abstract: A method for the separation of granulate and water in an after-treatment section following a granulator in which a vibrating screen receives the water and granulate mixture. In order to obtain low residual moisture without subsequent drying, the granulate-water mixture on the screen is subjected briefly to a vacuum over the entire width of the vibrating screen at longitudinally spaced locations, in alternation, from above and below the screen within the first third of the length of the screen.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: March 24, 1992
    Assignee: Werner & Pfleiderer GmbH
    Inventor: Joachim Rudolph
  • Patent number: 5059310
    Abstract: A vertical set of sieves receives the particulate material from a vibrating trough conveyor above the set and is vibrated by an agitator on the machine frame. The sieves are spread apart and then tilted to dump the collected particles into respective funnels. The set can then be swung back and contracted for the the next stage. The funnels are connected to collectors which are automatically weighted.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: October 22, 1991
    Assignees: Rhewum GmbH, Quarzwerke GmbH
    Inventors: Manfred Fischer, Horst Peterling, Johannes Kaiser, Klaus Keuser, Wilheim Wust
  • Patent number: 4955425
    Abstract: Apparatus for non-impact handling of foundry castings utilizes a sand pervious basket to receive a sand mold and casting and to segregate the casting from the mold. A turntable assembly lifts and translates the basket to a secondary conveyor which removes the casting for further processing. The secondary conveyor may be a walking beam conveyor adapted to operate inside a quenching tank and the basket adapted to align with the walking beam conveyor for removal of the casting.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 11, 1990
    Inventor: James F. McKenna
  • Patent number: 4680112
    Abstract: An apparatus for treating solids with a liquid at elevated or ambient temperatures comprises an assembly of vertical Pot (1) sealed by Lid (3) in which Pot (1) contains the liquid and horizontal low level stirring means (6) inducing a liquid vortex and contains disposed above stirring means (6) horizontal spokes (9) offering minimum interference with the vortex and contains vertical open cylinder (11) bottomed by central apertured layer (10), being liquid permeable but supporting solids impermeably. The vortex rises through spokes (9) up internal vertical wall of Pot (1) and into diagonally opposite inlets (18) of horizontal tube (16) suspended internally from lid (3) above cylinder (11). Liquid downpours through exit (19) of tube (16) through solids in cylinder (11) and through layer (10) to re-enter the vortex.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: July 14, 1987
    Assignee: Trenchbond Limited
    Inventor: Alan Carrol
  • Patent number: 4635860
    Abstract: A rotating grizzly having a downwardly slanting axis of rotation for reducing the size of agglomerated mineral particles comprising a rotatable framework made up from a series of spaced axial baffles interconnected by a series of parallel spaced bars wherein the baffles extend inwardly toward the axis of rotation a greater distance than the bars.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: January 13, 1987
    Inventor: Jan Kruyer
  • Patent number: 4585354
    Abstract: An elongated drum rotatable about its horizontal longitudinal axis is surrounded by a sequence of cylindrical screens having different size mesh openings. A burner is located at one end of the drum. A feeder delivers stone chips into the end of the drum opposite the burner, and another feeder delivers used paving asphalt into the end of the drum at which the burner is located. The asphalt feeder has an elbow which passes through the burner flame and an outlet located outside the flame. Openings at the burner end of the drum provide communication between the interior of the drum and an annular space between the drum and the screens. A chimney for discharging dust is located at the stone chips feeder end of the drum.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: April 29, 1986
    Assignee: Linhoff & Thesenfitz
    Inventor: Klaus Thesenfitz
  • Patent number: 4543180
    Abstract: A device for separating fine articles as sand from a sludge containing ultrafine articles comprises a continuously rotated substantially horizontal drum having a helical web at the peripheral inside thereof. The mass flow to be separated is deposited in the drum at a place spaced from both ends of the drum. The drum moves the sand at the bottom of the drum to the discharge end thereof, where a water feeding system is arranged providing an oppositely directed fresh water flow which mixes with said ultrafine particles forming a sludge. The sand is elevated at the discharge end of the drum by a plurality of buckets and discharged via an inclined discharge chute through an outlet opening of the drum. The sludge is discharged through the opposite front wall opening through which the mass flow is fed within a feeding tube.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: September 24, 1985
    Assignee: Stetter GmbH
    Inventor: Rudolf Riker
  • Patent number: 4526679
    Abstract: A mixture of low melting particles and high melting particles is heated to a temperature above the melting point of the low melting particles and below the melting point of the high melting particles thereby melting the low melting particles and forming a bond between the low melting particles and the high melting particles which bond is strengthened on cooling, the resulting agglomerate containing the low melting particles being separated from the unbonded high melting particles.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: July 2, 1985
    Assignee: Texaco Inc.
    Inventor: Ronald L. Litzinger
  • Patent number: 4443332
    Abstract: Apparatus for transferring heat between solid particles includes placing a first granular material composed of particles of a first size on the upper side of a downwardly sloping vibratory screen. The openings in the screen are sufficiently small to prevent passage therethrough of the particles of the first material. A second granular material composed of particles of a second size, smaller than the first size, is spread over the first material on the screen to mix with and sift through the first material as the screen is vibrated. The size of the particles of the second material is small enough to allow passage through the openings in the screen. The first and second materials are at different temperatures so that as the particles of the two materials mix, heat is transferred between the particles. After mixing and heat transfer, the first material flows off the lower edge of the screen where it can be gathered, and the second material flows through the screen where it likewise can be gathered.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: April 17, 1984
    Assignee: Oros Company
    Inventor: Noel H. de Nevers
  • Patent number: 4415444
    Abstract: Cooling air is introduced into the vibrating chamber of a sand reclaiming apparatus. A plurality of hollow inverted V-shaped ribs, extending longitudinally along the floor of the chamber distribute the air from an external source over the bottom region of the chamber. A gap is included between the lower edges of the ribs and the chamber floor. The air traveling within the hollow of the ribs is expanded about the lower edges of the ribs and directed upwardly through the bonded sand particles to effect cooling.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: November 15, 1983
    Assignee: General Kinematics Corporation
    Inventor: William G. Guptail
  • Patent number: 4359381
    Abstract: An apparatus for regenerating used mixtures for road pavement including an asphalt concrete mixture and a cement concrete mixture is provided with a first vibration sieve, conveyer, passage, roof, transferring means, guide means such as a V-shape plate and a screw conveyer, spray means such as water supply pipes, discharging means such as a hoist device, and a second vibration sieve. The asphalt concrete mixture together with others are sorted by the first vibration sieve, transferred in a given direction by the transferring means such as a container, heated by the hot water from the spray means, subdivided and sorted by the second vibration sieve.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: November 16, 1982
    Inventor: Michio Jinno
  • Patent number: 4257168
    Abstract: An apparatus for and method of drying agglomerated moist particulate material, the particles of which when dry have a very low density. Drying is effected by supporting the material on a screen within a retainer, and by applying heat to the material in contact with the screen by way of an electrical or heat exchange type heating element. Vaporized moisture is extracted by way of a vent which extends upwardly through the retainer from a position adjacent the screen, so that the vapour is caused firstly to flow down through the screen and then upwardly through the vent.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: March 24, 1981
    Assignee: Blue Metal and Gravel Pty. Ltd.
    Inventors: John Carroll, Harry Dearing, Keith Swain, Warren Naughton
  • Patent number: 4211274
    Abstract: An apparatus for separating castings from moulding sand is provided with a container revolving around the longitudinal horizontal or near horizontal axis. The side surface of the container is provided with suitable slots ensuring an inflow of air into this container. The slots are located at one or several points before a sieve wall located at the end of the container. The sieve wall is used for separation of the moulding sand from the castings. The side surface of such a container can be formed by a coaxial combination of cylindrical and/or conical drums of diameters increasing in steps toward the outlet opening of the container and thus forming annular slots. Air flow is initiated by a pressure difference inside and outside the container this being obtained by exhausting the dusted air and water vapor through casing of outlet opening and covering outlet opening.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: July 8, 1980
    Assignee: Przedsiegiorstwo Projektowania I Wyposazania Odlewni "Prodlew"
    Inventors: Stanislaw Slowinski, Stanislaw Vasina, Jerzy Pasich, Jerzy Kosek, Stanislaw Glownia
  • Patent number: 4148724
    Abstract: A rail construction for mounting and tensioning an electrically heated screen on and between a pair of longitudinally extending, spaced frame members. The rail preferably is formed as an aluminum extrusion having a relatively large metal mass in cross section. The rail has a modified channel shape in cross section with an upper curved flange, a lower angled flange and an intervening projection. The upper curved flange is enclosed with electrical insulation and is adapted to engage a vertical wall of one of the frame members when mounted thereon. The lower angled flange has a hook shape complementary to a hook shape formed on the edge of the screen cloth. The intervening projection forms a wedge-shaped channel in combination with the lower hook-shaped flange of the rail. The wedge-shaped channel has an angled surface against which a complementary wedge-shaped clamping bar clamps the hooked screen edge.
    Type: Grant
    Filed: December 13, 1977
    Date of Patent: April 10, 1979
    Assignee: Hannon Electric Company
    Inventor: Thomas W. Hannon
  • Patent number: 4100059
    Abstract: Steam is injected into water to regenerate asphalt waste which is heated in the water to a predetermined temperature. Such heated asphalt waste is mechanically subdivided in the water into aggregate grains each having its surface coated with a thin asphalt film.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: July 11, 1978
    Inventor: Michio Jinno
  • Patent number: 3942644
    Abstract: 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 other end. The drum wall first has an impermeable part which is followed by a perforate part for the discharge of moulding sand. An underlying descriptive line of the drum viewed in the direction from the inlet end to the outlet end slopes upwardly at least for a part and this gives rise to several embodiments.
    Type: Grant
    Filed: September 27, 1973
    Date of Patent: March 9, 1976
    Assignee: Expert N.V.
    Inventor: Herbert Vissers
  • Patent number: RE29709
    Abstract: 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 other end. The drum wall first has an impermeable part which is followed by a perforate part for the discharge of moulding sand. An underlying descriptive line of the drum viewed in the direction from the inlet end to the outlet end slopes upwardly at least for a part and this gives rise to several embodiments.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: July 25, 1978
    Assignee: Expert, N.V.
    Inventor: Herbert Vissers, deceased