Heating Apparatus Element Having Protective Cooling Structure Patents (Class 432/233)
  • Patent number: 10914007
    Abstract: The present disclosure relates to a substrate processing apparatus and a substrate processing method using the same, the substrate processing method including: introducing a substrate into a chamber; processing the substrate while heating the substrate by using a heat source unit provided in the chamber; and reciprocating at least any one of the substrate and the heat source unit in an extending direction of the substrate. Thus, while the substrate is processed, the temperature of the substrate may be uniformly adjusted, and the efficiency of thermal processing of the substrate may thereby be improved.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: February 9, 2021
    Inventors: Dae Seok Song, Hyun Jin Park
  • Patent number: 8911231
    Abstract: A substrate-treatment installation includes a vacuum chamber, a substrate treatment device within the vacuum chamber, a substrate transport device within the vacuum chamber for guiding a substrate along a longitudinal direction in a substrate transport plane past the substrate treatment device, and a device for controlling substrate temperature. The substrate temperature controlling device includes a heat-absorbing cooler on one side of the substrate transport plane and an insulation member selectively displaceable between at least two different positions to vary extent of thermal shielding of the heat-absorbing cooler relative to the substrate transport plane by the insulation member.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: December 16, 2014
    Assignee: VON ARDENNE Anlagentechnik GmbH
    Inventors: Hubertus Von Der Waydbrink, Thomas Meyer, Michael Hentschel, Reinhardt Bauer, Andrej Wolf, Hans-Christian Hecht
  • Publication number: 20140287375
    Abstract: A heat insulation structure, which has a cylindrical side wall part formed in a multilayer structure, includes: a cooling gas supply port provided in an upper portion of a side wall outer layer disposed in an outer side of the side wall part; a cooling gas passage provided between a side wall inner layer disposed in an inner side of the side wall part and the side wall outer layer; a space provided in an inner side of the side wall inner layer; a plurality of blowout holes provided in the side wall inner layer for distributing cooling gas from the cooling gas passage to the space; a buffer area continuously provided in the cooling gas supply port and the cooling gas passage; and a throttle part configured to reduce a cross-sectional area of a boundary surface between the buffer area and the cooling gas passage.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tetsuya KOSUGI, Motoya TAKEWAKI, Hitoshi MURATA, Masaaki UENO
  • Publication number: 20140227651
    Abstract: The invention relates to a roller hearth furnace for heating workpieces, comprising at least one furnace chamber for receiving the workpieces, the chamber having at least two lateral furnace walls. At least one transport roller for transporting the workpieces through the furnace chamber is arranged inside the furnace chamber, and each of the furnace walls has at least one opening through which the transport roller can be guided. At least one rolling bearing unit is arranged on each of the outer sides of the furnace walls, said rolling bearing unit being designed to accommodate and support the transport roller outside the furnace chamber.
    Type: Application
    Filed: March 23, 2012
    Publication date: August 14, 2014
    Inventor: Rolf-Josef Schwartz
  • Patent number: 8764432
    Abstract: A high-pressure press is disclosed which includes a high-pressure vessel enclosing a high-pressure chamber and a high-pressure medium; a housing, separating a volume from the high-pressure press chamber, arranged for holding a fluid; a fan arranged in the high-pressure press chamber outside the housing for circulating the high pressure medium in the high-pressure press chamber; a motor, arranged in the housing and operatively connected to the fan for driving the fan; a cooling device for cooling a portion of the housing wall; and a pumping device arranged for circulating the fluid, the fluid providing a transfer of cold from the portion of the housing wall to the motor, the cooled circulation of the fluid being separated from the high-pressure press chamber by the housing.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: July 1, 2014
    Assignee: Avure Technologies AB
    Inventor: Roger Thunholm
  • Publication number: 20130337395
    Abstract: The present invention relates to an arrangement for treatment of articles by hot pressing. The pressing arrangement for treatment of articles by hot pressing comprises a pressure vessel including: a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles. A heat exchanger unit is arranged below said furnace chamber and adapted to exchange thermal energy with pressure medium when the pressure medium is passing through said heat exchanger unit. According to the present invention, at least one first and second inlet or aperture, respectively, for passage of alternating warm and cold pressure medium are arranged in the heat insulated casing in proximity to the heat exchanger unit (i.e. at approximately same the height as, above or below the heat exchanger unit). The at least one second inlet (or lower inlet) is below the at least one first inlet (or upper inlet) but at same height as or below the heat exchanger unit.
    Type: Application
    Filed: January 3, 2011
    Publication date: December 19, 2013
    Applicant: AVURE TECHNOLOGIES AB
    Inventor: Mats Gärdin
  • Patent number: 8567099
    Abstract: A system and process for removing an inorganic salt from a catalyst roaster belt is disclosed. The system includes an apparatus with a drying vessel having a catalyst roaster belt inlet, a catalyst roaster belt outlet, a heating medium inlet, and a heating medium outlet, wherein the catalyst roaster belt inlet and the catalyst roaster belt outlet are spaced apart along a first direction, the heating medium inlet and the heating medium outlet are spaced apart along a second direction, the heating medium inlet is spaced apart from the catalyst roaster belt inlet in the second direction, and the catalyst roaster belt inlet is between the heating medium inlet and the heating medium outlet along the second direction. The system includes an acid bath and a moveable catalyst roaster belt extending from the acid bath through the catalyst roaster belt inlet and through the catalyst roaster belt outlet.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: October 29, 2013
    Assignee: Dow Technology Investments LLC
    Inventors: Hua Bai, Ralph S. Kruska
  • Patent number: 8529251
    Abstract: A rotary kiln includes: a cylindrical shell that includes a supply-side end portion and a discharge-side end portion at both ends in an axial direction of the shell, and a heat treatment chamber which is defined inside the shell and in which a heat treatment is performed on a process material; a supply-side holder that holds the supply-side end portion; a discharge-side holder that holds the discharge-side end portion; a supply-side rotary shaft that allows rotation of the supply-side holder; and a discharge-side rotary shaft that allows rotation of the discharge-side holder. The shell is rotated about its own axis by rotating at least one of the supply-side rotary shaft and the discharge-side rotary shaft.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 10, 2013
    Assignee: Takasago Industry Co., Ltd.
    Inventors: Hiroki Kumagai, Fumihiko Kato, Sadahiko Kawasaki
  • Patent number: 8506284
    Abstract: A method of cooling a load provided in a load compartment in a furnace chamber of a furnace of a hot isostatic pressing device includes releasing hot pressure medium from the load compartment. Cool pressure medium is provided for enabling it to fall through the released hot pressure medium outside the load compartment. The thus obtained mixed pressure medium is led into the load compartment. A hot isostatic pressing device includes a load compartment having an aperture near an upper portion thereof configured to vent warm pressure medium into a region surrounding the compartment and a conduit configured to introduce cool pressure medium into the region surrounding the compartment for mixing with the warm medium. The compartment also includes an aperture near a lower portion thereof configured to receive a mix of warm and cool pressure medium from the region surrounding the compartment.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Flow Holdings GmbH (SAGL) Limited Liability Company
    Inventor: Carl Bergman
  • Patent number: 7972572
    Abstract: A reactor vessel liner system includes a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant. The plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: July 5, 2011
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Steven P. Fusselman, Stephen Arthur Yows, Bryan William McEnerney, Kenneth M. Sprouse
  • Publication number: 20110108248
    Abstract: An apparatus and method for recovering heat radiating from the outer surface of a rotary kiln includes an enclosure formed as a stationary housing that has an axially extending opening and closure flaps on circumferential ends of the housing extending towards the shell to form a chamber and an exhaust fan, arranged to draw a flow of air into the housing, which flow of air recovers heat from the kiln shell and is discharged from the chamber for heat recovery therefrom.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Inventors: Jeffrey J. Bittner, Hugh E. Crosmun
  • Publication number: 20110065058
    Abstract: A rotary kiln includes: a cylindrical shell that includes a supply-side end portion and a discharge-side end portion at both ends in an axial direction of the shell, and a heat treatment chamber which is defined inside the shell and in which a heat treatment is performed on a process material; a supply-side holder that holds the supply-side end portion; a discharge-side holder that holds the discharge-side end portion; a supply-side rotary shaft that allows rotation of the supply-side holder; and a discharge-side rotary shaft that allows rotation of the discharge-side holder. The shell is rotated about its own axis by rotating at least one of the supply-side rotary shaft and the discharge-side rotary shaft.
    Type: Application
    Filed: July 23, 2010
    Publication date: March 17, 2011
    Applicant: Takasago Industry Co., Ltd.
    Inventors: Hiroki KUMAGAI, Fumihiko Kato, Sadahiko Kawasaki
  • Publication number: 20110027741
    Abstract: A refractory member for use in insulating a support beam or other heat-absorptive element in a high temperature furnace as well as a method of producing such members is provided. The refractory member includes a vacuum-formed refractory shape comprised of a fiber material and at least one binder, a reticulated, interconnected mesh embedded within the refractory shape, and an anchor element for securing the refractory member to the heat-absorptive element.
    Type: Application
    Filed: March 30, 2009
    Publication date: February 3, 2011
    Applicant: BLOOM ENGINEERING COMPANY, INC.
    Inventors: Thomas E. Klein, David G. Schalles, Robert F. Green, David A. Toocheck
  • Publication number: 20110008741
    Abstract: In an aspect of at least one embodiment of the invention, there is provided a hot isostatic pressing arrangement for treatment of articles by hot isostatic pressing. The arrangement includes a pressure vessel including a furnace chamber including a heat insulated casing and a furnace for heating of a pressure medium during pressing, and a ‘heat exchanger unit’ or heat absorbing material located below the furnace chamber. In another aspect of at least one embodiment of the invention, there is provided a method for treatment of articles in a hot isostatic press. The press further includes a pressure vessel enclosing a furnace chamber and a ‘heat exchanger unit’. The method includes the steps of loading the articles into the furnace chamber, performing pressurized and heated treatment of the articles, cooling the articles and unloading of the articles. All the steps are performed while the ‘heat exchanger unit’ remains located inside the pressure vessel.
    Type: Application
    Filed: December 14, 2007
    Publication date: January 13, 2011
    Inventor: Mats Gardin
  • Patent number: 7731783
    Abstract: A continuous pressure letdown system connected to a hopper decreases a pressure of a 2-phase (gas and solid) dusty gas stream flowing through the system. The system includes a discharge line for receiving the dusty gas from the hopper, a valve, a cascade nozzle assembly positioned downstream of the discharge line, a purge ring, an inert gas supply connected to the purge ring, an inert gas throttle, and a filter. The valve connects the hopper to the discharge line and controls introduction of the dusty gas stream into the discharge line. The purge ring is connected between the discharge line and the cascade nozzle assembly. The inert gas throttle controls a flow rate of an inert gas into the cascade nozzle assembly. The filter is connected downstream of the cascade nozzle assembly.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: June 8, 2010
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Kenneth M. Sprouse, David R. Matthews, Terry Langowski
  • Publication number: 20080187877
    Abstract: A liner for use within a gasifier vessel includes a plurality of elongated channels and a plurality of ceramic sheaths. The elongated channels pass coolant through the gasifier. The ceramic sheaths surround the elongated channels.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Applicant: Pratt & Whitney Rocketdyne Inc.
    Inventors: Mark Andrew Fitzsimmons, Stephen Arthur Yows, Steven P. Fusselman
  • Patent number: 7361016
    Abstract: A temperature control assembly for use in etching processes includes a housing, a cooling conduit, fasteners, and a mounting block. The fasteners couple to the housing and operate to associate the cooling conduit, which is formed from a non-corrosive metallic material, with the housing. The mounting block is coupled to the cooling conduit. Also, a method for retrofitting an existing temperature control assembly includes removing an original cooling mechanism, selecting a retrofit cooling conduit formed from a non-corrosive metallic material, coupling fasteners to a housing of the temperature control assembly to associate the retrofit cooling conduit with the housing, and coupling a retrofit mounting block to the retrofit cooling conduit.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: April 22, 2008
    Assignee: Texas Instruments Incorporated
    Inventor: Christopher L. Kelley
  • Patent number: 7100656
    Abstract: According to one embodiment of the invention, a system for curing a composite material includes an oven having an inner wall defining an inner chamber, an outer wall defining an outer chamber between the inner wall and the outer wall, a hot air distribution manifold disposed within the inner chamber, a cold air distribution manifold disposed within the outer chamber, and an exhaust chimney having a cold air distribution conduit disposed therein coupled to the outer chamber. The system further includes a hot air supply system coupled to the hot air distribution manifold of the oven that is operable to supply hot air to the hot air distribution manifold, a cold air supply system coupled to the cold air distribution manifold and the cold air distribution conduit that is operable to supply cold air to them, and a plurality of hot air exhaust passages formed in the inner wall of the oven. The hot air exhaust passages are adapted to transport hot air within the inner chamber to the outer chamber.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: September 5, 2006
    Assignee: Northrop Grumman Corporation
    Inventors: Michael S. Lamb, Forrest D. Wyatt
  • Patent number: 7059849
    Abstract: A heat treatment system and method for cooling a loading chamber that includes a heat treatment furnace for heat-treating an object to be treated. The heat treatment furnace includes a throat for carrying the object in and out, and a cooling mechanism for cooling the vicinity of the throat. The cooling mechanism has a ventilating unit with a ventilating port for sending a cooling fluid toward the vicinity of the throat and a heat exchanger arranged so as to face the ventilating port in the vicinity of the throat. The cooling mechanism also has an intake fan for sucking the cooling fluid in the vicinity of the throat over the heat exchanger. When the object to be treated is carried in, the structure of various mechanisms in the vicinity of the throat is simplified, and space is saved.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: June 13, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Kazunari Sakata, Koyu Hasegawa, Keiichi Katabuchi, Shingo Watanabe, Shinya Mochizuki, Motoki Akimoto, Hiroshi Motono
  • Patent number: 6920836
    Abstract: A coolant liner for a carbonaceous fuel (coal or petcoke) gasification vessel including a ceramic composite panel and a method of cooling a vessel. The panel includes at least two layers of woven yarns of fibrous material and walls extending between the layers. Accordingly, the layers and the walls define coolant channels that extend in a warp direction. Moreover, one of the layers may be less than about 0.08 inches thick. Materials used to create the composite panel may include alumina, chromia, silicon carbide, and carbon. Additionally, the liners may be shaped in an arc or have coolant channels which vary in diameter in the warp direction. Additionally, the liner may abut a structural closeout of the vessel. The coolant liner provides a significantly more durable component than previously employed liners and is especially well suited to demanding service environments.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: July 26, 2005
    Assignee: The Boeing Company
    Inventor: Kenneth M. Sprouse
  • Publication number: 20040234920
    Abstract: The present invention provides a heat treating process chamber having a housing with a flow passage in communication with a vestibule assembly. The vestibule assembly includes an outer ring with a first groove and an inner ring with a second groove. The first groove is formed in an axially inwardly facing surface of the outer ring. The first groove has a portion open in a radially outer direction and an axially inner direction. The second groove opens in an axially inner direction and is formed in an axially outwardly facing surface of the inner ring. The first and second grooves form a passageway when they are in an axially superimposed relationship. The first groove forms a radially outwardly open end and the second groove forms an axially inwardly facing end of the passageway. The passageway communicates with the flow passage thereby allowing passage of a temperature adjusting medium.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 25, 2004
    Inventors: Kevin B. Peck, Mike D. Soliday, Jim Sanches
  • Patent number: 6769425
    Abstract: A fuel-fired, forced draft air heating furnace has a draft inducer fan disposed in a vestibule chamber having an exterior wall with an air intake opening therein. During operation of the draft inducer fan its motor is cooled by combustion air drawn inwardly through the air intake opening. To enhance the combustion air cooling of the draft inducer fan motor, a deflection plate is supported within the vestibule chamber in an inwardly spaced apart, facing relationship with the air intake opening. A portion of the combustion air flowing inwardly through the air intake opening impinges on and is redirected by the plate toward the motor via a substantially unenclosed flow path within the vestibule chamber.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 3, 2004
    Assignee: Rheem Manufacturing Company
    Inventor: Seung-Ho Kim
  • Patent number: 6746238
    Abstract: The present invention relates to a cooling system of a furnace, and more particularly, to a multi-cycle cooling system, located by the furnace door. The multi-cycle cooling system comprises the first gas cooling cycle, the second gas cooling cycle, the first liquid cooling cycle, the second liquid cooling cycle, the heat sinks and the heat insulation slot. When inside the process tube proceeds the high temperature process like depositing process, the first gas cooling cycle and the second gas cooling cycle are opened and the second liquid cooling cycle is closed at the same time. The second gas cooling cycle and the second liquid cooling cycle are assembled in the first flange, which is located on the process tube and contacts with the door. The first liquid cooling cycle in the second flange, which is located on the process tube and contacts with the first range, is always opened.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: June 8, 2004
    Assignee: United Microelectronics Corp.
    Inventors: Eric Chu, Kevin Chiang, Ling-Hsin Tseng, Ken Yew
  • Patent number: 6575738
    Abstract: A pair of composite refractory tiles for insulating fluid-cooled structural members of a metallurgical furnace of the type for re-heating metal billets and slabs. The refractory tiles are a composite of a cast refractory shell which extends radially from an outer surface of the tile inward, at selected portions, to an inner surface for contacting the furnace member. In portions of the refractory tile, where contact with the furnace member is not made, a ceramic fiber insulating blanket fills a hollow between the cast refractory shell and the furnace member. Incorporating the ceramic fiber insulating blanket into each tile decreases furnace heat loss as compared to solid cast refractory tiles of comparable thickness. Attachment assemblies, which contact the fluid-cooled structural members, have a plurality of spaced anchoring wires which extend into the cast refractory shell and maintain proper alignment of each tile with the furnace structural member.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: June 10, 2003
    Inventors: Carole S. Nguyen, Ngoc N. Nguyen
  • Patent number: 6450803
    Abstract: A heat treatment table is divided into two or more regions, a heater is disposed for each region. On a predetermined portion of the heat treatment table, a plurality of sensors are disposed separately each other. A relation between temperatures of the respective portions on the heat treatment table and temperatures detected by the sensors is grasped in advance, thereby enables to surmise a temperature of the respective portion of the heat treatment table from the temperature detected by the sensors. In the case of an wafer being actually treated by placing on the heat treatment table, the temperatures detected by the sensors are observed, from these detected temperatures, the temperatures of the respective portions on the heat treatment table, that is, temperatures affecting the wafer, are surmised.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: September 17, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Eiichi Shirakawa, Nobuyuki Sata
  • Patent number: 6444163
    Abstract: A shielding apparatus for intercepting heat from a heating source disposed in a vertical continuous annealing furnace includes a double-walled tube having an outside atmosphere suction port projected horizontally or downward to be exposed to an outside atmosphere, and an exhaust port projected upward to be exposed to the outside atmosphere.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: September 3, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Naoto Ueno, Sachihiro Iida, Takaaki Kobashi, Motoki Imamura
  • Publication number: 20020106602
    Abstract: The present invention relates to a cooling system of a furnace, more particularly, to a multi-cycle cooling system, located by the furnace door. The multi-cycle cooling system comprises the first gas cooling cycle, the second gas cooling cycle, the first liquid cooling cycle, the second liquid cooling cycle, the heat sinks and the heat insulation slot. When inside the process tube proceeds the high temperature process like depositing process, the first gas cooling cycle and the second gas cooling cycle are opened and the second liquid cooling cycle is closed at the same time. The second gas cooling cycle and the second liquid cooling cycle are assembled in the first flange, which is located on the process tube and contacts with the door. The first liquid cooling cycle in the second flange, which is located on the process tube and contacts with the first range, is always opened.
    Type: Application
    Filed: February 5, 2001
    Publication date: August 8, 2002
    Inventors: Eric Chu, Kevin Chiang, Ling-Hsin Tseng, Ken Yew
  • Patent number: 6412681
    Abstract: A soldering machine using lead-free solders is provided which can uniformly heat a printed circuit board and electronic parts to be mounted thereon, and which can solder the electronic parts without thermally damaging them. A porous member having a number of holes formed therein is disposed between a blower fan and a heater for making uniform the pressure of a fluid. A radiation plate is disposed between the heater and a heating target for blowing the fluid having been heated by the heater to the heating target in the form of a turbulent flow. The heated fluid is blown to the heating target for heating the same, whereby solder is melted.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: July 2, 2002
    Assignees: Hitachi, Ltd., Tamura Fa System Co., Ltd., Hitachi Car Engineering Co., Ltd., Tamura Corporation
    Inventors: Hideki Mukuno, Kazumi Tashiro, Hideaki Arita, Kiyoshi Kanai, Teruo Okano, Fumihiro Yamashita, Shoichirou Matsuhisa, Hidekazu Imai
  • Patent number: 6367288
    Abstract: In furnaces for producing high purity fused silica glass boules, glass particles have a tendency to build-up adjacent the burner hole rim. It was discovered that unburned furnace gases containing silica particles where re-circulated in the furnace close to the burner hole rim and reacted with the oxygen of infiltrated air adjacent the burner hole, and thus deposited such particles in the form of a glassy build-up about the rim of the burner hole. In order to eliminate the source of oxygen adjacent the burner hole rim, a curtain of an inert gas is caused to flow through the burner hole between the sidewalls of the burner hole and the flame of the burner. Accordingly, the curtain of inert gas inhibits the combustion of the unburned hydrogen and carbon monoxide furnace gases adjacent the exit rim of the burner hole and thereby minimizes glass build-up about the burner hole rim.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 9, 2002
    Assignee: Corning Incorporated
    Inventors: Raymond E. Lindner, Robert E. McLay, Mahendra K. Misra, Michael H. Wasilewski
  • Publication number: 20020031740
    Abstract: The invention relates to method and apparatus for cooling a furnace configured for processing refractory composites. More specifically, the invention is directed to method and apparatus for cooling a furnace more rapidly than prior art methods. According to the invention, a cooling gas is flowed in a closed circuit through the furnace, over the refractory composites disposed within the furnace, and over a cooling element disposed within the furnace. The cooling gas may be flowed by natural convection or by force.
    Type: Application
    Filed: February 9, 2001
    Publication date: March 14, 2002
    Applicant: The B.F. Goodrich Company
    Inventors: Dennis T. Garn, Jerry S. Lee, James W. Rudolph
  • Patent number: 6352431
    Abstract: A furnace includes a main blower housed in an inlet plenum that circulates temperature controlled air through the furnace and an inducer fan that circulates combustion gases through the furnace. The inducer fan is driven by an inducer fan motor with a housing that defines a hollow interior and surrounds the motor. The inducer fan motor housing is in communication with the inlet plenum and operation of the main blower draws cooling air through the interior of the motor housing to cool the motor.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: March 5, 2002
    Assignee: Jakel Incorporated
    Inventor: William Stuart Gatley, Jr.
  • Patent number: 6296478
    Abstract: A furnace includes a motor in a motor housing that drives a fan that draws heated air through a heat exchanger of the furnace and also draws a flow of air through the motor housing to cool the motor as well as the motor housing.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: October 2, 2001
    Assignee: Jakel Incorporated
    Inventor: William Stuart Gatley, Jr.
  • Patent number: 6179610
    Abstract: In a metallurgical furnace of the type for re-heating metal billets and slabs, a pair of composite refractory tiles for insulating fluid-cooled structural members of the furnace. The tiles are a composite of a cast refractory shell which extends radially inward at selected portions to contact the furnace member. Attachment assemblies are embedded in the cast refractory shell and maintain proper alignment of each tile with the furnace structural member. In portions of the tile where contact with the furnace member is not made, a ceramic fiber insulating blanket fills a hollow between the refractory shell and the furnace member. Incorporating the ceramic fiber insulating blanket into each tile decreases furnace heat loss as compared to solid cast refractory tiles of comparable thickness.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: January 30, 2001
    Inventor: Paul V. Suey
  • Patent number: 6028882
    Abstract: A cooling and heat recovery system for chemical processing vessels. An inner vessel is located within an outer vessel, defining a gap between the two vessels. A heat removal agent is pumped in and out of the gap thereby cooling the wall of the inner vessel which is exposed to exceedingly high temperatures within its interior. Baffling is provided within the gap to ensure the uniform and continuous flow of heat removal agent within the gap. The design of the system increases the rate and efficiency at which heat is transferred from the inner vessel wall to the heat removal agent. In one embodiment, at least one helical bar attached to the inner vessel wall enhances the heat transfer rate and efficiency. Each helical bar generates turbulent flow of the heat removal agent, which in turn enhances the heat transfer between the inner vessel wall and the heat removal agent.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 22, 2000
    Inventor: Strom W. Smith
  • Patent number: 5961322
    Abstract: An annealing furnace inner cover cooperates with a furnace base to define a treatment chamber within which a charge of metal such as steel is housed for annealing, wherein the inner cover carries at least one interior cooling conduit through which cooling water from an exterior source is circulated to expedite the cooling of gas that is circulated within the treatment chamber during cooling portions of an annealing cycle. The water cooled inner cover is especially well suited for expediting the cooling of stacked coils of steel sheet from an annealing temperature, and preferably utilizes a helix of cooling coils that surround mid-height portions of the stack, wherein the cooling coils are protectively housed within an inwardly facing recess defined by an enlarged diameter mid-height portion of the inner cover both to prevent cooling coil damage due to impact during cover movement, and to ensure that gas circulation within the inner cover is not adversely restricted by the presence of the cooling coils.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: October 5, 1999
    Inventor: Gary L. Coble
  • Patent number: 5709544
    Abstract: A vacuum heat treating furnace includes a pressure vessel having a wall that defines a chamber wherein metal parts are vacuum heat treated. A fan is disposed inside the chamber for circulating a cooling gas therein. An electric motor is mounted externally to the pressure vessel for driving the fan. A drive shaft interconnects the fan and the electric motor through an opening in the wall of the pressure vessel. The vacuum furnace incorporates a dual seal for providing a vacuum-tight seal and a gas-tight seal where the drive shafts passes through the pressure vessel wall. The dual seal includes an inflatable seal surrounding the drive shaft for providing a vacuum-tight seal around said drive shaft when the furnace chamber is evacuated to a subatmospheric pressure.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: January 20, 1998
    Assignee: Abar Ipsen Industries, Inc.
    Inventor: Brian J. Wurtz
  • Patent number: 5601427
    Abstract: A furnace body is partly or thoroughly made of a metal material. An inner peripheral face of the metal material portion is covered by a lining. Spray means for cooling the lining of a relatively thin portion via the metal material portion of the furnace body is disposed outside the furnace body. When wastes are to be melted, wastes are melted under a state where the spray means sprays coolant on the outer face of the furnace body and cools the lining, thereby preventing erosion of the lining from occurring.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: February 11, 1997
    Assignee: Daidotokushuko Kabushikikaisha
    Inventors: Tatsuo Yuasa, Tetsuhisa Sugiura
  • Patent number: 5549471
    Abstract: The invention relates to a cooler grate for a reciprocating grate cooler, with a plurality of grate plate supports extending transversely with respect to the cooler grate and constructed as hollow bodies, on which in each case grate plates are supported so that they are co-ordinated in transverse rows and sealed by means of screw connections, wherein the grate plates have cooling gas openings and cooling gas connecting channels are constructed between the grate plate support and the cooling gas openings.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: August 27, 1996
    Assignee: Krupp Polysius AG
    Inventors: Gert Tegtmeier, Manfred Strohbusch
  • Patent number: 5502788
    Abstract: A radiant-heat drier for printing presses or the like has a plurality of spaced radiant-heat drier strips (22) which extend transversely with respect to the conveyance direction and which each have in turn a radiator bar (44) and a cooling air distributor element (24) extending parallel thereto at a distance. On a wall (30) facing the radiator bar (44), the radiator bar has a plurality of air delivery nozzles (32, 34) which terminate in the immediate vicinity of the rear of the radiator element (44).
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: March 26, 1996
    Inventor: Hans G. Platsch
  • Patent number: 5350296
    Abstract: In a method for cooling a rotary kiln having a cylindrical outer jacket, cooling air is blown at high speed radially towards the jacket from an annular supply-air chamber surrounding the jacket and having a perforated inner wall which is located at a slight distance from the jacket and through which the cooling air is blown towards the jacket. The cooling air is sucked out from the space between the jacket and the inner wall to an annular exhaust-air chamber which is separate from and surrounds the supply-air chamber and communicates with said space. The cooling-air flow through the chambers is adjusted by fan devices connected thereto. A device for implementing this method has an annular supply-air chamber surrounding the jacket and having a perforated inner wall which is located at a slight distance from the jacket and designed for radially blowing cooling air towards the jacket.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: September 27, 1994
    Assignee: Abb Flakt AB
    Inventor: Goran Wikstrom
  • Patent number: 5230617
    Abstract: A system for cooling a single or plural zones of the exterior of a furnace or similar hot device, e.g., kiln, calciner, etc. Each zone is cooled by a respective cooling assembly. The operation of the assemblies is effected by a common control system. Each cooling assembly comprises a shroud, an induction cooler, e.g., an exhaust fan, and at least one atomizing spray nozzle. The shroud is in the form of a jacket disposed over the associated exterior zone of the furnace and is spaced therefrom to form a cooling chamber therebetween. The exhaust fan is coupled to the shroud for inducing the flow of cooling air through the cooling chamber so that it absorbs heat from furnace's exterior. The atomizing spray nozzle is also coupled to the shroud and to a water and an air supply for introducing atomized droplets of water into the chamber, whereupon the droplets vaporize to absorb heat from the furnace's exterior. The exhaust fan vents the air and steam from the shroud means.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: July 27, 1993
    Inventors: Ernst G. Klein, Kerry A. Seitz
  • Patent number: 5141147
    Abstract: A reflow soldering method and the apparatus thereof is described for soldering a base board having electronic elements located thereon by an inert gas circulated through heater means in a plurality of chambers while the base board is transported through all the chambers, the inert gas being circulated by ventilating means driven by drive means, the method and the apparatus thereof comprising a shield case for enclosing at least the chambers, the ventilating means and the drive means to shut off the same from an outer air and refrigerating means for cooling down the inert gas in the shield case.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: August 25, 1992
    Assignee: Eightic Tectron Co., Ltd.
    Inventor: Yatsuharu Yokota
  • Patent number: 5136610
    Abstract: The system comprises at least one coolant-carrying tubular support carrying at least one rider. The latter consists of a heat-resistant cast housing provided with at least one cutout into which a ceramic carrier is inserted. The carrier is of sufficient compressive strength even at a temperature in excess of 1,200.degree. C. The housing remains at a temperature below 1,200.degree. C. and therefore provides a very good support for the carrier which it holds and transfers the loads that occur into the tubular support. The housing is detachably connected with the tubular support by means of a bolt.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: August 4, 1992
    Assignee: LOI Essen Industrieofenanlagen GmbH
    Inventor: Helmut Heuss
  • Patent number: 5011402
    Abstract: A suspended back wall for a high temperature furnace including a plurality of spaced-apart, vertically extending columns having upper portions supported between spaced girder members to bear loading while permitting lateral thermal expansive and contractive movement of the upper portions of the columns. Lower end portions of the columns are attached to a main support beam which horizontally traverses the width of the suspended wall. A plurality of interlocking refractory tiles are secured on the vertical columns by cast metal hangers. A plurality of insulation slabs or batts are inserted in specially formed pockets between adjacent refractory tiles and columns at a rear face thereof. An air chamber is formed along the rear of the vertical columns and an air duct is provided along the bottom thereof to supply a regulated forced air flow to the air chamber.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: April 30, 1991
    Assignee: Frazier Simplex, Inc.
    Inventor: John A. Hammond
  • Patent number: 4981435
    Abstract: A device of quartz glass for receiving or holding work pieces to be heated in a furnace, a region of the device projecting into the hot furnace zone having an arcuate part with a beginning of curvature and an end of curvature, which is enclosed by a vessel filled with an immersion liquid, heat radiation passed in the material of the device in a region located before the arcuate part due to total reflection being coupled out of the arcuate part and being coupled into the immersion liquid and a region of the device adjoining the arcuate part together with further device parts present at it being colder than the region located before the arcuate part.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: January 1, 1991
    Assignee: U.S. Philips Corp.
    Inventors: Rolf Clasen, Klaus Schlageter
  • Patent number: 4941824
    Abstract: Coking emissions in the regions of the roof of the coke oven and adjoining lateral wall regions are removed by removing jets of fresh air from one longitudinal side to the other longitudinal side where the air, entraining the contaminant, is collected. The collected gases are supplied to the dry and wet cleaning.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: July 17, 1990
    Assignee: Heinz Holter
    Inventors: Heinz Holter, Heinrich Igelbuscher, Heinrich Gresch
  • Patent number: 4891009
    Abstract: In an apparatus for mounting workpieces or substrates for transport between a receiving or issuing station and a coating station in the interior of a vacuum coating chamber and for the control of the temperature of the workpieces during cathode sputtering, the workpiece carrier is in the form of a hollow body partially filled with a heat transfer medium. On the side of the workpiece carrier facing the coating source there is provided a workpiece socket in the form of an oval channel in which workpieces such as bearing shells can be placed. Parallel to the longitudinal edges of the groove-like workpiece socket, edge strips of gripping jaws are disposed, which hold the workpieces in the workpiece socket. The workpiece carrier is furthermore provided with a heat transfer head against which cooling plates or bodies can be pressed, which are connected by flexible pressure hoses to a cooling circuit.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: January 2, 1990
    Assignee: Leybold Aktiengesellschaft
    Inventors: Werner Pivit, Ralf Nachtsheim
  • Patent number: 4776790
    Abstract: Straight and arcuately curved superheater tube shields of refractory material comprising a pair of elongated half shields of identical interchangeable interfitting and interlocking size and shape, each half shield having a semicircular sidewall of corresponding straight or arcuate shape of predetermined radius of curvature extending between opposite ends and to inner diametrically opposite inner sides lying in a central plane and the plane of curvature. A number of mating camming portions with inclined camming surfaces are precisely spaced adjacent each of the inner sides so that one of the half shields may be turned end for end relative to and assembled to the other about a correspondingly shaped superheater tube by a relatively short axial movement and engagement of the inclined camming surfaces whereby the half shields are pulled together to close the joints therebetween and interlocked about the superheater tube. A refractory cement may be applied to attach the half shields to the tubes.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: October 11, 1988
    Assignee: Norton Company
    Inventor: Roger W. Woodruff
  • Patent number: 4559011
    Abstract: The cooling arrangement comprises spaced apart cooling tubes arranged in a frame and interconnected with metallic tie plates. For decreasing thermal stresses without loss of strength throughout the structure, each tie plate is tangentially welded with its edge portions to the adjacent cooling tubes on both the shell and the furnace sides thereof. Each tie plate may be tangentially welded to one adjacent cooling tube and to the other it may be welded on the portion of its surface defined by an arc between tangents to this arc from the location where the tie plate is tangentially welded. The cooling tubes and the tie plates may be provided with fins and, the tie plates and the fins and as well as the walls of the frame have expansion clearances or slots. The frame is filled with a refractory material serving to protect the whole cooling arrangement.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: December 17, 1985
    Assignee: Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Pozovaniju Vtorichnykh Energoresursov Predpriyaty Chernoi Metallurgii "Vnipichermetenergoochistka"
    Inventors: Lev D. Gritsuk, Anatoly S. Gorbik, Leonid D. Golod, Dorina B. Kutsykovich, Kazimir D. Bashinsky, Sergei V. Samofal, Igor M. Peftiev, Viktor P. Bogoditsa, Alexandr N. Kulagin, Gennady E. Goryainov, Jury G. Bannikov, Semen M. Liderman, Georgy V. Nikolaev, Vitaly N. Mischenko, Valentin V. Gromenko, Alexei M. Kamardin, Nikolai S. Kobets
  • Patent number: 4443188
    Abstract: A liquid cooling system for thermally highly stressed parts of an industrial furnace consists of cooling channels, arranged essentially vertically and through which liquid flows and by-pass openings arranged at the upper end of the cooling channels for the direct passage of cooling liquid, by-passing the cooling channels. According to the dimensions of the by-pass openings, steam or gas bubbles are removed from the cooling system in a simple fashion and, at the same time, the cooling liquid which passes through the cooling channels and is heated is cooled by the cooling liquid flowing directly through the by-pass openings, before it again enters the next cooling channels. The by-pass opening(s) are formed by connecting tubes, or they are arranged in a cooling liquid distribution chamber, into which the cooling channels pass.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: April 17, 1984
    Assignee: BBC Brown, Boveri & Company, Ltd.
    Inventor: Karl Buhler