Having Expansion Relieving Or Absorbing Means Patents (Class 432/251)
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Patent number: 11351803Abstract: Disclosed are a printing screen, a touch panel, a production method of the touch panel, and a display device. The printing screen includes a frame and a screen body fixed on the frame, wherein a pattern region of the screen body is provided with a plurality of via holes formed through the screen body, and the screen body is provided with a first surface and a second surface; and areas of sections, located on the first surface, of the via holes are larger than areas of sections, located on the second surface, of the via holes in a direction parallel to the screen body.Type: GrantFiled: May 6, 2019Date of Patent: June 7, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaoyue He, Qingpu Wang, Taofeng Xie, Li Yin
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Patent number: 8945465Abstract: Exemplary embodiments of the invention relate to a compressive rod assembly for applying force to a refractory vessel positioned within an outer metal casing. The assembly includes a rigid elongated rod having first and second opposed ends, a threaded bolt adjacent to the first opposed end of the elongated rod, and a compressive structure positioned operationally between the elongated rod and the bolt. Compressive force applied by the bolt to the elongated rod passes through the compressive structure which allows limited longitudinal movements of the elongated rod to be accommodated by the compressive structure without requiring corresponding longitudinal movements of the bolt. Exemplary embodiments also relate to rod structure forming a component of the assembly, and to a metal containment structure having a vessel supported and compressed by at least one such assembly.Type: GrantFiled: December 8, 2010Date of Patent: February 3, 2015Assignee: Novelis Inc.Inventors: Eric W. Reeves, James E. Boorman, Jason D. Hymas, Robert Bruce Wagstaff, Randy Womack
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Patent number: 8900384Abstract: In a method for heat treating a metal tube or pipe for a nuclear power plant, the tube or pipe being accommodated in a batch-type vacuum heat treatment furnace, when the tube or pipe is laid down on and is subjected to heat treatment on a plurality of metal cross beams arranged along a longitudinal direction of the tube or pipe, it is possible to suppress scratches to be formed on the outer surface of the tube or pipe and attributable to heat treatment, and to reduce the discoloration on the outer surface of the tube or pipe by holding the tube or pipe and the metal cross beams in indirect contact with each other by virtue of a heat resistant fabric having a thickness of 0.1 to 1.2 mm interposed in between.Type: GrantFiled: July 23, 2012Date of Patent: December 2, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Shoji Kinomura, Shinichi Takenaka
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Patent number: 8858740Abstract: In a method for heat treating a metal tube or pipe for a nuclear power plant, the tube or pipe being accommodated in a batch-type vacuum heat treatment furnace, when the tube or pipe is laid down on and is subjected to heat treatment on a plurality of metal cross beams arranged along a longitudinal direction of the tube or pipe, it is possible to suppress scratches to be formed on the outer surface of the tube or pipe and attributable to heat treatment, and to reduce the discoloration on the outer surface of the tube or pipe by holding the tube or pipe and the metal cross beams in indirect contact with each other by virtue of a heat resistant fabric having a thickness of 0.1 to 1.2 mm interposed in between.Type: GrantFiled: July 23, 2012Date of Patent: October 14, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Shoji Kinomura, Shinichi Takenaka
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Publication number: 20140072925Abstract: A heat treatment apparatus includes: a reaction tube processing a plurality of substrates; a support member supporting the reaction tube; a flange protruding outwardly from a lower end of the reaction tube: a concave portion formed in an outer periphery of the flange; and a rotatable roller installed in a top surface of the support member. The rotatable roller engages the concave portion and positions the reaction tube in a circumferential direction.Type: ApplicationFiled: September 10, 2013Publication date: March 13, 2014Applicant: TOKYO ELECTRON LIMITEDInventor: Hirofumi KANEKO
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Patent number: 8597384Abstract: A system, in certain embodiments, includes a gasification cooling system having an annular seal with a bellows. For example, the gasification cooling system may include a housing with an inlet, an outlet, and an interior between the inlet and the outlet, wherein the interior has a throat adjacent the inlet, and the throat expands in a flow direction from the inlet toward the outlet. The annular seal may be disposed in the throat of the housing, wherein the annular seal includes the bellows.Type: GrantFiled: September 25, 2009Date of Patent: December 3, 2013Assignee: General Electric CompanyInventors: Yasir Hafeez Abbasi, Cliff Yi Guo, Wade Albert Taber, Xinyuan Zhang
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Patent number: 8513572Abstract: An oven apparatus 24 having a modular construction for curing paint on the surface of a vehicle body 26 using radiant and convection heat. The oven apparatus 24 includes a plurality of oven modules, each extending along an axis A along a length B. Each oven module 30 includes an interior shell 52, an outer shell 54 and a wall cavity 56 therebetween. A plurality of Z-shaped rails 84 are disposed in the cavity 56, wherein a rail leg 86 of each Z-shaped rail fixedly engages the outer shell 54. Further, a plurality of support clips 90 are disposed in the wall cavity 56 and fixedly engage the interior shell 52. The support clips 90 each have a clip cavity 96 for receiving a rail leg 88 of a Z-shaped rail 84 for allowing axial movement between the interior and outer shells 52, 54 while restricting transverse movement between the interior and outer shells 52, 54.Type: GrantFiled: April 15, 2011Date of Patent: August 20, 2013Assignee: GK Licensing, LLCInventors: James C. Schumacher, Curt D. Hite, Tracy E. Roberts
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Patent number: 8085829Abstract: A furnace insulation including fiber modules in the form of at least two cylinder segments (2, 3; 7, 8) that are placed against one another so as to form a cylinder whose internal volume constitutes the furnace space and that are adapted to allow an electrical resistance element (5) to lie against and be fastened in the inner surface (4) of the cylinder. The furnace insulation is characterized in that the inner part of the cylinder includes one or more radially extending or generally radially extending openings (12; 14).Type: GrantFiled: August 31, 2005Date of Patent: December 27, 2011Assignee: Sandvik Intellectual Property ABInventors: Lars Goran Johansson, Lars-Henrik Eklund
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Patent number: 8033823Abstract: The present invention is a heat processing apparatus comprising: a processing vessel that receives a plurality of objects to be processed in a tier-like manner to subject the objects to be processed to a predetermined heating process; a tubular heater disposed to surround the processing vessel, the tubular heater being capable of heating the objects to be processed; an exhaust heat system for discharging an atmosphere in a space between the heater and the processing vessel; and a cooling unit that blows out a cooling fluid into the space to cool the processing vessel. The heater has a tubular heat insulating member, and a heating resistor arranged on an inner circumference of the heat insulating member. The cooling unit has a plurality of blowing nozzles embedded in the heat insulating member. Each of the blowing nozzles is formed in such a manner that an inlet orifice of the blowing nozzle and an outlet orifice thereof are not linearly aligned to each other.Type: GrantFiled: June 12, 2006Date of Patent: October 11, 2011Assignee: Tokyo Electron LimitedInventors: Ken Nakao, Kazuhiko Kato
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Publication number: 20110200958Abstract: A hot blast stove dome comprises a first dome portion adapted for support on a combustion chamber wall of a hot blast stove, and a second dome portion adapted for support on a checker chamber wall of a hot blast stove, wherein a vertical expansion joint is provided between the first dome portion and the second dome portion and is adapted to allow the first dome portion and the second dome portion to independently accommodate vertical expansion of their respective supporting walls. The dome is suitably provided in a hot blast stove which comprises a combustion chamber, a checker chamber, a cylindrical housing comprising a combustion chamber wall and a checker chamber wall.Type: ApplicationFiled: February 14, 2011Publication date: August 18, 2011Inventors: Floris van Laar, Jacobus van Laar
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Patent number: 7955074Abstract: A thermal treatment apparatus and method for processing a wafer are provided. The thermal treatment apparatus includes a process chamber for thermally treating the wafer, a heating unit for heating the wafer in the process chamber, and a gas supply unit for supplying a gas and controlling a gas pressure differently by sections of the wafer. The heating unit is provided in at least one of the upper side and the lower side of the process chamber. The heating unit includes a plurality of heater blocks capable of controlling a temperature for sections of the wafer.Type: GrantFiled: December 27, 2007Date of Patent: June 7, 2011Assignee: Hynix Semiconductor Inc.Inventors: Seung Woo Jin, Kyoung Bong Rouh
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Patent number: 7850449Abstract: In an embodiment, heat treatment equipment comprises a process tube, an exhaust duct connected to the process tube, and, during operation, exhausting gases present within the process tube. The heat treatment equipment also comprises a hollow pressure control member interposed between the process tube and the exhaust duct, the pressure control member being operatively connected to the process tube and the exhaust duct respectively, and including one or a number of openings. Negative pressure is avoided in the process tube during heat treatment processes so that unwanted gas and impurities cannot enter the process tube from outside.Type: GrantFiled: July 10, 2007Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyun Yang, Yo-Han Ahn, Kun-Hyung Lee, Gui-Young Cho, Hong-Hee Jeong, Mi-Ae Kim
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Patent number: 7762809Abstract: Disclosed is a heat treatment apparatus which includes a processing vessel having a furnace throat at its bottom and adapted to accommodate process objects therein to perform a heat treatment to the process objects under reduced pressure, the processing vessel having a vessel main body made of quartz, a metallic lid adapted to support thereon a holder for holding a plurality of process objects so as to load and unload the holder into and from the processing vessel and to close and open the furnace throat, and an annular sealing member disposed on the lid to seal a gap between the lid and the furnace throat. A contact-preventing member is disposed between the lid and the furnace throat to prevent contact of the lid with the furnace throat due to squashing of the sealing member that would otherwise occur when an internal pressure of the processing vessel is reduced.Type: GrantFiled: October 12, 2007Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Kiichi Takahashi, Yuichiro Sase, Izumi Sato, Kiyohiko Takahashi
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Patent number: 7575431Abstract: A vertical heat processing apparatus for performing a heat process on a plurality of target substrates all together includes a vertical process container configured to accommodate the target substrates and having a transfer port at a bottom; a holder configured to support the target substrates at intervals in a vertical direction inside the process container; and a heater disposed around the process container, and configured to supply heat rays through a sidewall of the process container, so as to heat an interior of the process container. A thermal buffer member is disposed between the heater and a lower end side of the process container to surround the lower end side, and is configured to decrease transmissibility of the lower end side for heat rays between the heater and target substrates inside the process container.Type: GrantFiled: July 3, 2007Date of Patent: August 18, 2009Assignee: Tokyo Electron LimitedInventors: Atsushi Endo, Yoshiyuki Fujita, Shinji Miyazaki
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Patent number: 7416406Abstract: Aspects of this invention include a furnace framework system which includes a framework with a first end piece, a second end piece and inter-connecting structural members operatively connecting the first end piece with the second end piece, with a combustion chamber housing and an exhaust manifold operatively attached to the framework by at least one expansion joint to allow limited relative movement between the combustion chamber housing and/or the exhaust manifold. The expansion joint may include a flange on at least one of the combustion chamber housing and the exhaust manifold retained between the first end piece and a structural retainer component.Type: GrantFiled: September 27, 2006Date of Patent: August 26, 2008Inventor: Frank Schubach
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Patent number: 7134397Abstract: A binding system for applying a vertical compressive force to the refractory walls of a rectangular or circular furnace comprises a compressive member engaging a laterally extending surface of the furnace wall and a support member to which the compressive member is connected. The compressive member preferably comprises a coil spring which acts directly on the laterally extending surface or indirectly through a force-applying member. The force applied by the compressive member is sufficient to control vertical expansion and substantially prevent vertical expansion of the furnace walls due to infiltration of material into the joints between the refractory bricks during operation of the furnace.Type: GrantFiled: May 26, 2004Date of Patent: November 14, 2006Assignee: Hatch, Ltd.Inventors: Kenneth T. Hutchinson, Kenneth M. Donaldson, Keith E. Joiner, Clarence A. Nichols, Jimmy Sarvinis
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Patent number: 7086856Abstract: A carbon baking furnace comprising a refractory lined kiln defining a baking path, further comprising a means for substantially continuously receiving green carbon articles, means for packing said green carbon articles in a sacrificial medium, a means for substantially continuously displacement of the packed carbon articles through said baking path and a means for substantially continuously removing baked carbon articles from the kiln.Type: GrantFiled: July 30, 1998Date of Patent: August 8, 2006Assignee: Lazar Enterprises PTY LTDInventor: Rick Kiriakos Lazarou
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Patent number: 7086857Abstract: In a residential furnace having a layered insulation material on the inner walls of the heat exchanger compartment, the inner aluminum foil layer has a plurality of holes formed therein in order to allow for the outer layer to absorb the sound within the heat exchanger compartment and thereby reduce the noise emanating from the furnace. Both the density and size of the holes are optimized to maximize the sound absorption performance over the particular frequency ranges that are characteristic of the furnace.Type: GrantFiled: July 20, 2004Date of Patent: August 8, 2006Assignee: Carrier CorporationInventors: Heng-Yi Lai, Sivakumar Gopalnarayanan, Paul M. Haydock
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Patent number: 7037106Abstract: A uniform flow control system for processing equipment with a plurality of work pieces located within the processing equipment, including a gas circulating device that circulates gas, a work chamber that can accommodate the plurality of work pieces and an expansion chamber that is located outside the work chamber and that guides gas to the work chamber. The expansion chamber includes a first chamber that extends along a first surface of the work chamber, a second chamber that extends along a second surface of the work chamber to a side of the first chamber, and a third chamber that extends from an end of the first chamber that is opposite the gas circulating device and below an end of the second chamber that is opposite the gas circulating device.Type: GrantFiled: August 31, 2004Date of Patent: May 2, 2006Assignee: Seco/Warwick CorporationInventor: Paul Shefsiek
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Patent number: 6840766Abstract: A refractory vessel that can be used as a gasifier for black liquor includes a generally cylindrical metal shell having a dome. A refractory shell has a cylindrical portion spaced inwardly from the metal shell and a dome portion that is spaced inwardly from the metal dome. The refractory shell is sized to provide an expansion gap between the liner and the metal shell. A selectively crushable liner is positioned in the gap. The liner has a predetermined yield stress that will provide controlled resistance to expansion of the refractory shell.Type: GrantFiled: January 14, 2004Date of Patent: January 11, 2005Assignee: Weyerhaeuser CompanyInventors: Zia Abdullah, John Peter Gorog
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Patent number: 6769908Abstract: A wafer heat-treatment system for processing a wafer by a high-temperature heat-treatment process and cooling the heat-treated wafer, comprises walls surrounding a closed space placing the wafer and having a hollow sealing a gas therein, and a pressure-regulating unit connecting to the hollow for regulating pressure in the hollow. Hence, the wafer heat-treatment system reduces power consumption by heating lamps by carrying out an evacuating process before the high-temperature heat-treatment process, and shortens the time necessary for the cool down process by a pressurizing process that is carried out after the completion of the high-temperature heat-treatment process.Type: GrantFiled: February 6, 2002Date of Patent: August 3, 2004Assignee: Semiconductor Leading Edge Technologies, Inc.Inventor: Yoshimasa Kawase
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Publication number: 20040146828Abstract: A refractory vessel that can be used as a gasifier for black liquor includes a generally cylindrical metal shell having a dome. A refractory shell has a cylindrical portion spaced inwardly from the metal shell and a dome portion that is spaced inwardly from the metal dome. The refractory shell is sized to provide an expansion gap between the liner and the metal shell. A selectively crushable liner is positioned in the gap. The liner has a predetermined yield stress that will provide controlled resistance to expansion of the refractory shell.Type: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Inventors: Zia Abdullah, John Peter Gorog
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Patent number: 6725787Abstract: A refractory vessel that can be used as a gasifier for black liquor includes a generally cylindrical metal shell having a dome. A refractory shell has a cylindrical portion spaced inwardly from the metal shell and a dome portion that is spaced inwardly from the metal dome. The refractory shell is sized to provide an expansion gap between the liner and the metal shell. A selectively crushable liner is positioned in the gap. The liner has a predetermined yield stress that will provide controlled resistance to expansion of the refractory shell.Type: GrantFiled: March 11, 2002Date of Patent: April 27, 2004Assignee: Weyerhaeuser CompanyInventors: Zia Abdullah, John Peter Gorog
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Publication number: 20030180677Abstract: A jig for heat treatment of a work capable of using for long period by eliminating or minimizing the deformation thereof due to thermal distortion and capable of efficiently performing the heat treatment of the work by reducing the amount of heat energy absorbed by the jig in a heat treating furnace, comprising an outer peripheral frame (2) formed of a plurality of members and a placing part (3) disposed in the outer peripheral frame (2) and formed of a plurality of members for placing the work (4), wherein the members are movably connected to each other, and the connection of the members forming the outer peripheral frame (2) to each other and the connection of these members to the members forming the placing part (3) are performed through extension intervals (5) capable of absorbing the extension of the members when the members are thermally expanded.Type: ApplicationFiled: March 6, 2003Publication date: September 25, 2003Inventors: Masaaki Akiyama, Akira Ogishima, Kazumasa Sugiyama, Koichi Sakamoto, Kazumi Matsumoto
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Patent number: 6540510Abstract: A refractory vessel comprising a metal shell having a generally cylindrical portion and an upper hemispherical dome. A refractory liner has a cylindrical portion spaced inwardly from the cylindrical portion of the metal shell and a hemispherical portion spaced inwardly from the dome. The hemispherical portion has a plurality of layers of refractory brick forming successively higher and lesser diameter rings. At least a portion of the rings have mating keys and keyways to restrain the layers of bricks in a vertical direction.Type: GrantFiled: March 11, 2002Date of Patent: April 1, 2003Assignee: Weyerhaeuser CompanyInventors: Zia Abdullah, John Peter Gorog
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Publication number: 20030003414Abstract: This invention is directed to a method for carrying out combustion in a furnace having porous walls with a large surface area comprising providing a combustion zone containing an atmosphere of furnace gases. A low velocity oxidant stream is injected through at least one oxidant injection side of the porous walls into the combustion zone and mixing furnace gases with the oxidant stream in a mixing zone within the combustion zone to produce an oxidant mixture. A fuel stream is injected through at least one fuel injection side adjacent to the oxidant injection side in the combustion zone. The oxidant mixture is mixed with the fuel stream to create a fuel-oxidant mixture.Type: ApplicationFiled: June 3, 2002Publication date: January 2, 2003Inventor: Hisashi Kobayashi
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Publication number: 20020146658Abstract: A high-temperature, non-catalytic, infrared heater is formed within a housing having a bottom and at least one side lined with a refractory material. The burner includes a burner surface area and is positioned within the housing. A re-radiating surface is positioned above the burner and comprises a mesh having a re-radiating surface area greater than the burner surface area with the re-radiating surface operating between approximately 400° F. and 2200° F.Type: ApplicationFiled: January 24, 2002Publication date: October 10, 2002Inventors: Mounir Ibrahim, Thomas D. Briselden
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Patent number: 6368102Abstract: A high-temperature, non-catalytic, infrared heater is formed within a housing having a bottom and at least one side lined with a refractory material. The burner includes a burner surface area and is positioned within the housing. A re-radiating surface is positioned above the burner and comprises a mesh having a re-radiating surface area greater than the burner surface area with the re-radiating surface operating between approximately 400° F. and 2200°F.Type: GrantFiled: December 1, 2000Date of Patent: April 9, 2002Assignee: Cleveland State UniversityInventors: Mounir Ibrahim, Thomas D. Briselden
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Publication number: 20010053509Abstract: A flexible, relatively lightweight workpiece support tray includes a plurality of spacers juxtaposed between a plurality of lateral I-beams, the I-beams being held together through a plurality of rods. Each of the lateral I-beams has a recess for receiving a tab on each side of the spacers. Each end of the rods is provided with a split ring welded thereon to removably retain the assembly together. A pair of shoes is located on the bottom intended side of the tray, and a puller/pusher bar is attached to each end of the shoe for engaging the drive mechanism of the furnace. The invention uses articulating attachments, including includes a slide connector and T-connector spot welded into place, for joining one tray to another to obtain a floating feature.Type: ApplicationFiled: June 14, 2001Publication date: December 20, 2001Inventors: Lawrence Ricchio, Ahmed Abada, Christopher Roys
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Patent number: 6286442Abstract: A support device for a furnace, particularly the bottom furnace of a flash smelting furnace, includes a fastening device flexibly connecting a pillar element to a support structure. The pillar element includes a support part having a slot for receiving a counterpart attached to the support structure. The engagement of the counterpart with the slot controls the horizontal motion of the pillar element as the furnace walls move caused by thermal expansion.Type: GrantFiled: August 31, 2000Date of Patent: September 11, 2001Assignee: Outokumpu OyjInventor: Markus Ranki
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Publication number: 20010001365Abstract: A block assembly for a lehr includes a plurality of blocks extending longitudinally, each of the blocks having a seal surface for mating and overlapping with an adjacent one of the blocks.Type: ApplicationFiled: February 26, 1998Publication date: May 24, 2001Inventor: PREMAKARAN T. BOAZ
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Patent number: 6074206Abstract: An industrial oven uses bi-directional expansion joints to accommodate lateral and longitudinal movement intersecting support beams of the oven's structural framework resulting from expansion of the support beams, the supported beams, and/or other oven components. The intersecting support beams may, for instance, comprise either roof purlins 1) and underlying roof trusses or 2) floor support members and underlying oven base support beams. Each bi-directional expansion joint includes a bracket permitting relative longitudinal and lateral movement between the support beams and the associated supported beams. The brackets preferably comprise L-shaped brackets each having 1) a vertical leg connected to the associated supported beam(s), 2) a horizontal leg connect to the associated support beam, and 3) expansion slots permitting lateral movement between the support beam and the bracket and longitudinal movement between the supported beam(s) and the bracket.Type: GrantFiled: November 17, 1998Date of Patent: June 13, 2000Assignee: Wisconsin Oven CorporationInventor: Duane H. Lauersdorf
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Patent number: 6055977Abstract: Disclosed is a window construction for a heater, which generally has a frame and at least one panel fitted on the frame. The frame and the at least one panel are usually made of different materials having different expansion coefficients. An expansion compensator made of bimetallic material is provided to the window located between the frame and a distal portion of the at least one panel to otherwise contact the frame. The expansion compensator compensates the differential expansions occurring between the frame and the at least one panel as the heater temperature changes.Type: GrantFiled: October 30, 1998Date of Patent: May 2, 2000Assignee: Thermic InvestmentInventor: Gerard Linard
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Patent number: 5913678Abstract: In an arrangement for sealing combustion-chamber bricks (8) which are force-cooled in a convective manner, the bricks (8) being arranged in at least two brick rows (6) in accordance with of an increasing combustion-space diameter and being put into supporting casings (7), and the cooling medium (12) flowing between brick (8) and supporting casing (7), and a gap (9) being present between the supporting casing (7) of the preceding brick row (6) and the respectively following brick row (6), which gap (9) is sealed by means of a seal (10), a plurality of springs (11) are firmly anchored to the supporting casing (7) in a distributed manner over the periphery, which springs (11) are connected to the seal (10) and press the seal (10) into the gap (9) between supporting casing (7) and brick (8) at least during the operation of the combustion chamber. The sealing effect is thereby increased without thermal stresses being introduced.Type: GrantFiled: October 14, 1997Date of Patent: June 22, 1999Assignee: ABB Research Ltd.Inventor: Rainer Hocker
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Patent number: 5910006Abstract: An assembly for use in mounting a lid on a kiln body. An anchor member is mounted on a side surface of the kiln body defined by a metal outer layer of the body, which anchor member has a horizontal pivot pin fixed adjacent its upper end. Spaced hinge portions are attached to the periphery of the lid and have surfaces defining through openings receiving and being pivotable about the pivot pin, including generally vertically extending surfaces that afford vertical movement of the lid relative to the pivot pin to accommodate vertical expansion of a ceramic lining in the kiln during heating of the kiln. The assembly also includes a force transfer structure including (1) a pivot portion pivotably mounted on the pivot pin and projecting from the pivot pin along the periphery of the lid and above the upper surface of the lid, and (2) a transverse portion attached to an upper part of the pivot portion.Type: GrantFiled: June 1, 1997Date of Patent: June 8, 1999Assignees: Michael D. Conroy, Jay A. JohnsonInventors: Michael D. Conroy, Jay A. Johnson, Claude E. Cybulski, Eric R. Cybulski
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Patent number: 5840436Abstract: A rectangular spalling-resistant refractory setter for use in heating furnace, which is made of a material having a bending strength of 1,000 kgf/cm.sup.2 or higher at 1,000-1,300.degree. C. and which has slits extending from each of at least one pair of the parallel sides of the setter toward the opposite side in a length of 15-35% based on the length of each side which is parallel to the slit.A creep-resistant setter which is made of a Si--SiC sintered material containing controlled amounts of impurities and having a controlled porosity.An oxidation-resistant setter which is made of a Si--SiC sintered material containing controlled amounts of impurities and having a controlled porosity.These setters are superior in spalling resistance, creep resistance and oxidation resistance, can mount thereon an increased amount of materials to be fired, and give a higher firing efficiency.Type: GrantFiled: October 21, 1996Date of Patent: November 24, 1998Assignee: NGK Insulators, Ltd.Inventors: Shigeru Hanzawa, Tsuneo Komiyama
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Patent number: 5704301Abstract: Rotary combustor and spring assembly therefor. The combustor includes a tire surrounding a kiln and a spring assembly interposed between the tire and kiln for interconnecting the tire and kiln. The spring assembly includes a clevis member attached to the tire and a spring member having an end portion thereof pivotally connected to the clevis member and an intermediate portion thereof attached to the kiln. The other end portion of the spring member is pivotally connected to an adjacent clevis member. The spring member allows for relative motion of the tire and the kiln as the first and second end portions of the spring member pivot about their respective clevis members.Type: GrantFiled: November 7, 1995Date of Patent: January 6, 1998Assignee: Westinghouse Electric CorporationInventor: George A. Blasiole
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Patent number: 5429176Abstract: A thermal radiation baffle for apparatus for use in directional solidification of crystalline material, to be mounted at one end of a furnace, and to allow a mould containing the material in molten form to pass through, has at least one clamped layer of interconnected flexible strips of refractory material. Each such layer has an ordered construction, for example, with the strips being interwoven, or knitted; and has one or more slits therein. At least substantially the whole of each slit is inclined at a significant angle to the strips, so that the strips do not become detached or worn in use, but the layer is capable of resiliently engaging the sides of, for example, an irregularly shaped mould. A slit may be provided between two separate, but adjacent, pieces of the layer.Type: GrantFiled: September 19, 1994Date of Patent: July 4, 1995Assignee: T&N Technology LimitedInventors: Alan W. Atkinson, Melanie J. Walsh
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Patent number: 5366596Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion; anda rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.Type: GrantFiled: June 9, 1993Date of Patent: November 22, 1994Assignee: Alberta Oil Sands Technology and Research AuthorityInventors: William Taciuk, Roderick Caple, Sean Goodwin, Gordon Taciuk
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Patent number: 5290189Abstract: Modifications are provided to a standard, batch type industrial heat treat furnace of a hot wall design which permit the furnace to be operated efficiently at high temperatures. The furnace is of a cylindrical design having a forward heat treat chamber and a rearward plenum chamber with a flat bulkhead plate in-between the chambers. The bulkhead has exit and inlet openings permitting wind mass to flow to the heat treat chamber and back to the plenum chamber. The bulkhead has a plurality of radially extending slits formed therein which permit the bulkhead to remain flat despite temperature and pressure gradients resulting in expansion/contraction of the bulkhead. Additionally, the furnace includes a closed end muffle within the heat treat chamber into which work to be heat treated is placed. A water cooled spring biasing support is provided for the closed end of the muffle to resist downward deformation of the muffle at high temperatures.Type: GrantFiled: August 26, 1993Date of Patent: March 1, 1994Assignee: Gas Research InstituteInventors: Klaus H. Hemsath, James E. Lyon
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Patent number: 5277580Abstract: An improved wall construction system for refractory furnaces is disclosed. The system includes an outer support structure into which are incorporated a plurality of connecting pin receiving sleeves or apertures. The system further includes a plurality of regularly-shaped bricks which have engaging members and receiving cavities on the ends of the bricks and on the upper and lower surfaces of the bricks. The engaging members and receiving cavities are adapted to interlock the bricks relatively to each other to preclude lateral movement. The system further includes a plurality of anchoring members which are adapted to be received between an engaging member and a receiving cavity of adjacent bricks. The anchoring members further extend out from the bricks and include a connecting pin shaped and sized to engage within the apertures in this first support structure in order to anchor the brick wall system to the outer support system in use.Type: GrantFiled: February 16, 1993Date of Patent: January 11, 1994Assignee: Lea-Con, Inc.Inventor: John Miskolczi, Jr.
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Patent number: 5259758Abstract: An industrial oven has insulated walls and insulated doors each including an inner shell connected to an outer shell by a plurality of pins extending through oversized holes in sheet metal plates forming the inner shell. The metal plates are simple metal sheets which can be easily sheared to size. The pins can compensate for significant misalignment between the inner and outer shells and do not require any modification of the insulation layers prior to mounting on the pins. Measures are also taken to permit expansion of the floor and air distribution system without requiring complex interconnections of the floor plates or of the air distribution system to the oven walls. Elements which are exposed to both hot and cold temperatures are designed so as not to warp or buckle under the temperature differentials between the inner and outer shells of each oven wall.Type: GrantFiled: November 25, 1992Date of Patent: November 9, 1993Assignee: Wisconsin Oven CorporationInventor: Duane H. Lauersdorf
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Patent number: 5258101Abstract: A pyrolytic converter utilizing a rotatable drum surrounded by an outer drum support structure and disposed in an oven chamber pyrolyzes materials including plastic waste, tires, materials from automobile shredding operations, containers and trays of plastic material, rubber, leather, garbage, sewage sludge, coal, oil shale, broken asphalt and the like. These materials are formed into cartridges by a compactor using a reciprocating ram which forms cartridges in an injection tube wherein another ram injects the cartridges into the converter drum. The converter is disposed on a fulcrum near the injection end thereof while the discharge end is suspended by cables to accommodate thermal expansion of the converter. Cables also suspend collection and separation apparatus having water filled chutes, into one of which the products of pyrolyzation of low density (char) and solids of higher density are discharged from the converter drum. Lower and higher density solids are separately collected tanks.Type: GrantFiled: October 11, 1991Date of Patent: November 2, 1993Assignee: Wayne Technology Corp.Inventor: Fred A. Breu
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Patent number: 5254001Abstract: A tuckstone assembly (14) for an industrial type furnace (10) fills a space between a wall of the furnace and a supporting member (19) that supports the furnace superstructure. The tuckstone assembly (14) has a support block (26) having a sloped upper surface (27) and a nose block (37) having a mating sloped lower surface (38). The longitudinal profile of the tuckstone is reduced for insertion in the space of the furnace wall by sliding the nose block forwardly, and the enlarged nose portion (42) is made to cover the support plate (19) by sliding the nose block (37) back to where the ends of the support block and the nose block substantially coincide.Type: GrantFiled: March 16, 1992Date of Patent: October 19, 1993Assignee: Dyko Industriekeramik GmbHInventor: H. Gunter Frolich
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Patent number: 5172848Abstract: A convection braze furnace for brazing aluminum heat exchangers in an inert gas rich atmosphere includes entrance and exit vestibules forming atmosphere barriers of suspended stainless steel strips. The interior of the braze furnace is divided into multiple zones for progressively heating the heat exchangers to a brazing temperature and then cooling the heat exchangers in the final zone. An impeller circulates the heated inert gas atmosphere within each zone to accelerate heat transfer. A chain type conveyor supports the heat exchangers as they are moved through the braze furnace. An isolated return tube surrounds the lower return side of the conveyor chain as it passes through the braze furnace. The braze furnace housing is comprised of inner and outer shells having an inert gas pressurized cavity interstitial therebetween. The inner shell includes a plurality of expansion strips having generally ellipsoidal corner expansion joints.Type: GrantFiled: September 25, 1991Date of Patent: December 22, 1992Assignee: General Motors CorporationInventors: Brian L. Barten, Gary A. Halstead
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Patent number: 5172847Abstract: A convection braze furnace for brazing aluminum heat exchangers in an inert gas rich atmosphere includes entrance and exit vestibules forming atmosphere barriers of suspended stainless steel strips. The interior of the braze furnace is divided into multiple zones for progressively heating the heat exchangers to a brazing temperature and then cooling the heat exchangers in the final zone. An impeller circulates the heated inert gas atmosphere within each zone to accelerate heat transfer. A chain type conveyor supports the heat exchangers as they are moved through the braze furnace. An isolated return tube surrounds the lower return side of the conveyor chain as it passes through the braze furnace. The braze furnace housing is comprised of inner and outer shells having an inert gas pressurized cavity interstitial therebetween. The inner shell includes a plurality of expansion strips having generally ellipsoidal corner expansion joints.Type: GrantFiled: September 25, 1991Date of Patent: December 22, 1992Assignee: General Motors CorporationInventors: Brian L. Barten, Gary A. Halstead
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Patent number: 5169310Abstract: A hermetic package for an electronic device is manufactured by providing a green glass ceramic body with a green via to produce a workpiece. The workpiece is sintered at a temperature at or above 500.degree. C., while compressing the workpiece at a pressure at or above 100 pounds per square inch, so as to obtain a hermetic package. The green via comprises a mixture of copper and a glass ceramic material with a sufficient volume of glass to produce a hermetic package, yet with sufficient copper to have a suitable electrical conductivity.The hermetic package thus produced comprises a sintered glass ceramic body having an electrically conductive sintered via which is hermetically bonded to the glass ceramic body and which comprises a mixture of an electrically conductive material and a glass ceramic material. The electrically conductive material forms at most 50 volume percent of the via.The workpeice may be sintered in a sintering fixture having a frame and a compensating insert.Type: GrantFiled: September 11, 1991Date of Patent: December 8, 1992Assignee: International Business Machines Corp.Inventors: Dudley A. Chance, David B. Goland, Ho-Ming Tong
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Patent number: 5136860Abstract: In order to be able to operate chambers for the continuous fluid treatment of textile yarns and which comprise several chamber parts with an improved sealing effect, even at elevated pressures and temperatures when aggressive fluids are used, one or both sealing faces of superimposed sealing face pairs undergo shape correction. The shape correction opposes the elastic deformation undergone by the sealing faces when loaded under operating conditions.Type: GrantFiled: November 28, 1990Date of Patent: August 11, 1992Assignee: Rieter Machine Works, Ltd.Inventor: Felix Graf
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Patent number: 4997366Abstract: A rear module wall before a burn-in system that provides burn-in boards for electronic components to permit passing connections through slots while maintaining a good heat seal. The module rear wall is a sandwich type construction of a plurality of layers with insulating silicon rubber sandwiched between slotted backing sheets to provide for double insulation for the boards as then are slid through the slots from the interior of the oven into a tempered zone or to the exterior where they are connected to driver receiver boards and other connections.Type: GrantFiled: February 5, 1990Date of Patent: March 5, 1991Assignee: Micro Control CompanyInventors: Harold E. Hamilton, Brian R. Bloch
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Patent number: 4968009Abstract: A cooling device for a high pressure vessel which is simple in construction and high in safety and has a high cooling faculty without the necessity of changing a design of the high pressure vessel. The cooling device has a cylindrical cooling medium jacket having a cooling medium passage formed therein. The cooling medium jacket is removably disposed in a high pressure chamber of the high pressure vessel between the high pressure vessel and an insulation mantle surrounding a heater in the high pressure chamber such that a gap may be left between the high pressure vessel and the cooling medium jacket. The cooling medium jacket has a passage hole formed therein for establishing communication between the gap and the high pressure chamber to allow pressure medium to be introduced into the gap.Type: GrantFiled: August 23, 1989Date of Patent: November 6, 1990Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Akira Asari, Takahiko Ishii, Yutaka Narukawa