Tortuous, Branched Or Baffled Heating Flue Means Within Or Along Chamber Wall Patents (Class 432/212)
  • Patent number: 8790115
    Abstract: A method is described for preheating annealing goods in a hood-type annealing installation, comprising two annealing bases (1, 2) which accommodate the annealing goods (3, 4) under a protective cover (7, 8), with the annealing goods (3) to be subjected to a heat treatment under a protective cover (8) being preheated with the help of a gaseous heat carrier which is guided in a cycle between two protective covers (7, 8) and absorbs heat from annealing goods (4) which are heat-treated in a protective cover (7) and emits it to the annealing goods (3) to be preheated in the other protective cover (8). In order to avoid contaminations of the heat-treated annealing goods (4) it is proposed that the heat carrier flow guided in a cycle flows around the two protective covers (7, 8) on the outside, whereas a protective gas is circulated within the protective covers (7, 8).
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: July 29, 2014
    Assignee: Ebner Industrieofenbau Gesellschaft m.b.H.
    Inventors: Robert Ebner, Gerhard Denk, Heribert Lochner, Andreas Sauschlager
  • Patent number: 8490581
    Abstract: A fired heater unit is disclosed having at least one radiant heating section with each of the at least one radiant heating section having a heating element located therein. The unit includes a convection section operatively connected to the at least one radiant heating section, wherein the convection section having at least one vertically oriented convection tube. Each of the at least one convection tube being operatively connected to the at least one radiant heating section. Each of the at least one convection tube includes an inner tube having process fluid flowing therethrough, wherein the process fluid being heated by the at least one radiant heating section, and an outer tube extending along a predetermined portion of the inner tube, wherein the outer tube is spaced from the inner tube to form a flow path therebetween.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: July 23, 2013
    Assignees: ExxonMobil Research and Engineering Company, Tiax, LLC.
    Inventors: San Chhotray, Thomas M. Rudy, Dennis L. Juedes, James P. Norton, Charles E. Benson
  • Patent number: 8033823
    Abstract: 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: Grant
    Filed: June 12, 2006
    Date of Patent: October 11, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Ken Nakao, Kazuhiko Kato
  • Patent number: 7871266
    Abstract: An oven apparatus including wall members which constitute an oven wall defining internal and external regions of an oven and partition walls forming oven compartments within the oven by defining internal and external regions thereof, the wall members including an inner wall panel facing an internal side of the oven or oven compartment, an outer wall panel facing the external side of the oven or oven compartment, and thermal insulation installed between the inner and outer wall panels, wherein a sealable ventilation port is formed on the inner wall panel, a sealable suction port is formed on the outer wall panel, and a suction-generator is connected to the suction port for evacuating the atmosphere within the wall member.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: January 18, 2011
    Assignee: Chugai Ro Co., Ltd.
    Inventor: Kinya Kisoda
  • Patent number: 7811085
    Abstract: A gas preheater (10) that includes an exit plate (20) having first and second sides (22, 24) and a plurality of through holes (26) and at least one body (34) mounted adjacent the first side (22), the at least one body (34) having a first end (36) and a second end (38), the second end (38) located between the body first end (36) and the exit plate first side (22), at least one sidewall (40) connecting the first and second ends (36, 38), a body opening (42) in the first end (36) extending into the body (34) and defining a body inner wall (44), and a plurality of passages (46) extending between the at least one sidewall (40) and the body inner wall (44).
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: October 12, 2010
    Assignee: Honeywell International Inc.
    Inventors: Brian J. Miller, Alan A. Arico, Akshay Waghray, Todd M. Menzie, James Jay Cress
  • Patent number: 7771194
    Abstract: A gas preheater (10) includes an entrance plate (12) having a first side (14), a second side (16), at least one opening (18) connecting the first side (14) and the second side (16), and a plurality of walls (19) on the second side (16) having tops (21) spaced from the second side (16), the walls (19) defining at least one circuitous pathway (22e, 22f, 22g, 22h) on the second side (16) beginning at the at least one opening (18), and a diffuser plate (40) having a first side and a second side and a plurality of holes (42) between the first side and the second side, the diffuser plate first side defining with the entrance plate second side (16) and the plurality of walls (19) at least one circuitous passage along the at least one circuitous pathway (22e, 22f, 22g, 22h), the at least one circuitous pathway having a first portion (22e1) leading from the at least one opening (18) and a second portion (22e2) spaced from the at least one opening (18), wherein the holes (42) in the diffuser plate (40) overlie the circ
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: August 10, 2010
    Assignee: Honeywell International Inc.
    Inventors: James Jay Cress, Brian J. Miller
  • Patent number: 7758339
    Abstract: A vacuum furnace with a gas manifold branching into a plurality of secondary gas manifolds, the secondary gas manifolds each including a valve that is contained in each secondary gas manifold; a hot gas plenum including an inner and an outer shell with the outer shell attached at one side to the secondary gas manifold; a series of gas restrictor walls between the inner and outer shells of the hot gas manifold that serves the purpose of dividing the plenum into a plurality of non-circumferential sectors so that the load in the plenum may be cooled from the top, bottom, left, or right side or any combination thereof.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: July 20, 2010
    Assignee: Jhawar Industries, Inc.
    Inventors: Suresh C. Jhawar, Ronald Garcia
  • Patent number: 7018485
    Abstract: An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate. The casing defines an inner space for receiving a container. The container includes an upper opening and stores the rare earth alloy block therein. A hydrogen gas and an inert gas are introduced into the inner space through the gas inlet port, and are exhausted from the inner space through the gas outlet port. The gaseous flow is produced by a fan, for example, in the inner space. The windbreak plate is disposed upstream with respect to the gaseous flow that has been produced inside the inner space. Also, the windbreak plate reduces a flow rate of the gaseous flow that has been produced near the upper opening of the container.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 28, 2006
    Assignee: Neomax Co., Ltd.
    Inventors: Akihito Tsujimoto, Katsumi Okayama, Shinji Kidowaki, Tadayoshi Muneto
  • Patent number: 6200132
    Abstract: An exhaust oven for heat treating and simultaneously evacuating cathode ray tubes includes a tunnel structure with a through passageway and temperature control apparatus for providing regulated heating and/or cooling of the atmosphere in one or more longitudinal zones of the passageway. The oven also includes apparatus for conveying the tubes along the passageway and exhaust ducts operatively connected to the necks of the tubes during conveyance to evacuate gases therefrom. Baffles within at least one of the zones of the passageway circulate the atmosphere about the exteriro of the tubes. The baffles include at least one inlet directing a flow of atmosphere to impinge onto the face of the screen panel of each tube and one or more outlets in adjacent spaced relationship to side edges of said panel and/or to the neck of the tube for exit of the flow of atmosphere from the baffles.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: March 13, 2001
    Assignee: Stein Atkinson Stordy Limited
    Inventor: Christopher Cyril Mundon
  • Patent number: 6015288
    Abstract: An exhaust oven for heat treating and simultaneously evacuating cathode ray tubes includes a tunnel structure with a through passageway and temperature control apparatus for providing regulated heating and/or cooling of the atmosphere in one or more longitudinal zones of the passageway. The oven also includes apparatus for conveying the tubes along the passageway and exhaust ducts operatively connected to the necks of the tubes during conveyance to evacuate gases therefrom. Baffles within at least one of the zones of the passageway circulate the atmosphere about the exterior of the tubes. The baffles include at least one inlet directing a flow of atmosphere to impinge onto the face of the screen panel of each tube and one or more outlets in adjacent spaced relationship to side edges of said panel and/or to the neck of the tube for exit of the flow of atmosphere from the baffles.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: January 18, 2000
    Assignee: Stein Atkinson Stordy Limited
    Inventor: Christopher Cyril Mundon
  • Patent number: 5295822
    Abstract: An improved convective heat transfer arrangement is disclosed achieving overall heat transfer efficiencies in the neighborhood of 30 Btu/(hr. ft.sup.2 .degree.F.). A heat transfer conduit including a heat transfer wall is axially divided into a plurality of axially extending heat transfer chambers by a plurality of transversely extending baffles. Each baffle is especially configured to have an axially extending recess formed therein through which extends an orifice opening. Heat transfer gas pumped through the conduit cascades through the heat transfer chambers forming and reforming nascent free standing jet streams through each baffle orifice which impinge the heat transfer wall to achieve very high heat transfer coefficients while efficiently utilizing the available heat in the heat transfer gas.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: March 22, 1994
    Assignee: Indugas, Inc.
    Inventor: Klaus H. Hemsath
  • Patent number: 5201682
    Abstract: A CRT exhaust oven for heat-treating CRTs includes an oven housing, a baffle structure accommodated in the oven housing for circulation of atmosphere within the oven housing, and a plurality of exhaust carts capable of travelling below the oven housing. Each of the exhaust carts is provided with two exhaust heads having different heights aligned in the direction of travel of the exhaust carts so that there is no clearance, as viewed from above, between two adjoining CRTs mounted on respective exhaust heads of each exhaust cart. Each of the exhaust carts travels intermittently below the oven housing. The baffle structure has a large number of upper and lower holes formed on respective sides thereof in the direction of travel of the exhaust carts.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: April 13, 1993
    Assignee: Chugai Ro Co., Ltd.
    Inventors: Hiroshige Nakagawa, Shigeo Yamamto
  • Patent number: 5018707
    Abstract: A heating mantle for heating materials, such as metals, alloys or inorganic chemicals in a retort, includes a tubular wall and annular chambers cooperating with said wall for forming a tortious path around the retort for hot gases. The mantle provides a very high convective heat transfer coefficient.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: May 28, 1991
    Assignee: Gas Research Institute
    Inventors: Klaus H. Hemsath, H. Kenneth Staffin, Michael Owsiany
  • Patent number: 4752268
    Abstract: An exhaust oven for cathode ray tubes having a housing and a baffle structure arranged within the housing for forming an atmosphere circulating passage between them. There are formed, at least in heating and slow cooling zones within the housing, plural pairs of upper discharge ports through which the circulating atmosphere is supplied towards panel portions of the cathode ray tubes. There are also plural pairs of lower discharge ports through which the circulating atmosphere is supplied towards funnel portions of the cathode ray tubes. Both the upper and lower discharge ports are located on respective sides in the housing. The positioning and discharge direction of the upper and lower discharge ports reduce the temperature difference between different portions of the cathode ray tubes to less than 10.degree. C. Thus, breakage of tubes owing to heat stresses is virtually eliminated.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: June 21, 1988
    Assignee: Chugai Ro Co., Ltd.
    Inventors: Satoshi Kataoka, Hiroshige Nakagawa
  • Patent number: 4310374
    Abstract: This disclosure is directed to a tire retreading machine which includes a chamber adapted to receive therein a plurality of stacked tires adapted to be retreaded therein, the chamber having an inner surface, and inwardly therefrom there being a radiant heater, a porous or perforated shield, and an imperforate or nonporous shield with the latter being axially shorter than the former and both shields being spaced from a bottom surface of the chamber such that upon heat being generated by the radiant heater, hot air convection currents are set up within the chamber flowing generally upwardly adjacent the chamber inner surface and flowing generally downwardly between the imperforate shield and tires within the chamber to create substantially uniform curing or retreading temperature throughout the chamber, lessening temperature gradients or hot spots, and also allowing radiant heat to pass through a lower portion of the porous shield adjacent the bottom surface of the chamber to augment temperature uniformity thro
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: January 12, 1982
    Assignee: Donald MacMillan & Son, Inc.
    Inventor: Kenneth T. MacMillan
  • Patent number: 4235830
    Abstract: Means and method of operating a tunnel kiln in which green carbon articles are baked in the ware (article) space of a baking zone by heat produced by the combustion of fuel directed to chambers adjacent the zone. The combustion chambers are connected in fluid communication with flues extending lengthwise of the kiln, the flues having a pressure gradient that extends lengthwise of the flues. The method of the invention includes the step of changing the pressure gradient within the flues such that a pressure differential between the combustion chambers and the ware space is effected that causes products of combustion to flow into the ware space from the combustion chambers in amounts sufficient to impede and prevent the deposition of coke formations on the walls of the space without burning the carbon articles.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: November 25, 1980
    Assignees: Aluminum Company of America, Pullman Incorporated
    Inventors: Robert F. Bennett, Warren D. Brown, Clarence L. Patterson, John C. Sorensen
  • Patent number: 4050890
    Abstract: A hot melt body for an applicator or dispenser of thermoplastic adhesive first received in solid form, either as a progressively fed rod or in another mode, is provided having especial advantage in a light-weight hand-type device. The main melt chamber and its auxiliary channels as well as their interconnecting passageways are of configuration and spacing to effect maximum efficiency in transfering melting heat from a heating means to the adhesive being liquefied. To this end, also, complemental portions of the body include passageways designed to provide minimum, substantially uniform resistance to advance of the solid adhesive along the length of the melt body.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: September 27, 1977
    Assignee: USM Corporation
    Inventors: Richard Montgomery Elliott, Albert Eugene Newton
  • Patent number: 4042318
    Abstract: For the continuous melting of salts to be used for modifying the properties of objects of glass or similar materials, an apparatus is provided with inner and outer vessels, an annular chamber between the vessels for containing a heat exchange fluid, ribs on the outer walls of the inner vessel for guiding the heat exchange fluid and assisting heat exchange from the heat exchange fluid to the inner vessel, means for transferring heat to the heat exchange fluid, means for circulating the heat exchange fluid through the chamber, means for admitting the salt to the inner vessel, the inner vessel having an upper portion of a semi-circular profile defining a radiant heating surface for radiating heat downwardly onto the salt and having a lower portion of approximately triangular to parabolic profile defining a conduction heating surface for transferring heat to the salt by conduction, the upper surface to be formed by the salt charged to the inner vessel defining a melting surface and the ratio of the area of the ra
    Type: Grant
    Filed: July 18, 1975
    Date of Patent: August 16, 1977
    Assignee: VVB Haushalts- und Verpackungsglas
    Inventors: Johannes Franke, Kurt Kessler, Wolfgang Muller, Heinz Sauerbier, Kurt Schneider, Karl Unbehaun
  • Patent number: 3975149
    Abstract: A ring furnace including pits bounded laterally by side wall flues, the side wall flues being connected in series by means for conducting gases between the side wall flues of the pits, so that heat in previously fired side wall flues can preheat air for combustion in a fired side wall flue and exhaust gases from the fired side wall flue can give up heat to articles in pits bounded by yet-to-be-fired side wall flues, wherein the improvement includes a Y-baffle inverted and centered in at least one of the side wall flues.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: August 17, 1976
    Assignee: Aluminum Company of America
    Inventors: Bernard J. Racunas, Raymond Kastelic