Material Advancer In Shelf To Shelf Device Patents (Class 165/93)
  • Patent number: 8382471
    Abstract: A multiple hearth furnace including a rabble arm with a tubular structure and a solid plug body. The latter is received in a socket arranged in an arm fixing node. It has an axial through boring and cooling fluid supply and return channels arranged around this through boring. A clamping bolt is rotatably fitted in the through boring. It has a bolt head, which can be brought by rotation into and out of hooking engagement with an abutment surface on the arm fixing node. A threaded end of the clamping bolt sticks out of the through boring at the rear end of the plug body. A threaded sleeve, which is screwed onto this threaded end, bears on an abutment surface at the rear end of the plug body for exerting a clamping force onto the clamping bolt.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 26, 2013
    Assignee: Paul Wurth S.A.
    Inventors: Emile Lonardi, Patrick Hutmacher, Edgar Kraemer, Paul Tockert
  • Patent number: 6129139
    Abstract: Anti-leak two-port and three-port poppet valves for a regenerative thermal oxidizer in which a gas such as contaminated air is first passed through a hot heat-exchange bed and into a communicating high temperature oxidation (combustion) chamber or zone, and then through a relatively cool second heat exchange bed. The alternating of the heat transfer zones to provide matrix regeneration is accomplished via regenerative thermal oxidizer switching valves. In the preferred embodiment of the present invention, the switching valves are horizontal pneumatic poppet type valves in a consolidated housing, the valve's switching frequency or cycle being a function of volumetric flow rate.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: October 10, 2000
    Assignee: Megtec Systems Inc.
    Inventor: John D. De Clerc
  • Patent number: 5690164
    Abstract: A method is provided for heating a gas in a regenerator with a heat accumulation mass consisting of a loose bulk material arranged in a ring between two coaxial cylindrical grids, a hot collection chamber, surrounded by the inner hot grid, for the hot gases and a cold collection chamber, enclosed between the outer cold grid, on the one hand, and the wall of the regenerator, on the other hand, for the cold gases, wherein the increase in the head loss during the heating phase is at least 5 times as great as the product .rho..g.H, in which H is the height of the regenerator, .rho. is the density of the gas at a temperature of 20.degree. C. and g is the acceleration due to gravity, and the gas flow rate is at least equal to 300 m.sup.3 N/h.m.sup.2 of surface area of the hot grid at standard pressure.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: November 25, 1997
    Assignee: L'Air Liquide, Societe Anonyme pour L'Etude et L'Exploitation des Procedes Georges Claude
    Inventor: Hans-Georg Fassbinder
  • Patent number: 5443040
    Abstract: A pipestill heater capable of increasing heat efficiency without using a large-sized oxidizing agent heating unit. The pipestill heater includes a radiation section and a convection section for preheating process fluid by exhaust gas of an elevated temperature discharged through a gas discharge path. A combustion device including a combination of a burner and a heat exchanger is arranged on a furnace floor constituting a part of a furnace wall. The heat exchanger includes a regenerator heated by exhaust gas to heat an oxidizing agent and a duct structure including an oxidizing agent passage and an exhaust passage. The regenerator is rotated relative to both passages. Exhaust gas is guided through both a gas discharge path and an exhaust passage.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: August 22, 1995
    Assignee: Chiyoda Corporation
    Inventors: Hitoshi Kaji, Toshiaki Yoshioka
  • Patent number: 5419388
    Abstract: A regenerative heat exchanger system includes a heat accumulator provided in an insulating vessel for accumulating heat energy, the heat accumulator having a first end and a second end opposing to the first end and being capable of permitting gas to flow through a body between the first and second ends, a heating device for heating the heat accumulator in such a manner that the heat accumulator is formed with a plurality of temperature-different regions, a medium gas-supplying device for flowing medium gas through the plurality of temperature-different regions independently from one another.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: May 30, 1995
    Assignee: Fluidyne Engineering Corporation
    Inventors: Steven D. Hickel, Lynn C. Marksberry, Toshikazu Yamamura, Shuuhei Natani, Toshio Kurosaka
  • Patent number: 5154224
    Abstract: A refractory brick for a glass fusion furnace includes a triangular hollow-prism type brick body (1) having a flow passage (1c) formed so as to extend between two opposite ends of the brick. The flow passage (1c) has a substantially triangular cross-section.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: October 13, 1992
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Kouhei Yasui, Takeshi Nakamura, Tsutomu Iwaguchi, Hideki Igarashi
  • Patent number: 5127463
    Abstract: A refractory brick segment for use in a heat regenerator is made of an electrocast refractory material in the shape of a tube. The brick segment has a wall thickness of from 35 mm to 75 mm and a substantially rectangular cross-section. All of an inner side wall, an outer side wall and a corner wall have concave portions so as to have a total volume which is from 0.4 times or more to 0.85 times or less as large as that of a corresponding brick segment having no concave portions and a surface area per volume unit which is 1.5 times or more as large as that of a corresponding brick segment having no concave portions.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: July 7, 1992
    Assignee: Toshiba Monofrax Co., Ltd.
    Inventors: Kumio Hirata, Yasuo Saito
  • Patent number: 5052918
    Abstract: The present invention relates to a method and a regenerator for heating gases, by alternatingly first heating heat carriers, preferably a bed of heat carrier bodies, and thereafter utilizing this energy stored by the heat carriers to heat cold gases. The essential feature of the invention is that a loose bed of the heat carriers is located between two coaxial and equidistant grates of the regenerator, and that the hot gas flows through this bed from the inside to the outside during the heating up phase of the regenerator and the cold gas flows through it in the reverse direction, from the outside to the inside, during the gas heating phase. This method and the regenerator provide advantages for gas heating due to lower thermal losses of the regenerator itself, and increased heat transmission is obtained due to large heat exchange surfaces of the heat carriers in a bed with a relatively low pressure loss for the gas flowing through.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: October 1, 1991
    Assignee: Klockner CRA Patent GmbH
    Inventor: Hans-Georg Fassbinder
  • Patent number: 4842051
    Abstract: A rabble arm adapted to be connected to a rotatable center shaft of a multiple hearth furnace includes an elongated tubular member having an open end portion and an opposite closed end portion. The tubular member has an outside surface of substantially oval cross-sectional configuration and an inside surface arranged to form a hollow interior portion connected with the tubular member open end portion. The oval cross-sectional configuration of the tubular member outside surface defines a tubular member major axis and a tubular member minor axis displaced from the major axis by substantially 90.degree. C. A socket is connected to the tubular member open end portion. The socket and tubular member may include partitions or tubes which are connected upon assembly to form a flow path through the socket and tubular member for receiving a circulating cooling medium.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: June 27, 1989
    Inventor: David A. Brownlee
  • Patent number: 4671346
    Abstract: A regenerative heating system includes at least a pair of regenerators of the type which are operable so that while one is being heated by waste gas the other is heating air for the combustion of fuel. The system includes a pair of regenerators 1 and 2 which are interconnected adjacent one end to form a chamber 4 having an outlet 8 to discharge waste gas flow into the chamber from one or other of the regenerators. Air nozzles 7 extend into the chamber 4 to inject air into the regenerators 1 and 2 during the air heating cycle of regenerator. The waste gas may be removed by the suction force of a fan or eductor.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: June 9, 1987
    Assignee: British Gas Corporation
    Inventors: Jeffery Masters, Roger J. Webb
  • Patent number: 4671345
    Abstract: A regenerative heating system comprises two heat regenerators 1 and 2 of the type which are operable so that while one is being heated by waste gas the other is heating air for the combustion of fuel. The regenerators 1 and 2 communicate with each other adjacent one end to form a chamber 11 into which fuel gas is injected by means of a fuel pipe 3. The waste gas enters its respective regenerator by way of end 8 and passes through the bed 5 of the regenerator which stores the heat. Air travelling in the opposite direction is heated in the bed 5 and entrains the fuel gas. The steps 12 provide a venturi or choke effect on the air causing the pressure in the regenerator heating air to be lower than that in the regenerator being heated by waste gas. Fuel gas is thereby drawn into the air stream for admixture therewith and ignition for combustion by means of a pilot light 14.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: June 9, 1987
    Assignee: British Gas Corporation
    Inventors: Jeffery Masters, Roger J. Webb
  • Patent number: 4506726
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing flow control gas jets in the space alongside the regenerator packing to counteract flow imbalances in the regenerator.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: March 26, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Yih-Wan Tsai
  • Patent number: 4432412
    Abstract: Cooling device for coal dust comprising a housing, a motor-driven conveyor system therein to transport the coal dust over coolable trays in the housing and conveyor-wheel arms of spiral curvature for moving the coal dust from one or more inlets to one or more outlets via a series of communicating passages in the trays over which the conveyor-wheel arms pass under actuation of a hydraulic motor mounted above the housing and driving a vertical shaft, to which the conveyor-wheel arms are attached, extending centrally downwardly through the housing.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: February 21, 1984
    Inventor: Lothar Teske
  • Patent number: 4378045
    Abstract: Disclosed are checker tiles for regenerative heating stoves, each tile having the general shape of a parallelepiped, the preferred tile being square in plan, having apertures extending through the tiles and having complementary ribs and grooves extending on the ends of the tile between adjacent apertures to interlock the tiles with contiguous end-abutting tiles and prevent substantial lateral movement thereof when the tiles are arranged in stacked overlapping relation.Also disclosed is supporting means for checker tiles providing for low friction and preferential sliding of horizontal contacting surfaces to permit lateral relative movement between the lowermost course of tiles and supporting means that avoids damage to tiles on dimensional changes of the tiles or supporting means due to temperature changes in operation of the stove.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: March 29, 1983
    Assignee: Davy Inc.
    Inventors: George L. Balke, Edward F. Jablonski
  • Patent number: 4375235
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing a gas stream, preferably a high velocity burner, in the plenum of the regenerator to control gas flow distribution within the regenerator.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: March 1, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Yih W. Tsai
  • Patent number: 4375236
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing air jets in the space alongside the regenerator packing opposite the flue to counteract flow imbalances in the regenerator.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: March 1, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Yih W. Tsai
  • Patent number: 4353413
    Abstract: A dryer is provided with interacting heat transfer stator and rotor for improved processing capability. The stator comprises a stationary row of planar heat exchange banks supported within the vessel of the dryer. The rotor has a complemental number of annular heat exchange vanes interleaved between the heat exchange banks of the stator to create desired low-level agitation of the processed material as the rotor turns and to provide increased heat transfer efficiency. The vanes on the rotor and the banks of the stator each comprise an open grillwork of tubular members whereby the processed material may flow freely through the vanes and banks for additionally increased heat transfer efficiency and reduced residence time for the material.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: October 12, 1982
    Assignee: Chemetron Process Equipment, Inc.
    Inventors: William M. Allen, Gordon C. Trabue
  • Patent number: 4346753
    Abstract: Regenerator checkerbrick for a blast furnace stove system embody a hexagonal configuration. A central flow space for a heat exchange medium has six planar wall surfaces. An array of outer flow spaces each have six planar wall surfaces, one of which is parallel with a wall surface of the central flow space. All walls are uniformly thick and the external walls have a thickness about one-half the thickness of the internal walls.
    Type: Grant
    Filed: January 6, 1981
    Date of Patent: August 31, 1982
    Assignee: Bricmont & Associates, Inc.
    Inventor: Stanley J. Kletch
  • Patent number: 4322205
    Abstract: A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: March 30, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Paul B. Hasselquist, Richard Baldner
  • Patent number: 4308910
    Abstract: Disclosed are checker tiles for regenerative heating stoves, each tile having the general shape of a parallelepiped, the preferred tile being square in plan, having apertures extending through the tiles and having complementary ribs and grooves extending on the ends of the tile between adjacent apertures to interlock the tiles with contiguous end-abutting tiles and prevent substantial lateral movement thereof when the tiles are arranged in stacked overlapping relation.Also disclosed is supporting means for checker tiles providing for low friction and preferential sliding of horizontal contacting surfaces to permit lateral relative movement between the lowermost course of tiles and supporting means that avoids damage to tiles on dimensional changes of the tiles or supporting means due to temperature changes in operation of the stove.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: January 5, 1982
    Assignee: Davy Inc.
    Inventors: George L. Balke, Edward F. Jablonski
  • Patent number: 4257476
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerating regenerator packing is minimized and heating of the regenerator packing is made more uniform by the utilization of a manifold flue. The gas distribution space is in continuous contact with the regenerator packing while the manifold flue is joined to said gas distribution space at a plurality of points below the regenerative packing. Further, flow control dampers may be located in the flue between the regenerative packing and the joining point of the manifold flue and another damper may be in the manifold flue itself to regulate the passage of gas to and from the regenerative packing so that the packing is evenly heated or cooled.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: March 24, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Yih-Wan Tsai
  • Patent number: 4256173
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerating regenerator packing is minimized and heating of the regenerator packing is made more uniform by the utilization of a second flue. The first flue passage is in continuous contact with the regenerative packing while the second passage is joined to said first passage at points at each end of the regenerative packing. Further, there are flow control dampers located in said first passageway between the regenerative packing and the joining point of the second bypass flue and another damper in the bypass flue itself to regulate the passage of hot gas to and from the regenerative packing so that the packing is evenly heated or cooled.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: March 17, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Yih-Wan Tsai, Robert H. Duffus
  • Patent number: 4244786
    Abstract: Double heating flues are arranged transversely to the horizontal axes of coke oven chambers within heating walls therefor. Side walls between each double heating flue have an internal passageway in the lower part communicating by exit orifices at vertically-spaced locations with the heating flues at the opposite sides of the side wall. The lower parts of the side walls converge horizontally into side wall portions some of which abut against the vertical heating wall and others extend through the vertical heating wall in an alternating arrangement of superimposed bricks. The upper parts of the side walls extend into load-bearing contact with the roof for the coke oven chambers. In the heating walls, three identical stretcher bricks in each course interlock by tongue-and-groove abutment joints. The middle brick abuts in a symmetrical relation with a flue side wall.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: January 13, 1981
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventor: Heinz Thubeauville
  • Patent number: 4235593
    Abstract: A blast stove having adjoining combustion and checker chambers, for use with a blast furnace. A support structure, mounted within the checker chamber, supports tiers of interlocked checkerbricks. The support structure includes vertically extending columns which loosely engage a series of transversely extending girders. The girders supportively engage a plurality of grid bar assemblies, each assembly including a plurality of grid bars maintained in a spaced relation by transverse rods and spacers welded to the bars and further including interlocking apparatus for engaging the underlying girders and an adjacent grid bar assembly. The grid bar assemblies support a plurality of grid shoes having grid assembly engaging grooves for interlocking the grid shoes to the grid bar assemblies. The top surface of the grid shoes include recesses which receive bosses located on the underside of the checkerbricks so that the first layer of checkerbricks, is engaged by the shoes.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: November 25, 1980
    Assignee: Republic Steel Corporation
    Inventor: William H. Malone
  • Patent number: 4088180
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing a movable baffle in the space beneath the regenerator packing and/or by a baffle in the plenum above the packing.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: May 9, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Yih-Wan Tsai
  • Patent number: 4047560
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing a movable baffle in the space beneath the regenerator packing and/or by a baffle in the plenum above the packing.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: September 13, 1977
    Assignee: PPG Industries, Inc.
    Inventor: Yih-Wan Tsai
  • Patent number: 3963072
    Abstract: A double-flow regenerator has several separate groups of tubes each of which is used for a respective fluid heat-exchange medium. These tubes are all received in a packed housing through which fluids to be treated are passed in heat-exchange relationship with the packing in the housing through the tubes in contact with this packing. Each group of tubes terminates within the housing at each end of a plurality of separate manifold connectors. Thus the middle of the housing is provided with a plurality of manifolds for the inner end of each tubing group and the outer end is provided with a plurality of such manifolds for each group, with several such manifold connectors provided for each group for minimum variation in tube lengths within the group.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: June 15, 1976
    Assignee: Linde Aktiengesellschaft
    Inventor: Norbert Wagner
  • Patent number: RE33814
    Abstract: Separate intake air and exhaust gas manifolds along each long checker-brick regenerator, each of which manifolds have separate adjustable sideports, valves, or gates in each branch duct that do not have to be readjusted each regeneration cycle, and which gates may be preadjusted and/or at-will adjusted from a common and even remote location.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: February 4, 1992
    Assignee: Toledo Engineering Co., Inc.
    Inventors: Robert O. Bradley, Heywood J. Knighton, deceased, Robert J. Naveaux