Patents Issued in December 16, 2004
  • Publication number: 20040250979
    Abstract: A vacuum casting die simpler in configuration and improved in seal performance in vacuum casting using a slide core, provided with a pair of main dies, a sealing member for seamlessly and continuously sealing mating faces around the closed space formed between the main dies, and a slide core housed in the sealed space formed between the main dies sealed by the sealing member.
    Type: Application
    Filed: May 17, 2004
    Publication date: December 16, 2004
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventor: Shoko Kubota
  • Publication number: 20040250980
    Abstract: A twin roll casting machine that can reduce an amount of inert gas to be fed for prevention of oxidization. The machine includes an enclosure enclosing a strip in a range from chilled rolls to pinch rolls, a first swing wall within the enclosure and having a tip end movable toward and away from a surface of the strip, a sealing roll rotatably supported by the tip end of the first swing wall, a second swing wall within the enclosure and having a tip end movable toward and away from the other surface of the strip, a sealing roll rotatably supported by the tip end of the second swing wall, sealing members between peripheral edges of the swing walls and an inner surface of the enclosure, and conduits for supplying inert gas into the enclosure. The respective swing walls are swung to bring the sealing rolls close to the strip to thereby suppress flow of the inert gas from a first space to a second space.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 16, 2004
    Inventors: Isamu Nakayama, Katsumi Nakayama, Shiro Osada
  • Publication number: 20040250981
    Abstract: The present invention relates to a casting roller for casting molten metal, particularly molten steel, having a roller body (2) made of a metallic material, onto which a coating (4) is applied, which is produced from a metal material having a greater hardness than the material of the roller body (2). The casting roller according to the invention has an increased service life and improved usage properties. This is achieved in that the coating (4), viewed over its thickness (D), has a lower hardness in its region bordering the roller body (2) than in the region of its free surface (5).
    Type: Application
    Filed: July 1, 2004
    Publication date: December 16, 2004
    Inventors: Guido Stebner, Werner Schuemers, Manfred Walter
  • Publication number: 20040250982
    Abstract: A molten metal sensing and automation system for use with or in a metal casting mold. Aspects of the invention include a molten metal automation system which may include a bleedout detection system which provides an automated response, and an automated system for the preparation of the starting blocks for casting.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Inventors: Michael K. Anderson, Robert L. Fletcher
  • Publication number: 20040250983
    Abstract: A device for detecting a leakage in a motor vehicle air conditioning system that utilizes carbon dioxide as the cooling material is provided. The device for detecting leakage includes: at least one sensor for rapid detection of especially high rate of increase of the carbon dioxide concentration and/or particularly high carbon dioxide concentration in the air of the passenger compartment; an evaluation device for evaluating the ascertained rate of increase and/or concentration; and at least one actuator which, in the case that the rate of increase and/or concentration exceeds a threshold value, performs a remedial action.
    Type: Application
    Filed: April 26, 2004
    Publication date: December 16, 2004
    Inventors: Michael Arndt, Gerd Lorenz, Thomas Sperlich
  • Publication number: 20040250984
    Abstract: A foldable floor heating panel can be folded longitudinally and laterally. The foldable floor heating panel includes several small plate-like members of a rectangular plan configuration, which are arranged longitudinally and laterally so as to be adjacent to each other. A flexible thin plate is attached to upper surfaces of the small plate-like members so as to allow longitudinal and lateral folding. Heat carrier flexible tube passages are provided in longitudinal and lateral folding portions of the panel so as to leave some play, and folding margin members are provided at the lateral folding portions. Fit-in members are attachably and detachably provided in respective heat carrier flexible tube passages with some play.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 16, 2004
    Inventors: Hitoshi Seki, Michiaki Inoue, Shigeko Iijima
  • Publication number: 20040250985
    Abstract: Drum intermediate transfer member or fuser apparatus, for use in a printer or copier, comprising: a drum having a drum surface and including a liquid-containing region in the interior of the drum thermally connected to the drum surface, such that the liquid is capable of heating and cooling the drum surface; and a liquid transfer system including a hot liquid reservoir, a cold liquid reservoir, at least one pump, pipes and optionally at least one valve arranged to selectively pump liquid between the liquid-containing region and the hot liquid reservoir, and between the liquid-containing region and the cold liquid reservoir.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 16, 2004
    Inventor: Ilan Romem
  • Publication number: 20040250986
    Abstract: A heat sink including a base defining a base plane extending in a longitudinal and a transversal direction is disclosed. The base has fins extending along the longitudinal direction and a way from the base plane. The base and the fins are arranged to allow airflow along the longitudinal direction. A front end of the fins facing the airflow has a surface shape enabling a substantially laminar airflow. The substantially laminar airflow is efficient to provide a good heat transfer between the heat sink and the air. The substantially laminar airflow is also relatively silent compared to a turbulent airflow.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 16, 2004
    Inventors: Wing Hon Tsang, Ronald Chiu
  • Publication number: 20040250987
    Abstract: A fastening between a fan shroud and a heat exchanger, the fastening including a plurality of cooperating fastening devices about the outer edge of the shroud and heat exchanger. At least one of the cooperating fastening devices comprises a locking hook on one edge of the shroud, a mount on an edge of the heat exchanger corresponding to the shroud one edge, a stop on the corresponding heat exchanger edge spaced from the mount slot in a direction opposite a first direction, and an elastically flexible extension on the locking hook including a locking tab. The mount defines a slot adapted to receive the locking hook from the first direction. The extension is elastically biased toward an interfering position between the locking tab and the stop when the locking hook is received in the mount slot, and is manually engageable to flex the extension to a releasing position in which the locking tab does not interfere with the stop.
    Type: Application
    Filed: February 23, 2004
    Publication date: December 16, 2004
    Inventor: Klaus Kalbacher
  • Publication number: 20040250988
    Abstract: A heat exchanger block including at least two heat exchangers each consisting of a pair of longitudinal headers with tubes extending between the headers, at least some of which are aluminum cast parts. Adjacent heat exchangers are detachably connected at adjacent ends of their headers wherein one of the adjacent headers includes a recessed portion in the adjacent end and the other of the adjacent headers includes a flange receivable in the recess of the one header. Matching holes extend through the flange and the one header end, and a fastener extends through the matching holes in the ends of at least one set of adjacent headers. Shroud attachments are along a longitudinal wall of at least one of the longitudinal headers.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 16, 2004
    Inventor: Norbert Machanek
  • Publication number: 20040250989
    Abstract: Some embodiments of the invention include two heat exchange members, which are arranged facing each other with a semiconductor module therebetween, the semiconductor module including a plurality of packages; a connection member formed in the middle of each of the heat exchange members to hinge join the heat exchange members such that portions of the heat exchange members protrude above the semiconductor module inserted between the heat exchange members; and an elastic member disposed between the heat exchange members to provide a force pushing portions of the heat exchange members below the connection member toward the packages of the semiconductor module. Other embodiments of the invention are described in the claims.
    Type: Application
    Filed: February 10, 2004
    Publication date: December 16, 2004
    Inventors: Yun-hyeok Im, Joong-hyun Baek, Min-ha Kim
  • Publication number: 20040250990
    Abstract: A cooling element for heat dissipation in one or more electronic components includes a metal element with one or more slit-shaped receiving openings for one or more electronic components that are to be cooled. In its lengthwise extension, each receiving opening has a receiving bore that holds a helical spring and that runs parallel to the lengthwise extension. The receiving bore is arranged in such a way that it is open on the lengthwise side towards the receiving opening and the spring placed in it projects with a radial partial section into the receiving opening that holds the electronic component. As a result, in partial areas, the spring presses the electronic component against the inner wall of the receiving opening that lies opposite from the spring, thus establishing thermal contact.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 16, 2004
    Applicant: Phoenix Contact GmbH & Co. KG
    Inventor: Elmar Schaper
  • Publication number: 20040250991
    Abstract: A heat dissipation structure made of a heat-conductive material, comprising at least one penetration portion which penetrates therethrough. The at least one penetration portion further comprises a solid portion which is located at the center of the at least one penetration portion and provided with a penetration hole penetrating therethrough, and at least one bridge portion which surrounds the solid portion and is connected between the solid portion and the body of the heat dissipation structure.
    Type: Application
    Filed: August 7, 2003
    Publication date: December 16, 2004
    Inventors: Chin-Ming Chen, Yu-Hung Huang, Wei-Fang Wu
  • Publication number: 20040250992
    Abstract: An electronic device capable of efficiently cooling an integrated circuit element provided in such a way as to enable a heat exchange on a cold plate. The electronic device contains a circuit board mounted with an integrated circuit element requiring measures against heat generation in a single case, comprising: a cold plate mounted on the integrated circuit element in such a way as to enable a heat transfer from the integrated circuit element; a heat exchanger for cooling brine heated by the cold plate by circulating the brine; a fan casing forming an air way from a blower fan at an opening on a surface of the case to the heat exchanger; a reserve tank and a pump provided in order in a brine flow from the heat exchanger to the cold plate; and a linear brine passage formed in the cold plate and having at least one pair of back and forth channels.
    Type: Application
    Filed: August 29, 2003
    Publication date: December 16, 2004
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Hitoshi Aoki, Junichi Kubota, Takeo Komatsubara, Junichi Motegi, Hirotaka Kakinuma, Naoki Otsuka, Masaya Matsuoka
  • Publication number: 20040250993
    Abstract: A heat-dissipating device for a heat generating electronic component has a heat-conducting plate having a holding surface, a heat sink defining a clipping holed formed at a bottom thereof and a heat-conducting block received in the clipping hole and disposed on the holding surface so that the heat-dissipating device has a good heat-dissipating efficiency.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 16, 2004
    Inventors: Tang Ji-Hai, Zhang Min
  • Publication number: 20040250994
    Abstract: Methods and apparatuses for cooling a device are disclosed. The device may be an electrical or electronic component that includes an integrated circuit or embedded control. The apparatus employs a fluid that near or above its critical pressure and at least one heat exchanger. At least two configurations are disclosed: one with a pump and another without a pump.
    Type: Application
    Filed: November 5, 2003
    Publication date: December 16, 2004
    Inventor: Lalit Chordia
  • Publication number: 20040250995
    Abstract: In a cooling system for cooling a heating element mounted in a vehicle, a radiator is located at a position higher than a heat sink, which absorbs heat from the heating element. When the amount of heat generated from the heating element, which is detected by a sensor, is greater than a predetermined first value, a blower is operated. Further, when the detected amount of heat is greater than a predetermined second value that is higher than the predetermined first value, a pump is operated. When the detected amount of heat is equal to or less than the predetermined first value, the pump is stopped and the cooling water is circulated by a principle of heat siphon. Accordingly, power consumption of the pump is reduced. Further, power consumption of the cooling system is reduced or an increase in power consumption of the cooling system is restricted.
    Type: Application
    Filed: May 24, 2004
    Publication date: December 16, 2004
    Inventors: Yusuke Morishita, Yoshimitsu Inoue
  • Publication number: 20040250996
    Abstract: An apparatus and method for cooling a planar workpiece, such as a substrate of a recording disk, in an evacuated environment has a heat exchanging structure with at least two heat sinks having substantially parallel facing surfaces disposed within a vacuum chamber. A drive arrangement is connected to the heat sinks to controllably and dynamically drive the parallel facing surfaces of the heat sinks towards and away from each other.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 16, 2004
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Chang Bok Yi, Tatsuru Tanaka, Paul McLeod
  • Publication number: 20040250997
    Abstract: The present invention is directed to a drum type heat exchanger for effectively ventilating and purifying room air of a factory, a building or a house and the like. The present invention provides a drum type heat exchanger in which heat transfer means has a drum shape and thus an entire size is reduced as much as possible and become compact, such that a handling and an installation is easy, a small space is taken for the installation, a thermal efficiency to an installation space of the heat transfer means is maximized, and overall maintenance and repair such as a check or exchange of the heat transfer means are easy in order for the heat transfer means to be recycled and thus a life span of the heat exchanger is extended. Additionally, the present invention provides the drum type heat exchanger which uses the drum with a short radius of rotation so that an entire operation cycle time is shortened and a heat transfer area is sufficiently secured in order to keep the thermal efficiency high.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 16, 2004
    Inventor: Byung-sook You
  • Publication number: 20040250998
    Abstract: The fumes from gas turbine TG are cooled by heat exchangers E1, E2, E01, E02 and E03 and compressed by compressors C1 and C2. The cold and high-pressure fumes are depleted in carbon dioxide in treating plant 10. The carbon dioxide can be injected into an underground reservoir. The fumes depleted in carbon dioxide are heated by heat exchangers E1 and E2, and expanded by turbines T2, then T1. In particular, after expansion in turbine T2 and before expansion in turbine T1, the fumes are heated using the heat of the fumes from compressor C2.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 16, 2004
    Inventor: Yves Charron
  • Publication number: 20040250999
    Abstract: A cooling system for apparatus powered by electricity, that generates a substantial amount of heat during operation, and the heat must be dissipated to avoid failure of electrical and/or electronic components, such as semiconductor devices and integrated circuits, comprising the electrical apparatus. The cooling system employs water impinged on a heat sink thermally coupled with electrical apparatus, at subatmospheric pressure. The attendant phase change of the water to steam at a reduced temperature due to the subatmospheric pressure improves removal of waste heat to prevent failure of the electrical apparatus.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Inventors: Gary W. Kramer, Richard S. Frankel
  • Publication number: 20040251000
    Abstract: A heat-dissipating device and a housing thereof. The heat-dissipating device includes an impeller and a housing. The impeller includes a hub and a plurality of rotor blades disposed around the hub. The housing includes an outer frame, an air-guiding part, and a plurality of stator blades. The air-guiding part is formed on at least one side of the outer frame. The stator blades are disposed in the outer frame corresponding to the air-guiding part. The stator blades guide the airflow through the blades, and greatly increase the static pressure of the airflow discharged from the heat-dissipating device.
    Type: Application
    Filed: December 19, 2003
    Publication date: December 16, 2004
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20040251001
    Abstract: A catalytic reactor (10) comprises a plurality of sheets (12, 13) defining flow channels (14, 18) between them. Within each flow channel (14, 18) is a foil (16, 20) of corrugated material whose surfaces are coated with catalytic material. The flow channels (14, 18) extend in transverse directions, but the foils (20) are shaped to cause the gas in those channels (18) to flow at least partly in countercurrent to the gas flowing in the other channels (14). The reactor (20) incorporates header chambers (22, 24) to supply gas mixtures to the flow channels (14, 18), each header being in the form of a cap attached to the outside of the back and covering a face of the stack. Hence different gas mixtures are supplied to the different channels (14, 18) which may be at different pressures, and the corresponding chemical reactions are also different, and heat is transferred through the sheets (12, 13) separating the adjacent channels.
    Type: Application
    Filed: April 6, 2004
    Publication date: December 16, 2004
    Inventor: Jason Andrew Maude
  • Publication number: 20040251002
    Abstract: The invention relates to a heat transfer unit comprising at least two heat transfer elements, especially for a motor vehicle. Said unit comprises a plurality of tubes and corrugated ribs, two side parts (4) which enclose the monoblock on the opposite sides thereof, whereby at least one side part (4) comprises at least one expansion section (11).
    Type: Application
    Filed: March 12, 2004
    Publication date: December 16, 2004
    Inventors: Frank Reichle, Michael Spieth
  • Publication number: 20040251003
    Abstract: A heat transfer plate is provided for a plate heat exchanger, the plate having a heat transfer area and peripheral openings for the heat transfer media, namely a product to be at least partially evaporated or condensed on the one hand and a heating or cooling medium on the other hand. A first group of the openings is allocated to one medium and to one side of the plate, and a second group of the openings is allocated to the other medium and the other side of the plate by appropriately placed seals. The group of openings allocated to the product to be evaporated comprises a plurality of adjacent inlet openings on the inlet side of the plate, the inlet openings ending directly in the heat transfer area of the plate at approximately a right angle to the adjacent plate edge.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 16, 2004
    Applicant: API Schmidt-Bretten GmbH & Co. KG
    Inventors: Markus Nickolay, Volker Wagner
  • Publication number: 20040251004
    Abstract: A heat exchanger comprising at least one row of flattened tubes through which a heat exchange medium may pass. A serpentine fin 10 disposed between adjacent flattened tubes has relatively straight segments that are connected by bend radii 20. The fin 50 defines a plurality of louvers 32 therein. Each louver 32 forms an elongated slit that extends at least partially into the bend radii 20, through which a fluid to be heated or cooled by the medium may pass. The fin 50 is formed by a tool with fin blades that have tips that are configured to form the extended length louver that protracts into the bend radius that separates adjacent convolutions.
    Type: Application
    Filed: January 2, 2003
    Publication date: December 16, 2004
    Applicant: Livernois Engineering Company
    Inventor: Richard P. Stoynoff
  • Publication number: 20040251005
    Abstract: To protect a plate-type heat exchanger (1) against corrosion due to the attack of sulfuric acid, it is proposed in accordance with the invention that the region through which flows sulfuric acid has at least one metal cathode (16, 17) and one reference electrode (27), that at least half the metal plates (7) have an electric contact (23) which is connected with the anode (21) of an electric d.c. voltage source of variable electric voltage, that the metal cathode (16, 17) likewise is electrically connected with the d.c. voltage source, and that the d.c. voltage source belongs to a potentiostat (20) which is electrically connected with the reference electrode (27).
    Type: Application
    Filed: July 1, 2004
    Publication date: December 16, 2004
    Inventors: Nikola Anastasijevic, Karl-Heinz Daum, Wolfram Schalk, Stefan Laibach
  • Publication number: 20040251006
    Abstract: A heat exchanger system for cooling a fiber includes an outer tube section, an inner tube section disposed within and separated a selected distance from the outer tube section to form an annular gap therebetween, and a plurality of fins extending transversely from internal peripheral wall portions of the inner tube section toward a central axis of the inner tube section. The inner tube section includes an internal passage configured to receive and cool the fiber as the fiber moves through the heat exchanger, and the fins facilitate heat transfer between a cooling medium flowing through the annular gap and a coolant fluid flowing within the inner tube section during system operation.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 16, 2004
    Inventors: Ovidiu Marin, Frederick W. Giacobbe, M. Usman Ghani
  • Publication number: 20040251007
    Abstract: A pressure tank includes a liner separated into a cap and a main body. A shell covers the outer surface of the liner. The shell is formed of a fiber reinforced plastic. A heat exchanger is arranged in the liner. A header is connected to the heat exchanger. The heat exchanger is supported on the liner by fastening the header to the cap or the main body.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 16, 2004
    Inventors: Keiji Toh, Hidehito Kubo, Katsuyoshi Fujita, Akiko Kumano, Masahiko Kimbara, Yoshihiro Isogai, Daigoro Mori
  • Publication number: 20040251008
    Abstract: A heat exchanger has a boiling passage and a cooling passage defined by opposite sides of metal walls. Layers of brazing material between the metal walls and a spacer member bond components of the heat exchanger together. An enhanced boiling layer (EBL) having metal particles bonded to each other and to a boiling side of the metal wall provides nucleate boiling pores to improve heat transfer. The EBL has a melting temperature that is higher than the melting temperature of the brazing material.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 16, 2004
    Inventors: Patrick S. O'Neill, Dennis P. Held, Thomas J. Godry
  • Publication number: 20040251009
    Abstract: A panel (10) for a suspended heating and/or cooling ceiling comprises a flat metal cassette having mutually spaced upper and lower metal sheets (11, 12) defining a sealed space (17) therebetween. The metal sheets are perforated by registering apertures (13, 14) which are sealed against the space along the circumference thereof. At least one of the metal sheets around each aperture forms an embossment (15) attached to the other metal sheet as a spacer between the metal sheets. An inlet (19) and an outlet (20) communicate with the space for circulating a fluid heat carrier through the space in heat exchanging relationship with the panel.
    Type: Application
    Filed: June 30, 2004
    Publication date: December 16, 2004
    Inventors: Heimer Andersson, Anders Rydin, Jan Kirstensson, Torbjorn Persson, Jan Lovstrom, Anna Jonason
  • Publication number: 20040251010
    Abstract: An exchange apparatus comprised of hollow thermoplastic tubes infusion bonded into a thermoplastic material is disclosed. In a preferred embodiment the hollow tubes are shaped by plaiting the tubes into cords and then thermally annealing the cords to set the crests and bends of the plait. The cords provide improved flow distribution of fluid about the hollow tube tubes in the exchange apparatus. The exchange apparatus is chemically inert and is useful for cross flow filtration, as well as heat and mass transfer in harsh chemical environments.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 16, 2004
    Inventors: Cha P Doh, Kwok-Shun Cheng, Alicia Briggs LaForge
  • Publication number: 20040251011
    Abstract: As a heat storage unit wherein, the volume variation of a heat storage material can be absorbed without an accompanying decrease in heat capacity, decrease in heat transfer coefficient, and oxidation and deterioration of the heat storage material due to oxygen in the air, so that the heat storage capacity can be adequately maintained and high performance can be attained, and moreover, the number of parts and the cost can be reduced, there is provided on the outside of a main member having; a fluid passage formation section which forms a fluid passage for circulating a fluid introduced from an inlet, on the inside of an outer wall section, and a heat storage material filling space formation section which forms a heat storage material filling space for filling with a heat storage material for which the volume varies corresponding to the heat storage condition, adjacent to the fluid passage, a passage switching section which selectively switches a flow-in destination of a fluid introduced from the inlet by the p
    Type: Application
    Filed: March 11, 2004
    Publication date: December 16, 2004
    Inventor: Tomohide Kudo
  • Publication number: 20040251012
    Abstract: An exhaust gas heat exchanger and bypass has an intake manifold, an outlet manifold, a duct for a heat exchanger, and a bypass duct. The heat exchanger duct and the bypass duct run in parallel between the intake manifold and the outlet manifold and are sealingly connected to the outlet manifold. The heat exchanger is arranged in the interior of the heat exchange duct such that the intake side of the heat exchanger is sealingly connected to the heat exchanger duct and the outlet side of the heat exchanger is slideably received in the heat exchanger duct to allow thermal expansion of the heat exchanger relative to the heat exchanger duct.
    Type: Application
    Filed: January 30, 2004
    Publication date: December 16, 2004
    Inventors: Phillip David Bush, Richard Thevenon
  • Publication number: 20040251013
    Abstract: A heat exchange tube having a flat shape includes a plurality of fluid paths having a perfect circular cross section and extending in a longitudinal direction of the tube. Each fluid path is parallel together. The tube has a certain dimensions in such a manner that a distance between two adjacent fluid paths is defined as Wt, and a circumferential thickness between a surface of the tube and an outmost fluid path is defined as Ht. The distance Wt and the circumferential thickness Ht have a relationship as 0.42≦Ht/Wt≦0.98.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 16, 2004
    Inventors: Masaaki Kawakubo, Etsuo Hasegawa, Yoshiki Katoh, Ken Muto
  • Publication number: 20040251014
    Abstract: A heat exchanger comprising a pair of manifolds and a plurality of flat tubes for heat exchange between a first fluidum flowing inside the tubes and a second fluidum flowing outside of the tubes. The manifolds receive ends of the tubes and have an inlet and an outlet for introducing the first fluidum into the flat tubes and for discharging therefrom. Each manifold comprises at least two adjacent parallel channels with a partition wall therebetween. Each channel is further defined by at least a second wall, with at least part of the second wall having a curved surface. The partition wall defines two parallel substantially flat surfaces facing the channels. Each channel has a perimeter in cross-section defined by a continuous line consisting of curved and straight portions.
    Type: Application
    Filed: June 21, 2004
    Publication date: December 16, 2004
    Inventor: Leif Petersen
  • Publication number: 20040251015
    Abstract: There is disclosed a heat exchanger for transferring heat between at least two fluids and a method for forming the heat exchanger. The heat exchanger preferably includes one or more end tanks, one or more inlets and outlets, one or more tubes, one or more fins, one or more bypasses, one or more improved baffles combinations thereof or the like.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 16, 2004
    Inventor: Pascal Bonnet
  • Publication number: 20040251016
    Abstract: Disclosed is a heat exchanger including a plurality of tubes through which refrigerants flow, the tubes being spaced away from each other, and a plurality of fins through which the tubes are perpendicularly inserted, the fins being spaced away from each other at a predetermined distance, each of the fin having more than four peak portions and more than four valley portions that are alternately disposed. Heights or depths of at least two peak portions or at least two valley portions being different from each other.
    Type: Application
    Filed: January 13, 2004
    Publication date: December 16, 2004
    Inventors: Sai Kee Oh, Cheol Soo Ko, Dong Yeon Jang, Yong Cheol Sa, Se Yoon Oh, Baik Young Chung
  • Publication number: 20040251017
    Abstract: This invention relates to an apparatus for conditioning the temperature of a fluid by utilizing a thermoplastic heat exchange apparatus comprised of a plurality of hollow tubes. The apparatus controls the temperature of a process fluid inside the heat exchanger by adjustment of a control valve that regulates the flow of an exchange fluid. The apparatus can be used to maintain the temperature of chemical baths and also to prepare discreet dispensed volumes of temperature controlled liquid. The device is chemically inert and has the ability to operate at elevated temperatures and also with corrosive and oxidizing liquids.
    Type: Application
    Filed: March 11, 2004
    Publication date: December 16, 2004
    Inventors: John E. Pillion, Jieh-Hwa Shyu, Alicia Briggs LaForge, Robert McLoughlin
  • Publication number: 20040251018
    Abstract: A frac head comprising a main body with plural side entries oriented around the main body such that flow from each of the side entries meets flow from an opposing side entry in the internal bore. A replaceable abrasion resistant wear sleeve is secured in the internal bore of the main body downstream of the side entries and positioned to intercept flow from the side entries and prevent the flow from impacting directly on material of the main body. The side entries terminate at the internal bore equidistantly from the lower end of the main body, and are symmetrically arranged around the main body. The side entries are oriented at about 450 to the downstream direction. The replaceable abrasion resistant wear sleeve is held against movement downstream by abutment of a shoulder on the replaceable abrasion resistant wear sleeve against a shoulder on the frac body, and has a tapered internal bore.
    Type: Application
    Filed: June 16, 2003
    Publication date: December 16, 2004
    Inventors: Roderick D. McLeod, Jerry A. Johnson
  • Publication number: 20040251019
    Abstract: Disclosed is an electric submersible pumping system for use in wellbore. The electric submersible pumping system includes a motor assembly, a pump assembly and a seal section disposed in the wellbore. The pump assembly is below the motor and is driven by the motor. The seal section is between the motor assembly and the pump assembly, and protects the motor assembly from thrust generated in the pump assembly. The seal section includes a shaft that transmits torque from the motor assembly to the pump assembly. A labyrinth chamber in the seal section restricts the flow of wellbore fluids. The seal section can also include a mechanical seal, a thrust bearing, a bag type chamber, an abrasion resistant bearing, and a motor electrical termination.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 16, 2004
    Applicant: Wood Group ESP, Inc.
    Inventor: Alan Howell
  • Publication number: 20040251020
    Abstract: An adjustable well screen assembly having a sand screen which is wrapped around a perforated base pipe and a perforated sleeve which is movably disposed concentrically inside the base pipe between a first, closed, and a second, open, position. In the first position of the sleeve the perforations of the sleeve and base pipe are unaligned and hydraulically isolated from each other and flow of fluids from the outer diameter of the screen into the interior of the sleeve is inhibited. In the second position the perforations of the sleeve and the base pipe are aligned and connected in fluid communication with each other and fluids are permitted to flow from the formation through the sand screen and the perforations of the sleeve and base pipe into the interior of the sleeve.
    Type: Application
    Filed: August 16, 2004
    Publication date: December 16, 2004
    Inventor: David Randolph Smith
  • Publication number: 20040251021
    Abstract: The effects of storage on the interpretation of data obtained at observation probes of a borehole tool are eliminated by controlling the storage volumes relative to the observation probes. For a homogeneous medium, the effect of storage on the interpretation of data is eliminated by causing the flow line volumes connected to each observation probe to be equal to each other. For a heterogeneous medium, the effect of storage on the interpretation of data is eliminated by causing the flow line volumes to vary in proportion to the relative permeabilities of the strata of the heterogeneous medium adjacent the probes. The borehole tool is provided with mechanisms for conducting flow line volume adjustment.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION, Incorporated in the State of Texas
    Inventors: Terizhandur S. Ramakrishnan, Syed Tariq, Thomas H. Zimmerman
  • Publication number: 20040251022
    Abstract: A method and apparatus is used to test and/or treat individual production zones of a well in conjunction with a conventional coiled tubing unit. This method and apparatus allows testing and treatment of a well with production tubing in place. The return flowpath for formation fluids and/or treatment fluids is through the annulus between the coiled tubing and the production tubing. The preferred embodiment uses straddle packers, but alternative embodiments may use only a single inflatable packer.
    Type: Application
    Filed: May 5, 2004
    Publication date: December 16, 2004
    Inventor: Peter V. Smith
  • Publication number: 20040251023
    Abstract: The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilize the fluid pathway of the cement. In one aspect of the invention, an inner member is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 16, 2004
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Clayton Stanley Pluchek, Gerald Dean Pedersen, Richard Lee Giroux, Thad Joseph Scott, David Michael Haugen
  • Publication number: 20040251024
    Abstract: A method for performing single trip perforation and packing operations via a downhole assembly in a cased well bore is described. The assembly is provided with an upper packer and a lower packer and has fluid communication established therethrough. The upper packer of the assembly is set to isolate a perforated production zone by introducing pressurized fluid through the assembly and against the casing below the lower packer of the assembly.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventor: Ralph Harold Jones
  • Publication number: 20040251025
    Abstract: The present invention generally relates to apparatus and methods for completing a well. Particularly, the present invention relates to a single-direction plug for use with cementing applications and with drilling with casing applications. One embodiment comprises a cement plug for installation in a wellbore casing. The plug includes a body and gripping members for preventing movement of the body in a first axial direction relative to the casing. The plug further comprises a sealing member for sealing a fluid path between the body and the casing. The plug is movable in a second axial direction with fluid pressure but is not movable in the first direction due to fluid pressure.
    Type: Application
    Filed: January 29, 2004
    Publication date: December 16, 2004
    Inventors: Richard L. Giroux, David J. Brunnert, Gregory Guy Galloway, John C. Jordan
  • Publication number: 20040251026
    Abstract: The present invention provides cementing compositions for oil wells or the like comprising an hydraulic binder and reinforcing particles constituted by a flexible material of low compressibility, and with an average grain size of less than 500 &mgr;m.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventors: Bernard Dargaud, Sylvaine Le Roy-Delage, Marc Thiercelin
  • Publication number: 20040251027
    Abstract: Methods and devices for sensing operating conditions associated with downhole, non-drilling operations, including, fishing and retrieval operations as well as underreaming or casing cutting operations and the like. A condition sensing device is used to measure downhole operating parameters, including, for example, torque, tension, compression, direction of rotation and rate of rotation. The operating parameter information is then used to perform the downhole operation more effectively.
    Type: Application
    Filed: February 11, 2004
    Publication date: December 16, 2004
    Applicant: Baker Hughes Incorporated
    Inventors: James A. Sonnier, Robbie B. Colbert, James W. Anderson, Gerald Heisig, Blake C. Pizzolato, Johnny C. Hicks
  • Publication number: 20040251028
    Abstract: A sealed perforating gun assembly for use with automatic pipe handling equipment on oil and gas drill rigs. An upper sealed connector and a lower sealed connector have sealed threaded connections for mating with ends of a perforating gun. The connectors have external dimensions equivalent to the external dimensions of standard drill pipe and have standard tapered thread couplings. Ignition transfer explosives are carried within cavities in the connectors. The cavities are sealed on their drill pipe coupling ends. The ignition transfer explosives are adapted to penetrate the seals so that ignition can be transferred between the gun assembly and adjacent sections of the gun string. Since the external dimensions of the sealed connectors correspond to the external dimensions of drill pipe, automatic drill pipe handling equipment can handle the gun assemblies.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 16, 2004
    Inventor: Lars B. Nardaas