With Electric Heating Element Patents (Class 137/341)
  • Publication number: 20040144946
    Abstract: A control element for media, for instance, a pneumatic valve or a hydraulic valve, comprising a valve body in which one or several channels are arranged, at least one moving element arranged in a channel and means for carrying out a relative movement of and/or deforming the moving element. The means are directly arranged on and/or directly act upon the moving element.
    Type: Application
    Filed: December 3, 2003
    Publication date: July 29, 2004
    Inventor: Walter Sticht
  • Patent number: 6748969
    Abstract: To constitute a poppet valve with a heater by providing a heater which heats a valve member at a fixed position inside valve casing without attaching the heater to the valve member, a rod or the like which is a movable member as necessary. In a valve casing 1 having main ports 11, 12, a flow path 13 which connects these main ports 11, 12, a valve seat 14 which is provided inside the flow path 13, a valve member 17 which opens/closes the valve seat 14, and a rod 18 which is coupled to the valve member 17, a cylindrical heat transfer body 28 is disposed at a fixed position therein so as to surround the rod 18, and the heat transfer body 28 is caused to house a first heater 31 therein, so that a poppet valve is constituted such that the valve member 17 comes in contact with the heat transfer body 28 at a time of opening of the valve member 17.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: June 15, 2004
    Assignee: SMC Corporation
    Inventors: Ikuo Kanzaka, Toyonobu Sakurai
  • Publication number: 20040089344
    Abstract: A cylindrical heat-generating member is disposed in a valve casing including a valve seat in a flow path connecting main ports, a valve member for opening and closing the valve seat, and a rod connecting the valve member and a piston. A first heater is mounted in the heat-generating member. The heat-generating member and a heat receiving member of the valve member are connected to each other by a heat-transfer member for expansion and contraction. As a result, the valve member is constantly heated through the heat-transfer member irrespective of its open/closed position. When the valve member is open, the heat receiving member comes in contact with the heat-generating member and the valve member is directly heated.
    Type: Application
    Filed: September 9, 2003
    Publication date: May 13, 2004
    Applicant: SMC Corporation
    Inventors: Ikuo Kanzaka, Mamoru Fukuda
  • Patent number: 6715507
    Abstract: A vaporizer comprises disks each including an aperture at a central portion thereof. A hollow pipe having apertures for permitting radial outflow of a liquid extends through the aperture of each of the discs so as to form a stack of the discs. A resilient member applies a biasing force to the discs, and structure applies a force, via fluid control, against the biasing force to thereby remove the biasing force from the discs. Liquid in the hollow pipe is adapted to be delivered from the apertures to spaces between the discs and vaporized in the spaces between the discs.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: April 6, 2004
    Assignee: MKS Japan, Inc.
    Inventors: Mayumi Arai, Yoshiyuki Yamazaki
  • Patent number: 6712088
    Abstract: A counter-flow prevention valve is disposed within a body of a pilot-type channel valve. While electrical power is applied to a solenoid coil and the pilot-type channel valve is opened, i.e., while a gas is flowing through the counter-flow prevention valve and the gas is expanding, heat generated by the application of electrical power to the solenoid coil is conducted via the body and is effectively transferred to the counter-flow prevention valve. Therefore, even if the gas contains water vapor and even if this gas is cooled due to significant expansion, the water vapor can be prevented from freezing within the counter-flow prevention valve. Moreover, the volume of the pipe between the pilot-type channel valve and the counter-flow prevention valve is small, thereby resulting in a fast rise in pressure within the pipe and a quick opening of the counter-flow prevention valve, which provides an excellent valve-opening response.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: March 30, 2004
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Masaru Gamou, Syoichi Hagiwara, Takeshi Yamamoto
  • Publication number: 20040055642
    Abstract: The cryogenic rotary coupling comprises segments of a cryogenic line that are capable of turning relative to each other about a pivot axis of the rotary coupling. Radial retaining elements and axial retaining elements define the pivot axis of the rotary coupling. One of the segments comprises a vacuum-insulated double-walled female portion and the other segment comprises a vacuum-insulated double-walled male portion engaged at least in part in the female portion. A first sealing gasket is interposed between a free end of the male portion engaged in the female portion and one of the retaining means. A second sealing gasket is interposed between a free end of the female portion surrounding the male portion and the other one of the retaining elements. A heater device is disposed in the vicinity of the second gasket.
    Type: Application
    Filed: July 11, 2003
    Publication date: March 25, 2004
    Inventor: Dominique Valentian
  • Patent number: 6708721
    Abstract: A heater and a temperature sensor are mounted to a valve member driven for opening and closing through a piston and a rod, primary conductors extending from the heater and the temperature sensor are connected to a terminal block mounted to the piston, a secondary conductor having a spiral portion for expansion and contraction is connected between the terminal block and a connector mounted to a lid body, and displacements of the primary conductors due to opening and closing of the valve member are absorbed by expansion and contraction of the spiral portion.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: March 23, 2004
    Assignee: SMC Corporation
    Inventors: Mamoru Fukuda, Toyonobu Sakurai
  • Publication number: 20040011404
    Abstract: Embodiments of the present invention relate to a method and apparatus for rapid delivery of pulses of one or more reactants to a substrate processing chamber. One embodiment of a valve body includes a first inlet, a second inlet, and an outlet. A valve chamber is in fluid communication with the first inlet, the second inlet, and the outlet. A valve seat is formed at least around the first inlet. The valve chamber further includes an annular groove formed around the valve seat coupling the second inlet and the outlet. One embodiment of a pneumatic valve assembly includes a valve body having at least two ports. A valve seat surrounds one of the ports. The pneumatic valve assembly further includes a diaphragm assembly having a diaphragm movable to open and close the one port. A piston housed in a cylinder is coupled to the diaphragm to actuate the diaphragm. An actuation chamber is formed between the cylinder and the piston. In certain embodiments, the internal volume of the actuation chamber is about 3.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 22, 2004
    Inventors: Vincent W. Ku, Ling Chen, Dien-Yeh Wu
  • Patent number: 6668854
    Abstract: To allow the whole outer peripheral face of a casing of a poppet valve to be heated efficiently using an inexpensive rod-like heater. A heat transfer cover 30 formed of heat transfer material is provided in a covering manner on an outer peripheral face of a valve casing 10 comprising main ports 11, 12, a flow path 14 connecting these main ports 11, 12, an annular valve seat 15 provided in the flow path 14, a valve member 13 of a poppet type opening/closing the valve seat 15 and a rod 16 coupled to the valve member 13 so as to surround the whole periphery of the valve casing 10, and a rod-like first heater 32 is attached in a heater hole 31 provided in the heat transfer cover 30.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: December 30, 2003
    Assignee: SMC Corporation
    Inventor: Mamoru Fukuda
  • Patent number: 6648008
    Abstract: A portable wash water containment apparatus having a flat ground cover portion surrounded by an integral berm formed from the ground cover material, said berm defines the area of the apparatus in which contaminated are contained. Dual ramp assemblies are provided to allow ingress and egress from the containment mat without damaging the berm or ground cover portions. A pump system is included to provide oil/water separation before discharging waste water into a sewer system. The containment mat may also be equipped with electrical heating elements to facilitate use in extreme cold temperatures.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: November 18, 2003
    Inventor: Kerrigan McGrew Price
  • Publication number: 20030178064
    Abstract: A heater and a temperature sensor are mounted to a valve member driven for opening and closing through a piston and a rod, primary conductors extending from the heater and the temperature sensor are connected to a terminal block mounted to the piston, a secondary conductor having a spiral portion for expansion and contraction is connected between the terminal block and a connector mounted to a lid body, and displacements of the primary conductors due to opening and closing of the valve member are absorbed by expansion and contraction of the spiral portion.
    Type: Application
    Filed: January 13, 2003
    Publication date: September 25, 2003
    Applicant: SMC Corporation
    Inventors: Mamoru Fukuda, Toyonobu Sakurai
  • Patent number: 6622746
    Abstract: A microfluidic system is provided for controlling delivery and mixing of thermally-responsive fluids. A plurality of microfluidic inlet channels open into a mixing chamber. A valve is associated with each of the inlet channels for controlling the flow of the thermally-responsive fluids through the inlet channels. The valves include a heater in thermal contact with at least a portion of the associated inlet channel, whereby the viscosity of the thermally-responsive fluids can selectively be controlled by heat to cause a change in flow of the thermally-responsive fluids through the inlet channels. A plurality of microfluidic outlet channels may be provided for transporting mixed fluids from the mixing chamber. A valve associated with each of the outlet channels controls the flow of the mixed thermally-responsive fluids through the outlet channels.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: September 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Zhihao Yang, Gilbert A. Hawkins
  • Patent number: 6616066
    Abstract: An injection valve for internal combustion engines has a filter element arranged on the inside of the injection valve in the fuel flow of the latter with ducts for the fuel. The filter element is designed as a throughflow heating element, for which purposes the walls of the throughflow ducts are capable of being heated, at least in certain regions, along their longitudinal extent.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: September 9, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Herbert Guettler, Eberhard Holder, Gerhard Kroetz, Martin Matt, Viktor Pfeffer
  • Patent number: 6617556
    Abstract: A novel system for inductively heating a fluid conduit using an electrical cable located proximate the fluid conduit. Electricity is conducted to the cable in either a powering mode, in which a powered system is electrically coupled to the cable and substantially no inductive heating of the fluid conduit is provided, or a heating mode, in which the powered system is electrically decoupled from the cable and inductive heating of the fluid conduit is provided.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: September 9, 2003
    Assignee: ConocoPhillips Company
    Inventor: Michael W. Wedel
  • Patent number: 6609540
    Abstract: A supplying method and a supplying apparatus for supplying fluorine gas, in which when a fluorine-occluding substance is used for the fluorine gas-generating means, a necessary amount of fluorine gas can be stably and swiftly supplied to have a uniform concentration to &a chamber of an excimer laser device or the like even at running, to say nothing of the gas exchange time. In a fluorine gas-generating means, fluorine gas is generated at the use point by controlling a fluorine-occluding substance to a predetermined temperature, the fluorine gas is introduced into a mixing container, a diluting gas is introduced into the mixing container to mix it with the fluorine gas to prepare a fluorine mixed gas having a predetermined pressure and a predetermined fluorine gas concentration, and the fluorine mixed gas reserved in the mixing container is supplied to a use side such as chamber, using the pressure difference.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 26, 2003
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Junichi Torisu, Mituyoshi Yamazaki, Yasuyuki Hoshino, Yuji Sakai, Shunzou Nakagawa
  • Patent number: 6601606
    Abstract: A gas chromatograph with multiple valves is disclosed. An embodiment of the multi-valve gas chromatograph includes multiple valves, multiple thermal conductivity detectors (TCD's), and a manifold. This allows separation and measurement of a gas sample in one compact integrated unit. The unit is particularly desirable because the solenoids associated with the valves are attached directly to the underneath of the manifold, thus eliminating the need for tubing between the solenoids and the valves. Other features may also be present. For example, a leak free multi-valve block may include a first temperature zone heating the valves and detectors and a second temperature zone heating the columns. The leak free feature may be achieved by placement of tightening screws through the center of each valve. Carrier gas insertion areas may be provided in the multi-valve block to improve performance.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: August 5, 2003
    Assignee: Daniel Industries, Inc.
    Inventors: Yang Xu, Teresa Lechner-Fish
  • Patent number: 6595489
    Abstract: A valve that includes a piston (2) linked with a valve body (8) and received in a housing (4), and a packed seal (14) interposed between the piston (2) and the housing (4). Packed seals of valves used for media having high melting points and operating at temperatures close to the melting points risk damage from so-called freezing medium due to the adhesive properties of the medium at temperatures below the melting point. The structure of the valve of the invention is improved by simple measures such that the material of the packed seal reliably operates in the temperature range at which the medium is liquid. The housing (4) is provided with a heating device (16) in the area of the packed seal (14). The axial length of the heating device (16) is longer than that of the packed seal (14) so that the heating device protrudes axially beyond an axial end (22) of the packed seal (16) by a predetermined length (24, 28).
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 22, 2003
    Assignee: Xomox International GmbH & Co.
    Inventor: Wolfgang Gonsior
  • Patent number: 6595432
    Abstract: A heating system for heating the interior of a motor vehicle including a liquid circuit for dissipating engine heat and delivering heat to the vehicle interior, a valve block for controlling the liquid flow in the liquid circuit, and an electric heating device integrated into the valve block to heat the liquid flowing through the valve block.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: July 22, 2003
    Assignee: Webasto Thermosysteme International GmbH
    Inventors: Martin Stemmler, Ingrid Lanzl
  • Patent number: 6588253
    Abstract: A method and apparatus for determining a volatility of a fuel sample. A fuel sample is collected in a container and heated for a time period using a heater device. Periodically during the heating, the capacitance of the fuel sample and the temperature of the heater device are determined. After a time period passes, the volatility of the fuel sample is determined using the capacitance decrease and the temperature increase. Specifically, a voltage across the heater device is used, along with the current through the heater device to determine the resistance of the heater device, which gives the temperature of the heater device and the sample. The capacitance and temperature are compared to values derived from experimentation for fuels of varying DI. The first measurement of capacitance with a known sample volume can be used to determine the MTBE or ethanol content in gasoline fuels.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: David K. Lambert, Charles Robert Harrington, Han-Sheng Lee, Da Yu Wang
  • Publication number: 20030116193
    Abstract: To allow the whole outer peripheral face of a casing of a poppet valve to be heated efficiently using an inexpensive rod-like heater. A heat transfer cover 30 formed of heat transfer material is provided in a covering manner on an outer peripheral face of a valve casing 10 comprising main ports 11, 12, a flow path 14 connecting these main ports 11, 12, an annular valve seat 15 provided in the flow path 14, a valve member 13 of a poppet type opening/closing the valve seat 15 and a rod 16 coupled to the valve member 13 so as to surround the whole periphery of the valve casing 10, and a rod-like first heater 32 is attached in a heater hole 31 provided in the heat transfer cover 30.
    Type: Application
    Filed: October 23, 2002
    Publication date: June 26, 2003
    Applicant: SMC Corporation
    Inventor: Mamoru Fukuda
  • Patent number: 6581625
    Abstract: The liquid supply system comprises a pump for delivering a liquid under high pressure and a vaporizer for vaporizing the liquid delivered from the pump. The liquid vaporized in the vaporizer is supplied to a reaction chamber. A pressure gage is provided in a passage extending from the pump to the vaporizer. A monitor device is provided so as to indicate a pressure, based on an output of the pressure gage.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: June 24, 2003
    Assignee: MKS Japan, Inc.
    Inventors: Mayumi Arai, Yoshiyuki Yamazaki
  • Patent number: 6565066
    Abstract: A gate valve includes: a valve plate; a valve rod which the valve plate is fixed to and is supported to be able to tilt; a seal bellows and a dust sealing portion; a stopper member; a tilting cam mechanism which converts supplied straight moving force into tilting force, and tilts the valve rod of which the straight movement is restricted at a closed position in the direction where the valve plate 2 seals an aperture; a seal-releasing cam mechanism which tilts the valve rod in the direction to release the sealing of the valve plate; and an air cylinder as an actuator which supplies the straight movement force for the tilting cam mechanism and the seal-releasing cam mechanism.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: May 20, 2003
    Assignees: Eagle Industry Co., Ltd., NOK Corporation
    Inventors: Yoshio Osawa, Koichi Mori, Yuzuru Tamura
  • Patent number: 6561479
    Abstract: An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is movable when in a flowable state between a first position and a second position. A heater is positioned proximate to the actuator channel to heat the actuator from a solid state to a flowable state. A source of gas or other propellant is positioned proximate to the actuator channel to drive the actuator from the first position to the second position. The actuator has a higher surface tension when engaged with the second region of the channel than when engaged with the first region. Accordingly, the actuator can halt upon reaching the second region of the channel due to the increased surface tension between the actuator and the second region of the channel.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: May 13, 2003
    Assignee: Micron Technology, Inc.
    Inventor: Jerome M. Eldridge
  • Publication number: 20030079787
    Abstract: A fluid conduit has a peripheral wall defining a fluid passage extending along a longitudinal access. A heating element is located in contact with the peripheral wall and extending parallel to the longitudinal access. A jacket entrained about the peripheral wall and heating element maintains the heating element in contact with the peripheral wall.
    Type: Application
    Filed: October 17, 2002
    Publication date: May 1, 2003
    Inventor: Lorne R. Heise
  • Patent number: 6554020
    Abstract: A pair of tape heaters 11 are arranged respectively on opposite sides of at least one line and held to the corresponding coupling members by a plurality of clips 12. Each of the clips 12 comprises a pair of side walls 13 opposed to each other as spaced apart by a predetermined distance, and a connecting wall 14 interconnecting the pair of side walls 13 at an intermediate portion of the height thereof so as to move lower portions of the side walls 13 away from each other when upper portions of the side walls 13 are subjected to a force acting to move the upper portions toward each other and to restore the side walls 13 to the original state when the force is removed.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: April 29, 2003
    Assignee: Fujikin Incorporated
    Inventors: Michio Yamaji, Tsutomu Shinohara, Ichiro Mine, Izuru Shikata, Kenji Tsubota
  • Patent number: 6536458
    Abstract: The aim of the invention is to prevent outer taps from being damaged by the effects of frost. To this end, the invention provides a heating device for heating a tap (1) with an electrothermal converter (2) means. Said heating device is mounted in or on the tap. The invention also relates to a valve device in which a heating means can be plugged into a corresponding socket (11), thereby effectively preventing the tap from freezing.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: March 25, 2003
    Inventor: Peter Kindermann
  • Patent number: 6532985
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: March 18, 2003
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Publication number: 20030005959
    Abstract: A pair of tape heaters 11 are arranged respectively on opposite sides of at least one line and held to the corresponding coupling members by a plurality of clips 12. Each of the clips 12 comprises a pair of side walls 13 opposed to each other as spaced apart by a predetermined distance, and a connecting wall 14 interconnecting the pair of side walls 13 at an intermediate portion of the height thereof so as to move lower portions of the side walls 13 away from each other when upper portions of the side walls 13 are subjected to a force acting to move the upper portions toward each other and to restore the side walls 13 to the original state when the force is removed.
    Type: Application
    Filed: June 24, 2002
    Publication date: January 9, 2003
    Applicant: FUJIKIN INCORPORATED
    Inventors: Michio Yamaji, Tsutomu Shinohara, Ichiro Mine, Izuru Shikata, Kenji Tsubota
  • Patent number: 6485228
    Abstract: A method for recovering a liquid substance such as fuel oil from ships sunk or stranded due to marine accidents and from storage facilities by more easily heating the liquid substance to reduce its viscosity, and a device for recovering liquid substance. A working coil (2) is applied to the inner bottom plate (7) of a conductive tank (6) in contact with the liquid substance to be recovered, a high-frequency current is supplied to the working coil (2) from a high-frequency inverter unit (3) to heat the inner bottom plate (7) itself by induction heating and the liquid substance is reduced in viscosity by the heating for recovery via a recovery pipe (5) connected to a pump (4).
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 26, 2002
    Assignee: The Nippon Salvage Co., Ltd.
    Inventor: Masahiro Komatsu
  • Patent number: 6478043
    Abstract: An opening/closing valve comprises a valve body having a first port and a second port for allowing a pressure fluid to flow therethrough, a valve disk for opening/closing a communicating passage between the first port and the second port in accordance with a displacement action of a piston rod, first to third heaters provided on an outer wall surface of the valve body, for heating the valve body, and thermistors for controlling the heating temperatures of the first to third heaters.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: November 12, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventor: Tsuneo Ishigaki
  • Publication number: 20020134438
    Abstract: Viewing device adaptable to a pipe in which a fluid containing solid particles circulates, allowing to examine a volume of this fluid isolated from the fluid stream without changing its thermodynamic state in relation to that of the circulating fluid.
    Type: Application
    Filed: June 13, 2001
    Publication date: September 26, 2002
    Inventors: Regis Vilagines, Philippe Maurel, Yvon Lagrange
  • Patent number: 6433308
    Abstract: A high vacuum valve prevents the transfer of heat from a valve plug of a valve via a valve shaft to a low temperature portion. The high vacuum valve is constructed such that the valve plug arrives at a position opposed to a valve seat in accordance with rectilinear motion of the valve shaft and then the valve plug is pressed against the valve seat in accordance with swinging motion of the valve shaft to close the valve.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: August 13, 2002
    Assignee: SMC Kabushiki Kaisha
    Inventors: Tsuneo Ishigaki, Keiichi Shibuya, Mamoru Fukuda, Kenji Waragai
  • Patent number: 6415812
    Abstract: The invention relates to a control equipment for keeping light oil vapor at stable pressure and constant temperature, it mainly supply a device for keeping temperature constant and pressure stable so as to stay the light oil in a steel bottle at a fixed saturated vapor pressure and not to let the saturated vapor pressure of the light oil be influenced by an outside temperature of background; it's structure comprises: a pressure stabilizing device, which can adjust the saturated vapor pressure of the oil vapor in a light oil tank, is utilized to control air pumping by a pressure switch and a resistor air motor, wherein a check valve therein prevents air from flowing back, a hollow pressure stabilizing tube at it's upper side is utilized to buffer air and then carry it into the light oil so as to reach the purpose of pressure stabilization; a constant temperature maintaining device, which keeps temperature constant by a temperature-controlled relay, when temperature is too high, the temperature-contro
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 9, 2002
    Inventor: Jui Fu Lin
  • Patent number: 6382254
    Abstract: A microfluidic valve for controlling the flow of a material through a microfluidic channel comprising: a) a microfluidic channel comprising a passageway, b) a heater in contact with at least a portion of the microfluidic channel, c) a carrier fluid comprising the material and an amount of thermally-responsive material so that the carrier fluid can be thickened by heat from the heater to cause a reduction in flow of the carrier fluid through the microfluidic channel.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: May 7, 2002
    Assignee: Eastman Kodak Company
    Inventors: Zhihao Yang, Ravi Sharma
  • Patent number: 6371693
    Abstract: Apparatus and method are provided for connecting electrical power for heating subsea pipelines after the pipeline is deployed. Electrical connections may be made subsea using wet-mateable connectors. The electrical power may be supplied from a boat or may be supplied from a host structure. A Remotely Operated Vehicle may be used to make the subsea electrical connections. Single Heated Insulated Pipes, Pipe-in-Pipe, heat tracing and other configurations for heating may be employed. The deployment of cables and other equipment for heating may be delayed until a need or potential need for heating or the probable locations of impediments to flow are identified in the subsea pipeline.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 16, 2002
    Assignee: Shell Oil Company
    Inventors: Frans F. Kopp, Ronald M. Bass
  • Patent number: 6341615
    Abstract: A vacuum purge system is provided to protect the vacuum pump from becoming flooded with liquid that on occasion is purged with vapors from process equipment. The liquid is trapped in a vessel and then evaporated and exhausted through the vacuum pump as vapor. Evaporation of trapped liquid is effected by reducing or stopping the purge stream to the trapping vessel while continuing to operate the vacuum pump, thereby reducing the absolute pressure within the vessel. Evaporation of liquid can also be effected by supplying heat to the trapped vessel, either in cooperation with or instead of the pressure reduction. Use of a programmable logic controller enables a cyclic operation that traps liquid from entering the pump, removes the trapped liquid as vapor, and then resumes normal purge operation.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: January 29, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert Sam Zorich, David James Silva
  • Publication number: 20020007858
    Abstract: An improved double block and double bleed stream switching system (modifiable to, for example, a double block, single bleed stream switching system) includes a common stream path for a multitude of gas streams from, for example, a process pipeline. The improved stream switching system includes a heating mechanism and insulation oven to help temperature stabilization, along with a structure to separate temperature sensitive solenoids from the heated area. Pre-heat coils are located between the sample switching system and the sample shut off system to warm the gas sample and to act as a flow restrictor. A first embodiment is suited for the Division 1 environment and a second embodiment is suited for Division 2 uses. The improved stream switching system may also feature membrane or cartridge filters located upstream of the sample wetted portion of the stream switching system.
    Type: Application
    Filed: March 30, 2000
    Publication date: January 24, 2002
    Inventors: Yang Xu, Teresa Lechner-Fish
  • Publication number: 20010047826
    Abstract: An opening/closing valve comprises a valve body having a first port and a second port for allowing a pressure fluid to flow therethrough, a valve disk for opening/closing a communicating passage between the first port and the second port in accordance with a displacement action of a piston rod, first to third heaters provided on an outer wall surface of the valve body, for heating the valve body, and thermistors for controlling the heating temperatures of the first to third heaters.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 6, 2001
    Inventor: Tsuneo Ishigaki
  • Patent number: 6321780
    Abstract: A valve has a valve body having a passage including a hole in which gas flows, a valve seat surrounding a port of the hole. A valve disc is provided for closing the port of the hole, and an actuator is provided for operating the valve disc in a sine curve motion. The valve includes an inside heater for heating the valve disc.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: November 27, 2001
    Assignee: Benkan Corporation
    Inventor: Toshiaki Iwabuchi
  • Patent number: 6311720
    Abstract: An apparatus for protecting fluid conveying devices and for maintaining the temperature of material contained therein. The apparatus includes a cover that encloses a fluid conveying device and a drain channel that may be removable and is supportable upon a surface, fabricated support, or the cover itself. A rod may be adapted to releasably maintain the cover in place. Heating elements may be included within the drain channel or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint. The drain channel may employ a suitable valve or valves to facilitate the removal of discharged material from the enclosure. Adjustable forms are included that support the drain channel and provide the perimeter for a concrete slab.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: November 6, 2001
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Publication number: 20010029980
    Abstract: An injection valve for internal combustion engines has a filter element arranged on the inside of the injection valve in the fuel flow of the latter with ducts for the fuel. The filter element is designed as a throughflow heating element, for which purposes the walls of the throughflow ducts are capable of being heated, at least in certain regions, along their longitudinal extent.
    Type: Application
    Filed: January 29, 2001
    Publication date: October 18, 2001
    Inventors: Herbert Guettler, Eberhard Holder, Gerhard Kroetz, Martin Matt, Viktor Pfeffer
  • Patent number: 6296007
    Abstract: A fluid control valve which comprises a valve body structure having a fluid flow passage therethrough and a first sealing surface means and a closure structure for controlling the fluid flow through the passage with the closure structure having a second sealing means adapted to engage the first sealing means to shut off fluid flow through the valve wherein there is formed in the valve body structure an annular groove proximate the first sealing means for the positioning therein of an electrical heater cable overlaid with a heat conductive layer, the heated cable extending into and out of the valve bodies so as not to interfere with the operation of the valve, the electrical heater cable in communication with a source of electrical energy.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: October 2, 2001
    Inventor: Joseph Cifune
  • Patent number: 6293301
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure. A shield-support-bottom enclosure, which allows greater access for maintenance, is disclosed.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 25, 2001
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Publication number: 20010018926
    Abstract: An apparatus for maintaining the temperature of material conveyed through fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure. The apparatus may include an enclosure supported upon a chase or chases, which may extend from the enclosure downwardly to the frost line. Heating elements may be included within the chase(s) or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint all the way to the frost line. The enclosure may employ a suitable valve to facilitate the removal of discharged material from the enclosure in applications where the fluid conveying device discharges material to the atmosphere.
    Type: Application
    Filed: December 28, 2000
    Publication date: September 6, 2001
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 6283143
    Abstract: The present invention discloses a gas delivery apparatus for control of process and purge gases is disclosed that is suitable for use in a semiconductor processing system. The gas delivery apparatus includes a base plate integrating a printed circuit board and a heating layer. In addition, the gas delivery apparatus includes a plurality of gas stick components mounted on the base plate. Specific gas components are coupled to the integrated printed circuit board, which provides an electrical interface to the control electronics.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: September 4, 2001
    Assignee: Lam Research Corporation
    Inventors: Richard S. Adachi, Jr., An Le
  • Patent number: 6274854
    Abstract: A device for achieving vacuum conditions more quickly in a semiconductor processing system having a vacuum pump, a gate valve and a chamber includes a rigid body containing heating elements that contact the surface of the gate valve. The device may include a U-shaped retainer clip for holding the device to the gate valve. A method for heating a gate valve to drive off contaminants involves heating the lower portion of the gate valve to drive contaminants towards the vacuum pump.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: August 14, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Timothy Joseph Franklin, David Datong Huo
  • Patent number: 6264401
    Abstract: A method for enhancing the flow of heavy crude oil by heating a subsea pipeline is disclosed in which a pipe-in-pipe subsea pipeline is established having a flowline for transporting well fluids in the form of an electrically conductive inner pipe concentrically surrounded by an electrically conductive protective outer pipe and the inner pipe is electrically insulated from the outer pipe along the length of the subsea pipeline. The pipe-in-pipe subsea pipeline is electrically heated continuously along its length to maintain the temperature of crude oil at a level facilitating pipeline transportation, this heating comprising passing alternating electrical current along the exterior surface of the inner pipe and along the interior surface of the outer pipe. In this manner the crude oil can be maintained at a temperature at which viscosity does not prevent efficient and economical pipeline transport.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: July 24, 2001
    Assignee: Shell Oil Company
    Inventors: Carl Goittlieb Langner, Ronald Marshall Bass
  • Patent number: 6227236
    Abstract: Flow of processing gas is controlled by one valve from the atmospheric pressure to a substantial vacuum pressure. A valve body is disposed in a valve chamber having an inlet to be connected with a reaction chamber and an outlet to be connected with an evacuation pump. The valve body includes a first disc-shaped valve body portion to be pressed against a flange portion of a valve seat and a second disc-shaped valve body portion which is screwed on an end surface of the first valve body portion and adjusted its alignment. The second valve body portion is inserted into a valve hole of the valve seat. The first valve body portion has a circular groove at one of its surfaces to be brought into contact with the flange portion and an O-ring in the groove so as to choke fluid flow when in contact with the valve seat. The second valve body portion has tapered notches of which depths are gradually decreased from downstream to upstream.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: May 8, 2001
    Assignee: Megatorr Corporation
    Inventors: Satoru Kusumoto, Ryoichi Oka
  • Patent number: 6206030
    Abstract: A thermal insulating bag, with a waterproof outside surface and a heat-reflecting inside surface, is installed, open end downward, over a backflow prevention valve and the associated above-ground water pipes, to cover them. The bag has ballast contained in a hem around the perimeter of the open end, enabling the open end of the bag to conform to and seal against an irregular ground surface. The bag is flexible and can be rolled up or folded flat or in any desired configuration for storage. The ballast material, being heavy, holds the bag down on the ground and, being fluid-like, enables the perimeter of the open end to engage the contour of the ground throughout the perimeter to provide an effective cover-to-ground seal. Tabs extend outward at the open end and have holes in them to enable installation of anchor stakes, to anchor the lower end of the bag to the ground, desired. One embodiment electrically heated.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: March 27, 2001
    Assignee: Barthuly Irrigation, Inc.
    Inventor: Larry D. Barthuly
  • Patent number: 6196297
    Abstract: A pipe stand instrument heater system heats an instrument within an enclosure supported by a pipe stand. The heater system includes a housing mounted to the pipe stand and a heater unit in the housing. A bracket is provided for mounting the instrument to the housing. The heater unit can be powered by electric, steam or other fluids.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: March 6, 2001
    Assignee: Thermon Manufacturing Company
    Inventors: Bryan J. Campbell, Roy E. Barth, W. Gregory Huff, Ronald W. Zaborowski, Charles M. Bonorden, David L. Schlameus