Heating Element Producing Radiation Patents (Class 392/483)
  • Patent number: 11041660
    Abstract: A heating assembly includes a heater extending in a longitudinal direction from a first end to a second end. Heat transfer fins are thermally coupled to the heater and extend in a direction transverse to the longitudinal direction. An airflow component is positioned proximate one of the first and second end and is configured to generate airflow along the plurality of heat transfer fins toward the other of the first and second end.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 22, 2021
    Assignee: Rosemount Inc.
    Inventors: Steven S. Black, Willis Watkins, Jason P. Pratt
  • Patent number: 10225950
    Abstract: A heat exchange system for an aircraft includes an aircraft controller for controlling an operation of an aircraft, a thermoelectric device having a low temperature side and a high temperature side, an inlet line that carries fluid through the low temperature side of the thermoelectric device and to the aircraft controller; and an outlet line that carrier the fluid away from the and aircraft controller through the high temperature side of the thermoelectric device. Heat is transferred away from the inlet line to the outlet line through the thermoelectric device when a predetermined condition is met.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: March 5, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: William E. Rhoden, Charles E. Lents
  • Patent number: 10170677
    Abstract: A thermoelectric generator system according to the present disclosure includes first and second thermoelectric generator units, each including tubular thermoelectric generators. Each of the generators has a flow path defined by its inner peripheral surface, and generates electromotive force in an axial direction thereof based on a temperature difference between its inner and outer peripheral surfaces. Each unit further includes: a container housing the generators inside; and electrically conductive members providing electrical interconnection for the generators. The container has fluid inlet and outlet ports through which a fluid flows inside, and openings into which the generators are inserted. A buffer vessel is arranged between the first and second units, and has a first opening communicating with the flow paths of the generators in the first unit and a second opening communicating with the flow paths of the generators in the second unit.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: January 1, 2019
    Assignee: Panasonic Corporation
    Inventors: Tsutomu Kanno, Akihiro Sakai, Kohei Takahashi, Hiromasa Tamaki, Hideo Kusada, Yuka Yamada
  • Patent number: 9791169
    Abstract: The invention is directed to a liquid heater for rapidly heating a liquid without overheating the liquid. The liquid heater comprises a liquid flow channel having a passage through which liquid flows, a heating part disposed outside the liquid flow channel, a heat reflecting part facing a heat radiating side of the heating part, and a cooling part through which a cooling medium flows adjacent a reverse side of a reflecting surface of the heat reflecting part for cooling the heat reflecting part. Radiant heat not absorbed in the liquid is reflected by the heat reflecting part. The heat reflecting part reflects radiant heat cooled by the cooling part so that the body of the liquid heater and peripheral members are maintained at a temperature not higher than a predetermined temperature to prevent overheating the liquid.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: October 17, 2017
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventors: Minoru Uchida, Haruyoshi Yamakawa, Naoki Matsumoto
  • Publication number: 20140334808
    Abstract: A fluid heating device for heating chemicals mainly containing sulfuric acid, which is capable of suppressing reduction of heating efficiency even if a fluid mainly containing sulfuric acid is heated, includes a translucent inner tube composed of quartz or the like, a lamp heater disposed in the inner tube, a translucent outer tube disposed outside the inner tube, which is composed of quartz or the like, translucent side plates disposed on both sides of the outer tube, which include quartz or the like, and an amorphous carbon pipe disposed between the outer tube and the inner tube, which functions as a light-absorbing material, wherein the amorphous carbon pipe is disposed so as to be brought into contact with chemicals passing through a space between the outer tube and the inner tube.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventor: Hiroaki MIYAZAKI
  • Patent number: 8731386
    Abstract: The invention relates to an electric heating device for heating fluids, comprising at least one heating rod, which has at least one heating element, a housing, which encloses the heating rod and has an inlet opening and an outlet opening, wherein the inlet opening and the outlet opening are interconnected by a winding flow channel. According to the invention, the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed next to the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 20, 2014
    Assignee: BorgWarner BERU Systems GmbH
    Inventors: Ralph Waechter, Michael Stoerzinger, Bernd Halbrock, Alexander Dauth, Klaus Lehmann
  • Patent number: 8670656
    Abstract: Disclosed are a liquid heating unit capable of monitoring the temperature of the liquid storage tank or pipe in which liquid is heated by transmission of the radiated light, a liquid processing apparatus including the same, and a liquid processing method. The liquid heating unit includes: a lamp heater radiating light; a cylindrical member made of material transmitting the radiated light and having a cylindrical shape in which the lamp heater is able to be inserted and penetrated into an internal space thereof; a liquid pipe placed along an outer periphery of the cylindrical member and configured to heat liquid flowing therein using the radiated light; a reflection plate that covers the liquid pipe from the outside and reflects the radiated light; and a first temperature sensor attached to an outer surface of the reflection plate.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: March 11, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Toshihiko Nishida, Kazuyoshi Eshima, Hisakazu Nakayama
  • Publication number: 20140029924
    Abstract: A liquid heating method and apparatus including a heat device 7 having a flow passage member forming a tubular flow passage for passing a sulfuric acid solution, a heater arranged on an outside of at least one of opposing flow passage surfaces of the tubular flow passage, a liquid draining line 10, an atmosphere opening line 12, valves 11 and 13, a liquid draining mechanism for draining the sulfuric acid solution heated at least in a heat receiving area between the opposing liquid flow passage surfaces of the tubular flow passage, a flow meter 6 for measuring a flow rate of the sulfuric acid solution, and a control unit 14 responsive to the flow meter 6 for determining a defective liquid flow in the tubular flow passage and for draining the sulfuric acid solution using the liquid draining mechanism.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 30, 2014
    Applicant: Kurita Water Industries ltd
    Inventor: Minoru Uchida
  • Patent number: 8450666
    Abstract: A water boiling device includes a heat tank unit received in a machine body, a high frequency induction heater, and a heat pipe unit. The heat tank unit includes first and second heating tanks in communication with each other. Outside water can flow into the first and second heating tanks. The high frequency induction heater includes a heat pipe induction coil and first and second induction coils. The heat pipe unit includes first and second heating pipes. An upper section of each heating pipe is received in one of the heating tanks, and a lower section of each heating pipe extends out of the heating tanks and is inserted into the heat pipe induction coil. The first and second heating tanks will heat up to heat the water in the first and second heating tanks when a high frequency current is passed through the heat pipe induction coil and first and second induction coils.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: May 28, 2013
    Inventors: Shun-Chi Yang, Mao-Hsiung Yang, Tsung-Chuan Yang, Fang-Ming Wu, Cheng-Yen Wu
  • Publication number: 20120275775
    Abstract: Water heaters are disclosed having first and second fluid conduits, where the second fluid conduit is fluidly coupled to and disposed about at least a portion of the first conduit. One or more heating device, and preferably an infrared light source, can be disposed between the first and second conduits, such that water flowing within the conduits can be heated by the heating device.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 1, 2012
    Inventor: Zoran Iskrenovic
  • Publication number: 20120063754
    Abstract: Disclosed are a liquid heating unit capable of monitoring the temperature of the liquid storage tank or pipe in which liquid is heated by permeation of the radiated light, a liquid processing apparatus including the same, and a liquid processing method. The liquid heating unit includes: a lamp heater radiating light; a cylindrical member having a cylindrical shape made of material permeating the radiated light configured to insert and penetrate the lamp heater into an internal space; a liquid conduction part placed along an outer periphery of the cylindrical member and configured to heat liquid flowing therein by using the radiated light; a reflection plate covering the liquid conduction part from the outside and reflecting the radiated light; and a first temperature sensor attached to an outer surface of the reflection plate.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 15, 2012
    Inventors: Toshihiko Nishida, Kazuyoshi Eshima, Hisakazu Nakayama
  • Patent number: 7668444
    Abstract: The present invention relates to a pipe heater encircled conduit device (1), in which a heating element (111) wrapped with a filament (112) having high resistance is provided and a hollow quartz inner tube (113) is inserted at the outside of said heating element (113) to form a pipe heater (11), both ends of the heating element (111) being connected with an electrode pin (114) respectively. A hollow quartz outer tube (123) is inserted at the outside of the pipe heater (11), which has an inlet (121) and an outlet (122) on the tube wall. A heat transfer space (A) is thus formed between the inner quartz tube (113) and the outer quartz tube (123), and insulation members (124) are combined with the respective opening end of both tubes. By the arrangement of the inner and outer quartz tubes.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 23, 2010
    Inventor: Hua-Hsin Tsai
  • Patent number: 7020388
    Abstract: Disclosed is a heat transfer system, the heat emanating from a regular light bulb wherein the heat generated by the filament within the glass of the light bulb is generally wasted by exposure to the environment. The regular light bulb is surrounded by a metallic heat shield in close proximity to the light bulb. The heat shield itself is surrounded by a coiled tubing having a medium that will heat because of the influence of the heat from the light bulb. The heated medium will be transferred to another location to heat another medium such as water, for example. The light will also be transferred to another light emitting source to light a predetermined area. The light transfer may be accomplished by a glass fiber optic cable which will transfer the light energy from the initial light source, the light bulb, to a new source of a light receiving device.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: March 28, 2006
    Inventor: Marcus A Mills
  • Patent number: 7003220
    Abstract: A quartz heater is provided for heating fluids or objects. The heater comprises a member, for example, a quartz glass tubular or non-tubular member, with a low-emissivity conductive coating that produces heat when connected to external power. The fluid can be heated as it passes through the tubular member. If the member is not completely coated, then heat radiates toward the center of the member, pass through its uncoated portion, and then onto objects for heating.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: February 21, 2006
    Assignee: Engineered Glass Products, LLC
    Inventor: Peter F. Gerhardinger
  • Patent number: 6868230
    Abstract: A vacuum insulated heater assembly is provided for heating fluids and solids. The assembly includes an inner member, for example, a quartz glass tube with a low-emissivity conductive coating that produces heat when connected to external power. The inner member is attached to end caps that are attached to ends of, for example, an outer quartz glass tube, thus positioning the inner member within the outer tube. With a vacuum drawn within the space between the two tubes, the resulting heat radiates toward the center of the inner member, thus providing a thermos bottle type of construction. The fluid can be heated as it passes through the inner tube. If the inner member is not completely coated then heat would radiate toward the center of the inner member, pass through its uncoated portion, and then pass through the outer tube, where objects can be heated.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: March 15, 2005
    Assignee: Engineered Glass Products LLC
    Inventor: Peter F. Gerhardinger
  • Publication number: 20040184794
    Abstract: This present invention for an in-line fluid heater suitable for heating ultrapure fluids utilizes a radiant energy source that generates infrared radiation to heat a fluid. The fluid to be heated is passed through a vessel such as a tube. The vessel, formed of PFA or polytetraflouroethylene, is coiled around the lamp or lamps. A chamber surrounds the lamp or lamps and the vessel. A temperature sensor at the outlet end of the vessel sends a signal to a controller that adjusts either the flow of fluid through the vessel or the intensity of the lamp or lamps, thereby controlling the fluid temperature at the outlet. The system is useful in any application requiring an ultraclean, non-contact method of raising the temperature of various liquids and gases.
    Type: Application
    Filed: December 11, 2003
    Publication date: September 23, 2004
    Inventors: Thomas Johnson, Timothy Vaughn
  • Publication number: 20040096204
    Abstract: A vacuum insulated heater assembly is provided for heating fluids and solids. The assembly includes an inner member, for example, a quartz glass tube with a low-emissivity conductive coating that produces heat when connected to external power. The inner member is attached to end caps that are attached to ends of, for example, an outer quartz glass tube, thus positioning the inner member within the outer tube. With a vacuum drawn within the space between the two tubes, the resulting heat radiates toward the center of the inner member, thus providing a thermos bottle type of construction. The fluid can be heated as it passes through the inner tube. If the inner member is not completely coated then heat would radiate toward the center of the inner member, pass through its uncoated portion, and then pass through the outer tube, where objects can be heated.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 20, 2004
    Applicant: Engineered Glass Products, LLC.
    Inventor: Peter F. Gerhardinger
  • Patent number: 6696671
    Abstract: With reference to a device for heating a meltable material, such as plastic, upstream from equipment for further processing, such as casting or extrusion equipment, which device includes a conveyor channel for the material and a heating means located outside the conveyor channel, the heating means being designed as a radiant heating means and the thermal radiation being directed onto the conveyor channel, the invention proposes that the conveyor channel consist of a material which completely or partially absorbs the thermal radiation.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: February 24, 2004
    Assignee: Ing. Walter Hengst GmbH & Co. KG
    Inventor: Christian Boehnke
  • Patent number: 6621984
    Abstract: An in-line fluid heating system including a lamp module having a plurality of heating lamps. A fluid vessel is configured to slidably accept the lamp module therein. The fluid vessel includes a fluid inlet, a fluid outlet, a central tube, and an outer envelope in fluid communication with and coaxial to the central tube. The heating lamp module is removably disposed between the central tube and outer envelope such that the fluid is heated as it passes through the central tube and the outer envelope. A reflector substantially surrounds the fluid vessel for reflecting energy emitted from the lamp module back into the fluid vessel. Insulation may substantially surround the reflector and fluid vessel to further prevent heat loss.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 16, 2003
    Assignee: Integrated Circuit Development Corp.
    Inventors: Hector Joel Castañeda, Edward Ramsis Attia, Jose Luis Tlaxca
  • Patent number: 6607608
    Abstract: A system for stripping an optical fiber includes a source of air and means for generating very short bursts of air. A heater heats the bursts of air to a temperature sufficient to remove the outer coating from an optical fiber, while maintaining the air isolated from the heat source. A single burst of heated air removes the outer coating of an optical fiber, within less than about one second. A series of closely spaced bursts or a prolonged burst of heated air may be used to remove an expanded length of fiber coating. Stripping may include translation of the fiber or the heater or portions thereof. The stripper may be configured to strip several loaded fibers or a single fiber.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: August 19, 2003
    Assignee: 3SAE Technologies, Inc.
    Inventors: Carmine J. Vetrano, Robert G. Wiley, Matthew W. Reed
  • Publication number: 20030026603
    Abstract: An in-line fluid heating system including a lamp module having a plurality of heating lamps. A fluid vessel is configured to slidably accept the lamp module therein. The fluid vessel includes a fluid inlet, a fluid outlet, a central tube, and an outer envelope in fluid communication with and coaxial to the central tube. The heating lamp module is removably disposed between the central tube and outer envelope such that the fluid is heated as it passes through the central tube and the outer envelope. A reflector substantially surrounds the fluid vessel for reflecting energy emitted from the lamp module back into the fluid vessel. Insulation may substantially surround the reflector and fluid vessel to further prevent heat loss.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 6, 2003
    Inventors: Hector Joel Castaneda, Edward Ramsis Attia, Jose Luis Tlaxca
  • Patent number: 6327429
    Abstract: A coffee maker heater shortens brew times by employing steel components which are brazed together. A copper brazing material efficiently conducts heat from the coffee maker heater element to the base plate and water tube. Brazing increases the thermally conductive surface area of the junctions between components of the coffee maker. A stainless steel water tube minimizes contamination of the heated water. Steel components tolerate increased levels of heat, permitting use of high power heater elements. The combination of high power heater elements with improved thermal performance shortens brew times by as much as one third.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: December 4, 2001
    Assignee: Electrical & Electronics Limited
    Inventor: Yee-Koo Chan
  • Patent number: 6236810
    Abstract: A fluid temperature control device, which has a high cooling capacity, wide controllable temperature range and an excellent temperature control accuracy. A transparent cylinder (3) is inserted in a cylindrical-shaped vessel (1), and a columnar-shaped heating lamp (5) is inserted in the transparent cylinder (3). A fluid desired to be temperature controlled is made to flow in a passage (25) between the vessel (1) and the transparent cylinder (3). Joined to an outer peripheral al surface of the vessel (1) is a thermoelectric conversion element (7) , to an outer surface of which is joined a cooling pipe (9). A cooling liquid is made to flow in the cooling pipe (9) . Fluid heating is effected by the heating lamp (5). Fluid cooling is effected by the cooling liquid and the thermoelectric conversion element (7) forcibly absorbs heat from the fluid and discharges heat to the cooling liquid to thereby cool the fluid rapidly and cool the fluid to a temperature lower than that of the cooling liquid.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: May 22, 2001
    Assignee: Komatsu, Ltd.
    Inventor: Kanichi Kadotani
  • Patent number: 6157778
    Abstract: A fluid temperature control device is improved to be simpler in structure, less in fluid temperature non-uniformity, and able to heat a fluid having a small light absorbability. The fluid temperature control device has a cylindrical inner vessel (20), a cylindrical outer vessel (22) surrounding the inner vessel (20), and a heating lamp (25) inserted into the inner vessel (20). Metal fins (28a) and (28b) are provided on the inner and outer circumferential surfaces of the inner vessel (20). A working fluid is passed through the inner space (21) between the inner vessel (20) and the heating lamp (25), and a cooling liquid is passed through the outer space (23) between the inner vessel (20) and the outer vessel (22). Infrared rays from the heating lamp (25) heat the working fluid, and the cooling liquid cools the working fluid. This device is applicable to, for instance, temperature control of plural process chambers of semiconductor processing apparatus.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: December 5, 2000
    Assignee: Komatsu Ltd.
    Inventor: Kanichi Kadotani
  • Patent number: 5790752
    Abstract: A highly efficient in-line fluid heater is suitable for heating ultra-pure fluids. Preferably, the heater can be used for heating various fluids, including water, as part of a "wet bench" system used in a wafer processing fabrication facility for the semi-conductor industry. Many other uses for this in-line heater can be envisioned; e.g., water industry, gas processing, and any other use requiring an ultra-clean, highly efficient, non-contact method of raising the temperature of various liquids and gases. The preferred in-line heater utilizes one or more elongated lamps that generate IR radiation as the heating elements. A vessel is provided through which the fluid to be heated is passed. Typically, the vessel is a tube. The tube is preferably a straight single diameter tube, but can be formed in any convenient shape. For ultra-pure fluids, the vessel is formed of an inert or non-reactive material such as quartz. Preferably, the vessel is transparent to the IR radiation generated by the lamps.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: August 4, 1998
    Assignee: Hytec Flow Systems
    Inventors: Noah L. Anglin, Roy J. Machamer, Stanley J. Hludzinski, Robert G. Garber
  • Patent number: 5740315
    Abstract: A fluid heating apparatus in which a heating unit (2) and a fluid supply adjusting unit (3) are accommodated in a casing in a manner separated from each other and connected through a flow-in tube (8) and a flow-out tube (9) and the fluid supply adjusting unit (3) is arranged vertically upward and downward on the side of the heating unit (2).
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: April 14, 1998
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Tetsuo Onishi, Hiromasa Takamatsu, Makio Tsubota
  • Patent number: 5590240
    Abstract: A high efficiency, non-contaminating fluid heater, including inner and outer helical passageways formed from an electrically non-conductive material and through which ultra pure fluid, such as ultra pure water, passes as it is heated. A coiled resistance heater is disposed about the helical outer surface of the inner helical passageway to heat by radiation, conduction and convection the ultra pure fluid which flows through the inner passageway. The outer passageway substantially surrounds the inner passageway and, at least in part, supports the outer passageway. The outer helical passageway is disposed to enable ultra pure fluid flowing therethrough to absorb radiated and convected heat from the coiled resistance heater to increase the efficiency of the fluid heater.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: December 31, 1996
    Assignee: Process Technology Inc
    Inventor: Dennis J. Rezabek
  • Patent number: 5559924
    Abstract: A fluid heater, capable of having a high energy density structure with an increased radiation receiving area, facilitating maintenance services and preventing intrusion of contamination substances, comprises a transparent internal pipe (11) which is open-ended at both ends and is positioned within an external pipe (12) of a fluid heating pipe unit (1). The fluid heating pipe unit (1) is provided with a fluid inlet (31) and a fluid outlet (32). The adjacent ends of the external pipe (12) and internal pipe (11) are connected to each other and sealed, and an electrical radiant heater (2) is arranged within the internal pipe (11) with a space (7) left therebetween. The ends of the electric heater (2) are removably supported by positioning members (91, 92). An inwardly directed radiation reflecting surface (12b) and/or a radiation absorbing material (12c) can be provided as part of the external tube (12).
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: September 24, 1996
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Kanichi Kadotani, Kazuhiko Kubota, Mitsuru Ohaku
  • Patent number: 5337619
    Abstract: A radiant energy heating source for heating the sample during purge of analytes to the sorbent trap is disclosed. The radiant energy heat source may be provided with a filter to pass only certain spectra of visible light to the sample. A thermocouple is provided to monitor the temperature of the sample and provide feedback to the radiant energy heating source.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: August 16, 1994
    Assignee: O. I. Corporation
    Inventors: Bruce J. Hodgins, Robert L. Roth
  • Patent number: 5271086
    Abstract: A liquid heating apparatus 1 has a flow path 2 surrounded by a quartz glass tube 5 inside a tubular ceramic heater 4 which radiates infrared rays and has a PTC characteristic, and a flow path 3 which is formed between two quartz glass tubes 6, 7 which are disposed outside the tubular ceramics tube 4 in a coaxial manner. The liquid heating apparatus can effectively heat purified water used for manufacturing electronics-related products without contamination of the purified water, and provides a compact size while having a high heat capacity.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: December 14, 1993
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toshihisa Kamiyama, Masanori Kawaguchi, Tetsuo Takehara
  • Patent number: 5214740
    Abstract: An apparatus for electrically heating non-flammable gases, supplied to an applicator gun comprises an elongated housing having an elongated electric heater located centrally and longitudinally therein and a metallic helically coiled tube spaced from and surrounding the heater. The coiled tube is substantially co-extensive in length with the heater and has an inlet end and an outlet end connectable to an applicator gun. An elongated preheating tubing section is disposed length-wise of and surrounded by the helically coiled tube in spaced heat exchange relation with the electric heater. The preheating tubing section has an inlet end connectable to a supply of non-flammable gas and an outlet end connected to the inlet end of the coiled tube.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: May 25, 1993
    Inventor: Carl W. Carroll
  • Patent number: 5054107
    Abstract: A fluid heating system, which includes a set of lamps emitting infrared or longer wavelength radiation. The fluid to be heated flows through chemically inert tubing while absorbing radiation from the lamps. The lamps are separated from the tubing, so that there is no significant risk that contaminants will enter the tubing during operation. In one class of preferred embodiments particularly well suited for heating ultrapure water, the inert tubing is a quartz coil. Lamps are mounted inside the coil generally parallel to the coil axis. Reflective material is wrapped around the outer surface of the coil to reflect radiation that has passed through the coil back toward the coil axis. The quartz comprising the coil is selected to transmit the lamp radiation efficiently to the fluid within the coil. In one embodiment, the lamps are mounted between a pair of end plate assemblies.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: October 1, 1991
    Inventor: Geoffrey Batchelder
  • Patent number: 5014339
    Abstract: A device for heating a flow of substantially pure gas flowing in a flow direction to temperatures above about 600.degree. C. is disclosed. The device includes a heat exchanger having a heat exchanger surface extending transversely to the flow direction whereby the substantially pure gas flows across the heat exchanger surface. The heat exchanger is made of a ceramic material for heating the pure gas without contaminating the gas flow. An infrared radiation source arranged outside of the flow of pure gas irradiates the heat exchanger surface.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: May 7, 1991
    Assignee: Deutsche Forschungsanstalt fur Luft- und Raumfahrt e.V.
    Inventor: Peter Tattermusch