US3898428A - Electric in line water heating apparatus - Google Patents
Electric in line water heating apparatus Download PDFInfo
- Publication number
- US3898428A US3898428A US44913774A US3898428A US 3898428 A US3898428 A US 3898428A US 44913774 A US44913774 A US 44913774A US 3898428 A US3898428 A US 3898428A
- Authority
- US
- United States
- Prior art keywords
- water
- heater
- tubing
- corrugations
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011901 water Substances 0.000 title claims abstract description 63
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 229910052751 metals Inorganic materials 0.000 claims description 8
- 239000002184 metals Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000002708 enhancing Effects 0.000 abstract description 3
- 239000004773 Thermostat Substances 0.000 description 3
- 239000002826 coolants Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound 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Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/542—Continuous-flow heaters
- A47J31/545—Control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
- F24H1/00—Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater
- F24H1/10—Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
- F24H1/102—Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
Abstract
In line water heating apparatus comprising a cylindrical heating element positioned within a length of vertical helically corrugated tubing is compact in size, low in cost and very efficient in transferring heat to the water. The outer surface of the cylindrical heating element is uniformly spaced from the innermost portions of the corrugations along its entire length by a slight distance therefrom which is less than the depth of the corrugations. The internal helical tube corrugations cause a portion of the water entering at the bottom to tend to travel in a spiral, thus lengthening its contact path with the heater element before it is drawn off at the top of the apparatus. However, their main purpose is to induce turbulent flow conditions in the water and thus enhance the rate of heat transfer. Since the corrugated tube is spaced from the heater core, the water can also circulate and maintain its temperature when the valve is closed. A dual mode temperature control permits the small supply of water which is always present in the device to be maintained at a temperature somewhat less than the desired temperature so that water leaving the apparatus can very quickly be brought to its maximum and so that randomly drawn off single cups of water will be at a sufficiently hot temperature.
Description
United States Patent Dye ELECTRIC IN LINE WATER HEATING APPARATUS Inventor: William G. Dye, Jacksonville, Fla.
Universal Oil Products Company, Des Plaines, 111.
Mar. 7, 1974 Assignee:
Filed:
Appl. N0.:
References Cited UNITED STATES PATENTS FOREIGN PATENTS OR APPLICATIONS Levey l-lymes Spensley et al.
Ewing 219/306 Chandler 219/306 X 219/298 219/306 99/281 X Kautz 219/302 X United Kingdom 219/306 Austria 219/305 Aug. 5, 1975 [57] ABSTRACT In line water heating apparatus comprising a cylindrical heating element positioned within a length of vertical helically corrugated tubing is compact in size, low in cost and very efficient in transferring heat to the water. The outer surface of the cylindrical heating element is uniformly spaced from the innermost portions of the corrugations along its entire length by a slight distance therefrom which is less than the depth of the corrugations. The internal helical tube corrugations cause a portion of the water entering at the bottom to tend to travel in a spiral, thus lengthening its contact path with the heater element before it is drawn off at the top of the apparatus. However, their main purpose is to induce turbulent flow conditions in the water and thus enhance the rate of heat transfer. Since the cor rugated tube is spaced from the heater core, the water can also circulate and maintain its temperature when the valve is closed. A dual mode temperature control permits the small supply of water which is always present in the device to be maintained at a temperature somewhat less than the desired temperature so that water leaving the apparatus can very quickly be brought to its maximum and so that randomly drawn off single cups of water will be at a sufficiently hot temperature.
3 Claims, 3 Drawing Figures worm 30 uurn PATENTEB AUG 5l975 CONTROL UN/ 7' HEATER IPESS/JRE REL E VALUE cowmmr Flaw mm? INLET VALVE 1 ELECTRICVIN'L'INE WATER HEATING APPARATUS BACKGROUND OF THEJINVEVNTION i DESCRIPTION OF THE PREFERRED EMBODIMENT The in line heater apparatus shown generally at This invention relates to inline water heaters and 5 includes an upper end member 12 and a lower end particularly to heaters whichare adapted to heat small quantities of water in an instantaneous manner, such as for use in coffee brewing apparatus in aircraft- Various heaters for heatingfl'uids are known in the prior art, as exemplified by US. Pat. Nos. 2,245,085; 2,307,924; 2,577,269; 2,792,487; 2,802,089;- and 3,584,194. Each of these heaters can be characterized as having spirally shaped heater elements or spirally shaped internal walls which cause the fluid to flow in an extended path. Although British Pat/No. 398,589 shows an engine heater having a corrugated outer tube, most of the engine coolant would not flow through the tube since the tube is merely connectedto a coolant carrying tube by a tee fitting with any flow in the heater tube being caused by gravity due to variations in density. Any heating that takes place in such a heater would bevery slow and inefficient.
SUMMARY It is among the objects of the present invention to provide a compact, in-line water heater that is simple to construct and maintain and which is capable of continuously, and almost instantly delivering hot water at a temperature vlery closeto boiling.
The heater apparatus comprises a short length of braid reinforced, helically corrugated tubing having a water inlet and flow control valve at its lower end and a-water outlet at its upper end. A tubular sealed heating element is mounted in the lower end and extends upwardly for almost the entire length of the tube. The smooth outer surface of the heating element is spaced from the tubing corrugations by a distance slightly less than the depth of the corrugations. The spacing causes turbulence to be induced in the water when it is flowing so as to increase heat transfer. The spacing'also permits the water remaining within the apparatus when water is not being drawn off to circulate and thus be main tained at a relatively uniform'idle temperature. A temperature control positioned in the water within the tubing at a point above the heating element operates to maintain the water between an idle temperature of about 180F and a use temperature of about 195F.
To prevent the water pressure within the corrugated metal tubing from expanding the tubing, a flexible metal braid is placed around the tubing and is firmly affixed to metal ferrules attached to the ends of the corrugated tubing. A temperature control at the exit end of the heater senses the outlet water temperature and controls the operation of the heating element. An overheat thermostat mounted within the heater core serves to shut off the heating elements in case of an excess heat malfunction while a pressure release valve mounted near the outlet of the apparatus provides additional safety protection in the event the water pressure becomes excessive.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is an enlarged view of a portion of FIG. 2.
member 14, each of which members havea bracket member 16 attached to it for mounting the apparatus 10 in a vertical position. A thin, corrugated metal tube 20 is affixed at its ends, preferably by welding, to the upperand lower endmembers 12, 14. Abraided wire metal sleeve 22 contacts the outermost surface portions of the corrugated tube 20 and is also welded to the endmembers 12,14. The braided sleeve not only prevents elongation of the corrugated tube 20 under pressure but also increases the maximum pressure which may be present inside the apparatus 10. The various aforementioned metal elements are preferably formed of stainless steel. Although the apparatus 10 could be used any place there is a need for a continuous flow of hot water, it is particularly useful in a coffee brewing apparatus for an aircraft. Since the invention relates to the internal design of the apparatus 10 rather than to the switches and other electrical circuit elements which control the flow of water through it, these circuit elements will be only generally described. Although 'not shown the entire unit 10 is preferably wrapped in a blanket of fiber glass insulation having an outer foil faced surface.
; In operation, water enters the inlet valve member 26 whichis threaded intothe end member 14. The entering water is heated by contact with the surface of sealed heating unit 30 which is mounted into the end member 14 by pipe threads 32. Heat is generated inside the heating unit 30 by three heater wires 34 connected in a three-phase delta arrangement. The heater unit 30 is protected against being damaged by overheating, such as might occur if the unit were operated without water being present, by means of an overheat thermostat (now shown). Wires 36 connected to the overheat thermostat lead out of the heater unit 30 to a control box 35. As the water which enters the unit 10 moves upwardly through the unit a portion of it tends to travel in a spiral through the corrugations 37 while the remainder of it moves in a generally axial direction through the space 38 between the heater unit 30 and the inside walls of the corrugations 20. The innermost portions of the corrugations 20 comprise ridges 20' which induce turbulence in the water flowing through the space 38, the space 38 having a width w less than the depth d of the corrugations, so as to enhance the rate of heat transfer. A water outlet fitting 40 is threaded into the upper end member 12. Water leaving the outlet fitting 40 preferably passes through an electrically actuated solenoid type valve (not shown) which controls the flow out of the unit. A pressure release valve 42 is mounted in the upper end member 12 as a safety feature in the event that excess pressure develops within the unit. A temperature control assembly 44 also is threaded into the end member 12. The temperature control unit 44 includes a temperature sensing probe 46 which senses the temperature of the water above the top of the heater unit 30. The probe 46 is preferably of stainless steel which surrounds a column of mercury. As the mercury rises with an increase in temperature it first closes the contacts of an idle mode switch which deactivates a heater control relay (not shown). If the apparatus is in a full heating mode, the
control box 35 where they are connected to the aforementioned relay (not shown) which is'in circuit with the heater wires 34. The circuit is arranged'so that during standby or idle operation, the water within the heater is controlled by control 44 and heater unit 30 so as to be maintained at an idle temperature of approximately 180. As soon as water flow is commenced, such as by actuation of the brew" button on a coffee brewer (not shown) to which the unit may be attached, the temperature control 44 actuates the heater unit 30 to cause the water to be additionally heated so that water leaving the outlet 40 will reach and will maintain a temperature of about 195F, a temperature at which it is held until delivery of hot water is no longer desired. By maintaining the unit at an idle temperature it is possible to add sufficient heat even to the first cup of water drawn offso that the unit may be used to provide either a single cup of water such as for making tea or may be operated continuously such as to fill a coffee pot. The water inlet valve 26 is preferably of the type which compensates for changes in inlet pressure to assure a constant flow of water matched to the capability of the heating elements. The constant water flow rate is also important when the unit is controlled by a time delay relay which permits water to flow for a fixed period of time to brew a pot of coffee when a brew cycle is started.
In a test unit incorporating the invention and utilizing a 3,000 watt heater (Watlow type T8Ax6A), a Micropump incorporated flow control valve type 89ZSS, and a Philadelphia Scientific Glass Corporation Model 5-09319 temperature control, a flow of about oz. per minute was achieved at a temperature of 195F. The efficiency of the design was compared to a unit which was identical except that the corrugations 20 touched the outer surface of the heater unit 30 so as to force all of the water to follow a spiral path. The design was also compared to a unit wherein the corrugated tube 20 was replaced by a smooth wall tube having the same internal diameter. in each instance, the inlet water temperature, the inlet pressure, the length of the brew cycle and the quantity of water in the pot were held constant. The design of the present invention wherein a space 38 is provided between the heater 30 and corrugated tube 20 provided a 3 to 5F higher pot temperature in every testrun.
I claim as my invention: I I
1. In line heater apparatus for providing an instantaneous supply of hot water comprises a length of helically corrugated tubing positioned in surrounding, spaced relation to an axially positioned cylindrical heater element mounted on one of first and second end members positioned at each end of said tubing and integrally attached thereto, means on said first endmember for attaching the apparatus to a water supply line, means on said second end member for attaching the apparatus to a valve controlled dispensing line, temperature control means mounted in said second end member for controlling the operation of said heater element, said cylindrical element extending for substantially the entire length of said corrugated tubing and the outer surface of the cylindrical heater element being uniformly spaced from the innermost portions of the corrugations along its entire length by a slight distance therefrom which is less than the depth of the corrugations, the spacing being sufficient that water flowing from one end of said tubing to the other will flow in a generally helical path through the corrugations and in a generally axial direction in said space and in turbulent contact with said cylindrical heating element.
2. The heater apparatus of claim 1 wherein a braided metal sleeve surrounds said corrugated tubing and is welded to said first and second end members, said braided sleeve serving to prevent elongation of the tubing due to increases in the pressure of the fluid within the system. V i
3. The heater apparatus of claim 1 wherein the tubing, end members and braided sleeve are each .formed of stainless steel.
Claims (3)
1. In line heater apparatus for providing an instantaneous supply of hot water comprises a length of helically corrugated tubing positioned in surrounding, spaced relation to an axially positioned cylindrical heater element mounted on one of first and second end members positioned at each end of sAid tubing and integrally attached thereto, means on said first end member for attaching the apparatus to a water supply line, means on said second end member for attaching the apparatus to a valve controlled dispensing line, temperature control means mounted in said second end member for controlling the operation of said heater element, said cylindrical element extending for substantially the entire length of said corrugated tubing and the outer surface of the cylindrical heater element being uniformly spaced from the innermost portions of the corrugations along its entire length by a slight distance therefrom which is less than the depth of the corrugations, the spacing being sufficient that water flowing from one end of said tubing to the other will flow in a generally helical path through the corrugations and in a generally axial direction in said space and in turbulent contact with said cylindrical heating element.
2. The heater apparatus of claim 1 wherein a braided metal sleeve surrounds said corrugated tubing and is welded to said first and second end members, said braided sleeve serving to prevent elongation of the tubing due to increases in the pressure of the fluid within the system.
3. The heater apparatus of claim 1 wherein the tubing, end members and braided sleeve are each formed of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44913774 US3898428A (en) | 1974-03-07 | 1974-03-07 | Electric in line water heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44913774 US3898428A (en) | 1974-03-07 | 1974-03-07 | Electric in line water heating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3898428A true US3898428A (en) | 1975-08-05 |
Family
ID=23783006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US44913774 Expired - Lifetime US3898428A (en) | 1974-03-07 | 1974-03-07 | Electric in line water heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3898428A (en) |
Cited By (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185187A (en) * | 1977-08-17 | 1980-01-22 | Rogers David H | Electric water heating apparatus |
| US4199675A (en) * | 1977-06-23 | 1980-04-22 | Nordson Corporation | Electric fluid heater |
| US4261333A (en) * | 1979-12-03 | 1981-04-14 | Stephen Guarnaschelli | Solar heat exchanger |
| EP0062691A1 (en) * | 1981-04-15 | 1982-10-20 | Elpag Ag Chur | Heat exchanger |
| US4364754A (en) * | 1981-04-13 | 1982-12-21 | Century 21 Pollution Control, Inc. | Apparatus for separating foreign matter from a gas with a heat exchanger |
| WO1983004465A1 (en) * | 1982-06-07 | 1983-12-22 | Graco Inc. | Electric fluid flow heater having precise temperature control |
| US4468406A (en) * | 1981-05-20 | 1984-08-28 | Staar S.A. | Method for automatically brewing coffee and machine therefor |
| US4661323A (en) * | 1985-04-08 | 1987-04-28 | Olesen Ole L | Radiating sleeve for catalytic reaction apparatus |
| FR2600855A1 (en) * | 1986-06-26 | 1987-12-31 | Electricite De France | ELECTRIC HEATING DEVICE HAVING A METAL SHEATH |
| DE3807144A1 (en) * | 1987-03-12 | 1988-09-22 | Vaillant Joh Gmbh & Co | Electrically operated instantaneous water heater |
| US5020127A (en) * | 1987-10-23 | 1991-05-28 | Energy Saving Products Of Tennesse, Inc. | Tankless electric water heater |
| US5129034A (en) * | 1989-12-08 | 1992-07-07 | Leonard Sydenstricker | On-demand hot water system |
| WO1998016783A1 (en) * | 1996-10-11 | 1998-04-23 | Lufran Incorporated | Purged grounded immersion heater |
| US5875283A (en) * | 1996-10-11 | 1999-02-23 | Lufran Incorporated | Purged grounded immersion heater |
| WO2001054551A1 (en) * | 2000-01-24 | 2001-08-02 | Societe Des Produits Nestle S.A. | A liquid heating module, a system comprising said module and a process for heating liquid |
| US6424801B1 (en) * | 2001-05-02 | 2002-07-23 | Dynamo Aviation, Inc. | Upright cylindrical water heater with top and bottom can covers |
| GB2395899A (en) * | 2002-12-02 | 2004-06-09 | Michael Weir | Instant boiling water tap |
| US20040221585A1 (en) * | 2003-02-12 | 2004-11-11 | Abras Alexei D. | Heat exchanger for high purity and corrosive fluids |
| EP1669688A1 (en) * | 2003-08-05 | 2006-06-14 | Matsushita Electric Industrial Co., Ltd. | Fluid heating device and cleaning device using the same |
| US20070108304A1 (en) * | 2005-11-02 | 2007-05-17 | Eiji Seki | Hot water supply device |
| US20070274697A1 (en) * | 2004-02-05 | 2007-11-29 | Gusmer Machinery Group | Hybrid Heater |
| US20080066623A1 (en) * | 2004-07-07 | 2008-03-20 | Koninklijke Philips Electronics N. V. | Coffee Maker Comprising Means For Creating Turbulence In A Coffee Flow |
| US20080317450A1 (en) * | 2007-06-21 | 2008-12-25 | Nitta Moore Company | Piping structure of heating/heat-retaining tube |
| US20090034949A1 (en) * | 2007-07-30 | 2009-02-05 | Nitta Moore Company | Device having heating/heat-retaining tube |
| US20090159248A1 (en) * | 2007-12-21 | 2009-06-25 | Mimitz Sr Timothy E | Heat exchanger, heat exchanger tube and methods of making and using same |
| US7616873B1 (en) | 1990-05-10 | 2009-11-10 | Seitz David E | Thermo-plastic heat exchanger |
| WO2010055472A2 (en) * | 2008-11-14 | 2010-05-20 | Koninklijke Philips Electronics N.V. | Insert for a flow through heater |
| US20100199853A1 (en) * | 2007-09-07 | 2010-08-12 | Compagnie Mediterraneenne Des Cafes | Boiler for a machine for making hot beverages |
| EP2218374A2 (en) | 2007-10-04 | 2010-08-18 | Nestec S.A. | Integrated heater for a beverage preparation device |
| US20100303983A1 (en) * | 2009-05-29 | 2010-12-02 | Steve Martin Rodriguez | Beverage brewing system and method |
| DE102009024059A1 (en) * | 2009-06-05 | 2010-12-09 | Eichenauer Heizelemente Gmbh & Co. Kg | Flow heater, has embossments that are formed together with surface of casing tube of inner tubular heating element, where embossments are formed as semi-circular embossments along cross section planes of tubular heating element |
| US20110017449A1 (en) * | 2009-07-27 | 2011-01-27 | Berruti Alex J | System and method for enhanced oil recovery with a once-through steam generator |
| US20110036544A1 (en) * | 2003-12-10 | 2011-02-17 | Panasonic Corporation | Heat exchanger |
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| WO2016162895A1 (en) * | 2015-04-10 | 2016-10-13 | Iacobucci Hf Aerospace S.P.A. | Heating device |
| US9975402B2 (en) | 2011-09-06 | 2018-05-22 | Valeo Systemes Thermiques | Electrical heating device for a motor vehicle and vehicle and associated air-conditioning and/or heating unit |
| CN108332415A (en) * | 2017-01-07 | 2018-07-27 | B/E航空公司 | The polyphase circuit flow-through heater of device is manufactured for aerospace drink |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2228004A (en) * | 1939-09-27 | 1941-01-07 | S Q Ewing | Domestic electric water heater |
| US2686863A (en) * | 1951-08-07 | 1954-08-17 | Edward F Chandler | Fluid heating and circulating device |
| US2833909A (en) * | 1956-05-29 | 1958-05-06 | Gustave S Levey | Hose-type paint heater |
| US3286078A (en) * | 1964-04-06 | 1966-11-15 | Hynes Electric Heating Company | Flexible internal heater |
| US3523178A (en) * | 1968-05-10 | 1970-08-04 | Hill Shaw Co | Method and apparatus for heating liquids |
| US3584194A (en) * | 1969-05-23 | 1971-06-08 | Aro Corp | Fluid heating techniques |
-
1974
- 1974-03-07 US US44913774 patent/US3898428A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2228004A (en) * | 1939-09-27 | 1941-01-07 | S Q Ewing | Domestic electric water heater |
| US2686863A (en) * | 1951-08-07 | 1954-08-17 | Edward F Chandler | Fluid heating and circulating device |
| US2833909A (en) * | 1956-05-29 | 1958-05-06 | Gustave S Levey | Hose-type paint heater |
| US3286078A (en) * | 1964-04-06 | 1966-11-15 | Hynes Electric Heating Company | Flexible internal heater |
| US3523178A (en) * | 1968-05-10 | 1970-08-04 | Hill Shaw Co | Method and apparatus for heating liquids |
| US3584194A (en) * | 1969-05-23 | 1971-06-08 | Aro Corp | Fluid heating techniques |
Cited By (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199675A (en) * | 1977-06-23 | 1980-04-22 | Nordson Corporation | Electric fluid heater |
| US4185187A (en) * | 1977-08-17 | 1980-01-22 | Rogers David H | Electric water heating apparatus |
| US4261333A (en) * | 1979-12-03 | 1981-04-14 | Stephen Guarnaschelli | Solar heat exchanger |
| US4364754A (en) * | 1981-04-13 | 1982-12-21 | Century 21 Pollution Control, Inc. | Apparatus for separating foreign matter from a gas with a heat exchanger |
| EP0062691A1 (en) * | 1981-04-15 | 1982-10-20 | Elpag Ag Chur | Heat exchanger |
| US4468406A (en) * | 1981-05-20 | 1984-08-28 | Staar S.A. | Method for automatically brewing coffee and machine therefor |
| WO1983004465A1 (en) * | 1982-06-07 | 1983-12-22 | Graco Inc. | Electric fluid flow heater having precise temperature control |
| US4501952A (en) * | 1982-06-07 | 1985-02-26 | Graco Inc. | Electric fluid heater temperature control system providing precise control under varying conditions |
| US4661323A (en) * | 1985-04-08 | 1987-04-28 | Olesen Ole L | Radiating sleeve for catalytic reaction apparatus |
| FR2600855A1 (en) * | 1986-06-26 | 1987-12-31 | Electricite De France | ELECTRIC HEATING DEVICE HAVING A METAL SHEATH |
| EP0251891A1 (en) * | 1986-06-26 | 1988-01-07 | ELECTRICITE DE FRANCE Service National | Electrical heating device with a metal surround |
| DE3807144A1 (en) * | 1987-03-12 | 1988-09-22 | Vaillant Joh Gmbh & Co | Electrically operated instantaneous water heater |
| US5020127A (en) * | 1987-10-23 | 1991-05-28 | Energy Saving Products Of Tennesse, Inc. | Tankless electric water heater |
| US5129034A (en) * | 1989-12-08 | 1992-07-07 | Leonard Sydenstricker | On-demand hot water system |
| US7616873B1 (en) | 1990-05-10 | 2009-11-10 | Seitz David E | Thermo-plastic heat exchanger |
| US5875283A (en) * | 1996-10-11 | 1999-02-23 | Lufran Incorporated | Purged grounded immersion heater |
| WO1998016783A1 (en) * | 1996-10-11 | 1998-04-23 | Lufran Incorporated | Purged grounded immersion heater |
| CZ300739B6 (en) * | 2000-01-24 | 2009-07-29 | Societe Des Produits Nestle S. A. | Module for heating a liquid, process for heating a liquid in a system comprising such module, machine for the preparation of coffee and vending machine comprising the module |
| US6459854B1 (en) | 2000-01-24 | 2002-10-01 | Nestec S.A. | Process and module for heating liquid |
| WO2001054551A1 (en) * | 2000-01-24 | 2001-08-02 | Societe Des Produits Nestle S.A. | A liquid heating module, a system comprising said module and a process for heating liquid |
| US6424801B1 (en) * | 2001-05-02 | 2002-07-23 | Dynamo Aviation, Inc. | Upright cylindrical water heater with top and bottom can covers |
| GB2395899B (en) * | 2002-12-02 | 2005-02-09 | Michael Weir | Instant boiling water tap |
| GB2395899A (en) * | 2002-12-02 | 2004-06-09 | Michael Weir | Instant boiling water tap |
| US20040221585A1 (en) * | 2003-02-12 | 2004-11-11 | Abras Alexei D. | Heat exchanger for high purity and corrosive fluids |
| US7526922B2 (en) * | 2003-02-12 | 2009-05-05 | Applied Integrated Systems, Inc. | Heat exchanger for high purity and corrosive fluids |
| EP1669688A4 (en) * | 2003-08-05 | 2014-04-30 | Panasonic Corp | Fluid heating device and cleaning device using the same |
| EP1669688A1 (en) * | 2003-08-05 | 2006-06-14 | Matsushita Electric Industrial Co., Ltd. | Fluid heating device and cleaning device using the same |
| US8180207B2 (en) * | 2003-12-10 | 2012-05-15 | Panasonic Corporation | Heat exchanger |
| US20110036544A1 (en) * | 2003-12-10 | 2011-02-17 | Panasonic Corporation | Heat exchanger |
| US8249437B2 (en) | 2004-02-05 | 2012-08-21 | Graco Minnesota, Inc. | Hybrid heater |
| US20110038620A1 (en) * | 2004-02-05 | 2011-02-17 | Graco Minnesota, Inc. | Hybrid heater |
| US7822326B2 (en) * | 2004-02-05 | 2010-10-26 | Graco Minnesota, Inc. | Hybrid heater |
| US20070274697A1 (en) * | 2004-02-05 | 2007-11-29 | Gusmer Machinery Group | Hybrid Heater |
| US20080066623A1 (en) * | 2004-07-07 | 2008-03-20 | Koninklijke Philips Electronics N. V. | Coffee Maker Comprising Means For Creating Turbulence In A Coffee Flow |
| US20070108304A1 (en) * | 2005-11-02 | 2007-05-17 | Eiji Seki | Hot water supply device |
| US20080317450A1 (en) * | 2007-06-21 | 2008-12-25 | Nitta Moore Company | Piping structure of heating/heat-retaining tube |
| US20090034949A1 (en) * | 2007-07-30 | 2009-02-05 | Nitta Moore Company | Device having heating/heat-retaining tube |
| US8238733B2 (en) | 2007-07-30 | 2012-08-07 | Nitta Corporation | Device having heating/heat-retaining tube |
| US20100199853A1 (en) * | 2007-09-07 | 2010-08-12 | Compagnie Mediterraneenne Des Cafes | Boiler for a machine for making hot beverages |
| US8607694B2 (en) * | 2007-09-07 | 2013-12-17 | Compagnie Mediterraneenne Des Cafes (Sa) | Boiler for a machine for making hot beverages |
| EP2218374A2 (en) | 2007-10-04 | 2010-08-18 | Nestec S.A. | Integrated heater for a beverage preparation device |
| EP2218374B1 (en) | 2007-10-04 | 2017-12-27 | Nestec S.A. | Integrated heater for a beverage preparation device |
| US20090159248A1 (en) * | 2007-12-21 | 2009-06-25 | Mimitz Sr Timothy E | Heat exchanger, heat exchanger tube and methods of making and using same |
| WO2010055472A2 (en) * | 2008-11-14 | 2010-05-20 | Koninklijke Philips Electronics N.V. | Insert for a flow through heater |
| WO2010055472A3 (en) * | 2008-11-14 | 2013-01-10 | Koninklijke Philips Electronics N.V. | Insert for a flow through heater |
| CN102317703A (en) * | 2008-11-14 | 2012-01-11 | 皇家飞利浦电子股份有限公司 | Insert for a flow through heater |
| US9241594B2 (en) | 2009-05-29 | 2016-01-26 | Enflite, Inc. | Beverage brewing system and method |
| US20100303983A1 (en) * | 2009-05-29 | 2010-12-02 | Steve Martin Rodriguez | Beverage brewing system and method |
| DE102009024059A1 (en) * | 2009-06-05 | 2010-12-09 | Eichenauer Heizelemente Gmbh & Co. Kg | Flow heater, has embossments that are formed together with surface of casing tube of inner tubular heating element, where embossments are formed as semi-circular embossments along cross section planes of tubular heating element |
| US20110017449A1 (en) * | 2009-07-27 | 2011-01-27 | Berruti Alex J | System and method for enhanced oil recovery with a once-through steam generator |
| US8631871B2 (en) | 2009-07-27 | 2014-01-21 | Innovative Steam Technologies Inc. | System and method for enhanced oil recovery with a once-through steam generator |
| US10368689B2 (en) * | 2010-07-16 | 2019-08-06 | Societe Des Produits Nestle S.A. | Advanced heating device |
| US20130118359A1 (en) * | 2010-07-16 | 2013-05-16 | Nestec S.A. | Advanced heating device |
| US20140093225A1 (en) * | 2011-02-21 | 2014-04-03 | Strix Limited | Electrical water heating appliances |
| US20140355966A1 (en) * | 2011-09-06 | 2014-12-04 | Valeo Systemes Thermiques | Electrical Heating Device For A Motor Vehicle And Vehicle And Associated Air-Conditioning And/Or Heating Unit |
| US9975402B2 (en) | 2011-09-06 | 2018-05-22 | Valeo Systemes Thermiques | Electrical heating device for a motor vehicle and vehicle and associated air-conditioning and/or heating unit |
| CN106659327A (en) * | 2014-07-03 | 2017-05-10 | Be航天公司 | Multi-phase circuit flow-through heater for aerospace beverage maker |
| US10524611B2 (en) | 2014-07-03 | 2020-01-07 | B/E Aerospace, Inc. | Multi-phase circuit flow-through heater for aerospace beverage maker |
| WO2016004298A1 (en) * | 2014-07-03 | 2016-01-07 | B/E Aerospace, Inc. | Multi-phase circuit flow-through heater for aerospace beverage maker |
| WO2016162895A1 (en) * | 2015-04-10 | 2016-10-13 | Iacobucci Hf Aerospace S.P.A. | Heating device |
| US10772462B2 (en) | 2015-04-10 | 2020-09-15 | Iacobucci Hf Aerospace S.P.A. | Heating device |
| EP3366173A3 (en) * | 2017-01-07 | 2018-11-14 | B/E Aerospace, Inc. | Multi-phase circuit flow-through heater for aerospace beverage maker |
| CN108332415A (en) * | 2017-01-07 | 2018-07-27 | B/E航空公司 | The polyphase circuit flow-through heater of device is manufactured for aerospace drink |
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