AU2001257918A1 - Indicator for liquid heating appliances - Google Patents

Indicator for liquid heating appliances

Info

Publication number
AU2001257918A1
AU2001257918A1 AU2001257918A AU5791801A AU2001257918A1 AU 2001257918 A1 AU2001257918 A1 AU 2001257918A1 AU 2001257918 A AU2001257918 A AU 2001257918A AU 5791801 A AU5791801 A AU 5791801A AU 2001257918 A1 AU2001257918 A1 AU 2001257918A1
Authority
AU
Australia
Prior art keywords
heating element
vessel
ptcr
appliance
series
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.)
Abandoned
Application number
AU2001257918A
Inventor
Robert Andrew O'neill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otter Controls Ltd
Original Assignee
Otter Controls Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Otter Controls Ltd filed Critical Otter Controls Ltd
Publication of AU2001257918A1 publication Critical patent/AU2001257918A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/212—Water-boiling vessels, e.g. kettles with signaling means, e.g. whistling kettles

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Control Of Resistance Heating (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

A liquid heating device, such as a kettle or hot water jug, having visual temperature indication means in the form of a series of light emitters which are arranged to be lit progressively as liquid is heated in the appliance. The appliance is provided with a thick film heating element having positive temperature coefficient resistor (PTCR) portions which develop varying voltages as the heating element heats up in use, and these voltages are used to trigger the operation of respective diodes of an LED array so that the array lights up progressively as the temperature rises. The LEDs range in colour from green (cold) through yellow/orange (warm) to red (hot) and can illuminate a sight glass of the vessel or the vessel contents in which case the vessel wall has at least a portion which is transparent or translucent. The main heating element of the device may be in series (as shown) or in parallel (Figure 2) with a parallel arrangement of PTCR's and associated fixed resistors.
AU2001257918A 2000-02-03 2001-01-31 Indicator for liquid heating appliances Abandoned AU2001257918A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0002488 2000-02-03
GB0002488A GB2358788B (en) 2000-02-03 2000-02-03 Liquid heating appliances with progressive temperature indicator
PCT/GB2001/000392 WO2001056438A1 (en) 2000-02-03 2001-01-31 Indicator for liquid heating appliances

Publications (1)

Publication Number Publication Date
AU2001257918A1 true AU2001257918A1 (en) 2001-08-14

Family

ID=9884898

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001257918A Abandoned AU2001257918A1 (en) 2000-02-03 2001-01-31 Indicator for liquid heating appliances

Country Status (7)

Country Link
EP (1) EP1255477B1 (en)
CN (1) CN1200633C (en)
AT (1) ATE257665T1 (en)
AU (1) AU2001257918A1 (en)
DE (1) DE60101783T2 (en)
GB (1) GB2358788B (en)
WO (1) WO2001056438A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HK1069274A2 (en) * 2004-05-21 2005-05-06 Euro Suisse Internat Ltd Electric kettle having led temperature indication through water.
DE102005006720A1 (en) * 2005-02-04 2006-08-10 Eldora Gmbh Device for heating a liquid, in particular a kettle
EP2119967B1 (en) * 2008-05-17 2015-07-01 Electrolux Home Products Corporation N.V. A cooking oven with an illumination-equipment for a cavity and a method for illuminating a cavity of a cooking oven
FR2974716A1 (en) * 2011-05-06 2012-11-09 Seb Sa BOX AND ELECTRIC VAPOR COOKER HAVING SEVERAL COOKING PROGRAMS
CN106027023A (en) * 2016-05-10 2016-10-12 中国船舶重工集团公司第七〇九研究所 Voltage division circuit outputting constant impedance

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE851055L (en) * 1985-10-25 1987-04-25 Walton Philip Wilson Apparatus for indicating the quantity of thermal energy in a¹fluid in a tank
AU6635886A (en) * 1985-12-09 1987-06-11 Otter Controls Ltd. Heating element control
NL8700806A (en) * 1987-04-06 1988-11-01 Daalderop Bv DEVICE FOR MEASURING THE HEAT CONTENT OF A LIQUID-FILLED RESERVOIR.
AU633042B2 (en) * 1989-01-26 1993-01-21 Otter Controls Limited Controls for electrically powered heating elements
DE3904859A1 (en) * 1989-02-17 1990-08-23 Krups Stiftung Electrically operated appliance for preparing hot beverages, such as coffee, tea or the like
US4994792A (en) * 1989-12-06 1991-02-19 Ziegler Jr Eldon W Fluid temperature monitoring system
GB2311716A (en) * 1996-04-04 1997-10-08 Kambrook Distributing Pty Kettle with visual indicator reactive to temperature
DE19652829B4 (en) * 1996-04-19 2008-04-30 BSH Bosch und Siemens Hausgeräte GmbH Kettle with operating display
GB2332522A (en) * 1997-11-27 1999-06-23 Otter Controls Ltd Liquid level indication device
EP1064825B1 (en) * 1998-03-17 2005-02-02 Strix Limited Thermally sensitive controls
GB2337194B (en) * 1998-05-13 2002-08-07 Otter Controls Ltd Improvements relating to electrically heated water boiling vessels
GB9910184D0 (en) * 1999-05-04 1999-06-30 Davies Stephen J D Liquid holding units

Also Published As

Publication number Publication date
WO2001056438A1 (en) 2001-08-09
DE60101783T2 (en) 2004-12-02
ATE257665T1 (en) 2004-01-15
DE60101783D1 (en) 2004-02-19
GB0002488D0 (en) 2000-03-29
CN1200633C (en) 2005-05-11
EP1255477B1 (en) 2004-01-14
GB2358788B (en) 2003-04-23
EP1255477A1 (en) 2002-11-13
CN1422132A (en) 2003-06-04
GB2358788A (en) 2001-08-08

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