CA2243797A1 - Water heater with proportional band temperature control for improved thermal efficiency - Google Patents

Water heater with proportional band temperature control for improved thermal efficiency

Info

Publication number
CA2243797A1
CA2243797A1 CA 2243797 CA2243797A CA2243797A1 CA 2243797 A1 CA2243797 A1 CA 2243797A1 CA 2243797 CA2243797 CA 2243797 CA 2243797 A CA2243797 A CA 2243797A CA 2243797 A1 CA2243797 A1 CA 2243797A1
Authority
CA
Canada
Prior art keywords
water heater
proportional band
temperature control
thermal efficiency
band 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.)
Granted
Application number
CA 2243797
Other languages
French (fr)
Other versions
CA2243797C (en
Inventor
Kenneth A. Bradenbaugh
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.)
AOS Holding Co
Original Assignee
Kenneth A. Bradenbaugh
Aos Holding Company
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
Priority claimed from US08/914,638 external-priority patent/US5831250A/en
Application filed by Kenneth A. Bradenbaugh, Aos Holding Company filed Critical Kenneth A. Bradenbaugh
Publication of CA2243797A1 publication Critical patent/CA2243797A1/en
Application granted granted Critical
Publication of CA2243797C publication Critical patent/CA2243797C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H05B1/0213—Switches using bimetallic elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters

Landscapes

  • Control Of Resistance Heating (AREA)
  • Control Of Temperature (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Cookers (AREA)

Abstract

A water heater having a water tank and a electric resistance heating element extending into the water tank for heating water in the tank. The water heater includes a proportional band temperature controller for conducting electric power to the electric resistance heating element in bursts. Each burst of electric power is followed by a period during which the temperature controller does not conduct power to the electric resistance heating element. In one embodiment, each burst of electrical power lasts for about 95% or less of a cycle comprised of one burst of electric power followed by the period during which the temperature controller does not conduct electric power.
CA 2243797 1997-08-19 1998-07-24 Water heater with proportional band temperature control for improved thermal efficiency Expired - Fee Related CA2243797C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/914,638 1997-08-19
US08/914,638 US5831250A (en) 1997-08-19 1997-08-19 Proportional band temperature control with improved thermal efficiency for a water heater
US09/118,720 US5948304A (en) 1997-08-19 1998-07-17 Water heater with proportional band temperature control for improved thermal efficiency
US09/118,720 1998-07-17

Publications (2)

Publication Number Publication Date
CA2243797A1 true CA2243797A1 (en) 1999-02-19
CA2243797C CA2243797C (en) 2005-12-06

Family

ID=26816674

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2243797 Expired - Fee Related CA2243797C (en) 1997-08-19 1998-07-24 Water heater with proportional band temperature control for improved thermal efficiency

Country Status (8)

Country Link
EP (1) EP1005784B1 (en)
JP (1) JP2001518600A (en)
CN (1) CN1219416C (en)
AU (1) AU8686598A (en)
BR (1) BR9811322A (en)
CA (1) CA2243797C (en)
DE (1) DE69823036T2 (en)
WO (1) WO1999009789A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363216B1 (en) * 1999-07-27 2002-03-26 Kenneth A. Bradenbaugh Water heater having dual side-by-side heating elements
JP5852774B2 (en) * 2010-07-14 2016-02-03 株式会社堀場エステック Liquid sample heating vaporizer
WO2012040585A2 (en) * 2010-09-23 2012-03-29 Downey Jonathan B Adaptive thermal regulator
CN109497828B (en) * 2018-11-21 2022-07-05 浙江绍兴苏泊尔生活电器有限公司 Temperature control method and device of electric kettle and electric kettle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633094A (en) * 1970-04-15 1972-01-04 Barber Colman Co Burst length proportioning controller
US3878358A (en) * 1972-11-16 1975-04-15 Xerox Corp Digital power control
NL7610563A (en) * 1976-09-22 1978-03-29 Thorn Domestic Appliances Ltd AIR DRYER.
GB2148467B (en) * 1983-10-18 1988-04-13 Gainsborough Electrical Water heaters
US4978833A (en) * 1989-01-27 1990-12-18 Bunn-O-Matic Corporation Hot water dispenser having improved water temperature control system

Also Published As

Publication number Publication date
WO1999009789A1 (en) 1999-02-25
AU8686598A (en) 1999-03-08
JP2001518600A (en) 2001-10-16
DE69823036T2 (en) 2005-03-10
EP1005784A4 (en) 2002-10-09
EP1005784A1 (en) 2000-06-07
CN1267446A (en) 2000-09-20
DE69823036D1 (en) 2004-05-13
EP1005784B1 (en) 2004-04-07
BR9811322A (en) 2001-10-16
CN1219416C (en) 2005-09-14
CA2243797C (en) 2005-12-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150724