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GB2007879A - Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits - Google Patents

Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits

Info

Publication number
GB2007879A
GB2007879A GB7835649A GB7835649A GB2007879A GB 2007879 A GB2007879 A GB 2007879A GB 7835649 A GB7835649 A GB 7835649A GB 7835649 A GB7835649 A GB 7835649A GB 2007879 A GB2007879 A GB 2007879A
Authority
GB
United Kingdom
Prior art keywords
control switch
simultaneous operation
smoothing iron
heating circuits
ensure
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.)
Withdrawn
Application number
GB7835649A
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Publication of GB2007879A publication Critical patent/GB2007879A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
    • G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/26—Temperature control or indicating arrangements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Control Of Resistance Heating (AREA)
  • Power Conversion In General (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

A smoothing iron having two separately controlled heating elements (2,3) is provided with respective controls (11,12) associated with means (10) to ensure that the heating elements are switched on and off by respective triacs (4,5) only at zero transitions of the A.C. supply waveform. The respective controls (11,12) are each provided with devices (15,16) which ensure that each element remains in the 'on' state for at least one half period of the A.C. supply waveform and preferably for at least a whole period.The devices (15,16) are flip-flops. <IMAGE>
GB7835649A 1977-11-07 1978-09-05 Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits Withdrawn GB2007879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772749766 DE2749766A1 (en) 1977-11-07 1977-11-07 IRON WITH ONE CONTROL CIRCUIT FOR THE SIMULTANEOUS OPERATION OF AT LEAST TWO CONTROL CIRCUITS

Publications (1)

Publication Number Publication Date
GB2007879A true GB2007879A (en) 1979-05-23

Family

ID=6023199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835649A Withdrawn GB2007879A (en) 1977-11-07 1978-09-05 Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits

Country Status (5)

Country Link
DE (1) DE2749766A1 (en)
ES (1) ES474839A1 (en)
FR (1) FR2408006A1 (en)
GB (1) GB2007879A (en)
NL (1) NL7811069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207261A (en) * 1987-06-16 1989-01-25 South Of Scotland Electricity Temperature control circuit
WO1999024886A1 (en) * 1997-11-07 1999-05-20 Shell Oil Company Heater control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002029A1 (en) * 1994-07-07 1996-01-25 Honeywell Inc. Trim heater controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207261A (en) * 1987-06-16 1989-01-25 South Of Scotland Electricity Temperature control circuit
GB2207261B (en) * 1987-06-16 1992-01-08 South Of Scotland Electricity Temperature control circuit
WO1999024886A1 (en) * 1997-11-07 1999-05-20 Shell Oil Company Heater control

Also Published As

Publication number Publication date
DE2749766A1 (en) 1979-05-10
NL7811069A (en) 1979-05-09
FR2408006A1 (en) 1979-06-01
ES474839A1 (en) 1979-03-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)