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GB2007877A - Electric hairdrier - Google Patents

Electric hairdrier

Info

Publication number
GB2007877A
GB2007877A GB7840965A GB7840965A GB2007877A GB 2007877 A GB2007877 A GB 2007877A GB 7840965 A GB7840965 A GB 7840965A GB 7840965 A GB7840965 A GB 7840965A GB 2007877 A GB2007877 A GB 2007877A
Authority
GB
United Kingdom
Prior art keywords
temperature
air
hairdrier
electric
air flow
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
GB7840965A
Other versions
GB2007877B (en
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 GB2007877A publication Critical patent/GB2007877A/en
Application granted granted Critical
Publication of GB2007877B publication Critical patent/GB2007877B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
    • A45D20/30—Electric circuitry specially adapted for hair drying devices
    • 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
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Cleaning And Drying Hair (AREA)

Abstract

In an electric hairdrier in which a heating resistor (22) arranged in the air flow from a blower motor (15) is controlled by an electronic regulating device (23), the temperature of the emerging air is manually settable. In normal operation the outlet air temperature as measured by a sensor (33) remains constant at a value determined by the setting element (32), independently of the rate of air flow. However, in the event of disturbance variable occurring at the air outlet, the resulting excess of measured over desired temperature is arranged to operate a no-voltage circuit breaker (25) whose effect is to lower the effectively commanded temperature. <IMAGE>
GB7840965A 1977-11-19 1978-10-18 Electric hairdrier Expired GB2007877B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2751833A DE2751833C3 (en) 1977-11-19 1977-11-19 Electric hairdryer with blower and heater

Publications (2)

Publication Number Publication Date
GB2007877A true GB2007877A (en) 1979-05-23
GB2007877B GB2007877B (en) 1982-06-09

Family

ID=6024175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7840965A Expired GB2007877B (en) 1977-11-19 1978-10-18 Electric hairdrier

Country Status (5)

Country Link
JP (1) JPS54110059A (en)
DE (1) DE2751833C3 (en)
FR (1) FR2409024A1 (en)
GB (1) GB2007877B (en)
IE (1) IE47893B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035655A2 (en) * 1980-03-11 1981-09-16 Braun Aktiengesellschaft Coupling electrical or electronic switching elements and constructional components in hair driers
US4327278A (en) * 1979-09-10 1982-04-27 Conair Corporation Simplified multiple speed hair dryer
US4591699A (en) * 1980-10-31 1986-05-27 Aisan Kogyo Kabushiki Kaisha Control circuit for an electrically heated bimetal actuated automatic choke valve
EP0518035A2 (en) * 1991-06-09 1992-12-16 Braun Aktiengesellschaft Hair-dryer
WO1995031915A1 (en) * 1994-05-20 1995-11-30 Pifco Limited A hairdryer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830535A1 (en) * 1978-07-12 1980-01-24 Braun Ag Hand-held hair dryer mechanism - has output regulator in handle controlling current to electronic components in removable fitments
FR2490469A1 (en) * 1980-09-22 1982-03-26 Bristol Myers Co Temperature controlled hand held hair dryer - has thermistor detecting temp. of reflected hot air to regulate heat output
DE3103457A1 (en) * 1981-02-02 1982-08-26 Braun Ag, 6000 Frankfurt MULTIPLE FUNCTION SWITCH FOR ELECTRICAL DEVICES LIKE HAIR DRYERS OR THE LIKE
DE3708610C2 (en) * 1987-03-17 2000-02-10 Eaton Corp Method and device for regulating the temperature of an electrical heating device
CN108514205B (en) * 2018-06-06 2023-12-19 昆明理工大学津桥学院 Low-cost constant temperature circuit of electric hair drier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE526415C (en) * 1928-11-25 1931-06-05 Robert Bosch Akt Ges Electric curling tongs with a heat switch and a heating element built into the heating arm
DE1757900A1 (en) * 1967-08-21 1970-03-26 Alfred Mueller Hood dryer
US3689736A (en) * 1971-01-25 1972-09-05 Texas Instruments Inc Electrically heated device employing conductive-crystalline polymers
SE346064B (en) * 1971-02-08 1972-06-26 S Janson
GB1294808A (en) * 1971-08-19 1972-11-01 Philips Electronic Associated Temperature-controlled gas humidifier for a medical ventilator
DE2506074A1 (en) * 1975-02-13 1976-08-26 Braun Ag Temp control for hairdressing curlers etc - has curler resistance element heated by AC via double pole thyristor or triac
DE2535853B2 (en) * 1975-08-12 1977-09-08 Braun Ag, 6000 Frankfurt FAN UNIT, IN PARTICULAR HOT-AIR SHOWER
US4003388A (en) * 1976-04-01 1977-01-18 General Electric Company Hair dryer variable control
DE2616223A1 (en) * 1976-04-13 1977-11-03 Trumpf Fertigparkett Gmbh & Co Filling and flatting machine using wood pulp and varnish mixtures - has cylindrical container with flatting knives pressed against work piece

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327278A (en) * 1979-09-10 1982-04-27 Conair Corporation Simplified multiple speed hair dryer
EP0035655A2 (en) * 1980-03-11 1981-09-16 Braun Aktiengesellschaft Coupling electrical or electronic switching elements and constructional components in hair driers
EP0035655A3 (en) * 1980-03-11 1983-06-29 Braun Aktiengesellschaft Electrical hair treatment apparatus with blower and heater
US4591699A (en) * 1980-10-31 1986-05-27 Aisan Kogyo Kabushiki Kaisha Control circuit for an electrically heated bimetal actuated automatic choke valve
EP0518035A2 (en) * 1991-06-09 1992-12-16 Braun Aktiengesellschaft Hair-dryer
EP0518035A3 (en) * 1991-06-09 1993-01-07 Braun Aktiengesellschaft Hair-dryer
WO1995031915A1 (en) * 1994-05-20 1995-11-30 Pifco Limited A hairdryer

Also Published As

Publication number Publication date
FR2409024A1 (en) 1979-06-15
DE2751833A1 (en) 1979-05-23
GB2007877B (en) 1982-06-09
FR2409024B1 (en) 1983-09-23
DE2751833B2 (en) 1980-05-29
IE782233L (en) 1979-05-19
JPS54110059A (en) 1979-08-29
DE2751833C3 (en) 1989-03-16
IE47893B1 (en) 1984-07-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee