CA932009A - Thermostatless blanket control circuit - Google Patents

Thermostatless blanket control circuit

Info

Publication number
CA932009A
CA932009A CA147919A CA147919A CA932009A CA 932009 A CA932009 A CA 932009A CA 147919 A CA147919 A CA 147919A CA 147919 A CA147919 A CA 147919A CA 932009 A CA932009 A CA 932009A
Authority
CA
Canada
Prior art keywords
thermostatless
control circuit
blanket control
blanket
circuit
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
Application number
CA147919A
Other versions
CA147919S (en
Inventor
C. Crowley George
S. Carlson Gordon
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co 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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Application granted granted Critical
Publication of CA932009A publication Critical patent/CA932009A/en
Expired 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • 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
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
    • H02H5/043—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors the temperature dependent resistor being disposed parallel to a heating wire, e.g. in a heating blanket
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Textile Engineering (AREA)
  • Control Of Resistance Heating (AREA)
CA147919A 1971-10-26 1972-07-25 Thermostatless blanket control circuit Expired CA932009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19218171A 1971-10-26 1971-10-26

Publications (1)

Publication Number Publication Date
CA932009A true CA932009A (en) 1973-08-14

Family

ID=22708595

Family Applications (1)

Application Number Title Priority Date Filing Date
CA147919A Expired CA932009A (en) 1971-10-26 1972-07-25 Thermostatless blanket control circuit

Country Status (5)

Country Link
US (1) US3673381A (en)
JP (1) JPS4850241A (en)
AU (1) AU4531672A (en)
CA (1) CA932009A (en)
GB (1) GB1403044A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034185A (en) * 1975-09-02 1977-07-05 Northern Electric Company Electric blanket control circuit
GB1601126A (en) * 1977-10-11 1981-10-28 Dreamland Electrical Appliance Heating circuits
US4281237A (en) * 1979-03-05 1981-07-28 Sunbeam Corporation Safety circuit for electric bedcover
US4436986A (en) * 1981-11-23 1984-03-13 Sunbeam Corporation Electric blanket safety circuit
US10136735B2 (en) 2014-11-19 2018-11-27 Polygroup Macau Limited (Bvi) Systems and methods for air mattress temperature control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL121571C (en) * 1964-05-06 1966-07-15 Van Der Heem N.V. DEVICE FOR ELECTRICAL HEATING OF AN OBJECT
JPS447389Y1 (en) * 1965-08-30 1969-03-20
US3445631A (en) * 1966-03-14 1969-05-20 Indoheem Nv Safety system for an electrically heated blanket
US3356825A (en) * 1966-07-18 1967-12-05 Fieldcrest Mills Inc Electrically heated bedcover and protective circuit

Also Published As

Publication number Publication date
US3673381A (en) 1972-06-27
JPS4850241A (en) 1973-07-16
AU4531672A (en) 1974-02-07
GB1403044A (en) 1975-08-13

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