GB1281861A - Electrical heating apparatus - Google Patents

Electrical heating apparatus

Info

Publication number
GB1281861A
GB1281861A GB3001/70A GB300170A GB1281861A GB 1281861 A GB1281861 A GB 1281861A GB 3001/70 A GB3001/70 A GB 3001/70A GB 300170 A GB300170 A GB 300170A GB 1281861 A GB1281861 A GB 1281861A
Authority
GB
United Kingdom
Prior art keywords
conductors
elements
heating
less
diameter
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
GB3001/70A
Inventor
George Horn Smillie
Frank Johnstone
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.)
TRONAPPLICS Ltd
Original Assignee
TRONAPPLICS 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 TRONAPPLICS Ltd filed Critical TRONAPPLICS Ltd
Priority to GB3001/70A priority Critical patent/GB1281861A/en
Priority to CA102660A priority patent/CA930004A/en
Priority to IL36005A priority patent/IL36005A/en
Priority to US00106957A priority patent/US3708650A/en
Priority to ZA710340A priority patent/ZA71340B/en
Priority to SE00579/71A priority patent/SE363020B/xx
Priority to BE761803A priority patent/BE761803A/en
Priority to CH87971A priority patent/CH526898A/en
Priority to NL7100744A priority patent/NL7100744A/xx
Priority to ES387456A priority patent/ES387456A1/en
Publication of GB1281861A publication Critical patent/GB1281861A/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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Thermal Sciences (AREA)
  • Control Of Resistance Heating (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • General Induction Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)
  • Furnace Details (AREA)

Abstract

1281861 Electric heating TRONAPPLICS Ltd 21 Jan 1970 3001/70 Addition to 1270250 Heading H5H [Also in Division G3] In an arrangement as described in the parent Specification in which a heating apparatus comprises at least two elements fed with pulses of opposite polarity and alternating in time, the elements are of elongated form wound with resistive wire of diameter 0À015 inch diameter or less, or non-circular conductors of equivalent cross-sectional area, and preferably 0À0076 inch or less or equivalent. Each element may comprise a number of conductors in parallel. Where used for liquid heating, elements may be embedded in refractory, fibrous mineral, or particulate mineral material. Where for air heating elements may be disposed in a duct with a fan passing air downwardly at a rate to prevent the elements glowing red, and with a thermal cut-out to sense hot air rising if the fan fails. A heating element may comprise a plurality of conductors arranged in open helical coils supported by rods 24 of heat insulating material carrying perforated spaced discs 26, the rods being held by nuts 36 to board 34. Terminals 30, 32 &c. are provided and may be connected by conductors of printed circuit type. It is considered that the downstream surface of small diameter conductors dissipate heat more effectively because there may be less tendency for air flowing to break away; if there is break away then the close proximity of down and up stream sides will permit sufficient conduction of heat from one to the other surface.
GB3001/70A 1970-01-21 1970-01-21 Electrical heating apparatus Expired GB1281861A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB3001/70A GB1281861A (en) 1970-01-21 1970-01-21 Electrical heating apparatus
CA102660A CA930004A (en) 1970-01-21 1971-01-13 Electrical heating apparatus
IL36005A IL36005A (en) 1970-01-21 1971-01-15 Electrical heating apparatus
US00106957A US3708650A (en) 1970-01-21 1971-01-18 Electrical heating apparatus
ZA710340A ZA71340B (en) 1970-01-21 1971-01-19 Electrical heating apparatus
SE00579/71A SE363020B (en) 1970-01-21 1971-01-19
BE761803A BE761803A (en) 1970-01-21 1971-01-20 ELECTRICAL HEATING APPLIANCE
CH87971A CH526898A (en) 1970-01-21 1971-01-20 Electric heater
NL7100744A NL7100744A (en) 1970-01-21 1971-01-20
ES387456A ES387456A1 (en) 1970-01-21 1971-01-20 Electrical heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3001/70A GB1281861A (en) 1970-01-21 1970-01-21 Electrical heating apparatus

Publications (1)

Publication Number Publication Date
GB1281861A true GB1281861A (en) 1972-07-19

Family

ID=9750084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3001/70A Expired GB1281861A (en) 1970-01-21 1970-01-21 Electrical heating apparatus

Country Status (10)

Country Link
US (1) US3708650A (en)
BE (1) BE761803A (en)
CA (1) CA930004A (en)
CH (1) CH526898A (en)
ES (1) ES387456A1 (en)
GB (1) GB1281861A (en)
IL (1) IL36005A (en)
NL (1) NL7100744A (en)
SE (1) SE363020B (en)
ZA (1) ZA71340B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153555A (en) * 1984-01-26 1985-08-21 Thorn Emi Domestic Appliances Temperature control of heating apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657514A (en) * 1970-06-03 1972-04-18 Goodrich Co B F Electrical deicer for aircraft propeller
US4085309A (en) * 1975-06-04 1978-04-18 Sperry Rand Corporation Control circuit arrangement for a portable electrically heated hair treatment appliance
US5352862A (en) * 1992-11-09 1994-10-04 Five Star Manufacturing Company High wattage surface contact resistance heater
DE29912543U1 (en) 1999-07-17 1999-12-16 Berghütten GmbH, 63128 Dietzenbach Heating element, especially for industrial furnaces
EP1351259A1 (en) * 2002-02-13 2003-10-08 Amerigo Barbieri Resistor
CN102695925B (en) * 2009-11-17 2015-02-04 熊津豪威株式会社 Method and apparatus for supplying hot water by controlling the number of pulses applied to a heater

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638236A (en) * 1898-06-01 1899-12-05 Edward E Gold Electric heater.
US1217229A (en) * 1915-12-03 1917-02-27 Peter Smith Heater Company Electric air-heating system.
US3180999A (en) * 1961-03-24 1965-04-27 Tung Sol Electric Inc Circuit for controlling alternating currents
US3335319A (en) * 1965-02-19 1967-08-08 Louis A Warner Control circuit
FR1554838A (en) * 1967-12-06 1969-01-24
US3597590A (en) * 1969-02-12 1971-08-03 Northern Electric Co Electric blanket control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153555A (en) * 1984-01-26 1985-08-21 Thorn Emi Domestic Appliances Temperature control of heating apparatus

Also Published As

Publication number Publication date
IL36005A0 (en) 1971-03-24
SE363020B (en) 1973-12-27
ZA71340B (en) 1971-10-27
NL7100744A (en) 1971-07-23
CA930004A (en) 1973-07-10
CH526898A (en) 1972-08-15
BE761803A (en) 1971-07-01
IL36005A (en) 1973-08-29
ES387456A1 (en) 1973-12-16
US3708650A (en) 1973-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee