GB1333345A - Immersion heater - Google Patents

Immersion heater

Info

Publication number
GB1333345A
GB1333345A GB1987572A GB1987572A GB1333345A GB 1333345 A GB1333345 A GB 1333345A GB 1987572 A GB1987572 A GB 1987572A GB 1987572 A GB1987572 A GB 1987572A GB 1333345 A GB1333345 A GB 1333345A
Authority
GB
United Kingdom
Prior art keywords
thyristor
contact thermometer
diac
current
heater
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
GB1987572A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1333345A publication Critical patent/GB1333345A/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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/80—Portable immersion heaters
    • 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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
    • 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)
  • Control Of Temperature (AREA)
  • Control Of Resistance Heating (AREA)
  • General Induction Heating (AREA)

Abstract

1333345 Automatic control of temperature K GASS ERB 28 April 1972 [28 April 1971] 19875/72 Heading G3R [ Also in Division B1] An immersion heater 2 in a mixing device (see Figs. 1-8, not shown, and Division B1) is supplied with current through a diac 17 which triggers an alternating current thyristor 19. At a predetermined temperature the circuit to diac 17 is interrupted by a contact thermometer 7 whereby the thyristor 19 blocks passage of current to the heater, should the contact thermometer 7 fail, another 7' closes at a higher predetermined temperature whereby the voltage applied to diac 17 becomes insufficient and the heating circuit is interrupted. Simultaneously a tube 22 triggers thyristor 23, so that if thyristor 19 has become permanently interconnected, a resistance 24 heats up and melts an adjacent fuse wire 25, which alsocan be arranged to melt by direct heat from the treated liquid. In a modification the induction coil 11 of the mixing device is in series with the heater 2 and the contact thermometer 7 is replaced by a thermistor, see Fig. 10, (not shown). In another Fig.11 (not shown) in which the phase cutting angle is negligible to eliminate radio interference, the thyristor 19 is always inter-connected and the contact thermometer 7' is also replaced by a thermistor the regulating resistance (33) of which is in tandem with that (29) of the heating current circuit. In yet another, (Fig. 12, (not shown) a conjunction transistor (40) is used as trigger for a thyristor (27).
GB1987572A 1971-04-28 1972-04-28 Immersion heater Expired GB1333345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT368071A AT312760B (en) 1971-04-28 1971-04-28 Immersion heater

Publications (1)

Publication Number Publication Date
GB1333345A true GB1333345A (en) 1973-10-10

Family

ID=3553892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1987572A Expired GB1333345A (en) 1971-04-28 1972-04-28 Immersion heater

Country Status (9)

Country Link
US (1) US3766358A (en)
AT (1) AT312760B (en)
CH (1) CH542566A (en)
DD (1) DD95895A5 (en)
DE (1) DE2218808A1 (en)
ES (1) ES402184A1 (en)
FR (1) FR2134691B1 (en)
GB (1) GB1333345A (en)
IT (1) IT954905B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433847A (en) * 2005-12-29 2007-07-04 Tyco Electronics Heat operated electrical isolator

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103319A (en) * 1977-06-27 1978-07-25 Radiant Technology Corporation Hazard prevention circuit for immersion heaters
US4278873A (en) * 1980-02-04 1981-07-14 General Electric Company Temperature-responsive control means
AT412333B (en) * 2003-01-15 2005-01-25 Pewag Austria Gmbh Snow chain
US7892478B2 (en) * 2004-04-19 2011-02-22 Boston Scientific Scimed, Inc. Catheter balloon mold form and molding process
DE102005038994B4 (en) * 2005-08-16 2009-11-12 Drescher, Rüdiger tempering
DE102007006334B4 (en) * 2007-02-08 2009-10-01 Mars Inc. Apparatus and method for inductive heating of a material
US9234678B1 (en) * 2011-09-27 2016-01-12 Rheem Manufacturing Company Stackable water heater apparatus
USD1020120S1 (en) * 2023-08-02 2024-03-26 Hong Kong Young Brother International Group Limited Bird bath heater

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1692270A (en) * 1927-01-10 1928-11-20 Jensen Aage Apparatus for treating liquids
US2418254A (en) * 1944-10-05 1947-04-01 Russell R Fleharty Testing device
US3147364A (en) * 1962-08-30 1964-09-01 Socony Mobil Oil Co Inc Constant-temperature bath
US3381112A (en) * 1965-07-15 1968-04-30 Paul Kolb A G Electric boiler for central heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433847A (en) * 2005-12-29 2007-07-04 Tyco Electronics Heat operated electrical isolator

Also Published As

Publication number Publication date
CH542566A (en) 1973-09-30
ES402184A1 (en) 1975-03-01
FR2134691B1 (en) 1975-07-18
US3766358A (en) 1973-10-16
IT954905B (en) 1973-09-15
DE2218808A1 (en) 1972-11-23
AT312760B (en) 1974-01-25
DD95895A5 (en) 1973-02-20
FR2134691A1 (en) 1972-12-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees