[go: up one dir, main page]

GB1470365A - Electric immersion heaters - Google Patents

Electric immersion heaters

Info

Publication number
GB1470365A
GB1470365A GB2110174A GB2110174A GB1470365A GB 1470365 A GB1470365 A GB 1470365A GB 2110174 A GB2110174 A GB 2110174A GB 2110174 A GB2110174 A GB 2110174A GB 1470365 A GB1470365 A GB 1470365A
Authority
GB
United Kingdom
Prior art keywords
head plate
bimetal
chassis
secured
engages
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
GB2110174A
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.)
Otter Controls Ltd
Original Assignee
Otter Controls 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
Priority to GB3089773A priority Critical patent/GB1470366A/en
Application filed by Otter Controls Ltd filed Critical Otter Controls Ltd
Priority to GB2110174A priority patent/GB1470365A/en
Publication of GB1470365A publication Critical patent/GB1470365A/en
Priority to HK25978A priority patent/HK25978A/en
Priority to MY7800226A priority patent/MY7800226A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
    • A47J27/21016—Water-boiling vessels, e.g. kettles electrically heated with heating elements immersed in the water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
    • A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
    • A47J27/21108—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water using a bimetallic element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • 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
    • H05B3/82—Fixedly-mounted immersion heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/5472—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting having an omega form, e.g. the bimetallic snap element having a ring shape with a central tongue

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cookers (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

1470365 Thermal switches OTTER CONTROLS Ltd 13 May 1974 [28 June 1973 3 July 1973 22 Oct 1973] 21101/74 21102/74 and 21103/74 Divided out of 1470366 Heading H1N [Also in Division H5] To reduce heat loss from a snap-acting bimetal 23 and thus make the immersion heater overheating switch respond more rapidly, the bimetal 23 which when cold engages a flat or dished metal head plate 2 carrying heating element 1, is mounted on a thermally insulating portion, e.g. a post 22 of the switch. The trifurcated bimetal blade 23 engages a dimple 8 of head plate 2 directly or through a silicon paste heat sink compound between bimetal 23 and head plate 2 and is secured to post 22 by head plate 2 and is secured to post 22 by a rivet 27, rotation of the bimetal 23 being prevented by a pin 28 engaged in the central tongue 24 of the bimetal. A rod 29 transmits the movement of bimetal 23 to the blade 30 carrying the movable contact 34 of the switch. The fixed contact 35 is carried by a blade 36 which engages the cold end 40 of the heating element 1. Terminal pin 31 mounted on the glass fibre reinforced chassis member 12 is secured to blade contact 30. The neutral terminal pin 31 mounted on chassis 12 is secured to a spring strip which engages the other cold end of the element 1. The earth pin 44 is mounted on chassis 12 and is soldered to a brass strip 45 which is in turn secured to a threaded stud 11 of head plate 2 by a nut 18. Three such studs 11 mounted on head plate 2 pass through holes 17 in chassis 12 so that when nuts 18 or other fasteners are secured thereon, the wall of a vessel is clamped between the rim 9 of head plate 2 and an annular rim 19 of the chassis 12. Sealing rings 10, 20 are interposed between the vessel wall and the head plate 2 and chassis 12 respectively. Spring studs 21 formed on the chassis 12 engage the head plate 2 to ensure optimum relative location of bimetal actuator 23 and head plate 2, despite variations in thickness of the sealing rings 10, 20. The steam actuator located above line X-X in Fig. 4 is optional and is more fully described in copending Specification 1,470,366 the claims of which are directed to the means of mounting a thermally controlled immersion heater in an aperture or apertures of a vessel wall. Kettles, jugs, urns, and pans may incorporate the heater.
GB2110174A 1973-06-28 1974-05-13 Electric immersion heaters Expired GB1470365A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3089773A GB1470366A (en) 1973-06-28 1973-06-28 Electric immersion heaters
GB2110174A GB1470365A (en) 1973-06-28 1974-05-13 Electric immersion heaters
HK25978A HK25978A (en) 1973-06-28 1978-05-25 Improvements relating to electric immersion heaters
MY7800226A MY7800226A (en) 1974-05-13 1978-12-31 Improvements relating to electric immersion heaters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3089773A GB1470366A (en) 1973-06-28 1973-06-28 Electric immersion heaters
GB2110174A GB1470365A (en) 1973-06-28 1974-05-13 Electric immersion heaters

Publications (1)

Publication Number Publication Date
GB1470365A true GB1470365A (en) 1977-04-14

Family

ID=26255136

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3089773A Expired GB1470366A (en) 1973-06-28 1973-06-28 Electric immersion heaters
GB2110174A Expired GB1470365A (en) 1973-06-28 1974-05-13 Electric immersion heaters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3089773A Expired GB1470366A (en) 1973-06-28 1973-06-28 Electric immersion heaters

Country Status (1)

Country Link
GB (2) GB1470366A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484818A1 (en) * 1980-06-18 1981-12-24 Ti Russell Hobbs Ltd
US4358666A (en) 1979-01-15 1982-11-09 Taylor John C Water-boiling container with switch-on-dry and steam sensitive thermally responsive control units
US4360726A (en) 1979-08-15 1982-11-23 D. H. Haden Limited Electric kettle
US4455476A (en) * 1980-12-19 1984-06-19 D. H. Haden Limited Electric kettle with independently detachable subassemblies
US4752671A (en) * 1985-05-22 1988-06-21 Otter Controls Limited Electric immersion heating elements and controls therefor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045588B (en) * 1979-03-23 1983-09-07 Taylor J C Water-boiling containers
GB2103460B (en) * 1981-05-28 1985-05-09 T I Russell Hobbs Limited Electrical immersion heaters and liquid heating appliances including such heaters
US4621186A (en) * 1981-12-16 1986-11-04 Strix Limited Thermally-sensitive control arrangement for containers provided with electric immersion heaters
GB8524487D0 (en) * 1985-10-04 1985-11-06 Strix Ltd Thermally-sensitive controls
DE3645341C2 (en) * 1985-10-04 1998-04-09 Strix Ltd Temp.-sensitive control for immersion heater or hotplate
GB2212664B (en) * 1987-11-23 1992-07-08 Otter Controls Ltd Improvements relating to thermally responsive actuators
GB2248520B (en) * 1987-11-23 1992-06-24 Otter Controls Ltd Improvements relating to thermally responsive controls for water boiling vessels
GB2304468B (en) * 1995-08-21 1997-08-06 Otter Controls Ltd Improvements relating to thermal controls
ITVE20050034U1 (en) * 2005-10-20 2007-04-21 I R C A S P A Ind Resistenze BOND DEVICE OF A RESISTANCE ON EQUIPMENT FOR COLLECTIVE CATERING.
CN100567844C (en) * 2007-05-21 2009-12-09 宁波好伙伴电器有限公司 Overheat protector, matching electric heater and corresponding liquid heater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358666A (en) 1979-01-15 1982-11-09 Taylor John C Water-boiling container with switch-on-dry and steam sensitive thermally responsive control units
US4360726A (en) 1979-08-15 1982-11-23 D. H. Haden Limited Electric kettle
FR2484818A1 (en) * 1980-06-18 1981-12-24 Ti Russell Hobbs Ltd
US4455476A (en) * 1980-12-19 1984-06-19 D. H. Haden Limited Electric kettle with independently detachable subassemblies
US4752671A (en) * 1985-05-22 1988-06-21 Otter Controls Limited Electric immersion heating elements and controls therefor

Also Published As

Publication number Publication date
GB1470366A (en) 1977-04-14

Similar Documents

Publication Publication Date Title
GB1470365A (en) Electric immersion heaters
US4122330A (en) Electric hot plate assemblies
US4306211A (en) Heat operated protective switch
US4899124A (en) Thermally controlled electric switch
GB1408388A (en) Electric kettles
US2543040A (en) Snap-action thermostatic switch
US2199638A (en) Thermostat
US3041437A (en) Control device
US4605841A (en) Thermostat for electric hotplate
IE801555L (en) Electric kettle
GB1516141A (en) Electric cooking plates
GB1255175A (en) Improvements in thermally sensitive electric switches and actuating devices therefor
GB1172114A (en) Snap-Acting Thermostatic Electric Switch
US2689903A (en) Electric range surface heating unit
US3354278A (en) Stack-type thermoresponsive switch having a supplemental heater with annularly-shaped heater portion and terminal regions
GB1430229A (en) Electric immersion heaters and thermal control units therefor
GB1264464A (en)
US2262397A (en) Circuit interrupter
US2717936A (en) Thermostatic switch
US2011610A (en) Thermal switch
US4498069A (en) Electric switches actuated by bimetals for one or several temperatures of response
US2111609A (en) Thermostatically controlled heating device
US2757256A (en) Current responsive devices
US2684430A (en) Electric cooking appliance with cooking plate and thermostat
GB519976A (en) Thermostatically controlled electric switch

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940512