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IE800068L - Switch unit for immersion heater - Google Patents

Switch unit for immersion heater

Info

Publication number
IE800068L
IE800068L IE800068A IE6880A IE800068L IE 800068 L IE800068 L IE 800068L IE 800068 A IE800068 A IE 800068A IE 6880 A IE6880 A IE 6880A IE 800068 L IE800068 L IE 800068L
Authority
IE
Ireland
Prior art keywords
switch
immersion heater
overcentre
lever
spring
Prior art date
Application number
IE800068A
Other versions
IE49138B1 (en
Original Assignee
Taylor John C
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 Taylor John C filed Critical Taylor John C
Publication of IE800068L publication Critical patent/IE800068L/en
Publication of IE49138B1 publication Critical patent/IE49138B1/en

Links

Classifications

    • 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
    • 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
    • A47J27/21116—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water using a bimetallic element specially adapted for detecting boiling of the water
    • 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)
  • Thermally Actuated Switches (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)

Abstract

A switch unit (1) for an electric immersion heater (4) for mounting on the wall (2) of a liquid heating vessel, includes a snap acting bimetallic actuator (33) which is exposed, in use, to vapour emerging through an outlet (37) from the vessel, and which is of the type disclosed in Specification 1542232. An overcentre spring mechanism couples the bimetallic actuator (33) to a movable contact (21) of the switch for opening and closing the switch, the overcentre spring mechanism being movable between a first position (as shown) in which the switch is closed and power can be supplied to the immersion heater (4) and a second position in which the switch is open for interrupting the supply of power to the immersion heater. A lever (25) of the overcentre mechanism is pivotally mounted on the body (7) of the switch and a spring (28) of the overcentre mechanism is mounted between fulcrums (29, 30) provided by the lever (25) and the body (7) so that the spring (28) biases the lever (25) into direct or indirect engagement with the bimetallic actuator (33) in the closed switch position. <IMAGE> [GB2040572A]
IE68/80A 1979-01-15 1980-01-14 Switch units for electric immersion heaters IE49138B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7901395A GB2040572B (en) 1979-01-15 1979-01-15 Switch units for electric immersion heaters

Publications (2)

Publication Number Publication Date
IE800068L true IE800068L (en) 1980-07-15
IE49138B1 IE49138B1 (en) 1985-08-07

Family

ID=10502528

Family Applications (1)

Application Number Title Priority Date Filing Date
IE68/80A IE49138B1 (en) 1979-01-15 1980-01-14 Switch units for electric immersion heaters

Country Status (8)

Country Link
AU (1) AU532589B2 (en)
CA (1) CA1139809A (en)
DE (1) DE3001138A1 (en)
FR (1) FR2446575A1 (en)
GB (1) GB2040572B (en)
IE (1) IE49138B1 (en)
NZ (1) NZ192595A (en)
ZA (1) ZA80143B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE52402B1 (en) * 1980-12-19 1987-10-14 Haden D H Ltd Improvements relating to vessels for heating liquids
US4510375A (en) * 1981-05-28 1985-04-09 Ti Russell Hobbs Limited Electric immersion heater assembly for liquid heating appliances
GB8803550D0 (en) * 1988-02-16 1988-03-16 Strix Ltd Electrical contact
FR2679318B1 (en) * 1991-07-19 1996-07-12 Seb Sa WATER HEATING APPARATUS, ESPECIALLY KETTLE, COMPRISING A SUPPLY CONTROL AND BREAKING DEVICE.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198719B1 (en) * 1972-09-11 1976-05-21 Hobbs R Ltd
GB1470367A (en) * 1974-07-02 1977-04-14 Taylor J Electric immersion heaters
NZ179521A (en) * 1974-12-12 1978-11-13 J Taylor Snap acting bimetal: domed disc with tongue cutout

Also Published As

Publication number Publication date
AU532589B2 (en) 1983-10-06
NZ192595A (en) 1982-11-23
FR2446575A1 (en) 1980-08-08
AU5456080A (en) 1980-07-24
IE49138B1 (en) 1985-08-07
GB2040572A (en) 1980-08-28
DE3001138A1 (en) 1980-07-24
GB2040572B (en) 1983-08-17
ZA80143B (en) 1981-07-29
CA1139809A (en) 1983-01-18

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