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WO1998002072A1 - Ameliorations concernant des recipients rechauffes electriquement - Google Patents

Ameliorations concernant des recipients rechauffes electriquement Download PDF

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Publication number
WO1998002072A1
WO1998002072A1 PCT/GB1997/001893 GB9701893W WO9802072A1 WO 1998002072 A1 WO1998002072 A1 WO 1998002072A1 GB 9701893 W GB9701893 W GB 9701893W WO 9802072 A1 WO9802072 A1 WO 9802072A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
heating element
mounting flange
heating
secured
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.)
Ceased
Application number
PCT/GB1997/001893
Other languages
English (en)
Inventor
Robert Andrew O'neill
Antonio Martin Gaeta
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
Application filed by Otter Controls Ltd filed Critical Otter Controls Ltd
Priority to AU35504/97A priority Critical patent/AU3550497A/en
Publication of WO1998002072A1 publication Critical patent/WO1998002072A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A47J27/21166—Constructional details or accessories
    • 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
    • A47J27/2105—Water-boiling vessels, e.g. kettles electrically heated of the cordless type, i.e. whereby the water vessel can be plugged into an electrically-powered base element

Definitions

  • This invention concerns improvements relating to electrically heated vessels, particularly electrically powered water heating vessels such as kettles, hot water jugs, pots, pans, urns, laboratory equipment and the like.
  • Heating element in the form of a wire wound resistance heater which is mounted with insulation within a tubular metal sheath.
  • Sheathed heating elements of this kind have commonly incorporated an element head plate to which the heating element proper is affixed, and the head plate has provided for the attachment of the heating element to and in the associated appliance, an opening commonly being provided in a wall of the appliance for this purpose.
  • Planar electrical heating elements are however known and have been used for many years as hot plates in coffee making machines.
  • One such planar element consists of an aluminium plate having a sheathed heating element as abovementioned cast or clenched to its underside.
  • Planar heating elements have also been proposed which comprise a resistance heating track formed upon an electrically-insulating substrate by printing or by lithographic techniques; one such element comprises a stainless steel substrate which is coated on one side with glass or another electrically-insulating material, the resistance heating track being formed on the surface of the glass and then a further electrically-insulating layer being formed over the resistance heating track.
  • US-A-3 308 225 there is described a technique for fixing a planar heating element mounting plate within a plastics bodied water heating vessel, the plastics body having a portion which seats the mounting plate and multiple projections upstanding from such mounting portion extending through holes formed in the periphery of the mounting plate and being thermally deformed so as in effect to rivet the element mounting plate in position.
  • a similar technique used to fix a planar heating element in a plastics bodied water boiling vessel would clearly result in the element not being replaceable if it were to fail.
  • a clench is formed around the periphery of the heating element mounting plate and is fitted around the lower edge of the vessel wall.
  • GB-A-2 291 325 proposes to employ a sealing ring which captures the periphery of the planar heating element against a flange formed within the base of the vessel , and to deform a wall portion of the vessel so that it retains the sealing ring under sealing pressure. Again this results in a vessel which cannot be serviced if the heating element fails.
  • the vessel is formed with an internal flange near its base and the periphery of the planar heating element seats upon this flange and is urged into sealing contact with the flange by virtue of the provision of a central mounting stud on the element which is secured to a bottom cover of the vessel so as to give rise to a reaction force which pulls downwards on the heating element.
  • This arrangement provides for serviceability of the heating element, but can suffer from the problem that the clamping force that is generated is insufficient to ensure an effective seal, particularly if the vessel is abused during its usage. A similar problem can arise with the proposal made in our own British Patent Application No. 9524176.6.
  • the abovementioned object is achieved by means of a heating element mounting arrangement in which screw-threaded studs are provided around the underside of the periphery of the heating element, a gasket seal of appropriate shape is fitted over the studs and between the studs and the element plate, the studs pass through holes provided in a flange around the base of the vessel and the arrangement is secured by fitting nuts to the studs.
  • the flange may be an internal or external flange with respect to the vessel, depending on the design of the product.
  • the heating element could be provided with holes which register with the holes in the flange and the studs could be provided on a separate fixation ring. This would avoid the need to form fixing studs on the heating element which could be undesirable with a resistance track type of heating element.
  • the present invention provides an electrically powered water heating vessel having a planar heating element which is secured in the vessel by virtue of the vessel having a mounting flange which is apertured at a plurality of locations throughout its length and by virtue of the heating element being sealingly secured to the mounting flange by means of screw-threaded fastening means which pass through said apertures.
  • Figure 1 shows an exploded perspective view of the mounting of a heating element to a vessel in accordance with the teachings of the present invention.
  • Figures 2A, 2B and 2C show, respectively, a partial cross-sectional view of the appliance of
  • Figure 1 a partial side elevation view of the appliance and a partial side elevation view of a base unit for use with the appliance.
  • the vessel in question is the vessel part of a cordless electrical water heating vessel which also comprises a base unit (see Figure 2C) which, as is well known, serves to power the appliance from the mains electrical supply, there being co-operating electrical connectors provided on the vessel part and on the base unit which come together to power the vessel heating element when the vessel part is properly seated on the base unit.
  • the heating element 1 is formed with four screw-threaded studs 2 which fit through holes 3 in a gasket seal 4 and then through registering holes 5 in a flange 6 formed in the bottom of the vessel 7 where they are secured by means of nuts 8 , the assembly then being received in a vessel cover part 9.
  • the heating element 1 is of the kind aforementioned which comprises an aluminium plate 10 having a sheathed heating element proper 11 cast or clenched into its undersurface. Shown attached to the central part of the underside of the element is an element protector control 12 adapted to switch-off the electrical supply to the heating element in the event of the element temperature rising above a certain safe level; the element protector control 12 is an X-type control manufactured by us and is substantially as described in GB-A-2 283 156 with reference to Figure 1 thereof. Also affixed to the underside of the heating element 1 is the vessel connector inlet part 13 of a cordless connection system substantially as described in WO-A-946185 with reference to Figures 7 to 11 thereof.
  • Figure 2A is a partial cross-sectional view showing the assembled vessel of Figure l, complete with element protector control 12 and connector inlet part 13 , seated upon a base unit 14 which has affixed thereto a base unit connector part 15 complementary to the connector part 13 that is provided on the vessel.
  • the base unit connector part 15 is as described in O-A-946185.
  • Figure 2B is an external view of the appliance part of the cordless appliance of Figure 2A and Figure 2C shows the base part 14.
  • the heating element 1 is readily removable from the vessel simply by unscrewing the locking nuts 8 and can thus readily be replaced if it becomes faulty in use.
  • the element protector control 12 and the connector inlet part 13 can also be arranged to be readily replaceable. Additionally, by the use of a plurality of fixing studs spaced around the periphery of the heating element, a uniform sealing force can readily be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)

Abstract

Récipient électrique sans cordon (7) servant à réchauffer de l'eau et possédant un élément de réchauffement plat (1) fixé audit récipient (7) par une bride de montage (6) pourvue d'ouvertures au niveau d'une pluralité d'emplacements (5), ledit élément de réchauffement (1) étant fixé de façon étanche à la bride de montage (6) au moyen de tiges de fixation filetées (2) passant à travers les ouvertures (5) de la bride de montage (6). Ce dispositif permet de remplacer immédiatement l'élément de réchauffement et d'exercer un force d'obturation uniforme.
PCT/GB1997/001893 1996-07-15 1997-07-15 Ameliorations concernant des recipients rechauffes electriquement Ceased WO1998002072A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35504/97A AU3550497A (en) 1996-07-15 1997-07-15 Improvements relating to electrically heated vessels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9614872A GB2315204B (en) 1996-07-15 1996-07-15 Improvements relating to electrically heated vessels
GB9614872.1 1996-07-15

Publications (1)

Publication Number Publication Date
WO1998002072A1 true WO1998002072A1 (fr) 1998-01-22

Family

ID=10796957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/001893 Ceased WO1998002072A1 (fr) 1996-07-15 1997-07-15 Ameliorations concernant des recipients rechauffes electriquement

Country Status (4)

Country Link
CN (1) CN1135092C (fr)
AU (1) AU3550497A (fr)
GB (1) GB2315204B (fr)
WO (1) WO1998002072A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005450A1 (de) * 2000-02-08 2001-08-09 Bsh Bosch Siemens Hausgeraete Behälter
DE10052565B4 (de) * 1999-11-08 2009-12-17 Gastro-Gerätebau GmbH Vorrichtung zur Beheizung eines Kessels

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU9357398A (en) 1997-10-07 1999-04-27 Otter Controls Limited Improvements relating to electrically heated vessels
GB9823435D0 (en) * 1998-10-26 1998-12-23 Strix Ltd Liquid heating apparatus
FR2787310B1 (fr) * 1998-12-21 2001-01-26 Seb Sa Appareil electromenager destine a chauffer les liquides, notamment cafetiere electrique a piston
GB2363973A (en) 2000-06-29 2002-01-16 Otter Controls Ltd Securing planar heating element in liquid heating vessel
GB2364890A (en) 2000-07-25 2002-02-13 Otter Controls Ltd Securing planar heating element in liquid heating vessel
GB2369553A (en) * 2000-12-02 2002-06-05 Walter Randall Cordless kettle
FR2868677B1 (fr) * 2004-04-07 2006-11-10 Seb Sa Appareil electrique de chauffage de liquide
CN100463632C (zh) * 2004-12-03 2009-02-25 江门市洗衣机厂 一种采用平板加热元件的电加热容器
GB2497978A (en) 2011-12-23 2013-07-03 Otter Controls Ltd Liquid heating vessel and control
CN102657474B (zh) * 2012-05-10 2014-07-16 浙江绍兴苏泊尔生活电器有限公司 一种电水壶

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB295796A (en) * 1927-06-24 1928-08-23 William Edwards Improvements relating to electrically heated kettles, saucepans and other apparatus
GB416596A (en) * 1933-05-02 1934-09-18 Fred Baker Ltd Improvements in or relating to electric kettles, urns and the like
CA1202659A (fr) * 1984-06-07 1986-04-01 Ronal C. Du Pont Bouilloire electrique
GB2292841A (en) * 1994-08-26 1996-03-06 Strix Ltd Contact arrangement for a liquid heating vessel
DE29607645U1 (de) * 1996-04-26 1996-07-11 Chao, Ming Hui, Yen Shui, Tainan Mehrzweck-Warmwasserbereiter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB719962A (en) * 1952-05-19 1954-12-08 Simplex Electric Co Ltd Improvements in vessels for heating liquids
US3487200A (en) * 1967-11-03 1969-12-30 Sunbeam Corp Electric kettle
GB1512033A (en) * 1976-05-13 1978-05-24 Sutton & Son Ltd Apparatus for heating liquid in a container
GB2143108B (en) * 1983-06-30 1987-10-28 Still & Sons Ltd W M Hot water dispenser
FR2670660A1 (fr) * 1990-12-19 1992-06-26 Seb Sa Bouilloire electrique a chauffage ameliore.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB295796A (en) * 1927-06-24 1928-08-23 William Edwards Improvements relating to electrically heated kettles, saucepans and other apparatus
GB416596A (en) * 1933-05-02 1934-09-18 Fred Baker Ltd Improvements in or relating to electric kettles, urns and the like
CA1202659A (fr) * 1984-06-07 1986-04-01 Ronal C. Du Pont Bouilloire electrique
GB2292841A (en) * 1994-08-26 1996-03-06 Strix Ltd Contact arrangement for a liquid heating vessel
DE29607645U1 (de) * 1996-04-26 1996-07-11 Chao, Ming Hui, Yen Shui, Tainan Mehrzweck-Warmwasserbereiter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052565B4 (de) * 1999-11-08 2009-12-17 Gastro-Gerätebau GmbH Vorrichtung zur Beheizung eines Kessels
DE10005450A1 (de) * 2000-02-08 2001-08-09 Bsh Bosch Siemens Hausgeraete Behälter

Also Published As

Publication number Publication date
GB9614872D0 (en) 1996-09-04
HK1002548A1 (en) 1998-09-04
GB2315204A (en) 1998-01-28
CN1135092C (zh) 2004-01-21
AU3550497A (en) 1998-02-09
CN1199328A (zh) 1998-11-18
GB2315204B (en) 2000-10-04

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