[go: up one dir, main page]

EP0947767A3 - Device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators - Google Patents

Device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators Download PDF

Info

Publication number
EP0947767A3
EP0947767A3 EP99105029A EP99105029A EP0947767A3 EP 0947767 A3 EP0947767 A3 EP 0947767A3 EP 99105029 A EP99105029 A EP 99105029A EP 99105029 A EP99105029 A EP 99105029A EP 0947767 A3 EP0947767 A3 EP 0947767A3
Authority
EP
European Patent Office
Prior art keywords
scale
detecting
thickness
resistive elements
electric resistor
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.)
Granted
Application number
EP99105029A
Other languages
German (de)
French (fr)
Other versions
EP0947767A2 (en
EP0947767B1 (en
Inventor
Luigi Nalini
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.)
Carel SpA
Original Assignee
Carel SpA
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 Carel SpA filed Critical Carel SpA
Publication of EP0947767A2 publication Critical patent/EP0947767A2/en
Publication of EP0947767A3 publication Critical patent/EP0947767A3/en
Application granted granted Critical
Publication of EP0947767B1 publication Critical patent/EP0947767B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators, comprising a temperature probe (19) which is arranged inside a sheath (15) that contains the resistive element (14) that is used to generate the steam. The probe is connected to means which at least indicate to the user the temperature in comparison with a preset threshold. <IMAGE>
EP99105029A 1998-04-02 1999-03-22 Device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators Expired - Lifetime EP0947767B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT98PD000079A ITPD980079A1 (en) 1998-04-02 1998-04-02 DEVICE FOR DETECTION OF THE THICKNESS OF SCRATCHES ON THE RESISTIVE ELEMENTS OF STEAM GENERATORS WITH ELECTRIC RESISTANCE
ITPD980079 1998-04-02

Publications (3)

Publication Number Publication Date
EP0947767A2 EP0947767A2 (en) 1999-10-06
EP0947767A3 true EP0947767A3 (en) 2001-01-31
EP0947767B1 EP0947767B1 (en) 2005-05-18

Family

ID=11392144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105029A Expired - Lifetime EP0947767B1 (en) 1998-04-02 1999-03-22 Device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators

Country Status (4)

Country Link
EP (1) EP0947767B1 (en)
AT (1) ATE295950T1 (en)
DE (1) DE69925328D1 (en)
IT (1) ITPD980079A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAN20040046A1 (en) * 2004-10-01 2005-01-01 Merloni Termosanitari Spa WATER HEATER WITH ACCUMULATION, FLUSH FOR WATER HEATER WITH ACCUMULATION, METHOD OF CHECKING THE WATER SCREENINGS, AND USE OF TEMPERATURE SENSORS TO CHECK THE SCALE OF CALCARE OF A WATER HEATER
EP1938020A1 (en) * 2005-09-02 2008-07-02 Andre Meinhard Fourie A heating device
CN104188504B (en) * 2014-08-25 2016-07-13 广东美的厨房电器制造有限公司 The clean prompting method of steam raising plant, prompt system and steam cooking vessel
CN105021644B (en) * 2015-08-05 2018-09-14 广东美的厨房电器制造有限公司 Detection method and detecting system for steam heater
WO2019185320A1 (en) * 2018-03-29 2019-10-03 BSH Hausgeräte GmbH Determining a thickness of a limescale layer
CN114305269B (en) * 2020-09-30 2023-04-07 广东美的厨房电器制造有限公司 Steam generator and steam mop
DE102023102581A1 (en) 2023-02-02 2024-08-08 Carl Freudenberg Kg Cleaning device and method for controlling a cleaning device taking into account calcification

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956544A (en) * 1988-07-26 1990-09-11 Hotwatt Inc. Overheat protected electric cartridge heater
DE9111230U1 (en) * 1990-09-18 1991-11-21 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Media heaters, especially steam generators
EP0654635A1 (en) * 1993-11-19 1995-05-24 Superba S.A. Rechargeable steam generator
JPH109506A (en) * 1996-06-20 1998-01-16 Juki Corp Steam generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956544A (en) * 1988-07-26 1990-09-11 Hotwatt Inc. Overheat protected electric cartridge heater
DE9111230U1 (en) * 1990-09-18 1991-11-21 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Media heaters, especially steam generators
EP0654635A1 (en) * 1993-11-19 1995-05-24 Superba S.A. Rechargeable steam generator
JPH109506A (en) * 1996-06-20 1998-01-16 Juki Corp Steam generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) *

Also Published As

Publication number Publication date
EP0947767A2 (en) 1999-10-06
DE69925328D1 (en) 2005-06-23
ITPD980079A1 (en) 1999-10-02
ATE295950T1 (en) 2005-06-15
EP0947767B1 (en) 2005-05-18

Similar Documents

Publication Publication Date Title
EP0998874A3 (en) An impedance measuring device and a health management device using the same
ATE252223T1 (en) INFRARED THERMOMETER
KR960702903A (en) Resistance measuring circuit, and thermal appliance, electrical thermometer and cold generating appliance including such a measuring circuit
EP0947767A3 (en) Device for detecting the thickness of scale on resistive elements of electric resistor-based steam generators
DE60207176D1 (en) Switch for kettle
ATE238522T1 (en) TEMPERATURE MEASUREMENT AND LIMITATION DEVICE
DE59402184D1 (en) Device for removing wallpaper
ATE403229T1 (en) TEMPERATURE DEPENDENT SWITCH
ES2161836T3 (en) DEVICE FOR THE MEASUREMENT OF ELECTRICAL ENERGY THAT INCLUDES A MULTIPLEXOR.
GB2006435A (en) Contact Sensing Probe
EP0990877A3 (en) Assembly for determining water consumption along a water mains intake pipe
FR2406835A1 (en) Length measuring machine contact sensing probe - has sensing circuit monitoring probe vibrations generated by transducer in contact element
CA2406519A1 (en) Fail safe device for infant-support apparatus
GR3031440T3 (en) A magneto-thermic switch having thermal protection which can be calibrated mechanically and associated method of calibration
EP0064127A3 (en) Electronic thermometer with integrally housed probe and coil cord
ATE328266T1 (en) MEASUREMENT DEVICE
FR2747823B1 (en) ELECTRIC HOUSEHOLD APPLIANCE WITH OPERATION INDICATION DEVICE
RU96123956A (en) DEVICE FOR DETERMINING THE MALIBILITY OF THE MUSCULA OF THE ORAL CAVITY
FR2852133B1 (en) OVERHEATING DETECTION SENSOR
SE8500479D0 (en) INSTRUCTIONS FOR MEASUREMENT OF RELATIVE AIR CONDITIONING
SE8401038D0 (en) CONTROL DEVICE, IN PARTICULAR FOR COPIATORS
IE790965L (en) Tonglike device for gripping a temperature measuring device
JPS52122188A (en) Electrode with capability of selection for ion
GB2011044A (en) Boiler and Like Casings
SU816711A2 (en) Electric solderer with temperature regulation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010705

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB IE IT LI NL SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69925328

Country of ref document: DE

Date of ref document: 20050623

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050818

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050819

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060322

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060322

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060221

EN Fr: translation not filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060322

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331