EP0478508B1 - A steam producing apparatus for home use - Google Patents

A steam producing apparatus for home use Download PDF

Info

Publication number
EP0478508B1
EP0478508B1 EP91830098A EP91830098A EP0478508B1 EP 0478508 B1 EP0478508 B1 EP 0478508B1 EP 91830098 A EP91830098 A EP 91830098A EP 91830098 A EP91830098 A EP 91830098A EP 0478508 B1 EP0478508 B1 EP 0478508B1
Authority
EP
European Patent Office
Prior art keywords
boiler
water
reservoir
stem
steam
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 - Lifetime
Application number
EP91830098A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0478508A1 (en
Inventor
Costanzo Pan
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.)
DIERRE FINANZIARIA S.P.A.
Original Assignee
Anonima Costruzioni Tecniche Sammarinesi -Cts Soc
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 Anonima Costruzioni Tecniche Sammarinesi -Cts Soc filed Critical Anonima Costruzioni Tecniche Sammarinesi -Cts Soc
Priority to AT91830098T priority Critical patent/ATE98355T1/de
Publication of EP0478508A1 publication Critical patent/EP0478508A1/en
Application granted granted Critical
Publication of EP0478508B1 publication Critical patent/EP0478508B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F22B1/285—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs the water being fed by a pump to the reservoirs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/12—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source

Definitions

  • the present invention relates to a steam producing apparatus for home use of the type comprising a boiler provided with a resistor designed to heat and vaporize water a water reservoir independent of the boiler, a pump arranged to transfer water from the reservoir to the boiler.
  • these steam producing apparatus are equipped with a boiler provided with a resistor designed to heat and vaporize water.
  • This boiler has a steam outlet duct and a water admitting element which can be a filler or a duct connected to a reservoir.
  • the described apparatus comprises a boiler provided with a resistor to heat and vaporize water, a water reservoir independent of the boiler and a pump in fluid communication with the boiler on one hand, and the reservoir on the other hand.
  • the pump enabling the water to enter the boiler from the reservoir is activated by a detector detecting the minimum water level in the boiler and deactivated by another maximum water level detector.
  • topping-ups in the reservoir are effected on the discretion of the user who must periodically check the water level.
  • the pump carries out the subsequent boiler fillings upon command of minimum and maximum water level detectors and the apparatus works properly.
  • the object of the present invention is to solve the problems of the known art by an apparatus of easy construction offering an improved operation.
  • the invention receives a signalling about the total water consumption in the reservoir while having the apparatus operation interrupted.
  • a further advantage of the invention is the provision of an apparatus enabling a continuous steam delivery at constant pressure and temperature values, during the apparatus operation, without interruptions or waits.
  • Yet another advantage of the invention is the provision of an apparatus capable of ensuring a safe operation and preventing damage to the apparatus itself.
  • a steam producing apparatus for home use characterized in that the boiler and the reservoir contain a first and a second stem-like tank respectively, each consisting of a microcontact and a magnetic float adapted to close the microcontact when said float is in a predetermined position, the closing of the microcontact of the first stem-like tank causing operation of the pump thereby restoring the water level in the boiler and the closing of the microcontact (16) of the second stem-like tank signalling the lack of water in the reservoir, the microcontact being connected to a solenoid shutoff valve for carrying out the interruption of steam delivery from the boiler when a predetermined minimum water level is achieved in the reservoir.
  • a steam producing apparatus for home use in accordance with the invention has been generally identified by reference numeral 1.
  • the steam producing apparatus 1 comprises a steam producing boiler 2 provided with a resistor 3 designed to heat and vaporize water.
  • Boiler 2 is also equipped with a manostat 4 to keep the pressure control and at least a thermostat 5 to keep the temperature control.
  • the boiler 2 is connected to a reservoir 6 for cold water. Located at the bottom 6a of this reservoir 6 is one end 7a of a water outlet duct 7 which is connected, at the other end 7b thereof, to a pump 8 for the automatic charging of water into the boiler 2. At the pump outlet 8 there is one end 9a of a second duct 9 connected, at the other end 9b thereof, to the upper portion 2a of boiler 2.
  • a basin 10 having, at the inside thereof, one stem-like tank 11 consisting of a microcontact 12 and a magnetic float 13.
  • the float 13 is designed to close the microcontact 12 when the float 13 is in a lower position and open it when the float 13 is in an upper position relative to the average loading level corresponding to the water-steam separation line, denoted by L in the figure.
  • a second stem-like tank 14 for the cold water level control in the reservoir consisting of a magnetic float 15 and a microcontact 16.
  • the microcontact 16 when the float 15 is in a high position, that is when there is the presence of water, the microcontact 16 is open, whereas when the magnetic float 15 is in a low position, that is when water lacks, the microcontact 16 is closed.
  • Said stem-like tank 14, designed to signal the lack of water in the reservoir 6, is also connected to a solenoid shutoff valve 17 located at the top of the boiler 2, carrying out the interruption of steam delivery from the boiler 2 when a predetermined minimum water level is reached in the reservoir 6.
  • the second stem-like tank 14 also carries out the stoppage of the pump 8 when said minimum water level is reached in the reservoir.
  • the solenoid valve 17 is capable of ensuring steam having constant pressure and temperature characteristics to a steam iron 18 connected to the boiler 2.
  • the solenoid valve 17 is connected to the steam iron 18 by a third duct.
  • Apparatus 1 finally comprises an electric control board 20 of known type coordinating and connecting all the apparatus components.
  • control board 2 is connected to boiler 2 through a connection 24, in series with the thermostat 5, manostat 4 and resistor 3 respectively.
  • control board 20 is connected to the first stem-like tank 11, through a connection 25, and the steam iron through a connection 26.
  • resistor 3 begins heating the water until steam is produced, signalling on the control board 20, by means of a tell-tale lamp 20b that the steam iron 18 is ready for use.
  • the first stem-like tank 11 closes through its magnetic float 13, the microcontact 12 causing the operation of the pump 8 which begins sending water to the boiler 2, thereby restoring the water level.
  • the intervention of the pump 8 takes place each time the water level goes below the predetermined level corresponding to a slight level difference with respect to the starting level of the water in boiler 2.
  • the water contained in the reservoir 6 decreases in level and once it has reached its minimum level the second stem-like tank 14 sends a signal to the control board 20.
  • the control board 20 stops the apparatus use by means of the solenoid valve 17, also informing the user, by a warning light and/or an acoustic warning 20c located on the control board itself that water must be added into the reservoir 6 in order to restore the starting level.
  • the float 15 After the reservoir 6 has been filled with water, the float 15 reaches its maximum level position and opens the microcontact 16 again, thereby immediately restoring the apparatus use.
  • the boiler 2 would be further adjusted by the thermostat 5 and manostat 4 intervening on the resistor 3, through the control board 20.
  • the present invention attains the intended purposes.
  • the present invention allows the water consumption in the reservoir to be signalled, the emission of steam from the boiler to be stopped when the water level in the reservoir is below the minimum level, and the resistor overheating to be avoided, which could alter the good working of the whole apparatus.
  • the boiler is filled automatically and continuously thereby maintaining the steam amount and characteristics constant in use, all that without down times, while waiting for the water to be heated both between one topping up of the boiler and the other and after the second filling of the reservoir.
  • the apparatus offers a safe operation and greatly increases the practicality, continuity and duration of use.
EP91830098A 1990-09-28 1991-03-12 A steam producing apparatus for home use Expired - Lifetime EP0478508B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91830098T ATE98355T1 (de) 1990-09-28 1991-03-12 Dampferzeuger fuer verwendung im haushalt.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21844U IT220195Z2 (it) 1990-09-28 1990-09-28 Apparecchiatura per la produzione di vapore per uso domestico
IT2184490U 1990-09-28

Publications (2)

Publication Number Publication Date
EP0478508A1 EP0478508A1 (en) 1992-04-01
EP0478508B1 true EP0478508B1 (en) 1993-12-08

Family

ID=11187660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830098A Expired - Lifetime EP0478508B1 (en) 1990-09-28 1991-03-12 A steam producing apparatus for home use

Country Status (5)

Country Link
EP (1) EP0478508B1 (es)
AT (1) ATE98355T1 (es)
DE (1) DE69100745T2 (es)
ES (1) ES2049539T3 (es)
IT (1) IT220195Z2 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638767A1 (en) * 1993-05-20 1995-02-15 Satiber, S.L. Improvement of steam generators for household use
IT234849Y1 (it) * 1994-09-26 2000-03-20 Etairoi Holding Sa Apparecchio generatore di vapore per uso domestico, in particolare per lavori di pulizia
DE19505342C1 (de) * 1995-02-17 1996-04-18 Kaercher Gmbh & Co Alfred Kombiniertes Dampfreinigungs- und Dampfbügelgerät
IT1278873B1 (it) * 1995-12-07 1997-11-28 Giuliano Franchini Caldaia a rapida produzione di vapore
IT1297553B1 (it) * 1997-06-05 1999-12-17 Hot Line Srl Sistema di caricamento automatico di acqua nella caldaia di elettrodomestici in genere che utilizzano il vapore per esplicare
DE19742465A1 (de) * 1997-09-26 1999-04-15 Kaercher Gmbh & Co Alfred Kombiniertes Dampfreinigungs- und Dampfbügelgerät
EP1098138A1 (fr) * 1999-11-04 2001-05-09 Ecovap S.A. Dispositif de régulation d'un générateur d'un fluide chaud sous forme liquide ou gazeuse
US6786182B2 (en) 2001-07-27 2004-09-07 Imetec, S.P.A. Pressure control for household steam generator
EP2287381A1 (en) * 2009-08-17 2011-02-23 BSH Bosch und Siemens Hausgeräte GmbH Steam generator for use in a laundry appliance, and laundry appliance
GB201102971D0 (en) * 2011-02-21 2011-04-06 Strix Ltd Electrical water heating appliances
WO2014171908A2 (en) * 2013-04-10 2014-10-23 Yapicioğlu Umut Heat transfer device used for heating any liquid and air

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU615169B2 (en) * 1987-10-09 1991-09-26 Termozeta Elettrodomestici S.P.A. Utility steam generator with self-controlled pressure more particularly for little household electric appliances
US4948947A (en) * 1988-07-26 1990-08-14 Pacific Steam Equipment, Inc. Steam boiler

Also Published As

Publication number Publication date
ATE98355T1 (de) 1993-12-15
ES2049539T3 (es) 1994-04-16
IT9021844V0 (it) 1990-09-28
EP0478508A1 (en) 1992-04-01
IT9021844U1 (it) 1992-03-28
IT220195Z2 (it) 1993-07-13
DE69100745D1 (de) 1994-01-20
DE69100745T2 (de) 1994-03-24

Similar Documents

Publication Publication Date Title
US5189726A (en) Steam producing apparatus for home use with low cold water reservoir level steam output stoppage
EP0478508B1 (en) A steam producing apparatus for home use
EP0877200B1 (en) Household electrical steam generator with stabilized boiler water level, particularly for smoothing irons
US5404794A (en) Coffee-making machine
US4354094A (en) Thermostatically controlled electric continuous water heating unit
EP0354670A1 (en) Auto-off coffee brewing system
EP0438112B1 (en) Steam iron
US4139761A (en) Household coffee machine with calcification indicator
EP1221570A2 (en) Steam generator with automatic water loading system
KR950007014B1 (ko) 소형 가전 제품에 이용되는 압력 자동조절 증기 발생기
EP0703407B1 (en) Steam generator for domestic use, in particular for cleaning tasks
GB2143031A (en) Hot water dispenser
CA1238073A (en) Boilers or tanks for hot water
EP0574602A1 (en) Device for steam ironing fabrics
EP1019655B1 (en) Process for restoring the level of water in boilers of steam generating machines
WO1996032607A1 (en) Automatic replenishment method for the tank of a steam generator and device for carrying out the method
EP0887588A2 (en) System for automatically refilling the boiler with water electrical appliances that employ steam
EP0595077A1 (en) High-efficiency device for vapor production
KR100234644B1 (ko) 라면 자동판매기
US5535774A (en) Apparatus for storing and supplying water for use in catering equipment
AU661557B2 (en) Waterheater
US4827837A (en) Calcification indicator
US4589956A (en) Condensation heating facility control system
JPH01193506A (ja) ボイラのエコノマイザの過熱防止装置
GB2262594A (en) A boiler

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

17P Request for examination filed

Effective date: 19920122

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR LI LU NL SE

17Q First examination report despatched

Effective date: 19930222

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 FR GB GR LI LU NL SE

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

Ref country code: SE

Effective date: 19931208

Ref country code: DK

Effective date: 19931208

Ref country code: AT

Effective date: 19931208

Ref country code: GR

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: 19931208

REF Corresponds to:

Ref document number: 98355

Country of ref document: AT

Date of ref document: 19931215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69100745

Country of ref document: DE

Date of ref document: 19940120

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

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

Effective date: 19940331

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2049539

Country of ref document: ES

Kind code of ref document: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020321

Year of fee payment: 12

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: DIERRE FINANZIARIA S.P.A.

Free format text: SOCIETA ANONIMA COSTRUZIONI TECNICHE SAMMARINESI -C.T.S.#VIA FABRIZIO DE MONTEBELLO, 79#GUALDICCIOLO (SM) -TRANSFER TO- DIERRE FINANZIARIA S.P.A.#VIA MONTE PASUBIO, 103#25014 CASTENEDOLO (BS) (IT)

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

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: 20030313

NLS Nl: assignments of ep-patents

Owner name: DIERRE FINANZIARIA S.P.A.

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030313

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20050303

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050309

Year of fee payment: 15

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

Ref country code: GB

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

Effective date: 20060312

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 NON-PAYMENT OF DUE FEES

Effective date: 20061001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060312

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20061001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090306

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090316

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100331

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20100519

Year of fee payment: 20

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101130

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 NON-PAYMENT OF DUE FEES

Effective date: 20100331

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 NON-PAYMENT OF DUE FEES

Effective date: 20101001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BE20 Be: patent expired

Owner name: *DIERRE FINANZIARIA S.P.A.

Effective date: 20110312