EP0253910B1 - Dampfreinigungsgerät - Google Patents

Dampfreinigungsgerät Download PDF

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Publication number
EP0253910B1
EP0253910B1 EP19860109966 EP86109966A EP0253910B1 EP 0253910 B1 EP0253910 B1 EP 0253910B1 EP 19860109966 EP19860109966 EP 19860109966 EP 86109966 A EP86109966 A EP 86109966A EP 0253910 B1 EP0253910 B1 EP 0253910B1
Authority
EP
European Patent Office
Prior art keywords
cleaning apparatus
steam
electric pump
boiler chamber
flash boiler
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
EP19860109966
Other languages
English (en)
French (fr)
Other versions
EP0253910A1 (de
Inventor
Costantino Ronchi
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.)
ELWATT Srl
Original Assignee
ELWATT Srl
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 ELWATT Srl filed Critical ELWATT Srl
Priority to EP19860109966 priority Critical patent/EP0253910B1/de
Priority to DE8686109966T priority patent/DE3681586D1/de
Publication of EP0253910A1 publication Critical patent/EP0253910A1/de
Application granted granted Critical
Publication of EP0253910B1 publication Critical patent/EP0253910B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4086—Arrangements for steam generation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • 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
    • F22B1/288—Instantaneous electrical steam generators built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls

Definitions

  • This invention relates to a steam cleaning apparatus of the kind defined in the preamble of claim 1.
  • apparatuses for steam cleaning generic surfaces such as floors, walls, and so forth, and normally employed for domestic use, are already present on the market, and comprise substantially a boiler which contains water to be heated by an electric resistance heater until steam is produced which, through a flexible hose, is brought to an outlet fitting or device for delivery of the steam over the surfaces to be cleaned.
  • US-A-2 849 736 discloses an apparatus of the above mentioned kind, i.e., a fabric steaming brush adapted to generate steam in a flash manner, while US-A-2 639 365 discloses a portable steam cleaner having a small portable boiler, wherein steam is generated, and a valve controlled nozzle for discharging steam when desired.
  • Prior types have, in some embodiments, a solenoid valve which cuts off the steam flow, as controlled from a pushbutton or the like, or may simply have restricted nozzles or other like elements which do not afford control of the steam delivery, which takes place as a continuous flow.
  • the steam production is effected by means of a pressurized boiler into which a certain amount of liquid is introduced which must be fully heated to effect the production of steam, resulting in consequence in a long time for operating the apparatus, with the need for providing heating of the liquid mass throughout, even in those cases where reduced amounts of steam are required.
  • a further drawback of the known types is then that it is necessary to adopt precautions both in opening the boiler and in introducing the water into the boiler, because it is necessary, in order to open the boiler, that the temperature and consequently the inside pressure have dropped to adequate levels to prevent steam jets at opening and hazardous thermal surges at the time of introducing the water with the likelihood of steam or hot water jets being ejected outwards.
  • the aim set forth for this invention is indeed that of eliminating the above drawbacks, by providing a steam cleaning apparatus generator which is extremely versatile and handy, and, in particular, which can be used on every possible position, also upside down, and moreover, has no pressurized boiler, with consequent elimination of all the potential hazards.
  • an object of this invention is to provide a cleaning apparatus wherein thermal losses and waste are minimised, thereby increasing the efficiency of the apparatus.
  • a further object of this invention is to provide a cleaning apparatus which has an extremely compact and handy conformation as the only constraint is the electric cable and is fully reliable and safe to use.
  • the steam cleaning apparatus comprises a body, generally designated at 1, which has handgrip means consisting of a gripping member 2 and a handle element 3, the latter being defined in a middle portion of the body itself.
  • an electric cable 4 having a plug 5 and possibly provided with a switch 6.
  • the cited electric cable is further connected to a pushbutton 7 for controlling the electric pump, preferably arranged in the gripping member 2 and advantageously flanked by a light indicator 8.
  • the gripping member 2 is advantageously provided with a ring 9 for suspending the apparatus while the body 1 defines two cable take-up hooks 10 and 11 projecting outwards.
  • the body 1 defines a tank 15, at which the gripping handle 3 is formed, said tank having a filler fitting 16 over which a cap 17 provided with a small vent valve 18 can be fitted.
  • the tank 15 accommodates a dip tube 20 which is connected to pumping means consisting of an electric pump 21 driven by the pushbutton 7.
  • the dip tube 20 is of the flexible type, and at its free end is provided with a weighing body 22 thereby the free end of the dip tube 20 is at all times submerged in the water irrespective of the position taken by the body 1 during the apparatus utilization.
  • the electric pump 21 is supported on a flange 25 through a threaded ring nut 26 engaging with a joint 27 for connection to the dip tube 20.
  • the electric pump 21 delivery is connected, through a thermally insulating fitting 30, to a flash steam generator 31, consisting of a cylindrical or prismatic body which defines a cylindrical chamber in the walls whereof there is inserted an embedded resistance 32 controlled by a thermostat 33 (esemplified in Figure 9 by a switch) which maintains the desired thermal level for the generator 31, such that the water jet admitted through the electric pump 21 is flash steamed.
  • a flash steam generator 31 consisting of a cylindrical or prismatic body which defines a cylindrical chamber in the walls whereof there is inserted an embedded resistance 32 controlled by a thermostat 33 (esemplified in Figure 9 by a switch) which maintains the desired thermal level for the generator 31, such that the water jet admitted through the electric pump 21 is flash steamed.
  • the steam generator 31 is externally insulated by an insulating sleeve 34 and is provided, at the end remote from the water inlet end, with a delivery nozzle 35 attached to the generator 31 through a mounting flange 36 which defines a coupling tang 37 for interchangeable application of outlets delivering the steam generated in the flash boiler chamber.
  • outlets may have varied conformations, according to their specific utilization; in the accompanying drawings some of the possible conformations for such outlets are shown.
  • Figure 5 shows an outlet 40 provided with bristles 41 encircling the steam delivery area, which is particularly suitable for floor cleaning.
  • Figure 6 shows a paddle-like outlet 42 of an extendible type which is advisable for wet cleaning and scraping; and Figure 7 shows a nozzle-like outlet 43 preferably applicable for cleaning hard-to-reach places.
  • Figure 8 furthermore shows a nozzle-like outlet 44 which enables delivery of concentrated steam jets.
  • Figure 10 shows a gun-shaped apparatus 50 which, with a reduced bulk, includes the elements described above.
  • the user in order to obtain delivery of the steam, is to merely depress, for a more or less long time period, the pushbutton 7 controlling the electric pump 21, thus causing injection, through the fitting 30, of a predetermined amount of water which is flash steamed by the flash steam generator 31.
  • the generated steam comes out of the calibrated hole of the nozzle 35 which ensures an appropriate outlet pressure and which is so conformed as not to let out any uncompletely steamed water.
  • the steam so produced is dispensed through the selected outlet over the surface to be cleaned, so as to dissolve the dirt swept by the steam.
  • the apparatus according to the invention has the great advantage of having in a single body both the tank and the steam generator which is connected directly to the delivery outlet, is usable at any positions, that is to clean horizontal or vertical surfaces, while being always sure that the pump can dip the liquid contained in the tank, since the free end of the dip tube as weighed follows in practice the displacement of the water inside the tank, affording at all times proper operation of the apparatus, thanks also to the particular structure of the steam generator.
  • Another important aspect of the invention consists in the construction as a single compact body including all the component elements, that is the tank and steam generator, avoiding pressurized boilers which, as previously mentioned, are the source of potential hazards.
  • the materials used may be any ones according to necessity.

Claims (8)

  1. Dampfreinigungsgerät mit einem Gehäuse (1) mit Handgriffmitteln (2, 3), welches auf seiner Innenseite einen Vorratstank (16) für Kaltwasser in Verbindung - über Pumpmittel (21) - mit einer Schnellverdampfungskammer (31) mit einer Lieferdüse (35) bildet, dadurch gekennzeichnet, daß dieses Gerät weiterhin auswechselbare Auslässe (40 - 44) umfaßt, die lösbar dieser Lieferdüse (35) zuordnungsbar sind, um nach außen den in dieser Schnellverdampfungskammer (31) erzeugten Dampf zu geben, daß dieses Pumpmittel eine elektrische Pumpe (21) umfaßt und diese Elektrompumpe (31) wirksam mit dem Vorratstank (15) über ein Tauchrohr (20) aus einem flexiblen Material verbunden ist, das an seinem freien Ende mit einem Ballastkörper (22) verbunden ist, derartiger Ausbildung, daß ein Eintauchen in das Wasser unabhängig von der Benutzerstellung dieses Gerätes sichergestellt ist.
  2. Reinigungsgerät nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß dieser Vorratsbehälter (15) und diese Schnellverdampfungskammer (31) seitlich nebeneinander in Axialausrichtungsbeziehung zur Bildung dieses Gehäuses (1) ausgelegt sind.
  3. Reinigungsgerät nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß diese Handgriffsmittel ein Griffelement (2) umfassen, aus dem ein Stromversorgungskabel (4) vorsteht und ein Handgriff (3) durch diesen Kaltwasservorratstank (15) bestimmt ist.
  4. Reinigungsgerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß diese elektrische Pumpe (21) von einem Druckknopf (7) geregelt ist, der in die Stromzuführung der elektrischen Pumpe zwischengeschaltet und auf diesem Griffelement (2) angeordnet ist.
  5. Reinigungsgerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es einen Thermostat (33) zum Regeln eines elektrischen Widerstandsheizers (32) aufweist, der in ein zylindrisches oder prismatisches diese Schnellverdampfungskammer (31) bildendes Gehäuse eingebettet ist.
  6. Reinigungsgerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es einen Mantel (34) aus einem wärmeisolierenden Material umfaßt, der außerhalb dieses zylindrischen oder prismatischen diese Schnellverdampfungskammer (31) bildenden Gehäuses vorgesehen ist.
  7. Reinigungsgerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß diese Lieferdüse (35) in dieser Schnellverdampfungskammer (31) auf der der elektrischen Pumpe (21) abgelegenen Seite vorgesehen ist.
  8. Reinigungsgerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es an dieser Lieferdüse (35) eine Flanschverbindung (36) aufweist, die ein Kupplungsstück (37) für diese auswechselbaren Auslässe (40 - 44) bestimmt.
EP19860109966 1986-07-21 1986-07-21 Dampfreinigungsgerät Expired - Lifetime EP0253910B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19860109966 EP0253910B1 (de) 1986-07-21 1986-07-21 Dampfreinigungsgerät
DE8686109966T DE3681586D1 (de) 1986-07-21 1986-07-21 Dampfreinigungsgeraet.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860109966 EP0253910B1 (de) 1986-07-21 1986-07-21 Dampfreinigungsgerät

Publications (2)

Publication Number Publication Date
EP0253910A1 EP0253910A1 (de) 1988-01-27
EP0253910B1 true EP0253910B1 (de) 1991-09-18

Family

ID=8195283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860109966 Expired - Lifetime EP0253910B1 (de) 1986-07-21 1986-07-21 Dampfreinigungsgerät

Country Status (2)

Country Link
EP (1) EP0253910B1 (de)
DE (1) DE3681586D1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6595437B1 (en) 1998-04-08 2003-07-22 The Procter & Gamble Company Packaged product
US8534301B2 (en) 2008-06-02 2013-09-17 Innovation Direct Llc Steam mop
CN105916426A (zh) * 2014-01-31 2016-08-31 创科地板护理技术有限公司 表面清洁设备

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225930B (en) * 1988-07-14 1993-03-10 Abraam Riad Ghobrial Improvement in the cleaning pad
CH681209A5 (de) * 1991-08-30 1993-02-15 Franz Walser
GB2276811B (en) * 1993-03-31 1997-02-05 Gold Star Co Steam vacuum cleaner and cleaning method thereof
KR100194379B1 (ko) * 1994-05-25 1999-06-15 최진호 전기스팀 겸용 진공청소기
GB2294196A (en) * 1994-10-21 1996-04-24 Cyril Jacques Steam cleaning mop
IT1296721B1 (it) * 1997-11-26 1999-07-15 Vetrella Spa Apparecchio di pulizia a vapore
EP1023866A1 (de) * 1999-01-27 2000-08-02 Euroflex S.r.l. Leicht tragbares längliches Dampferzeugungsgerät
FR2795939B1 (fr) * 1999-07-06 2001-09-28 Claude Brenot Nettoyeur de sol
ITGE20010101A1 (it) * 2001-12-21 2003-06-21 Ariete Spa Apparecchio pulitore a vapore.
US20030142965A1 (en) * 2002-01-29 2003-07-31 Kable Enterprises Co., Ltd. Steam-cleaning appliance
US20050150261A1 (en) * 2004-01-14 2005-07-14 Conair Corporation Garment steamer with improved heater and variable steam output
EP1905887A1 (de) * 2006-09-26 2008-04-02 TI. EMME. TI S.r.l. Multifunktionelle Dampfvorrichtung
PL3354182T3 (pl) 2017-01-31 2021-09-27 Bissell Homecare, Inc. Parowe urządzenie do czyszczenia

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639365A (en) * 1951-06-08 1953-05-19 Krampe Portable steam cleaner
US2849736A (en) * 1955-05-16 1958-09-02 Albert G Kohle Fabric steaming and brushing device
US4329756A (en) * 1980-07-03 1982-05-18 Chicoine Russell G Hot water extraction carpet and floor cleaning machine
DE3031263A1 (de) * 1980-08-19 1982-02-25 Dlw Ag, 7120 Bietigheim-Bissingen Handgeraet zum behandeln einer textilen ware

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6595437B1 (en) 1998-04-08 2003-07-22 The Procter & Gamble Company Packaged product
US8534301B2 (en) 2008-06-02 2013-09-17 Innovation Direct Llc Steam mop
CN105916426A (zh) * 2014-01-31 2016-08-31 创科地板护理技术有限公司 表面清洁设备

Also Published As

Publication number Publication date
DE3681586D1 (de) 1991-10-24
EP0253910A1 (de) 1988-01-27

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