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EP0104345A1 - Procédé et appareil de nettoyage de tapis - Google Patents

Procédé et appareil de nettoyage de tapis Download PDF

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Publication number
EP0104345A1
EP0104345A1 EP83107107A EP83107107A EP0104345A1 EP 0104345 A1 EP0104345 A1 EP 0104345A1 EP 83107107 A EP83107107 A EP 83107107A EP 83107107 A EP83107107 A EP 83107107A EP 0104345 A1 EP0104345 A1 EP 0104345A1
Authority
EP
European Patent Office
Prior art keywords
carpet
liquid
nozzles
suction
rinsing
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.)
Withdrawn
Application number
EP83107107A
Other languages
German (de)
English (en)
Inventor
Gustav Madsen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0104345A1 publication Critical patent/EP0104345A1/fr
Withdrawn legal-status Critical Current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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • 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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • 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
    • 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
    • A47L11/4002—Installations of electric equipment
    • 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
    • A47L11/4027—Filtering or separating contaminants or debris
    • 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • 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
    • A47L11/4077—Skirts or splash guards
    • 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
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits

Definitions

  • the present invention relates to a method of cleaning carpets placed on a support, such as a floor, said method being of the kind comprising the following steps a-c:
  • the quantity of washing liquid is limited to the greatest extent possible, as otherwise there are risks of damage due to moisture, both in the base of the carpet itself and in the cement or glue securing the carpet to the floor,and - by evaporation and condensation - on furniture and especially wallpaper.
  • this object is attained by using a method that is characterised in
  • the cleaning liquid will be projected onto or injected into the carpet at a relatively high pressure resulting in a high velocity and correspondingly great kinetic energy, and this enables the liquid to form turbulences lifting the dirt from the base of the carpet.
  • the use of a relatively acute angle prevents the cleaning liquid from penetrating deep.into or through the base of the carpet, where it could dissolve the glue holding the carpet to the floor.
  • the very high vacuum used ensures that a far greater proportion of liquid is removed from the carpet than has previously been possible.
  • Trials have shown that the drying time, previously of the order of about two days (i.e. 48 hours), can be brought down to between 4 and 6 hours. This means that e.g. an office, in which the carpet is cleaned after normal working hours, will be ready for use already on the morning of the following day.
  • the cleaning process is divided into two main steps, viz. -
  • the present invention also relates to an apparatus for carrying out the method according to the invention.
  • Such an apparatus would be of the kind adapted to the cleaning of carpets placed on a support, such as a floor, said apparatus being of the kind comprising
  • the lips of the suction mouthpiece comprise downwardly facing convex engagement portions with a radius of curvature of the order of 5 mm.
  • a larger radius of curvature results in the effective supporting area being too large and the vacuum insufficient for effective removal of the liquid from the carpet, whereas a smaller radius of curvature results in the lips "digging into” the carpet, partly causing a locking of the cleaning head against the requisite movement, partly preventing the passage of air and liquid.
  • the lips of the suction mouthpiece are spaced from each other with a cap of the order of 3mm, preferably not exceeding 3.75 mm.
  • a larger gap is not always able to prevent the suction mouthpiece from "losing water", as the velocity of the air may be too low, whereas a narrower gap does not allow the requisite amounts of air and liquid to pass.
  • At least those parts of the lips of the suction mouthpiece likely to come into contact with the carpet being cleaned are made of a material having a low coefficient of friction with carpet textile fibre, preferably of the order of 0.08 or less, said material e.g. consisting of low-pressure polyethylene with a high degree of polymerization.
  • a low coefficient of friction prevents the mouthpiece from pull- . ing the carpet along the floor, and materials of the kind indicated are suitable, both for providing the lowco- efficient of friction and for enabling the lips to be manufactured at a reasonable cost.
  • the present invention also comprises a solution of this problem in an embodiment, which is characterised in that the apparatus consists of two sub-units, viz.:
  • the power and processing unit which may be in the form of a lorry or a road trailer to be parked outside the building concerned, can be made large enough to easily accommodate all the remaining parts of the apparatus, and also to give room for present and future additions of ancillary and auxiliary equipment, and even the necessary personnel facilities.
  • the cleaning head is closed on all sides except below, the closed space enclosing at least the rinsing nozzles and the region between the rinsing nozzles and the suction mouthpiece, preferably also a set of moistening nozzles and a rotary brush situated between the moistening nozzles and the rinsing nozzles. If hot liquid is used as rinsing liquid, this feature prevents undue cooling of the liquid by contact with passing air and evaporation and if a liquid giving off noxious fumes is used - prevents or at least limits contamination of the at- mopoherer in the space concerned.
  • the cleaning head as shown in Figure 1 comprises a frame or chassis 116 made of comparatively rigid material, such as sheet steel, which carries the various components of the cleaning head.
  • the chassis 116 rests on a symbolically shown carpet 118 placed on a floor and normally bonded or nailed to said floor, partly through a drum motor 132, partly through a suction mouthpiece 113.
  • the drum motor 132 is of a type, in which the shaft (not shown) is stationary and in this example fixed to the chassis 116 by means not shown, the housing or drum rotating relative to the shaft in a manner to enable the motor to propel the chassis 116 in the direction indicated or, when reversed, in the opposite direction.
  • the drum motor 132 may be a variable-speed, reversible motor, preferably with continuous speed variation.
  • the suction mouthpiece 113 comprises a pair of lips 113a and 113b, which may be of similar or different configuration, as seen in cross section, i.e. as seen in Figure 1.
  • each lip 113a and 113b comprises a lower rounded portion with a radius of curvature of the order of 5 mm, and the gap between the lips is in the order of 3 mm.
  • the lips 113a and 113b are shown in Figure 1 on a different scale than the rest of the cleaning head, which in practice could have a length of the order of 65 cm and a width normal to the plane of Figure 1 of the order of 50 cm.
  • the lips 113a and 113b are made of a material with a low coefficient of friction - preferably of the order of 0.08 or less - such as low-pressure polyethylene with a high degree of polymerization.
  • the suction mouthpiece 113 is connected to a suction chamber 122, which - like the mouthpiece 113 - extends along substantially the full width of the cleaning head, measured in a direction normal to the plane of Figure 1.
  • the suction chamber 122 is closed on all sides apart from its connection with the suction mouthpiece 113 and a number of pipe stubs 123 leading to an equal number of flexible suction tubes 124.
  • the pipe stubs 123 and the flexible tubes 124 of which there may be four - or any other convenient-number - are placed parallel to each other in a row normal to the plane of Figure 1, although other configurations are possible.
  • the important condition to be met by the flexible tubes 124 that connect the suction chamber 122 with a water separator 125 is that their flow resistance should be so low as not to represent a substantial hindrance to the flow of air mixed with water from the suction chamber 122 to the separator 125. Equally, the suction chamber 122 itself should not present a substantial hindrance to the fice of air and water from the suction mouthpiece 113 to the flexible tubes 124.
  • the water separator 125 contains one or more baffles illustrated symbolically by a baffle 126 shown in dotted line.
  • the separator 125 comprises an air exit tube 125a and a water exit tube 125b.
  • the air exit tube 125a is connected to a flexible suction tube 109 leading to a power unit to be described below.
  • the water exit tube 125b is connected to the input side of a water pump 128, such as a rotary displacement pump with a rubber-winged rotor of the type marketed under the trade name JABSCO, the output side of which is connected to a tube 128a, which in turn is connected to a flexible water removal tube 129 leading to said power unit to be described below.
  • Both the drum motor 132 and the motor (not shown) driving the water pump 128 may be adapted to run on high-frequency alternating current power, i.e. of a frequency in excess of 100 Hz, as this makes it possible to reduce their weight/power ratio and thus to reduce the weight of the cleaning head while maintaining a sufficient motor power for the functions concerned, i.e. the movement of the cleaning head along the carpet 118 and the removal of the water separated-out in the water separator 125.
  • the high-frequency electric power may be supplied from said power unit through a cable not shown in Figure 1.
  • a rotary brush 114 is also rotatably mounted in the chassis 116 with its axis at right angles to the direction of movement of the cleaning head and parallel to the floor, and is adapted to be driven by the drum motor 132 by means of a sprocket 133 on the motor and a sprocket 134 on the brush, interconnected by a drive chain 135.
  • the chain drive 133-135 may be dimensioned to drive the brush 114 at a peripheral speed of the order of six times that of the drum motor 132.
  • a belt drive or gears may, of course, be used instead of the chain drive shown, or the brush 114 may have its own drive means.
  • the suction chamber 122 is fixed to the chassis 116 ny means of a pivot bearing 131, allowing the suction chamber 122, and with it the suction mouthpiece 113, to turn slightly about a horizontal axis parallel to the direction of movement of the cleaning head. This enables the suction mouthpiece 133 to adapt itself to the minor irregularities in the floor bearing the carpet 118, the suction tubes 124 being flexible for this purpose.
  • nozzles Mounted in the chassis 116 by means not shown are three set of nozzles, all three sets extending across the working area of the cleaning head, i.e. transversely to the plane of Figure 1. These nozzles are, reckoned from right to left in Figure 1, i.e.
  • a set of moistening nozzles 103 adapted to direct water to the area immediately in front of and below the rotary brush 114
  • a set of rinsing nozzles 102 adapted to direct high-velocity jets of water to the area immediately in - front of and/or below the suction mouthpiece 113
  • a set of after-treatment nozzles 101 adapted to direct after-treatment liquid, such as an anti-static solution, to the carpet 118 after the passage of the suction mouthpiece 113.
  • the nozzles in each row are, of course, placed in a sufficient number per unit length to ensure that the particular area of the carpet receives a sufficient amount of the liquid concerned in closely spaced jets.
  • Water under high pressure and possibly at a suitably elevated temperature is supplied from the power unit to be described below through a flexible water supply tube 111 connected to a supply tube 104b on a valve unit 104.
  • the valve unit 104 is adapted to regulate tne flow of water from the supply tube 104b to both the moistening nozzles 103 and the rinsing nozzles 102, flowing through supply tubes 103b and 102b and distributing manifolds 103a and 102a respectively to the nozzles.
  • the valve unit 104 may be adapted to control the flow to the nozzles 103 and 102 in response to the direction of rotation of the drum motor 132, so that water only issues from these nozzles when the drum motor rotates in a direction to drive the cleaning head forward,i.e. in the direction shown, and also in response to a "dead man's button" (not shown) on the cleaning head's operating handle (not shown).
  • the requisite control arrangements could be constructed in accordance with well-known principles, and further explanation should be unnecessary in the present context.
  • the after-treatment nozzles 101 are adapted to receive liquid through a manifold lola being supplied through a supply tube 101b and a flexible supply tube 108 connected to the power unit described below.
  • the supply tube 101b could pass through a section of the valve unit 104 isolated from the tubes 103b and 102b, or through its own valve (not shown) to make it possible also to control the flow of after-treatment liquid in a similar manner to the liquid issuing through the nozzles 103 and 102.
  • the space containing the parts described above with the exception of the after-treatment nozzles 101, the front of the water separator 125 and the pump 128 is substantially closed by a cover 121, which is secured to the chassis 116 by suitable fastening means not shown, such as screws, and encloses all these parts above, behind (i.e. to the left in Figure 1) and on both sides parallel to the plane of Figure 1.
  • This space is, however, substantially open below, facing the carpet 11b, and is sealed more or less fluid-tight to the carpet by means of a flexible skirt 130 of rubber or the like, which may or may not extend all the way round the lower edge cf the cleaning head.
  • the cleaning head according to the present invention is equipped with several control elements that are not shown in Figure 1, such as a handle and control buttons - including the "dead man's button” mentioned above - and switches for controlling the various functions, such as the supply of liquid to the nozzles and the movement of the drum motor 132, as well as associated wiring.
  • control elements such as a handle and control buttons - including the "dead man's button” mentioned above - and switches for controlling the various functions, such as the supply of liquid to the nozzles and the movement of the drum motor 132, as well as associated wiring.
  • Figure 2 shows - purely diagrammatically - a power unit for use with the cleaning head described above with reference to Figure 1.
  • the unit is more than a mere power unit, as it both supplies water, which may or may not be heated, under pressure and anti-static liquid to the cleaning head and withdraws air under vacuum and used rinsing water from the unit.
  • the power unit is adapted to treat water supplied to the cleaning head, such as by a "softening" or ion-exchanging process, and to filter air and used rinsing water coming from the cleaning head before discharging same to atmosphere and sewers respectively.
  • the power unit shown in Figure 2 may contain a high-frequency electric generator for supplying power to the electric motors for the cleaning head's drum motor and pump motor,as well as equipment to serve other related purposes.
  • the power unit shown in Figure 2 contains a number of pieces of equipment now to be described.
  • the rinsing water is taken from a supply, such as the municipal water mains, through a pipe 136, leading to a water treatment unit 137.
  • the water treatment unit 137 comprises equipment to carry out the treatment required on the water found in the mains supply area concerned. As most municipal waterworks supply water with a certain amount of calcium compounds making the water “hard”, this equipment will normally comprise a “water softener” or ion exchanger for removing the calcium compounds. Other treatment sub-units may be added as and when need arises. From the water treatment unit 137 the water passes to a heating unit 138, in which the water is heated when required to the requisite temperature.
  • the heating unit may be supplied with heat in any convenient manner, such as from a burner and/or the cooling water of an internal combustion engine in an associated vehicle or in the power unit itself, and the temperature of the water leaving the heating unit may be thermostatically controlled using known technology.
  • a high-pressure pump 139 shown symbolically as a single-stage centrifugal pump, but a multiple-stage centrifugal pump or other types of pumps may be used, depending on the speed of rotation of the drive motor available.
  • a vacuum pump 140 capable of delivering a vacuum of at least 40%, i.e.
  • an absolute pressure corresponding to 60% of atmospheric pressure draws air from the flexible suction tube 109, the other end of which is connected to the cleaning head as shown in Figure 1.
  • this air may contain various impurities, such as dust and/or droplets of dirty rinsing water
  • the outlet side of the vacuum pump 140 is connected to the inlet side of a filter 141 of any suitable type, the outlet side of which discharges to atmosphere. If the air coming from the cleaning head is hot, its heat may be extracted by means of a heat exchanger (not shown) and used for preheating the water supplied to the water heater 138 or some other useful purpose.
  • the dirty rinsing water separated from the suction air in the water separator 125 shown in Figure 1 and transported through the flexible water removal tube 129 by means of the water pump 128 is conducted through a filter 142 (optional) and to the sewers. Any heat contained in this water coming from the water separator 125 may, of course, also be extracted by means of a heat exchanger (not shown) and used as indicated above.
  • the power unit shown in Figure 2 also contains a high-frequency electric generator 143, shown symbolically as being driven by an internal combustion engine 144, although other means for driving the generator 143 could be used, such as an electric motor connected to the mains, or the auxiliary drive shaft of an associated traction vehicle.
  • the term "high frequency” is to be understood as comprising frequencies of the order of 100 Hz and above, or at least sufficiently high to allow a reduction in the weight of the iron parts of the electric motors concerned, i.e. the drum motor 132 and the motor for the water pump 128 shown in Figure 1.
  • the wiring concerned is not shown in the Figures.
  • Shown in Figure 2 is also an anti-static liquid tank 145, supplying anti-static liquid to the cleaning head as shown in Figure 1 by means of a liquid pump -146 and the flexible supply tube 108.
  • the power unit shown in Figure 2 may contain additional equipment not shown, such as for heating, cooling, ventilating (including forced ventilation for accelerated drying of the carpet after cleaning) and/or lighting the room or rooms in which the carpet or carpets to be cleaned is/ are situated. If other liquids than water, such as chlorinated hydrocarbons, are used for rinsing the carpet or carpets, this equipment may also comprise means for supplying breathing air to the person or persons operating the cleaning head so as to prevent poisoning by noxious fumes.
  • water as used in describing the various parts of the equipment shown in the Figures and explaining their function should be understood as comprising any liquid suitable for use in cleaning carpets in the manner described herein.
  • the carpet to be cleaned is first made wet or moist with a suitable detergent or surfactant, such as a solution of soap or a sulphonated fatty alcohol.
  • a suitable detergent or surfactant such as a solution of soap or a sulphonated fatty alcohol.
  • the detergent is given a suitable period of time to act upon the particles of dirt embedded in or adhering to the carpet, such as between 5 and 15 minutes, although both longer and shorter periods are possible, depending on circumstances. The period should, however, be sufficiently long to allow the detergent or surfactant to reduce the surface tension between the liquid and the particles of dirt.
  • the next step in the process consists of running the cleaning head shown in Figure 1, suitably connected through flexible'tubes, conduits and cables to the power unit shown in Figure 2, across the carpet.
  • this step which may be characterised as a "multiple step"
  • the following sub-processes take place as the cleaning head is moved by the drum motor 132 as from left to right in Figure 1:
  • this drying-out may be accelerated by forced ventilation, if necessary accompanied by additional heating, of the space concerned.
  • the rinsing water with its content of particles of dirt - and also a small proportion of detergent or surfactant in solution - is carried by the air likewise sucked in through the mouthpiece 113 through the flexible suction tubes 124 and into the water separator 125, where the water is separated out and removed from the cleaning head through the water pump 128 and the water removal tube 129, while the air leaves the cleaning head through the flexible suction tube 109.
  • the angle a of maximum approximately 30° has been chosen to avoid the risk of the rinsing water penetrating too far into or even through the base of the carpet and dissolving the glue or cement, with which the carpet is secured to the floor.
  • the quantity of water ejected through the rinsing nozzles 102 - as determined by the supply pressure and the flow cross-section and number of nozzles per unit length across the direction of movement of the cleaning head - should be sufficient to ensure that the cleaning head need only be used once on each are of the carpet.
  • Use of "soft" water - either in the natural state or “softened” by means of the water treatment unit 137 shown in Figure 2 to a degree of about 5°dH - improves the rinsing action and reduces the amount of solid matter left in the carpet after the cleaning process, and also reduces the risk of the rinsing nozzles 102 being blocked by residues of calcium compounds, especially when using hot rinsing water.
  • the temperature of the rinsing water should be adjusted according to the material in the carpet to be cleaned, but should be held as high as possible, partly in order to kill bacteria, fungi, parasites and eggs thereof as effectively as possible, paxtly to accelerate the drying-out process after the cleaning. It should be noted that if the detergent or surfactant applied before the rinsing process contains noxious agents designed to kill such organisms, these agents will be removed in quantity by the subsequent rinsing, and the risk of their contaminating the working space above the carpet is thus considerably reduced, if not altogether eliminated.
  • the closed space provided above the carpet 118 by the cover 121 and the water separator 125 prevents undue cooling of the rinsing water jets issuing from the rinsing nozzles 102, and also of the jets of moistening water issuing from the moistening nozzles 103. If hot water is used for moistening and rinsing, this results in the portion of the carpet 118 in this area being held at a high temperature for a period of time, so that the possibility of.killing parasite's eggs, which are known to be very heat-resistant, is increased.
  • the suction mouthpiece is thought to function in the following manner, the front lip 113a and the rear lip 113b having two distinct functions:
  • the cleaning head may be provided with means (not shown) for holding one or more weights secured to the cleaning head in the region above the suction mouthpiece 113.
  • a corresponding reduction in the force urging the suction mouthpiece 113 into engagement with the carpet could be provided by placing counterweights on a cantilever extending to the opposite side of the drum motor 132, i.e. to the right as seen in figure 1.
  • a weight capable of sliding adjustment between these two positions could be used.
  • the sub-atmospheric pressure in the suction mouthpiece 113 produces an additional force urging the mouthpiece 113 downwards.
  • the spacing between the tangency areas of the two. lips 113a and 113b with the carpet should not be too great, as the force produced by the suction may effectively lock the mouthpiece 113 against movement.
  • Another reason for not having too large a spacing between the lips l13a and 113b - in this aspect the gap defining the minimum flow cross-sectional area between them - is to avoid the suction mouthpiece "losing water" due to too low air velocity in the gap.

Landscapes

  • Treatment Of Fiber Materials (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP83107107A 1982-08-06 1983-07-20 Procédé et appareil de nettoyage de tapis Withdrawn EP0104345A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK354182 1982-08-06
DK3541/82 1982-08-06

Publications (1)

Publication Number Publication Date
EP0104345A1 true EP0104345A1 (fr) 1984-04-04

Family

ID=8124057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107107A Withdrawn EP0104345A1 (fr) 1982-08-06 1983-07-20 Procédé et appareil de nettoyage de tapis

Country Status (4)

Country Link
EP (1) EP0104345A1 (fr)
JP (1) JPS5946929A (fr)
AU (1) AU1728383A (fr)
NO (1) NO832819L (fr)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583075A1 (fr) * 1985-06-07 1986-12-12 Braye Jean Francois Procede de coloration et de renovation extemporanee de surface de revetement de sol et dispositif de mise en oeuvre
US4956891A (en) * 1990-02-21 1990-09-18 Castex Industries, Inc. Floor cleaner
EP0343129A3 (fr) * 1988-05-20 1991-03-13 Felice Scaringi Dispositif pour nettoyer les surfaces comme le sol avec l'enlèvement de liquide de nettoyage
EP0434907A3 (en) * 1989-09-07 1991-08-07 Gisowatt S.P.A. Industria Elettrodomestici Floor-scrubbing machine
EP0567044A1 (fr) * 1992-04-23 1993-10-27 T.P.A. IMPEX ITALIA S.r.l. Appareil ménager polyvalent
DE4403289A1 (de) * 1994-02-03 1995-08-10 Licentia Gmbh Bodenpflegegerät
DE4406320A1 (de) * 1994-02-25 1995-08-31 Schaefer Juergen Verfahren, Vorrichtung und Flüssigkeit zum Reinigen von textilen Flächen-Bespannungstuchen
EP1010389A3 (fr) * 1998-04-08 2001-10-04 The Procter & Gamble Company Procédé de nettoyage de tapis ou revêtements de sol similaires
EP1044645A3 (fr) * 1999-04-15 2002-12-04 Alto U.S. Inc. Machine pour extraire des liquides et procédé de nettoyage de surfaces de sol
US6896742B2 (en) * 2001-05-31 2005-05-24 Tennant Company Brushless scrub head for surface maintenance
WO2009062154A3 (fr) * 2007-11-09 2009-06-18 Tennant Co Unité de prépulvérisation de couvre-sol faisant appel à une eau électrochimiquement activée et procédé de nettoyage de couvre-sol
US7836543B2 (en) 2006-02-10 2010-11-23 Tennant Company Method and apparatus for producing humanly-perceptable indicator of electrochemical properties of an output cleaning liquid
DE102009023657A1 (de) 2009-05-28 2010-12-02 Thomas Pfisterer Teppichklopfmaschine
US7891046B2 (en) 2006-02-10 2011-02-22 Tennant Company Apparatus for generating sparged, electrochemically activated liquid
US8007654B2 (en) 2006-02-10 2011-08-30 Tennant Company Electrochemically activated anolyte and catholyte liquid
US8012339B2 (en) 2006-02-10 2011-09-06 Tennant Company Hand-held spray bottle having an electrolyzer and method therefor
US8012340B2 (en) 2006-02-10 2011-09-06 Tennant Company Method for generating electrochemically activated cleaning liquid
US8016996B2 (en) 2006-02-10 2011-09-13 Tennant Company Method of producing a sparged cleaning liquid onboard a mobile surface cleaner
US8025786B2 (en) 2006-02-10 2011-09-27 Tennant Company Method of generating sparged, electrochemically activated liquid
US8025787B2 (en) 2006-02-10 2011-09-27 Tennant Company Method and apparatus for generating, applying and neutralizing an electrochemically activated liquid
US8046867B2 (en) 2006-02-10 2011-11-01 Tennant Company Mobile surface cleaner having a sparging device
US8236147B2 (en) 2008-06-19 2012-08-07 Tennant Company Tubular electrolysis cell and corresponding method
US8319654B2 (en) 2008-06-19 2012-11-27 Tennant Company Apparatus having electrolysis cell and indicator light illuminating through liquid
US8337690B2 (en) 2007-10-04 2012-12-25 Tennant Company Method and apparatus for neutralizing electrochemically activated liquids
US8371315B2 (en) 2008-12-17 2013-02-12 Tennant Company Washing systems incorporating charged activated liquids
US8485140B2 (en) 2008-06-05 2013-07-16 Global Patent Investment Group, LLC Fuel combustion method and system
EP3189760A1 (fr) * 2016-01-08 2017-07-12 Wetrok AG Machine de nettoyage du sol
ITUB20160996A1 (it) * 2016-02-23 2017-08-23 Opo D O O Metodo per il mantenimento in efficienza di un gruppo addolcitore.

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FR2400348A1 (fr) * 1977-08-19 1979-03-16 Gen Signal Corp Appareils pour le nettoyage des sols, tapis et analogues
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Cited By (32)

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FR2583075A1 (fr) * 1985-06-07 1986-12-12 Braye Jean Francois Procede de coloration et de renovation extemporanee de surface de revetement de sol et dispositif de mise en oeuvre
EP0343129A3 (fr) * 1988-05-20 1991-03-13 Felice Scaringi Dispositif pour nettoyer les surfaces comme le sol avec l'enlèvement de liquide de nettoyage
EP0434907A3 (en) * 1989-09-07 1991-08-07 Gisowatt S.P.A. Industria Elettrodomestici Floor-scrubbing machine
US4956891A (en) * 1990-02-21 1990-09-18 Castex Industries, Inc. Floor cleaner
EP0567044A1 (fr) * 1992-04-23 1993-10-27 T.P.A. IMPEX ITALIA S.r.l. Appareil ménager polyvalent
US5400462A (en) * 1992-04-23 1995-03-28 T.P.A. Impex Italia S.R.L. Multi-purpose appliance for household work
DE4403289A1 (de) * 1994-02-03 1995-08-10 Licentia Gmbh Bodenpflegegerät
DE4406320A1 (de) * 1994-02-25 1995-08-31 Schaefer Juergen Verfahren, Vorrichtung und Flüssigkeit zum Reinigen von textilen Flächen-Bespannungstuchen
EP1010389A3 (fr) * 1998-04-08 2001-10-04 The Procter & Gamble Company Procédé de nettoyage de tapis ou revêtements de sol similaires
EP1044645A3 (fr) * 1999-04-15 2002-12-04 Alto U.S. Inc. Machine pour extraire des liquides et procédé de nettoyage de surfaces de sol
US6896742B2 (en) * 2001-05-31 2005-05-24 Tennant Company Brushless scrub head for surface maintenance
US8012339B2 (en) 2006-02-10 2011-09-06 Tennant Company Hand-held spray bottle having an electrolyzer and method therefor
US8156608B2 (en) 2006-02-10 2012-04-17 Tennant Company Cleaning apparatus having a functional generator for producing electrochemically activated cleaning liquid
US8719999B2 (en) 2006-02-10 2014-05-13 Tennant Company Method and apparatus for cleaning surfaces with high pressure electrolyzed fluid
US7891046B2 (en) 2006-02-10 2011-02-22 Tennant Company Apparatus for generating sparged, electrochemically activated liquid
US8007654B2 (en) 2006-02-10 2011-08-30 Tennant Company Electrochemically activated anolyte and catholyte liquid
US8603320B2 (en) 2006-02-10 2013-12-10 Tennant Company Mobile surface cleaner and method for generating and applying an electrochemically activated sanitizing liquid having O3 molecules
US8012340B2 (en) 2006-02-10 2011-09-06 Tennant Company Method for generating electrochemically activated cleaning liquid
US8016996B2 (en) 2006-02-10 2011-09-13 Tennant Company Method of producing a sparged cleaning liquid onboard a mobile surface cleaner
US8025786B2 (en) 2006-02-10 2011-09-27 Tennant Company Method of generating sparged, electrochemically activated liquid
US8025787B2 (en) 2006-02-10 2011-09-27 Tennant Company Method and apparatus for generating, applying and neutralizing an electrochemically activated liquid
US8046867B2 (en) 2006-02-10 2011-11-01 Tennant Company Mobile surface cleaner having a sparging device
US7836543B2 (en) 2006-02-10 2010-11-23 Tennant Company Method and apparatus for producing humanly-perceptable indicator of electrochemical properties of an output cleaning liquid
US8337690B2 (en) 2007-10-04 2012-12-25 Tennant Company Method and apparatus for neutralizing electrochemically activated liquids
WO2009062154A3 (fr) * 2007-11-09 2009-06-18 Tennant Co Unité de prépulvérisation de couvre-sol faisant appel à une eau électrochimiquement activée et procédé de nettoyage de couvre-sol
US8485140B2 (en) 2008-06-05 2013-07-16 Global Patent Investment Group, LLC Fuel combustion method and system
US8236147B2 (en) 2008-06-19 2012-08-07 Tennant Company Tubular electrolysis cell and corresponding method
US8319654B2 (en) 2008-06-19 2012-11-27 Tennant Company Apparatus having electrolysis cell and indicator light illuminating through liquid
US8371315B2 (en) 2008-12-17 2013-02-12 Tennant Company Washing systems incorporating charged activated liquids
DE102009023657A1 (de) 2009-05-28 2010-12-02 Thomas Pfisterer Teppichklopfmaschine
EP3189760A1 (fr) * 2016-01-08 2017-07-12 Wetrok AG Machine de nettoyage du sol
ITUB20160996A1 (it) * 2016-02-23 2017-08-23 Opo D O O Metodo per il mantenimento in efficienza di un gruppo addolcitore.

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NO832819L (no) 1984-02-07
JPS5946929A (ja) 1984-03-16

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