EP0949005A1 - Verpacktes Produkt zur Reinigung - Google Patents

Verpacktes Produkt zur Reinigung Download PDF

Info

Publication number
EP0949005A1
EP0949005A1 EP98870073A EP98870073A EP0949005A1 EP 0949005 A1 EP0949005 A1 EP 0949005A1 EP 98870073 A EP98870073 A EP 98870073A EP 98870073 A EP98870073 A EP 98870073A EP 0949005 A1 EP0949005 A1 EP 0949005A1
Authority
EP
European Patent Office
Prior art keywords
product
spray arm
pump
liquid reservoir
electrically driven
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Withdrawn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
EP98870073A
Other languages
English (en)
French (fr)
Inventor
John Russel Lawson
Marcel Vandebroek, (NMN)
Jelle Dankert Vuijk
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to EP98870073A priority Critical patent/EP0949005A1/de
Priority to EP98870243A priority patent/EP0949006A1/de
Priority to IL13692399A priority patent/IL136923A0/xx
Priority to TR2000/01827T priority patent/TR200001827T1/xx
Priority to DE69903605T priority patent/DE69903605T2/de
Priority to HU0003607A priority patent/HUP0003607A3/hu
Priority to IL13441199A priority patent/IL134411A0/xx
Priority to EP99917342A priority patent/EP0999896B1/de
Priority to AU35488/99A priority patent/AU746785B2/en
Priority to CN99800932A priority patent/CN1272807A/zh
Priority to CA002302863A priority patent/CA2302863C/en
Priority to SK519-2000A priority patent/SK5192000A3/sk
Priority to CA002302975A priority patent/CA2302975A1/en
Priority to US09/485,031 priority patent/US6595437B1/en
Priority to EP99870158A priority patent/EP1010389A3/de
Priority to IL13692499A priority patent/IL136924A0/xx
Priority to EP99870157A priority patent/EP1004264A3/de
Priority to CA002295477A priority patent/CA2295477C/en
Priority to PCT/US1999/007347 priority patent/WO1999051354A1/en
Priority to CA002363594A priority patent/CA2363594A1/en
Priority to TR2000/00554T priority patent/TR200000554T1/xx
Priority to TR2000/01826T priority patent/TR200001826T1/xx
Priority to ARP990101606A priority patent/AR013029A1/es
Priority to TW089113384A priority patent/TW464539B/zh
Priority to TW088109621A priority patent/TW452505B/zh
Publication of EP0949005A1 publication Critical patent/EP0949005A1/de
Priority to NO20001349A priority patent/NO20001349D0/no
Priority to US09/553,492 priority patent/US6560806B1/en
Priority to US09/553,038 priority patent/US6578224B1/en
Priority to CN00120448A priority patent/CN1295884A/zh
Priority to CN00120447A priority patent/CN1295883A/zh
Priority to NO20011247A priority patent/NO20011247D0/no
Priority to NO20011248A priority patent/NO20011248D0/no
Priority to US10/613,289 priority patent/US20040011886A1/en
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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/62—Arrangements for supporting spraying apparatus, e.g. suction cups
    • B05B15/628—Arrangements for supporting spraying apparatus, e.g. suction cups of variable length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/656—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the flow conduit length is changeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric

Definitions

  • the present invention relates to a packaged product for the delivery of cleaning products comprising a surfactant, and to the use of the packaged product.
  • Trigger spray devices are known for the purposes of domestic cleaning, for example for cleaning hard surfaces such as windows, baths and ovens, as well as for spot cleaning of floor coverings such as carpets.
  • Most trigger spray devices which are commercially available are manually activated, that is to say that the devices comprise a trigger which is activated by hand by the consumer.
  • this manual activation generates liquid pressure in a chamber by means of a positive deplacement pump by means of a positive deplacement pump which in turn drives the liquid from the chamber usually through a dispensing nozzle.
  • Many dispensing patterns are possible, but a conical spray is the most common.
  • the object of the invention is firstly to provide a packaged product comprising a package having a liquid reservoir for containing a cleaning product, and a means for delivering the product in a labour efficient way and in a uniform manner.
  • a further object of the invention is to provide a new use for the packaged product.
  • this object is achieved by a packaged product in which the means for delivering the liquid comprises an electrically driven pump, and further comprises a spray arm, the spray arm being either extended or extendible and having at least one dispensing opening so that in operation, the product is pumped by the electrically driven pump from the liquid reservoir, through the spray arm, to the product dispensing opening from which it is dispensed. It is further preferred that the spray arm communicates with the liquid reservoir by means of a flexible connector.
  • a new use is achieved in which a cleaning product is applied to carpets and other floor coverings using a device comprising an electrically driven pump.
  • the packaged product of the present invention comprises an electrically driven pump.
  • the electrically driven pump is used to pump product from the reservoir through the spraying arm and out of the product dispensing opening (or openings) located in the spraying arm. In this way the product can be applied to the surface to be treated.
  • the product dispensing openings are preferably nozzles which are selected so that the sprayed product takes the form of a continuous stream or film, or of a discontinuous stream or film of fine particles, or of a mist, or of a foam. It is most preferred that the spray pattern is in the form of fine particles because this is the most efficient way to cover a large surface area with a small volume of product with an even coverage.
  • the spray pattern may be a flat spray, taking the form of a triangle with its apex at the nozzle, or it may take the form of a conical spray, again with its apex at the nozzle.
  • the spray can be created, for example, by an impinchment type of nozzle, or by using spinner technology, or an oscillating fluid circuit.
  • Other embodiments include a foaming nozzle or a deflection nozzle.
  • the product output is from about 20 ml/minute to about 400 ml/minute, and preferably from about 150 ml/minute to about 250 ml/minute for carpet cleaning.
  • the spray arm has one nozzle, but it may also have multiple nozzles located along its length.
  • the spray arm makes it easier to control where the cleaning product is sprayed. For example, when cleaning carpets the spray arm makes it easier to avoid spraying product onto furniture and walls, and also enables access into corners which would otherwise be difficult to reach. Furthermore, an ergonomically designed spray arm avoids the need for the user to have a bent back when spraying.
  • the electrically driven pump may be, for example, a gear pump, an impeller pump, a piston pump, a screw pump, a peristaltic pump, a diaphragm pump, or any other miniature pump.
  • the pump is a gear pump with a typical speed between 6000 and 12000 rpm.
  • the electrically driven pump must be driven by a means such as an electric motor.
  • the electric motor typically produces a torque between 1 and 20 mN.m.
  • the electric motor must, in turn be provided with a power source.
  • the power source may be either mains electricity (optionally via transformer), or it may be a throw-away battery, or rechargeable battery. Most preferred are one or more AA rechargeable or disposable batteries, the batteries being housed in the package.
  • the voltage output of the battery is typically between 1.5 and 12 Volts, with a preferred output between 3 and 6V.
  • the packaged product according to the present invention is preferably hand-held, and therefore preferably comprises a holding means.
  • the holding means may be any sort of handle which will allow the user to pick up the packaged product and to carry it to the place where the spraying is to be carried out.
  • the handle can be part of the container or of the implement housing. It is likely that the packaged product will be carried around a whole room when a carpet is being cleaned.
  • the handle may be a simple protrusion or indentation which may be gripped by the user, or it may be a more sophisticated design for ergonomic reasons.
  • the spray arm may be rigidly extended. However such a spray arm can be difficult to store, and the spray arm is preferably extendible either by means of telescopic or foldable configuration.
  • a telescopic configuration can be a liquid tight telescopic mechanism, or can have a tube running inside.
  • the liquid reservoir is preferably provided with a venting means in order to allow air into the reservoir as the product is pumped out. Venting can be obtained through, for example, one way valve, venting membrane, or mechanically or electrically operated valve. Alternatively the product may be contained within a flexible bag within the liquid reservoir, so that the flexible bag collapses as the product is pumped out.
  • the liquid reservoir is also preferably provided with a means to be releasably engaged with the pump/motor assembly. This means that when the reservoir is empty it can be removed from the pump/motor assembly and either discarded or refilled. The full liquid reservoir can then be reconnected to the pump/motor assembly for further use.
  • the switch can be any suitable and ergonomic design to be operated usually by fingers or thumb.
  • the switch can be provided with child safety features.
  • the cleaning products useful in the present invention can comprise various active components.
  • the most useful components include surfactant; builders; bleach and bleach activators; enzymes and enzyme stabilisers; soil release agents, chelating agents; antiredeposition agents; aqueous or non aqueous dispersing agents; brightener; suds suppressor; dye transfer inhibiting agents.
  • Nonlimiting examples of surfactants useful herein typically at levels from about 1% to about 55%, by weight include the conventional C 11 -C 18 alkyl benzene sulfonates ("LAS") and primary, branched-chain and random C 10- C 20 alkyl sulfates (“AS”), the C 10- C 18 secondary (2,3) alkyl sulfates of the formula CH 3 (CH 2 ) x (CHOSO 3- M + ) CH 3 and CH 3 (CH 2 ) y (CHOSO 3- M + ) CH 2 CH 3 where x and (y + 1) are integers of at least about 7, preferably at least about 9, and M is a water-solubilizing cation, especially sodium, unsaturated sulfates such as oleyl sulfate, the C 10- C 18 alkyl alkoxy sulfates (“AE x S”; especially EO 1-7 ethoxy sulfates), C 10- C 18 alkyl alkoxy carboxylates (especially the EO 1
  • the conventional nonionic and amphoteric surfactants such as the C 12- C 18 alkyl ethoxylates ("AE") including the so-called narrow peaked alkyl ethoxylates and C 6 -C 12 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), C 12- C 18 betaines and sulfobetaines ("sultaines"), C 10- C 18 amine oxides, and the like, can also be included in the overall compositions.
  • the C 10 -C 18 N-alkyl polyhydroxy fatty acid amides can also be used. Typical examples include the C 12 -C 18 N-methylglucamides. See WO 9,206,154.
  • sugar-derived surfactants include the N-alkoxy polyhydroxy fatty acid amides, such as C 10 -C 18 N-(3-methoxypropyl) glucamide.
  • the N-propyl through N-hexyl C 12 -C 18 glucamides can be used for low sudsing.
  • C 10 -C 20 conventional soaps may also be used. If high sudsing is desired, the branched-chain C 10 -C 16 soaps may be used. Mixtures of anionic and nonionic surfactants are especially useful. Other conventional useful surfactants are listed in standard texts.
  • Figure 1 shows a diagrammatic representation of a device 1 comprising a liquid reservoir.
  • the reservoir is a conventional bottle 2 with a handle 3.
  • the device further comprises a unit 4 which is mounted on top of the bottle 2 and which contains the electrically driven pump 5, an electrical motor 6, and a rechargeable battery 7.
  • An electrical circuit (not illustrated) is completed by means of a switch 8 in order to operate the motor 6 and drive the pump 5.
  • Figure 1 also shows a recharging socket 9.
  • the inlet side of the pump is connected to a dip tube 10 which extends within the bottle 2 in order to remove product under vacuum from within the bottle when the pump 5 is operating.
  • the outlet side of the pump is connected to an extendible spray arm 20 which comprises two pieces 21, 22.
  • Figure 1 also shows an anti-dripping valve 24 and a nozzle 25 mounted at the free end of the spray arm.
  • free end it is meant the end which is not connected to the pump.
  • Figure 2a shows a diagrammatic representation of a device 1 comprising a liquid reservoir.
  • the reservoir is a conventional bottle 2.
  • the device further comprises a unit 4 which is mounted on top of the bottle 2 and which contains the electrically driven pump 5, an electrical motor 6, and a rechargeable battery 7.
  • An electrical circuit (not illustrated) is completed by means of a switch 8 in order to operate the motor 6 and drive the pump 5.
  • Figure 2 also shows a recharging socket 9.
  • the inlet side of the pump is connected to a dip tube 10 which extends within the bottle 2 in order to remove product under vacuum from within the bottle when the pump 5 is operating.
  • the outlet side of the pump is connected to a flexible spray arm 120 which comprises a flexible portion 121 and a rigid portion 122.
  • Figure 2 also shows an anti-dripping valve 24 and a nozzle 25 mounted at the free end of the spray arm.
  • Figure 2b shows a diagrammatic representation of a device 1 which is similar to the device shown in figure 2a. However in figure 2b the unit 4 is not mounted directly on to the bottle 2.
  • the flexible portion 121 is connected to the inlet side of the electrically driven pump 5.
  • the dip tube 10 is formed by the free end of the flexible portion.
  • FIG. 3 shows a diagrammatic representation of a device 1 which can be used with either one hand, or with two hands.
  • the device is shown in cut-away cross-section.
  • the device comprises a liquid reservoir which is a conventional bottle 9 from which liquid is pumped by an electrical pump/motor (5, 6) through a coiled hose 221 to a spray arm 220.
  • the housing 204 also comprises a battery 7 and a switch 8.
  • the spray arm can be attached to the housing of the device (for example by a clipping mechanism) or can be detached from the body of the device, the device being held in one hand, and the spray arm being held in the other hand.
  • the housing 204 is designed so that the bottle 9 is inverted when the device is held by the handle 3 for use. The advantages of this configuration are that no dip tube is required, and fully emptying the bottle is easier. Furthermore, the short distance from the liquid to the pump inlet will allow fast priming of the pump 5 when it is unprimed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP98870073A 1998-04-08 1998-04-08 Verpacktes Produkt zur Reinigung Withdrawn EP0949005A1 (de)

Priority Applications (33)

Application Number Priority Date Filing Date Title
EP98870073A EP0949005A1 (de) 1998-04-08 1998-04-08 Verpacktes Produkt zur Reinigung
EP98870243A EP0949006A1 (de) 1998-04-08 1998-11-09 Verpacktes Produkt
CA002295477A CA2295477C (en) 1998-04-08 1999-04-07 A packaged product for delivery of cleaning products
CA002363594A CA2363594A1 (en) 1998-04-08 1999-04-07 Process for cleaning carpets, floor coverings and other large surfaces
DE69903605T DE69903605T2 (de) 1998-04-08 1999-04-07 Verpacktes produkt
PCT/US1999/007347 WO1999051354A1 (en) 1998-04-08 1999-04-07 A packaged product
IL13441199A IL134411A0 (en) 1998-04-08 1999-04-07 A packaged product
EP99917342A EP0999896B1 (de) 1998-04-08 1999-04-07 Verpacktes produkt
AU35488/99A AU746785B2 (en) 1998-04-08 1999-04-07 A packaged product
TR2000/01827T TR200001827T1 (tr) 1998-04-08 1999-04-07 Halıları ve benzerlerini temizlemeye mahsus bir yöntem
CA002302863A CA2302863C (en) 1998-04-08 1999-04-07 A process of cleaning carpets and the like
SK519-2000A SK5192000A3 (en) 1998-04-08 1999-04-07 A packaged product
CA002302975A CA2302975A1 (en) 1998-04-08 1999-04-07 A process of cleaning carpets and the like
US09/485,031 US6595437B1 (en) 1998-04-08 1999-04-07 Packaged product
EP99870158A EP1010389A3 (de) 1998-04-08 1999-04-07 Verfahren zur Reinigung von Teppichen und dergleichen
TR2000/00554T TR200000554T1 (tr) 1998-04-08 1999-04-07 Paketlenmiş bir ürün.
EP99870157A EP1004264A3 (de) 1998-04-08 1999-04-07 Verfahren zur Teppichreinigung
IL13692399A IL136923A0 (en) 1998-04-08 1999-04-07 A process of cleaning carpets and the like
HU0003607A HUP0003607A3 (en) 1998-04-08 1999-04-07 A packag of product
CN99800932A CN1272807A (zh) 1998-04-08 1999-04-07 成套产品
IL13692499A IL136924A0 (en) 1998-04-08 1999-04-07 A process of cleaning carpets and the like
TR2000/01826T TR200001826T1 (tr) 1998-04-08 1999-04-07 Halıları ve benzerlerini temizlemeye mahsus bir yöntem
ARP990101606A AR013029A1 (es) 1998-04-08 1999-04-08 Unidad de un producto empacado para la entrega de productos, uso de la unidad de producto empacado, proceso para limpiar una alfombra, el recubrimiento de un piso u otra superficie grande y equipo transportable.
TW089113384A TW464539B (en) 1998-04-08 1999-06-09 A process of cleaning carpets and the like
TW088109621A TW452505B (en) 1998-04-08 1999-06-09 Packaged product for the delivery of products, process of cleaning a carpet, a floor covering or another large surface, and packaged product kit for the delivery of products
NO20001349A NO20001349D0 (no) 1998-04-08 2000-03-15 Produktenhet
US09/553,038 US6578224B1 (en) 1998-04-08 2000-04-20 Process of cleaning carpets and the like
US09/553,492 US6560806B1 (en) 1998-04-08 2000-04-20 Process of cleaning carpets and the like
CN00120448A CN1295884A (zh) 1998-04-08 2000-07-10 清洁地毯和类似物品的方法
CN00120447A CN1295883A (zh) 1998-04-08 2000-07-10 清洁地毯和类似物品的方法
NO20011248A NO20011248D0 (no) 1998-04-08 2001-03-12 Anordning og fremgangsmÕte for rengjøring av tepper o.l.
NO20011247A NO20011247D0 (no) 1998-04-08 2001-03-12 Anordning og fremgangsmÕte for rengjøring av tepper o.l.
US10/613,289 US20040011886A1 (en) 1998-04-08 2003-07-03 Packaged product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98870073A EP0949005A1 (de) 1998-04-08 1998-04-08 Verpacktes Produkt zur Reinigung

Publications (1)

Publication Number Publication Date
EP0949005A1 true EP0949005A1 (de) 1999-10-13

Family

ID=8237018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98870073A Withdrawn EP0949005A1 (de) 1998-04-08 1998-04-08 Verpacktes Produkt zur Reinigung

Country Status (1)

Country Link
EP (1) EP0949005A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10933433B2 (en) 2017-03-16 2021-03-02 Positec Power Tools (Suzhou) Co., Ltd. Hand-held high-pressure cleaning machine and adapter
US10968899B2 (en) 2015-11-20 2021-04-06 Positec Power Tools (Suzhou) Co., Ltd. Pump unit and handheld high pressure washer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904116A (en) 1975-01-09 1975-09-09 Disston Inc Portable cordless sprayer
US3993250A (en) 1975-05-19 1976-11-23 Shure Alan H Apparatus for spraying liquid materials
GB2232068A (en) * 1989-05-30 1990-12-05 Kenneth Sidney Tedder Cleaning apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904116A (en) 1975-01-09 1975-09-09 Disston Inc Portable cordless sprayer
US3993250A (en) 1975-05-19 1976-11-23 Shure Alan H Apparatus for spraying liquid materials
GB2232068A (en) * 1989-05-30 1990-12-05 Kenneth Sidney Tedder Cleaning apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10968899B2 (en) 2015-11-20 2021-04-06 Positec Power Tools (Suzhou) Co., Ltd. Pump unit and handheld high pressure washer
USRE49589E1 (en) 2015-11-20 2023-07-25 Positec Power Tools (Suzhou) Co., Ltd Pump unit and handheld high pressure washer
US10933433B2 (en) 2017-03-16 2021-03-02 Positec Power Tools (Suzhou) Co., Ltd. Hand-held high-pressure cleaning machine and adapter

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