WO1993010311A1 - Hand washing unit - Google Patents
Hand washing unit Download PDFInfo
- Publication number
- WO1993010311A1 WO1993010311A1 PCT/GB1992/002165 GB9202165W WO9310311A1 WO 1993010311 A1 WO1993010311 A1 WO 1993010311A1 GB 9202165 W GB9202165 W GB 9202165W WO 9310311 A1 WO9310311 A1 WO 9310311A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soap
- water
- hand washing
- unit according
- hands
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
- G08B21/245—Reminder of hygiene compliance policies, e.g. of washing hands
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/046—Adding soap, disinfectant, or the like in the supply line or at the water outlet
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
- E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
- E03C1/057—Electrical control devices, e.g. with push buttons, control panels or the like touchless, i.e. using sensors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K2210/00—Combinations of water taps, soap dispensers and hand dryers
Definitions
- This invention relates to a device for washing and rinsing hands, and is particularly suitable for use in premises where food is prepared or in other premises where regular hand washing is essential and needs to be moni ⁇ tored.
- Hand washing units which include proxim ⁇ ity sensors which automatically switch on a water supply when hands are inserted into a wash basin, thereby avoiding the need for manual contact with any taps or switches and thus reducing the risk of cross-contamination.
- the washing water supplied has a hand washing detergent or disinfectant component dissolved in it, for example an iodophor.
- Hygiene regulations in premises such as restau ⁇ rants, shops and factories in which food is handled have become increasingly stringent in recent years.
- the management is held responsible for ensuring that all employees wash their hands properly, for example after using the lavatory, before returning to work. It is howev ⁇ er difficult for hand washing regulations to be properly enforced unless it can be comprehensively monitored.
- an employee may be seen to visit a wash basin it is difficult to ensure that he does more than run his fingers under the tap.
- soap is used during each hand wash, or indeed to provide soap which can be used without the risk of cross-contaminatio .
- a hand washing and rinsing unit compris ⁇ ing a basin with a water supply and means for auto ⁇ matically switching on the water supply when hands are inserted into the basin, there being also provided a liquid soap dispenser arranged to dispense soap automatically with the water during a part of the period for which the water supply is switched on.
- the water is preferably supplied by way of a mixing valve by means of which the liquid soap is injected into the water supply.
- the supply of water and soap is controlled by timing relays triggered by a proximity sensor so that water flows for an initial period of a few seconds after which soap is fed to the mixing valve for a few seconds, for example by means of a dosing pump r and thereafter water continues to flow for a period of for example 30 to 40 seconds to enable the soap to be rinsed off.
- the system may be used in conjunction with an electronic monitoring system which records each hand wash.
- a recording mechanism may for example be operated by means of user codes so as to record the number of times each person working on the premises uses the hand wash unit during the course of a day.
- the system can be linked to a computer which records the name of each person using the unit and the time and duration of each use.
- the proper use of the unit may be arranged simply to trigger a counter so as to indicate to the management the frequency of use.
- the counter is preferably arranged not to register a use until soap has been dispensed.
- FIG. 1 is a partially cutaway front view of a hand washing and rinsing unit in accordance with the invention
- FIG. 2 is a part sectional view along the line II- II in Fig. 1;
- FIG. 3 is a schematic diagram showing how the parts of the system of Figs. 1 and 2 interconnect.
- FIG. 4 is a perspective view of a second embodiment of the invention.
- a hand wash unit comprises a basin 12 which may suitably be made from stain ⁇ less steel but could for example be made from aluminium or glass fibre reinforced plastics.
- the basin is secured to a housing 10, suitably of the same material, by means of screws 11 which pass through overlapping flanges 13 on each side of the basin.
- the housing 10 is provided with means (not shown) for securing it to a wall.
- the wash basin 12 is provided with a conventional waste water outlet 14 and sink trap 15.
- the supply of water to the basin is by way of a mixer valve 16 through which passes water from an inlet pipe 18 and which is arranged when required to mix into the water a predetermined quantity of a liquid soap fed in through a conduit 24.
- the water pipe 18 is fed by a cold water supply 21 and a hot water supply 23, both of which pass through a thermostatically controlled mixer 22 which can be preset to supply water to the basin at a suitable hand washing tem ⁇ perature such as 40 to 50°C.
- the thermostatic control 22 is preferably of a fail-safe type so as to avoid scalding. From the thermos atic mixer, the water flows at the required temperature through an electrically controlled solenoid valve 20 which is arranged to turn the supply on and off in response to control mechanisms to be described in more detail below.
- Liquid soap is supplied from a container 28 to the inlet conduit 24 by means of an electrically operated chemical dosing pump 26 which is arranged to be switched on and off by a central control system described below, in accordance with a predetermined programme.
- an infrared proximity sensor 30 On each of the inner side walls 29 of the basin there is provided an infrared proximity sensor 30. Between them these two sensors can detect when hands are inserted into the basin and send an electrical signal to the central control system to switch on the water supply.
- the central control for the system generally indicated by 32, may suitably be provided on a printed circuit board secured to the rear wall of the unit, with suitable protection against water leaks.
- the central control unit 32 is supplied by a mains transformer 36 which in turn is con ⁇ nected to an ordinary AC mains supply.
- the transformer also provides the power necessary for the soap dosing pump 26.
- Connected to the unit 32 are the dosing pump 26, a user code input panel 34, the proximity sensors 30 and the solenoid valve 20.
- An output line 40 from the control unit is connected to a computer with a display screen and print ⁇ er.
- the unit 34 could comprise a magnetic strip reader operated by personal user cards.
- the employee inserts his hands into the wash basin 12, causing one or both of the proximity sensors 30 to send a signal to the control unit 32.
- This activates a series of timer relays and first operates the solenoid valve 20 to switch on the water supply via the mixer unit and nozzle 16.
- a second timer relay switches on the dosing pump 26 to supply liquid soap to the mixer unit 16 so that a soap solution is fed on to the users hands.
- the initial running period will have shown the user where the water jet is, ensuring that none of the soap need be missed and thus flushed unused down the waste pipe.
- the flow of soap continues for a period of for example four to six seconds.
- the pump 26 is then switched off but water con ⁇ tinues to flow into the basin for a period of some 25 to 40 seconds to enable the hands to be washed properly and rinsed.
- the supply cycle will be interrupted, but will be started again from the same point when the hands are reinserted, dispensing water only.
- the solenoid valve 20 is switched off and the unit is ready for another user.
- the whole washing cycle is monitored by the central computer via the line 40. This will record the name of the user, as indicated by the user code keyed in, and will also record the time of use. If the central computer is moni ⁇ toring more than one unit (and it could of course be moni ⁇ toring a large number of units throughout the building) it will also record the location of the unit used. The com- puter will also record the total duration of the time during which the user's hands were in the basin. If for example the user simply inserts his hands for a few sec ⁇ onds, not long enough to start the soap supply, he will not be recorded as having washed his hands at all. Having held his hands in the basin long enough to receive the soap solution, the user will have little choice but to hold them there long enough to rinse the soap off again.
- the computer record can be monitored by the person responsible, who can for example get the computer to print out a list of "defaulters" who have either not used the system or have used it for a period insufficient to effect a proper wash.
- the system can be set to flush the unit through with water at predetermined intervals, for example two hours. This flushing could also if desired be set to inject into the system a dose of a suitable disinfectant so as to keep the mixer head and the waste outlet free from microbial contamination.
- FIG. 4 shows a perspective view from below of a simplified wash and rinse unit in accordance with a second embodiment of the invention.
- This unit is designed to be positioned above a separate wash hand basin, which may be of conventional design.
- the unit comprises a housing 50 containing the soap supply, valves and other components, which may be broadly as described in connection with Figures 1 to 3.
- the housing has a forwardly projecting hood 52 on the underside of which are provided a water outlet 56, a soap dispensing outlet 58 and an infrared sensor 60.
- the soap and water are supplied separately, albeit through adjacent outlets, rather than through a mixing valve. They are however sufficiently close to ensure that if the hands are placed below the water outlet they will also catch the soap when it is dispensed.
- Pipes 53 and 54 entering the housing at the bottom supply hot and cold water to the device.
- a digital counter 62 Positioned on the top of the housing is a digital counter 62, arranged to register one wash each time the soap dispenser operates.
- the infrared proximity sensor switches on the water supply through the outlet 56, the water being maintained at a suitable temperature such as 40°-50°C by a thermostatic control.
- a valve is automatically actuated to dispense a measured quantity of liquid soap through the outlet 58.
- a warning light may be provided, to be illuminated when the soap is dispensed.
- the soap reservoir which may suitably hold 3 to 5 litres of liquid soap, preferably incorporates a detector arranged to be actuated when the soap level falls below a preset minimum such as 0.5 litres .
- the detector can be arranged to operate a low soap warning light to alert staff to top up the soap reservoir. Should the warning light be ignored and the soap reservoir run dry, the warning system may for example be arranged to flash or illuminate a verbal message, and to shut down the system so that neither soap nor water is available. Such an event preferably also triggers a signal elsewhere, for example, in the manager's office so that action can immediately be taken.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69222654T DE69222654T2 (en) | 1991-11-22 | 1992-11-23 | HAND WASHING MACHINE |
EP92923900A EP0616658B2 (en) | 1991-11-22 | 1992-11-23 | Hand washing unit |
US08/790,286 US6125482A (en) | 1991-11-22 | 1992-11-23 | Hand washing unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919124819A GB9124819D0 (en) | 1991-11-22 | 1991-11-22 | Hand washing unit |
GB9124819.5 | 1991-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993010311A1 true WO1993010311A1 (en) | 1993-05-27 |
Family
ID=10705048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1992/002165 WO1993010311A1 (en) | 1991-11-22 | 1992-11-23 | Hand washing unit |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0616658B2 (en) |
AT (1) | ATE159067T1 (en) |
AU (1) | AU2950892A (en) |
DE (1) | DE69222654T2 (en) |
GB (1) | GB9124819D0 (en) |
WO (1) | WO1993010311A1 (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0711877A1 (en) * | 1994-11-11 | 1996-05-15 | Nicola Borriello | Faucet assembly including a metering element for delivering cleaning, disinfectant liquids and the like |
EP0758702A1 (en) * | 1995-08-10 | 1997-02-19 | Hmsi Limited | Handwash station |
EP0848114A2 (en) * | 1996-12-13 | 1998-06-17 | Hmsi Limited | Handwash apparatus |
US5793653A (en) * | 1994-07-12 | 1998-08-11 | Segal; Noel B. | Apparatus and method for monitoring compliance with handsink use regimen |
US6125482A (en) * | 1991-11-22 | 2000-10-03 | H.M.S.I. Limited | Hand washing unit |
EP0978290A3 (en) * | 1998-07-06 | 2000-12-20 | Take-One Office, Ltd. | Cleaning faucet device for cleaning human body with ozone-water |
WO2001002652A1 (en) * | 1999-07-05 | 2001-01-11 | Paul Gavan Johnson | Sanitary apparatus |
US6236953B1 (en) | 1994-07-12 | 2001-05-22 | Compliance Control, Inc. | System for monitoring compliance with apparatuses having predetermined operating parameters |
WO2002029168A1 (en) * | 2000-10-03 | 2002-04-11 | Edo Lang | Device for controlling and/or regulating the supply of a medium, devices of this type comprising washing or drying units and a corresponding method |
WO2002094073A1 (en) * | 2001-05-23 | 2002-11-28 | Deb Ip Limited | Self contained dispenser incorporating a user monitoring system |
EP0830482B1 (en) * | 1995-06-07 | 2003-09-17 | Sloan Valve Company | Wash station |
WO2003079278A1 (en) * | 2002-03-12 | 2003-09-25 | Johnson Raymond C | Pattern recognition system and method for monitoring hand washing or application of a disinfectant |
WO2004081300A1 (en) | 2003-03-11 | 2004-09-23 | Edo Lang | Method for controlling the water supply in a sanitary installation |
EP1555351A1 (en) * | 1996-08-07 | 2005-07-20 | Sunnybrook and Women's College Health Sciences Centre | Self-cleaning hand washer |
US6970574B1 (en) | 2001-03-13 | 2005-11-29 | Johnson Raymond C | Pattern recognition system and method for monitoring hand washing or application of a disinfectant |
US8249295B2 (en) | 2001-03-13 | 2012-08-21 | Johnson Raymond C | System for monitoring hand cleaning compliance |
US8413952B2 (en) | 2003-03-11 | 2013-04-09 | Oblamatik Ag | Method for controlling the water supply in a sanitary installation |
EP2695562A1 (en) * | 2012-08-07 | 2014-02-12 | Airbus Operations GmbH | Smart multi-soap dispenser |
US9349267B2 (en) | 1999-10-29 | 2016-05-24 | Hill-Rom Services, Inc. | Hygiene monitoring system |
US9773403B2 (en) | 2015-07-28 | 2017-09-26 | Hill-Rom Services, Inc. | Hygiene compliance system |
WO2018160894A1 (en) * | 2017-03-02 | 2018-09-07 | Kohler Co. | Handwashing station |
US10607471B2 (en) | 2015-10-06 | 2020-03-31 | Hill-Rom Services, Inc. | Hand hygiene monitoring system with customizable thresholds |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002511923A (en) * | 1997-02-18 | 2002-04-16 | シー. ジョンソン,レイモンド | Apparatus and method for monitoring hand washing |
US7682464B2 (en) | 2006-10-31 | 2010-03-23 | Resurgent Health & Medical, Llc | Automated washing system with compliance verification |
US7818083B2 (en) | 2006-10-31 | 2010-10-19 | Resurgent Health & Medical, Llc | Automated washing system with compliance verification and automated compliance monitoring reporting |
US7698770B2 (en) | 2006-10-31 | 2010-04-20 | Resurgent Health & Medical, Llc | Automated appendage cleaning apparatus with brush |
US7607443B2 (en) | 2006-10-31 | 2009-10-27 | Resurgent Health & Medical, Llc | Wash chamber for automated appendage-washing apparatus |
US8400309B2 (en) | 2008-04-29 | 2013-03-19 | Resurgent Health & Medical, Llc | Hygiene compliance |
DE102020113442A1 (en) | 2020-05-18 | 2021-11-18 | Schmid's Teig-Spezialitäten GmbH & Co. KG | Water flow regulator and hand washing method |
US11549244B2 (en) | 2020-11-24 | 2023-01-10 | Renande Alteon | Multifunctional smart faucet |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639920A (en) * | 1970-06-08 | 1972-02-08 | American Standard Inc | Programmed plumbing service |
US4398310A (en) * | 1979-03-26 | 1983-08-16 | Maschinenfabrik Ad. Schulthess & Co. A.G. | Washstand device |
US4942631A (en) * | 1988-06-29 | 1990-07-24 | Barry Robertson | Hand sanitizing station |
EP0396039A1 (en) * | 1989-05-03 | 1990-11-07 | SIN-BIOS S.r.l. Ambiente e biotecnologie | Automatic hand cleaning device and relevant process |
US5031258A (en) * | 1989-07-12 | 1991-07-16 | Bauer Industries Inc. | Wash station and method of operation |
-
1991
- 1991-11-22 GB GB919124819A patent/GB9124819D0/en active Pending
-
1992
- 1992-11-23 EP EP92923900A patent/EP0616658B2/en not_active Expired - Lifetime
- 1992-11-23 AU AU29508/92A patent/AU2950892A/en not_active Abandoned
- 1992-11-23 DE DE69222654T patent/DE69222654T2/en not_active Expired - Lifetime
- 1992-11-23 AT AT92923900T patent/ATE159067T1/en not_active IP Right Cessation
- 1992-11-23 WO PCT/GB1992/002165 patent/WO1993010311A1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639920A (en) * | 1970-06-08 | 1972-02-08 | American Standard Inc | Programmed plumbing service |
US4398310A (en) * | 1979-03-26 | 1983-08-16 | Maschinenfabrik Ad. Schulthess & Co. A.G. | Washstand device |
US4942631A (en) * | 1988-06-29 | 1990-07-24 | Barry Robertson | Hand sanitizing station |
EP0396039A1 (en) * | 1989-05-03 | 1990-11-07 | SIN-BIOS S.r.l. Ambiente e biotecnologie | Automatic hand cleaning device and relevant process |
US5031258A (en) * | 1989-07-12 | 1991-07-16 | Bauer Industries Inc. | Wash station and method of operation |
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6125482A (en) * | 1991-11-22 | 2000-10-03 | H.M.S.I. Limited | Hand washing unit |
US6236953B1 (en) | 1994-07-12 | 2001-05-22 | Compliance Control, Inc. | System for monitoring compliance with apparatuses having predetermined operating parameters |
US5793653A (en) * | 1994-07-12 | 1998-08-11 | Segal; Noel B. | Apparatus and method for monitoring compliance with handsink use regimen |
EP0711877A1 (en) * | 1994-11-11 | 1996-05-15 | Nicola Borriello | Faucet assembly including a metering element for delivering cleaning, disinfectant liquids and the like |
EP0830482B1 (en) * | 1995-06-07 | 2003-09-17 | Sloan Valve Company | Wash station |
EP0758702A1 (en) * | 1995-08-10 | 1997-02-19 | Hmsi Limited | Handwash station |
GB2304038A (en) * | 1995-08-10 | 1997-03-12 | Hmsi Limited | Handwash station |
GB2328867A (en) * | 1995-08-10 | 1999-03-10 | Hmsi | Handwash station |
GB2328867B (en) * | 1995-08-10 | 1999-04-28 | Hmsi | Handwash station |
GB2304038B (en) * | 1995-08-10 | 1999-04-28 | Hmsi Limited | Handwash station |
EP1555351A1 (en) * | 1996-08-07 | 2005-07-20 | Sunnybrook and Women's College Health Sciences Centre | Self-cleaning hand washer |
EP0848114A3 (en) * | 1996-12-13 | 1998-10-28 | Hmsi Limited | Handwash apparatus |
EP0848114A2 (en) * | 1996-12-13 | 1998-06-17 | Hmsi Limited | Handwash apparatus |
EP0978290A3 (en) * | 1998-07-06 | 2000-12-20 | Take-One Office, Ltd. | Cleaning faucet device for cleaning human body with ozone-water |
WO2001002652A1 (en) * | 1999-07-05 | 2001-01-11 | Paul Gavan Johnson | Sanitary apparatus |
US9349267B2 (en) | 1999-10-29 | 2016-05-24 | Hill-Rom Services, Inc. | Hygiene monitoring system |
US9396638B2 (en) | 1999-10-29 | 2016-07-19 | Hill-Rom Services, Inc. | Hygiene monitoring system |
US9715817B2 (en) | 1999-10-29 | 2017-07-25 | Hill-Rom Services, Inc. | Hygiene monitoring system |
US9911312B2 (en) | 1999-10-29 | 2018-03-06 | Hill-Rom Services, Inc. | Hygiene monitoring system |
AU2001285644B2 (en) * | 2000-10-03 | 2006-04-27 | Edo Lang | Device for controlling and/or regulating the supply of a medium, devices of this type comprising washing or drying units and a corresponding method |
WO2002029168A1 (en) * | 2000-10-03 | 2002-04-11 | Edo Lang | Device for controlling and/or regulating the supply of a medium, devices of this type comprising washing or drying units and a corresponding method |
US6970574B1 (en) | 2001-03-13 | 2005-11-29 | Johnson Raymond C | Pattern recognition system and method for monitoring hand washing or application of a disinfectant |
US8249295B2 (en) | 2001-03-13 | 2012-08-21 | Johnson Raymond C | System for monitoring hand cleaning compliance |
WO2002094073A1 (en) * | 2001-05-23 | 2002-11-28 | Deb Ip Limited | Self contained dispenser incorporating a user monitoring system |
WO2003079278A1 (en) * | 2002-03-12 | 2003-09-25 | Johnson Raymond C | Pattern recognition system and method for monitoring hand washing or application of a disinfectant |
WO2004081300A1 (en) | 2003-03-11 | 2004-09-23 | Edo Lang | Method for controlling the water supply in a sanitary installation |
US8413952B2 (en) | 2003-03-11 | 2013-04-09 | Oblamatik Ag | Method for controlling the water supply in a sanitary installation |
US9314137B2 (en) | 2012-08-07 | 2016-04-19 | Airbus Operations Gmbh | Smart multi-soap dispenser |
EP2695562A1 (en) * | 2012-08-07 | 2014-02-12 | Airbus Operations GmbH | Smart multi-soap dispenser |
US9773403B2 (en) | 2015-07-28 | 2017-09-26 | Hill-Rom Services, Inc. | Hygiene compliance system |
US9959743B2 (en) | 2015-07-28 | 2018-05-01 | Hill-Rom Services, Inc. | Hygiene compliance system |
US10607471B2 (en) | 2015-10-06 | 2020-03-31 | Hill-Rom Services, Inc. | Hand hygiene monitoring system with customizable thresholds |
WO2018160894A1 (en) * | 2017-03-02 | 2018-09-07 | Kohler Co. | Handwashing station |
CN110352026A (en) * | 2017-03-02 | 2019-10-18 | 科勒公司 | Wash platform |
US10718105B2 (en) | 2017-03-02 | 2020-07-21 | Kohler Co. | Handwashing station |
US11492788B2 (en) | 2017-03-02 | 2022-11-08 | Kohler Co. | Handwashing station |
US11697930B2 (en) | 2017-03-02 | 2023-07-11 | Kohler Co. | Handwashing station |
Also Published As
Publication number | Publication date |
---|---|
AU2950892A (en) | 1993-06-15 |
DE69222654D1 (en) | 1997-11-13 |
EP0616658A1 (en) | 1994-09-28 |
ATE159067T1 (en) | 1997-10-15 |
EP0616658B1 (en) | 1997-10-08 |
DE69222654T2 (en) | 1998-05-20 |
EP0616658B2 (en) | 2001-05-23 |
GB9124819D0 (en) | 1992-01-15 |
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