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WO1996026795A1 - Enceinte de lavage automatisee a lames d'air - Google Patents

Enceinte de lavage automatisee a lames d'air Download PDF

Info

Publication number
WO1996026795A1
WO1996026795A1 PCT/US1996/000837 US9600837W WO9626795A1 WO 1996026795 A1 WO1996026795 A1 WO 1996026795A1 US 9600837 W US9600837 W US 9600837W WO 9626795 A1 WO9626795 A1 WO 9626795A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
cleansing
hand
user
cleansing apparatus
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.)
Ceased
Application number
PCT/US1996/000837
Other languages
English (en)
Inventor
Christopher Peter Maybach
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.)
Meritech Inc
Original Assignee
Meritech Inc
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 Meritech Inc filed Critical Meritech Inc
Priority to AU47635/96A priority Critical patent/AU4763596A/en
Publication of WO1996026795A1 publication Critical patent/WO1996026795A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • 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
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/48—Drying by means of hot air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/80—Implements for cleaning or washing the skin of surgeons or patients
    • 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

  • the present invention relates to revolving cylindrical cleansing chambers having an air knife blower suited for washing and drying hands.
  • Touchless automated handwashing devices are designed to provide the proper amount of antimicrobial solution in a set time.
  • the present art uses recommended handwashing methodology. Additionally these systems diminish the deterrent effects of friction and irritation associated with frequent manual handwashing.
  • the '628, '651, and '495 patents teach a touchless handwashing system having a pair of rotating cylinders. These cylinders contain slits which function as rotating nozzles. The rotating cylinder is housed in a basin for the wash, rinse, and cleaning liquids. The rotating nozzles provide a helical array of spray to the hands starting at the forearm and finishing at the finger tips. A control center allows the user to select and program the desired cleaning cycle. A soap, disinfectant and rinse cycle is shown. The invention pioneers the use of rotating nozzles to simulate pulsating or varying pressure cleaning fluid jets which produce a trampoline effect to remove dirt.
  • the '628 patent teaches an automatic sensing means, multi function control means, programmable purge, wash, dwell, rinse and clean cycles, a ten second complete wash and rinse cycle with precise chemical formula and precise volumetric control of wash and rinse water to eliminate residue on the hands.
  • the primary object of the present invention is to provide an air knife blower on a rotating nozzle hand cleaning system.
  • Another object of the present invention is to provide a hand sensing air "OFF" circuit which turns the t-Q ,fta ⁇ dB.fc OTT retracted.
  • FIG. l (prior art) is a front perspective view of a free standing cleansing unit having no air knives.
  • FIG. 2 is a left side plan view of a cleansing unit having an air knife system.
  • FIG. 3 is a front perspective view of the unit shown in FIG. 2.
  • FIG. 4 is a top plan view of the unit shown in FIGS. 2, 3 with the air knife cover partially cut-away.
  • FIG. 5 is a left side view of a hand sensing system.
  • FIG. 6 is a block diagram of the controller and sensors.
  • FIG. 7 is a block diagram of the controller logic.
  • cleansing unit 1 is a free standing hand and forearm washing unit.
  • Cabinet 22 includes a pair of parallel cylindrical hand openings 3, 4. .E.D. panel 5 shows the user how to interface with the cleansing unit 1.
  • An electronic controller is housed behind L.E.D. panel 5.
  • the soap container storage area is shown at 6.
  • a photoeye 7 senses the presence of a hand in hand opening 4 and starts the washing cycle.
  • cleansing unit 10 is a free standing hand and forearm washing unit having an air knife assembly.
  • the air knife cover 11 is mounted on the top surface 12 of cabinet 13.
  • Cabinet 13 has a front cover 16.
  • a compressed air inlet 14 powers the air knife assembly (shown in FIG. 4) via air line 15.
  • the solenoid valve 17 is a two position valve normally closed. Nominal input to air inlet 14 is fifteen standard cubic feet per minute at a minimum of 50 PSI.
  • the cleansing unit 10 is shown to have a control panel 200 containing a diffuse photoeye 7.
  • Hand port 201 has air knives 203, 204, 205.
  • Hand port 202 has air knives 206, 207, 208.
  • Air knives 203-208 are known in the art. They are mounted about one inch above the washing cylinder(s) shown as 8 in FIG. 5. The air knives 203-208 are mounted with about a 15_ slope pointing down into the hand ports 201, 202. This ensures that the water blown off the hands is directed down into the handports where it will drain.
  • the air knives produce a thin high velocity layer of air in a fan shaped pattern. The air removes water from the hands by knocking it off (because the air is not heated - water removal by evaporation is minimal) . The operator must rotate and translate the hands in this thin high velocity air layer for effective water removal.
  • control panel 200 houses the diffuse photoeye 7.
  • the diffuse photoeye is DC powered and sends infrared signal 72 toward the hand 71 which bounces signal 73 back to the sensing means in diffuse photoeye 7.
  • the current sink line 74 is active when photoeye 7 senses reflected light of its own frequency 73.
  • the gate array logic 75 Upon receiving a sinking circuit from line 74 the gate array logic 75 initiates a wash cycle.
  • the gate array logic could also be written to accept a current source from the photoeye 7 in lieu of a current sink.
  • Other means for no touch control include retroreflective photoeye sensing, convergent/divergent photoeye sensing, thru scan photoeye sensing, ultrasonic sensing, and proximity sensing.
  • the flow chart illustrates the electronic module 1803 as powered by converted AC power 1801 to 24 V/DC power
  • the no touch activation 1804 gives a continuous signal thru the current sink line 1804a to the electronic module 1803.
  • the thermal sensor 1805 sends a signal to the electronic module 1803, anti- scalding is in effect .
  • shut down occurs for too high a temperature.
  • the electric module 1803 will communicate with different components of the invention.
  • the L.E.D. indicator for user information, on panel 5 is to warn or inform the user during operation.
  • the motor 1808 which powers the cylinders 8 (FIG. 5) has a motor torque control 1807 with a current limit chip to prevent finger injury.
  • the mix valve 1809 for soap and water, the rinse valve 1810 for water only, or the soap valves 1811 for soap or self clean in accordance with the pressure sensor 1812 can be operated by the electronic module 1803.
  • the pressure sensor 1812 is a transducer which senses from 0 psia to 14.7 psia. It can communicate to the electronic module 1803 if a problem occurs in the pressure.
  • a basin water level sensor 1813 has a float switch that will send a signal to the electronic module 1803.
  • the solenoid valve 17 is controlled by the unit's electronics module shown as 1803.
  • the valve 17 remains closed during the wash cycle and opens when the water flow stops.
  • the valve 17 will remain open for as long as the user's hands block the photoeye 7 up to a limit of 30 seconds. If the user momentarily unblocks the photoeye (minimum of 10 milliseconds, maximum of 2 seconds) and then reblocks the photoeye 7, then the timer will reset to 0 and begin a new 30 second cycle. This allows the user an unlimited amount of time for drying. But, it ensures that all accidental blockage of the photoeye (soap scum, paper towel, photoeye failure, etc.) will not allow air flow for any longer than 30 seconds .
  • FIG. 7 will allow us to move thru a cycle of the invention at any state.
  • the hot water supply enters the machine through a one-way check value 1814.
  • Cold water enters the machine first through a ball valve 1815 and then through a one-way check valve 1816.
  • the two check valves 1814 and 1816 prevent the hot and cold water from mixing outside of the hand washing device.
  • the hot and cold water then join together and enter a filter 1817 which removes particulates.
  • the temperature of the water is controlled by the position of the cold water ball valve 1815 which can range from fully open (low temp) to fully closed (high temp) ) .
  • Water exiting the filter 1817 enters a pressure regulator 1818 and water pressure gauge 1819a by which the operating pressure of the machine is set. Water then enters and flows through a backflow preventer 1819b which protects the potable water supply from contamination with cleaning chemicals. After the backflow preventer 1819b, the water flows around a thermistor probe 1805 which is mounted in the flow stream.
  • the thermistor 1805 works in conjunction with the electronic module 1803 to allow the machine to operate only when the water temperature at the thermistor 1805 probe is at or below a preset limit - usually 120_ F. If the water temperature exceeds this limit the water valves 1810 and 1809a are closed by the electronics module 1803 to prevent scalding the user.
  • Non-scalding water will pass the thermistor 1805 and enter a tee.
  • the rinse circuit of the tee passes through the rinse solenoid valve 1810, to prevent soap from being mixed.
  • the rinse cycle is controlled by the electronic module 1803.
  • the soap mixing leg of the plumbing circuit allows the water to pass through a wash solenoid valve 1809a which is controlled by the electronic module 1803 before it gets to the aspirator 1809b.
  • the aspirator 1809b is a device which creates a suction at the expense of the water pressure.
  • the vacuum signal is used to draw soap from their containers and mix it with the water stream. Soap is drawn from either solution container 1811a or solution container 1811b by solenoid l ⁇ llaa or l ⁇ llbb respectively.
  • a shuttle valve 1821 is used after solution solenoid l ⁇ llaa and solution solenoid l ⁇ llbb.
  • the electronic module 1803 will open the self-clean solenoid valve l ⁇ llcc and allow self-cleaning fluid (preferably ammonium chloride) to flow from its solution container 1811c through the self-clean solenoid valve l ⁇ llcc and the shuttle valve 1821 into the aspirator 1809b Self- cleaning fluid will ]o ⁇ n the water stream into the rotating cylinder 8 and then to the system drain 50 (see U.S. Pat. No. 4,925,495)
  • the shuttle valve 1821 allows the use of three different fluids 1811a or 1811b and 1811c with only a single aspirator 1809b Soap or self-cleaner in the plumbing between the shuttle valve 1821 and the aspirator is pressure monitored by a pressure transducer 1812 installed in the line.
  • This pressure transducer 1812 creates a variable voltage signal inversely proportional to the absolute pressure of the fluid.
  • the electronic module 1803 will sense this voltage signal and thereby determine the amount of soap flowing. It will alert the user at panel 200 if any anomalies are found (e.g. empty soap bottle) .

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

L'invention porte sur des buses tournantes (201, 202) placées dans un cylindre (3, 4) formant un lave-mains (1) qui au moyen d'un programme assure des cycles de vidange, lavage, attente, rinçage, lavage automatique et séchage des mains. En 10 secondes, 99 % des bactéries sont tuées sans provoquer d'irritation même en cas de lavages quotidiens répétés. Des lames d'air (203, 208) éliminent l'eau des mains de l'utilisateur pour l'empêcher de couler sur le sol.
PCT/US1996/000837 1995-02-27 1996-01-25 Enceinte de lavage automatisee a lames d'air Ceased WO1996026795A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47635/96A AU4763596A (en) 1995-02-27 1996-01-25 Automated cleansing chamber with air knife

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39665295A 1995-02-27 1995-02-27
US08/396,652 1995-02-27

Publications (1)

Publication Number Publication Date
WO1996026795A1 true WO1996026795A1 (fr) 1996-09-06

Family

ID=23568102

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/000837 Ceased WO1996026795A1 (fr) 1995-02-27 1996-01-25 Enceinte de lavage automatisee a lames d'air

Country Status (2)

Country Link
AU (1) AU4763596A (fr)
WO (1) WO1996026795A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6706243B1 (en) * 1999-05-06 2004-03-16 Intecon Systems, Inc. Apparatus and method for cleaning particulate matter and chemical contaminants from a hand
FR2879910A1 (fr) * 2004-12-27 2006-06-30 Bruno Jacques Andre Sylvestre Lave mains aseptique a cycle de lavage programme
EP1839546A4 (fr) * 2004-10-18 2011-12-07 Veltek Europ S L Sechoir a main
US20130136669A1 (en) * 2010-01-14 2013-05-30 Bernard Feldain Appliance for disinfecting the hands of a user
WO2013114096A1 (fr) 2012-01-30 2013-08-08 Safeway Hygiene Services Limited Dispositif de lavage
WO2012156739A3 (fr) * 2011-05-17 2013-11-14 Dyson Technology Limited Sèche-mains
US8950019B2 (en) 2007-09-20 2015-02-10 Bradley Fixtures Corporation Lavatory system
US8997271B2 (en) 2009-10-07 2015-04-07 Bradley Corporation Lavatory system with hand dryer
CN105011832A (zh) * 2015-08-02 2015-11-04 刘乐凝 一种洗手器
US9267736B2 (en) 2011-04-18 2016-02-23 Bradley Fixtures Corporation Hand dryer with point of ingress dependent air delay and filter sensor
WO2016082635A1 (fr) * 2014-11-26 2016-06-02 李锋华 Machine de lavage des mains
US9486118B2 (en) 2011-05-17 2016-11-08 Dyson Technology Limited Fixture for a sink
CN106351293A (zh) * 2015-08-02 2017-01-25 德化县丽德家居用品有限公司 一种带风干功能的洗手盆
CN106480938A (zh) * 2015-08-02 2017-03-08 德化县丽德家居用品有限公司 一种带喷气孔的洗手盆
US9758953B2 (en) 2012-03-21 2017-09-12 Bradley Fixtures Corporation Basin and hand drying system
US9982422B2 (en) 2011-05-17 2018-05-29 Dyson Technology Limited Fixture for a sink
US10041236B2 (en) 2016-06-08 2018-08-07 Bradley Corporation Multi-function fixture for a lavatory system
US10100501B2 (en) 2012-08-24 2018-10-16 Bradley Fixtures Corporation Multi-purpose hand washing station
US11015329B2 (en) 2016-06-08 2021-05-25 Bradley Corporation Lavatory drain system
IT202000011023A1 (it) * 2020-05-14 2021-11-14 Marco Ferrari Dispositivo di disinfezione, particolarmente per mani.

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220424A (en) * 1963-05-06 1965-11-30 Warren W Nelson Hand sanitizer
US3699984A (en) * 1971-01-12 1972-10-24 Charles T Davis Cleaning and sterilizing device
US3918987A (en) * 1973-11-09 1975-11-11 Rudolph J Kopfer Surgeon hand and arm scrubbing apparatus
US4219367A (en) * 1978-10-05 1980-08-26 Cary George R Jr Surgical prep hand cleaning
US4402331A (en) * 1981-03-27 1983-09-06 Delta Manufacturing And Sales, Inc. Portable lavage device
US4670010A (en) * 1984-03-26 1987-06-02 Giorgio Dragone Liquid-nebulizing device for the dermatological treatment of the hands
US4688585A (en) * 1985-04-10 1987-08-25 Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg Automatic washer, especially for cleaning hands and sterilizing articles
US4817651A (en) * 1987-10-26 1989-04-04 Scientific Growth, Inc. Hand and forearm cleansing apparatus
US4925495A (en) * 1988-01-25 1990-05-15 Scientific Growth, Inc. Washing apparatus and method
US4942631A (en) * 1988-06-29 1990-07-24 Barry Robertson Hand sanitizing station
US5265628A (en) * 1992-06-02 1993-11-30 Meritech, Inc. Automated cleansing chamber

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220424A (en) * 1963-05-06 1965-11-30 Warren W Nelson Hand sanitizer
US3699984A (en) * 1971-01-12 1972-10-24 Charles T Davis Cleaning and sterilizing device
US3918987A (en) * 1973-11-09 1975-11-11 Rudolph J Kopfer Surgeon hand and arm scrubbing apparatus
US4219367A (en) * 1978-10-05 1980-08-26 Cary George R Jr Surgical prep hand cleaning
US4402331A (en) * 1981-03-27 1983-09-06 Delta Manufacturing And Sales, Inc. Portable lavage device
US4670010A (en) * 1984-03-26 1987-06-02 Giorgio Dragone Liquid-nebulizing device for the dermatological treatment of the hands
US4688585A (en) * 1985-04-10 1987-08-25 Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg Automatic washer, especially for cleaning hands and sterilizing articles
US4817651A (en) * 1987-10-26 1989-04-04 Scientific Growth, Inc. Hand and forearm cleansing apparatus
US4925495A (en) * 1988-01-25 1990-05-15 Scientific Growth, Inc. Washing apparatus and method
US4942631A (en) * 1988-06-29 1990-07-24 Barry Robertson Hand sanitizing station
US5265628A (en) * 1992-06-02 1993-11-30 Meritech, Inc. Automated cleansing chamber

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6706243B1 (en) * 1999-05-06 2004-03-16 Intecon Systems, Inc. Apparatus and method for cleaning particulate matter and chemical contaminants from a hand
EP1839546A4 (fr) * 2004-10-18 2011-12-07 Veltek Europ S L Sechoir a main
FR2879910A1 (fr) * 2004-12-27 2006-06-30 Bruno Jacques Andre Sylvestre Lave mains aseptique a cycle de lavage programme
US8950019B2 (en) 2007-09-20 2015-02-10 Bradley Fixtures Corporation Lavatory system
US8997271B2 (en) 2009-10-07 2015-04-07 Bradley Corporation Lavatory system with hand dryer
US20130136669A1 (en) * 2010-01-14 2013-05-30 Bernard Feldain Appliance for disinfecting the hands of a user
US9267736B2 (en) 2011-04-18 2016-02-23 Bradley Fixtures Corporation Hand dryer with point of ingress dependent air delay and filter sensor
US9441885B2 (en) 2011-04-18 2016-09-13 Bradley Fixtures Corporation Lavatory with dual plenum hand dryer
US9486118B2 (en) 2011-05-17 2016-11-08 Dyson Technology Limited Fixture for a sink
WO2012156739A3 (fr) * 2011-05-17 2013-11-14 Dyson Technology Limited Sèche-mains
US9982422B2 (en) 2011-05-17 2018-05-29 Dyson Technology Limited Fixture for a sink
WO2013114096A1 (fr) 2012-01-30 2013-08-08 Safeway Hygiene Services Limited Dispositif de lavage
US9758953B2 (en) 2012-03-21 2017-09-12 Bradley Fixtures Corporation Basin and hand drying system
US10100501B2 (en) 2012-08-24 2018-10-16 Bradley Fixtures Corporation Multi-purpose hand washing station
WO2016082635A1 (fr) * 2014-11-26 2016-06-02 李锋华 Machine de lavage des mains
CN106351293A (zh) * 2015-08-02 2017-01-25 德化县丽德家居用品有限公司 一种带风干功能的洗手盆
CN107386383A (zh) * 2015-08-02 2017-11-24 刘乐凝 一种带干手功能的洗手器
CN106480938A (zh) * 2015-08-02 2017-03-08 德化县丽德家居用品有限公司 一种带喷气孔的洗手盆
CN105011832A (zh) * 2015-08-02 2015-11-04 刘乐凝 一种洗手器
CN106480938B (zh) * 2015-08-02 2018-11-06 德化县丽德家居用品有限公司 一种带喷气孔的洗手盆
CN106351293B (zh) * 2015-08-02 2019-04-19 德化县丽德家居用品有限公司 一种带风干功能的洗手盆
CN107386383B (zh) * 2015-08-02 2020-05-05 长乐市丽智产品设计有限公司 一种带干手功能的洗手器
US10041236B2 (en) 2016-06-08 2018-08-07 Bradley Corporation Multi-function fixture for a lavatory system
US11015329B2 (en) 2016-06-08 2021-05-25 Bradley Corporation Lavatory drain system
IT202000011023A1 (it) * 2020-05-14 2021-11-14 Marco Ferrari Dispositivo di disinfezione, particolarmente per mani.

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