WO2006058374A1 - Hand washing and drying apparatus - Google Patents

Hand washing and drying apparatus Download PDF

Info

Publication number
WO2006058374A1
WO2006058374A1 PCT/AU2005/001809 AU2005001809W WO2006058374A1 WO 2006058374 A1 WO2006058374 A1 WO 2006058374A1 AU 2005001809 W AU2005001809 W AU 2005001809W WO 2006058374 A1 WO2006058374 A1 WO 2006058374A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
drying apparatus
hand washing
front opening
air
Prior art date
Application number
PCT/AU2005/001809
Other languages
French (fr)
Inventor
Kenneth Tasman Choate
Nigel Wright
Original Assignee
Kenneth Tasman Choate
Nigel Wright
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
Priority claimed from AU2004906882A external-priority patent/AU2004906882A0/en
Application filed by Kenneth Tasman Choate, Nigel Wright filed Critical Kenneth Tasman Choate
Priority to AU2005312337A priority Critical patent/AU2005312337B2/en
Publication of WO2006058374A1 publication Critical patent/WO2006058374A1/en

Links

Classifications

    • 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
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/48—Drying by means of hot air
    • 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
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • 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 hand washing and drying apparatus.
  • Hand washing and drying facilities generally comprise a wash basin, a soap dispenser, and a blow dryer separated at a distance from each other.
  • the separation of washing, cleansing and drying operations often results in washing liquid and particulate matter being splashed, sprayed and blown into the surrounding environment.
  • Such apparatus generally comprise a cabinet in which a blow dryer and a soap dispenser are mounted above an open wash basin. This open configuration also frequently produces splashing of washing liquid and dispersal of particles.
  • a hand washing and drying apparatus including a horizontal chamber having a front opening and a back wall, a sump with a drain arranged in a lower portion of the chamber, an upper spray nozzle arranged in an upper portion of the chamber to direct liquid generally vertically downward, two side spray nozzles arranged in opposed side portions of the chamber to respectively direct liquid generally laterally inward, an air conduit arranged in an upper portion of the chamber between the upper spray nozzle and the back wall to direct air downward, and an inwardly turned Hp forming a continuation of a front portion of the chamber and projecting inward beyond the front opening to prevent liquid and air from escaping out of the chamber and away from the front opening.
  • Figure 1 is a schematic front view of a hand washing and drying apparatus of an embodiment of the present invention with internal components depicted in phantom;
  • Figure 2 is a schematic cutaway side view of a chamber of the apparatus of Figure
  • Figure 3 is a schematic front view of the apparatus in use in a washing cycle
  • Figure 4 is a schematic cutaway top view of the chamber in use in a washing cycle
  • Figure 5 is a schematic cutaway side view of the chamber in use in a drying cycle
  • Figure 6 is a schematic cutaway top view of the chamber in use in a drying cycle.
  • a hand washing and drying apparatus 10 includes a chamber 12 horizontally oriented in a housing 14.
  • the chamber 12 includes a front opening 16 and a back wall 18.
  • a sump 20 with a drain 22 is arranged in a lower portion of the chamber 12.
  • An upper spray nozzle 24 is arranged in an upper portion of the chamber 12 to direct liquid generally vertically downward.
  • Two side spray nozzles 26, 28 are arranged in opposed side portions of the chamber 12 to respectively direct liquid generally laterally inward.
  • An air conduit 30 is arranged in an upper portion of the chamber 12 between the upper spray nozzle 24 and the back wall 18 to direct air downward.
  • a light (not shown) is arranged in an upper portion of the chamber 12 to illuminate the chamber 12.
  • An inwardly turned lip 32 forms a continuation of a front portion of the chamber 12 and projects inward beyond the front opening 16.
  • the housing 14 of the hand washing and drying apparatus 10 further includes a water supply 34, a liquid soap supply 36, an air dryer 38, an optical sensor 40 and a controller 42.
  • the controller 42 is operatively connected to the other components by electrical circuitry (not shown).
  • the water supply 34 and the liquid soap supply 36 are connected to the upper and side spray nozzles 24, 26, 28 by plumbing including piping 44 and valves (not shown). Pumps (not shown) can be provided to regulate the pressure of the water and/or liquid soap, and a water heater (not shown) can be provided to regulate the temperature of the water.
  • the air dryer 38 is connected to the air conduit 30.
  • a non-return flap (not shown) or baffles (not shown) can be provided in the air conduit 30 to prevent water and/or liquid soap from contacting the air dryer 38.
  • the optical sensor 40 is arranged in an upper portion of the chamber 12 between the front opening 16 and the upper spray nozzle 24 to detect hands 46 of a user.
  • the controller 42 is actuated by the optical sensor 40 to control the water supply 34, the liquid soap supply 36 and the air dryer 38 according to preprogrammed washing, drying and self-cleaning cycles.
  • a washing cycle sprays of water and/or liquid soap are directed over the backs and palms of the user's hands 46 by the upper and side spray nozzles 24, 26, 28 as depicted in Figure 3.
  • the sump 20 and the drain 22 prevent water and/or liquid soap from pooling in the lower portion of the chamber 12.
  • air from the air conduit 30 circulates within the chamber 12 over and around the backs and palms of the user's hands 46 as indicated by the arrows in Figures 5 and 6.
  • the inwardly turned lip 32 prevents water, liquid soap and air from escaping out of the chamber 12 and away from the front opening 16.
  • the chamber 12 can be manufactured by, for example, injection moulding.
  • the chamber 12 can be manufactured by, for example, injection moulding.
  • the chamber 12 can be manufactured from, for example, thermoplastic polyurethane. Other suitable manufacturing methods and materials will be apparent to those skilled in the art.
  • the chamber 12 has a generally circular vertical cross-section.
  • the chamber 12 may alternatively be made with generally rectangular, square or triangular vertical cross-sections.
  • the housing 14 of the illustrated embodiment has a generally rectangular horizontal cross-section for mounting substantially flush with a wall.
  • the housing can have a generally triangular horizontal cross-section for mounting substantially flush in a corner between two walls.
  • the upper and side spray nozzles 24, 26, 28 are microspray nozzles having a 90° or quarter-circle fan spray pattern. Other suitable spray nozzles will be apparent to those skilled in the art.
  • Embodiments of the present invention provide simple, compact, effective and hygienic hand washing and drying apparatus.
  • the structural arrangement of the chamber allows hands to be thoroughly washed and dried. Contamination is minimised or eliminated by the inwardly turned lip of the chamber which prevents splashback of liquid and backflow of air from the apparatus.
  • the apparatus is operable without the user's hands contacting the apparatus.
  • the apparatus is preprogrammed to self-clean the chamber between uses.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

A hand washing and drying apparatus (12) including a horizontal chamber (12) having a front opening (16) and a back wall (18), a sump (20) with a drain (22) arranged in a lower portion of the chamber, an upper spray nozzle (24) arranged in an upper portion of the chamber to direct liquid generally vertically downward, two side spray nozzles (26, 28) arranged in opposed side portions of the chamber to respectively direct liquid generally laterally inward, an air conduit (30) arranged in an upper portion of the chamber between the upper spray nozzle (24) and the back wall (18) to direct air downward, and an inwardly turned lip (32) forming a continuation of a front portion of the chamber (12) and projecting inward beyond the front opening (16) to prevent liquid and air from escaping out of the chamber and away from the front opening.

Description

HAND WASHING AND DRYING APPARATUS
FIELD OF THE INVENTION
The present invention relates to hand washing and drying apparatus.
BACKGROUND OF THE INVENTION
Hand washing and drying facilities generally comprise a wash basin, a soap dispenser, and a blow dryer separated at a distance from each other. The separation of washing, cleansing and drying operations often results in washing liquid and particulate matter being splashed, sprayed and blown into the surrounding environment.
Combined hand washing and drying apparatus have been proposed. Such apparatus generally comprise a cabinet in which a blow dryer and a soap dispenser are mounted above an open wash basin. This open configuration also frequently produces splashing of washing liquid and dispersal of particles.
The dissemination of washing liquid and particles during hand washing and drying is highly undesirable because it creates an unclean and unsafe environment.
A need therefore exists for a washing and drying apparatus in which splashing of washing liquid and blowing of particles outside the apparatus is minimised or eliminated.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a hand washing and drying apparatus including a horizontal chamber having a front opening and a back wall, a sump with a drain arranged in a lower portion of the chamber, an upper spray nozzle arranged in an upper portion of the chamber to direct liquid generally vertically downward, two side spray nozzles arranged in opposed side portions of the chamber to respectively direct liquid generally laterally inward, an air conduit arranged in an upper portion of the chamber between the upper spray nozzle and the back wall to direct air downward, and an inwardly turned Hp forming a continuation of a front portion of the chamber and projecting inward beyond the front opening to prevent liquid and air from escaping out of the chamber and away from the front opening.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the present invention is hereinafter described, by way of non-limiting example only, with reference to the accompanying drawings, in which:
Figure 1 is a schematic front view of a hand washing and drying apparatus of an embodiment of the present invention with internal components depicted in phantom;
Figure 2 is a schematic cutaway side view of a chamber of the apparatus of Figure
1; Figure 3 is a schematic front view of the apparatus in use in a washing cycle;
Figure 4 is a schematic cutaway top view of the chamber in use in a washing cycle; Figure 5 is a schematic cutaway side view of the chamber in use in a drying cycle; and
Figure 6 is a schematic cutaway top view of the chamber in use in a drying cycle.
DETAILED DESCRIPTION OF THE EMBODIMENT
A hand washing and drying apparatus 10 includes a chamber 12 horizontally oriented in a housing 14. The chamber 12 includes a front opening 16 and a back wall 18. A sump 20 with a drain 22 is arranged in a lower portion of the chamber 12. An upper spray nozzle 24 is arranged in an upper portion of the chamber 12 to direct liquid generally vertically downward. Two side spray nozzles 26, 28 are arranged in opposed side portions of the chamber 12 to respectively direct liquid generally laterally inward. An air conduit 30 is arranged in an upper portion of the chamber 12 between the upper spray nozzle 24 and the back wall 18 to direct air downward. A light (not shown) is arranged in an upper portion of the chamber 12 to illuminate the chamber 12. An inwardly turned lip 32 forms a continuation of a front portion of the chamber 12 and projects inward beyond the front opening 16.
The housing 14 of the hand washing and drying apparatus 10 further includes a water supply 34, a liquid soap supply 36, an air dryer 38, an optical sensor 40 and a controller 42. The controller 42 is operatively connected to the other components by electrical circuitry (not shown). The water supply 34 and the liquid soap supply 36 are connected to the upper and side spray nozzles 24, 26, 28 by plumbing including piping 44 and valves (not shown). Pumps (not shown) can be provided to regulate the pressure of the water and/or liquid soap, and a water heater (not shown) can be provided to regulate the temperature of the water. The air dryer 38 is connected to the air conduit 30. A non-return flap (not shown) or baffles (not shown) can be provided in the air conduit 30 to prevent water and/or liquid soap from contacting the air dryer 38. The optical sensor 40 is arranged in an upper portion of the chamber 12 between the front opening 16 and the upper spray nozzle 24 to detect hands 46 of a user.
In use, the controller 42 is actuated by the optical sensor 40 to control the water supply 34, the liquid soap supply 36 and the air dryer 38 according to preprogrammed washing, drying and self-cleaning cycles. In a washing cycle, sprays of water and/or liquid soap are directed over the backs and palms of the user's hands 46 by the upper and side spray nozzles 24, 26, 28 as depicted in Figure 3. The sump 20 and the drain 22 prevent water and/or liquid soap from pooling in the lower portion of the chamber 12. In a drying cycle, air from the air conduit 30 circulates within the chamber 12 over and around the backs and palms of the user's hands 46 as indicated by the arrows in Figures 5 and 6. During the washing and drying cycles, the inwardly turned lip 32 prevents water, liquid soap and air from escaping out of the chamber 12 and away from the front opening 16.
The chamber 12 can be manufactured by, for example, injection moulding. The chamber
12 can be manufactured from, for example, thermoplastic polyurethane. Other suitable manufacturing methods and materials will be apparent to those skilled in the art. In the illustrated embodiment, the chamber 12 has a generally circular vertical cross-section. The chamber 12 may alternatively be made with generally rectangular, square or triangular vertical cross-sections. The housing 14 of the illustrated embodiment has a generally rectangular horizontal cross-section for mounting substantially flush with a wall. Alternatively, the housing can have a generally triangular horizontal cross-section for mounting substantially flush in a corner between two walls.
The upper and side spray nozzles 24, 26, 28 are microspray nozzles having a 90° or quarter-circle fan spray pattern. Other suitable spray nozzles will be apparent to those skilled in the art.
Embodiments of the present invention provide simple, compact, effective and hygienic hand washing and drying apparatus. The structural arrangement of the chamber allows hands to be thoroughly washed and dried. Contamination is minimised or eliminated by the inwardly turned lip of the chamber which prevents splashback of liquid and backflow of air from the apparatus. The apparatus is operable without the user's hands contacting the apparatus. In addition, the apparatus is preprogrammed to self-clean the chamber between uses.
The present invention is not limited to the embodiments that have been described and depicted, but variations and modifications may be made without departing from the scope of the present invention.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. A hand washing and drying apparatus including a horizontal chamber having a front opening and a back wall, a sump with a drain arranged in a lower portion of the chamber, an upper spray nozzle arranged in an upper portion of the chamber to direct liquid generally vertically downward, two side spray nozzles arranged in opposed side portions of the chamber to respectively direct liquid generally laterally inward, an air conduit arranged in an upper portion of the chamber between the upper spray nozzle and the back wall to direct air downward, and an inwardly turned lip forming a continuation of a front portion of the chamber and projecting inward beyond the front opening to prevent liquid and air from escaping out of the chamber and away from the front opening.
2. A hand washing and drying apparatus according to claim 1, further including a water supply and a liquid soap supply connected to the upper and side spray nozzles, an air dryer connected to the air conduit, a sensor arranged in an upper portion of the chamber between the front opening and the upper spray nozzle to detect hands of a user, a controller actuated by the sensor to control the water supply, the liquid soap supply and the air dryer according to preprogrammed washing, drying and self-cleaning cycles.
3. A hand washing and drying apparatus according to claim 1 or 2, wherein the horizontal chamber has a generally circular, rectangular, square or triangular vertical cross- section.
4. A hand washing and drying apparatus according to any preceding claim, wherein the upper and side spray nozzles are microspray nozzles.
5. A hand washing and drying apparatus according to claim 4, wherein in use each microspray nozzle has a 90° or quarter-circle fan spray pattern.
6. A hand washing and drying apparatus substantially as hereinbefore described with reference to the accompanying drawings.
PCT/AU2005/001809 2004-12-01 2005-12-01 Hand washing and drying apparatus WO2006058374A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2005312337A AU2005312337B2 (en) 2004-12-01 2005-12-01 Hand washing and drying apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004906882A AU2004906882A0 (en) 2004-12-01 Hand washing and drying apparatus
AU2004906882 2004-12-01

Publications (1)

Publication Number Publication Date
WO2006058374A1 true WO2006058374A1 (en) 2006-06-08

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ID=36564676

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/001809 WO2006058374A1 (en) 2004-12-01 2005-12-01 Hand washing and drying apparatus

Country Status (1)

Country Link
WO (1) WO2006058374A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471084A (en) * 2009-06-16 2010-12-22 Devitto Ltd Hand washing and drying apparatus
WO2010146396A1 (en) * 2009-06-19 2010-12-23 Bassrock Limited Washing apparatus
WO2011009156A1 (en) * 2009-07-23 2011-01-27 Wright, Kerrie Dorothy Apparatus for washing and drying hands
FR2955030A1 (en) * 2010-01-14 2011-07-15 Bernard Feldain APPARATUS FOR DISINFECTING THE HANDS OF A USER.
WO2012056189A1 (en) * 2010-10-28 2012-05-03 Sonicclean Limited Hand washing apparatus
WO2012076521A1 (en) 2010-12-07 2012-06-14 Brian Graydon An apparatus for drying and sanitizing hands
WO2015126969A1 (en) * 2014-02-18 2015-08-27 Stethoswipe Llc Methods and systems for sterilization of medical instruments
US9139302B2 (en) 2011-02-10 2015-09-22 Airbus Operations Gmbh Hand drying device and washing stand for an aircraft
DE102017130158A1 (en) * 2017-12-15 2019-06-19 Oliver Hammerer Automated hand-cleaning device
JP2020048628A (en) * 2018-09-25 2020-04-02 有限会社クラウン商会 Automatic finger washing device
IT201900009594A1 (en) * 2019-06-20 2020-12-20 Fulvio Falini System for washing and drying hands.
US10941547B2 (en) 2019-02-22 2021-03-09 Zurn Industries, Llc IoT connected handwashing monitoring and compliance for various applications
WO2022006148A1 (en) * 2020-06-30 2022-01-06 Kohler Co. Handwashing assembly
US11578815B2 (en) 2018-02-01 2023-02-14 Kohler Mira Limited Handwashing system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360521A1 (en) * 1973-12-05 1975-06-26 Gerard Burgin SINK
US4295233A (en) * 1977-12-30 1981-10-20 Whirlpool Corporation Automatic hand washer and drier
US4336619A (en) * 1977-12-30 1982-06-29 Whirlpool Corporation Hand washer and drier mounting structure
US4398310A (en) * 1979-03-26 1983-08-16 Maschinenfabrik Ad. Schulthess & Co. A.G. Washstand device
US5727579A (en) * 1996-05-29 1998-03-17 144 Limited Partnership Automatic hand washing and drying apparatus including combined blow drying means and towel dispensing means
WO1998053752A2 (en) * 1997-05-30 1998-12-03 700303 Alberta Ltd. Apparatus for and method of cleaning hands
US5992430A (en) * 1998-09-28 1999-11-30 144 Limited Partnership Automatic hand washing and drying apparatus including combined blow drying means, towel dispensing means and waste disposal means

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360521A1 (en) * 1973-12-05 1975-06-26 Gerard Burgin SINK
US4295233A (en) * 1977-12-30 1981-10-20 Whirlpool Corporation Automatic hand washer and drier
US4336619A (en) * 1977-12-30 1982-06-29 Whirlpool Corporation Hand washer and drier mounting structure
US4398310A (en) * 1979-03-26 1983-08-16 Maschinenfabrik Ad. Schulthess & Co. A.G. Washstand device
US5727579A (en) * 1996-05-29 1998-03-17 144 Limited Partnership Automatic hand washing and drying apparatus including combined blow drying means and towel dispensing means
WO1998053752A2 (en) * 1997-05-30 1998-12-03 700303 Alberta Ltd. Apparatus for and method of cleaning hands
US5992430A (en) * 1998-09-28 1999-11-30 144 Limited Partnership Automatic hand washing and drying apparatus including combined blow drying means, towel dispensing means and waste disposal means

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471084A (en) * 2009-06-16 2010-12-22 Devitto Ltd Hand washing and drying apparatus
WO2010146396A1 (en) * 2009-06-19 2010-12-23 Bassrock Limited Washing apparatus
WO2011009156A1 (en) * 2009-07-23 2011-01-27 Wright, Kerrie Dorothy Apparatus for washing and drying hands
CN102469896A (en) * 2009-07-23 2012-05-23 奈杰尔·大卫·赖特 Apparatus for washing and drying hands
JP2012533368A (en) * 2009-07-23 2012-12-27 ケリー、ドロシー、ライト Hand washing dryer
AU2010276071B2 (en) * 2009-07-23 2015-08-20 Mediklean Pte Ltd Apparatus for washing and drying hands
FR2955030A1 (en) * 2010-01-14 2011-07-15 Bernard Feldain APPARATUS FOR DISINFECTING THE HANDS OF A USER.
WO2011086323A1 (en) 2010-01-14 2011-07-21 Bernard Feldain Appliance for disinfecting the hands of a user
WO2012056189A1 (en) * 2010-10-28 2012-05-03 Sonicclean Limited Hand washing apparatus
AU2011340598B2 (en) * 2010-12-07 2017-03-16 Brian Graydon An apparatus for drying and sanitizing hands
WO2012076521A1 (en) 2010-12-07 2012-06-14 Brian Graydon An apparatus for drying and sanitizing hands
US9139302B2 (en) 2011-02-10 2015-09-22 Airbus Operations Gmbh Hand drying device and washing stand for an aircraft
WO2015126969A1 (en) * 2014-02-18 2015-08-27 Stethoswipe Llc Methods and systems for sterilization of medical instruments
DE102017130158A1 (en) * 2017-12-15 2019-06-19 Oliver Hammerer Automated hand-cleaning device
US11578815B2 (en) 2018-02-01 2023-02-14 Kohler Mira Limited Handwashing system
JP2020048628A (en) * 2018-09-25 2020-04-02 有限会社クラウン商会 Automatic finger washing device
US10941547B2 (en) 2019-02-22 2021-03-09 Zurn Industries, Llc IoT connected handwashing monitoring and compliance for various applications
US11965321B2 (en) 2019-02-22 2024-04-23 Zurn Water, Llc Non-contact system and method for detecting fluid flow
IT201900009594A1 (en) * 2019-06-20 2020-12-20 Fulvio Falini System for washing and drying hands.
WO2022006148A1 (en) * 2020-06-30 2022-01-06 Kohler Co. Handwashing assembly

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