US3480787A - Automatic installation for washing hands - Google Patents

Automatic installation for washing hands Download PDF

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Publication number
US3480787A
US3480787A US541240A US3480787DA US3480787A US 3480787 A US3480787 A US 3480787A US 541240 A US541240 A US 541240A US 3480787D A US3480787D A US 3480787DA US 3480787 A US3480787 A US 3480787A
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United States
Prior art keywords
receiver
nozzle
transmitter
installation
emitter
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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.)
Expired - Lifetime
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US541240A
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English (en)
Inventor
Knud Harald Storm Johansen
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SERVODAN AS
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SERVODAN AS
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Publication date
Application filed by SERVODAN AS filed Critical SERVODAN AS
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Publication of US3480787A publication Critical patent/US3480787A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector

Definitions

  • FIG. 4 AUTOMATIC INSTALLATION FOR WASHING HANDS Filed April 8, 1966 3 Sheets-Sheet 5 FIG. 3.
  • FIG. 5 FIG. 5.
  • the invention relates to an automatic installation for washing hands of the type where a closing member in a supply conduit to a nozzle is controlled by an apparatus that emits and receives radiation impulses and thereby senses whether an object is present in the path of the radiation.
  • the object of the invention is to devise an automatic installation of the type indicated for washing hands where the above mentioned drawbacks are remedied so that a practical structure and an easy and natural activation.
  • This is obtained according to the invention by placing the transmitter and receiver of the radiation impulses in such a manner that they have an intersection point in a region at the same height as the rinsing region below the nozzle and at a slight distance to one side of the axis of the nozzle.
  • the hand will intercept the radiation from the transmitter and will emit radiation which is received by the receiver.
  • the transmitter and the receiver may be placed higher than the outlet of the nozzle and they may be directed downwards.
  • the transmitter and the receiver and preferably other apparatus components may be integrated to form a unit with the nozzle.
  • the transmitter and the receiver and preferably other apparatus components may be integrated to form a unit with the nozzle.
  • FIG. 1 showing a section through the wall with the first embodiment of an installation for washing hands
  • FIG. 2 a section of FIG. 1 in a larger scale
  • FIG. 3-7 schematic views of five embodiments where FIG. 7 substantially corresponds to FIGS. 1 and 2.
  • a washbasin 2 On a wall 1 there is fastened a washbasin 2 with a drain 3. Above the washbasin there is fixedly arranged a nozzle 4 which, as shown in FIG. 2, consists of a lower canal 5 and an upper canal 6. The lower canal has a downwards directed outlet aperture '7.
  • a tube 8 In the upper canal 6 there is arranged a tube 8 which at its outer end supports a plane mirror 9 arranged at an angle of 45 to the axis of the pipe and placed just above a vertical canal portion 10 in which there is placed a lens 11 with a principal focus 12.
  • a lens 13 with its principal focus in a photoresistor 14 the latter being fixedly arranged on a rear plate 15.
  • a lamp 17 is arranged above said mirror, the light source of said lamp 17 being placed in the principal focus of the system consisting of the lens 13 and the mirror 14.
  • the lamp 17 is fixed on the rear plate 15 and is arranged in a housing that is made integrally with the nozzle 4 and has a detachable cover 19.
  • a water supply conduit 20 is connected to the canal 5, a magnet valve 21 being inserted in said conduit 20, the latter being connected with a thermostatically controlled mixing fitting 22 with supply conduits 23 and 24 for cold and hot water respectively.
  • the wires to the photoresistor 14 and the lamp 17 are connected to a per se known apparatus 25, the latter being connected to an electricity supply cable 26 and furthermore being connected to the magnet valve 21 by means of control wires 27.
  • the lamp 17 is lighted when the installation is in use.
  • the hand When a person moves a hand into the rinsing region below the outlet aperture 7 the hand will be illuminated by the radiation originating from the lamp 17 and continuing to the mirror, through the upper half of the lens 13, to one half of the mirror 9 and through one half of the lens 11, and the hand will therefore emit light which passes through the lens 11, to the mirror 9 and through the lower half of the lens 13 to the photoresistor 14.
  • the resistance in the latter is altered thereby which in the usual manner causes emission of a controlling impulse in the apparatus 25, said impulse travelling through the wires 27 to the magnet valve 21 so that the latter is opened and water flows through the canal 5 and out through the outlet aperture 7.
  • Such apparatuses are usually constructed in such a manner that the magnet valve is kept open for a certain length of time after the impulse to the photoresistor 14 has stopped so that the basin may be rinsed after the person has washed hands.
  • FIG. 3 there is shown an installation where a transmitter 28, consisting of a photoresistor and a lens system are arranged beside each other at a somewhat higher level than a nozzle and at a slight distance to the side of the vertical axis of the nozzle.
  • the principal focus of the transmitter and the receiver coincide in the point 31.
  • the transmitter and the receiver are connected to an apparatus 25 that controls a magnet valve 21.
  • the transmitter and receiver have a common lens system 31 above which a transmitting lamp 32 and an oblique mirror 33 are arranged, a receiver in the shape of a photoresistor 34 being placed alongside said lamp 32 and mirror 33.
  • the transmitter and the receiver are connected to an apparatus 25 which controls a magnet valve 21.
  • the common lens system 31 is arranged with a vertical axis in a position at a distance to the side of a nozzle with vertical axis and said system is arranged in such a manner that its principal focus 35 is placed lower than the outlet aperture of the nozzle 30.
  • FIG. 5 there is shown an installation having a transmitter 36 for emission of sound waves with a high frequency, e.g. 40,000 Hertz, and a receiver 37 for receiving such sound waves.
  • the transmitter and receiver are arranged with slightly oblique directions with their axes intersecting in a point 38.
  • the transmitter and the receiver are connected to an apparatus 39 which controls a magnet valve 21.
  • the point of intersection 38 is positioned lower than the outlet aperture of a nozzle 30 with vertical axis.
  • the installation shown in FIG. 6 has a transmitter 40 for emitting sound waves with a high frequency and a receiver 41 for receiving such sound waves.
  • a canal 42 is connected to the transmitter and a canal 43 is connected to the receiver.
  • Said canals 42 and 43 extend along a horizontal stretch 44 and a vertical stretch 45 of a nozzle and may form a unit with the nozzle in the same manner as the canals 5 and 6 in FIG. 2.
  • the transmitter and the receiver are connected to an apparatus 39 that controls a magnet valve 21 in a supply conduit to the nozzle 44, 45.
  • the two downwards extending stretches of the canals 42 and 43 have slightly oblique directions towards a point of intersection 46.
  • the transmitter emits sound waves which travel through the canal 42.
  • FIG. 7 corresponds substantially to FIGS. 1 and 2 and corresponding reference numerals are used.
  • a nozzle with an oblique direction may thus be employed.
  • the transmitter and the receiver may be arranged with a pronounced oblique direction in which case they may be placed behind the nozzle.
  • the point of intersection should be placed at a slight distance to the side of the axis of the nozzle, but it will be clear that by placing the point of intersection in front of the nozzle the distance of the former from the nozzle may be relatively great without any adverse effects, eg the distance may be 100 mm. or more although it must be presumed that also in this case it would be most practical that the distance be relatively small, e.g. mm. or less.
  • the height of the point of intersection in relation to the outlet aperture may also vary. It must be presumed that it would be advantageous that the point be placed 50 mm. lower than the outlet aperture of the nozzle, for instance also because it thereby becomes possible to employ a relatively small and cheap lens system, but there is nothing to hinder placing the point mm. or more lower than the outlet aperture of the nozzle.
  • a controlling apparatus for automatically opening and closing a faucet comprising an emitter which is adapted to emit a delimited ray group, a receiver which is adapted to receive a limited ray group and to activate means for opening and closing the faucet, and means for positioning said emitter and receiver in such a manner with respect to each other that said ray groups intersect each other in a limited region at a level below the outlet of the faucet and laterally in relation to a vertical axis of the faucet.
  • a controlling apparatus for automatically opening and closing a faucet comprising a receiver which is adapted to emit a limited ray group having an axis and converging in a direction away from the emitter, means for positioning said emitter so that the rays intersect each other in a limited region at a level below the outlet of the faucet and laterally in relation to the faucets axis, a receiver which is adapted to receive a limited ray group having an axis and to activate means for opening and closing the faucet, and means positioning said receiver whereby its axis is coincident with the emitters axis.
  • a controlling apparatus for automatically opening and closing a faucet comprising a receiver which is adapted to receive a limited ray group having an axis and converging in a direction away from the receiver, said receiver also being adapted to activate means for opening and closing the faucet, means positioning said receiver so that the rays of said ray group intersect each other in a limited region at a level lower than the outlet of the faucet and laterally in relation to the axis of the faucet, an emitter which is adapted to emit a limited ray group having an axis, and means positioning said emitter so that its axis is coincident with the receivers axis. 4.
  • a controlling apparatus for automatically opening and closing a faucet comprising an emitter which is adapted to emit a limited ray group having an axis and converging away from the emitter, means positioning said emitter so that the rays of said ray group intersect each other in a region at a level lower than the outlet of the faucet and laterally in relation to the axis of the faucet, a receiver which is adapted to receive a limited ray group with an axis and which converges in a direction away from the receiver, said receiver also being adapted to activate means for opening and closing the faucet, and means positioning said receiver so that the rays thereof intersect each other in a limited region substantially coinciding with the intersection region for the ray group from the emitter with the axis of said receiver coinciding with the axis of said emitter.

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  • Domestic Plumbing Installations (AREA)
US541240A 1965-06-30 1966-04-08 Automatic installation for washing hands Expired - Lifetime US3480787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK334465AA DK108390C (da) 1965-06-30 1965-06-30 Håndvask med strålingsstyring af vandtilførslen.

Publications (1)

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US3480787A true US3480787A (en) 1969-11-25

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US541240A Expired - Lifetime US3480787A (en) 1965-06-30 1966-04-08 Automatic installation for washing hands

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DK (1) DK108390C (el)
SE (1) SE305423B (el)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621268A (en) * 1967-12-19 1971-11-16 Int Standard Electric Corp Reflection type contactless touch switch having housing with light entrance and exit apertures opposite and facing
US3670167A (en) * 1970-05-14 1972-06-13 American Standard Inc Proximity switching equipment
US3799198A (en) * 1972-01-27 1974-03-26 Aiden Kk Electronic automatic faucet device
WO1987000743A1 (en) 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4692951A (en) * 1984-10-31 1987-09-15 Toto Ltd. Sanitary facility room for clean room
US4735357A (en) * 1986-03-07 1988-04-05 Stephen O. Gregory Modular water facuet with automatic water supply system
US4767922A (en) * 1986-08-25 1988-08-30 Honeywell Inc. Hand presence activated water faucet controller
US4823414A (en) * 1986-01-22 1989-04-25 Water-Matic Corporation Automatic faucet-sink control system
US4894874A (en) * 1988-03-28 1990-01-23 Sloan Valve Company Automatic faucet
US4938384A (en) * 1989-01-17 1990-07-03 Sloan Valve Company Liquid dispenser
US4984314A (en) * 1986-01-22 1991-01-15 Water-Matic Corporation Automatic fluid-flow control system
US5025516A (en) * 1988-03-28 1991-06-25 Sloan Valve Company Automatic faucet
WO1995035598A1 (en) * 1994-06-21 1995-12-28 United Technologies Corporation Self-illuminating touch activated optical switch
US5504950A (en) * 1994-07-07 1996-04-09 Adams Rite Sabre International Variable temperature electronic water supply system
US5577660A (en) * 1994-12-09 1996-11-26 Hansen; K. Gene Temperature sensing automatic faucet
US5637863A (en) * 1994-08-24 1997-06-10 Mdt Corporation Surgical light with touchless switch
US7069941B2 (en) 2001-12-04 2006-07-04 Arichell Technologies Inc. Electronic faucets for long-term operation
US20070108400A1 (en) * 2005-11-14 2007-05-17 Johnson Dwight N Modular electrically-operated faucet
US7383721B2 (en) 2002-06-24 2008-06-10 Arichell Technologies Inc. Leak Detector
US7898407B2 (en) 2007-03-30 2011-03-01 Toronto Rehabilitation Institute Hand hygiene compliance system
US8237558B2 (en) 2007-03-30 2012-08-07 University Health Network Hand hygiene compliance system
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
US9170148B2 (en) 2011-04-18 2015-10-27 Bradley Fixtures Corporation Soap dispenser having fluid level sensor
US9267736B2 (en) 2011-04-18 2016-02-23 Bradley Fixtures Corporation Hand dryer with point of ingress dependent air delay and filter sensor
US9695579B2 (en) 2011-03-15 2017-07-04 Sloan Valve Company Automatic faucets
US9758953B2 (en) 2012-03-21 2017-09-12 Bradley Fixtures Corporation Basin and hand drying system
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
US20190345018A1 (en) * 2018-05-07 2019-11-14 Regina M. GARCIA Liquid dispenser with proximity and positioning system
US10508423B2 (en) 2011-03-15 2019-12-17 Sloan Valve Company Automatic faucets
US11015329B2 (en) 2016-06-08 2021-05-25 Bradley Corporation Lavatory drain system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213024A (en) * 1937-01-09 1940-08-27 Norton Co Optical sizing apparatus
US2331023A (en) * 1942-04-09 1943-10-05 Prosperity Co Inc Safety control for power operated machines
US2738448A (en) * 1949-01-21 1956-03-13 Bokser Lewis Electric eye for automatically operating flushing valve
US3151340A (en) * 1961-10-26 1964-10-06 Carousel Sanwa Licensing Corp Automatic water-supply apparatus
US3238373A (en) * 1962-09-26 1966-03-01 Cyril N Volk Photometric gage for finding perpendiculars to surfaces
US3328592A (en) * 1964-09-14 1967-06-27 Ii Howard R Shaw Photoelectric wall switch and relay system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213024A (en) * 1937-01-09 1940-08-27 Norton Co Optical sizing apparatus
US2331023A (en) * 1942-04-09 1943-10-05 Prosperity Co Inc Safety control for power operated machines
US2738448A (en) * 1949-01-21 1956-03-13 Bokser Lewis Electric eye for automatically operating flushing valve
US3151340A (en) * 1961-10-26 1964-10-06 Carousel Sanwa Licensing Corp Automatic water-supply apparatus
US3238373A (en) * 1962-09-26 1966-03-01 Cyril N Volk Photometric gage for finding perpendiculars to surfaces
US3328592A (en) * 1964-09-14 1967-06-27 Ii Howard R Shaw Photoelectric wall switch and relay system

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621268A (en) * 1967-12-19 1971-11-16 Int Standard Electric Corp Reflection type contactless touch switch having housing with light entrance and exit apertures opposite and facing
US3670167A (en) * 1970-05-14 1972-06-13 American Standard Inc Proximity switching equipment
US3799198A (en) * 1972-01-27 1974-03-26 Aiden Kk Electronic automatic faucet device
US4692951A (en) * 1984-10-31 1987-09-15 Toto Ltd. Sanitary facility room for clean room
WO1987000743A1 (en) 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4722372A (en) * 1985-08-02 1988-02-02 Louis Hoffman Associates Inc. Electrically operated dispensing apparatus and disposable container useable therewith
US4823414A (en) * 1986-01-22 1989-04-25 Water-Matic Corporation Automatic faucet-sink control system
US4984314A (en) * 1986-01-22 1991-01-15 Water-Matic Corporation Automatic fluid-flow control system
US4735357A (en) * 1986-03-07 1988-04-05 Stephen O. Gregory Modular water facuet with automatic water supply system
US4767922A (en) * 1986-08-25 1988-08-30 Honeywell Inc. Hand presence activated water faucet controller
US5025516A (en) * 1988-03-28 1991-06-25 Sloan Valve Company Automatic faucet
US4894874A (en) * 1988-03-28 1990-01-23 Sloan Valve Company Automatic faucet
US4938384A (en) * 1989-01-17 1990-07-03 Sloan Valve Company Liquid dispenser
WO1995035598A1 (en) * 1994-06-21 1995-12-28 United Technologies Corporation Self-illuminating touch activated optical switch
US5504950A (en) * 1994-07-07 1996-04-09 Adams Rite Sabre International Variable temperature electronic water supply system
US5637863A (en) * 1994-08-24 1997-06-10 Mdt Corporation Surgical light with touchless switch
US5577660A (en) * 1994-12-09 1996-11-26 Hansen; K. Gene Temperature sensing automatic faucet
US7069941B2 (en) 2001-12-04 2006-07-04 Arichell Technologies Inc. Electronic faucets for long-term operation
US8496025B2 (en) 2001-12-04 2013-07-30 Sloan Valve Company Electronic faucets for long-term operation
US7690623B2 (en) 2001-12-04 2010-04-06 Arichell Technologies Inc. Electronic faucets for long-term operation
US9763393B2 (en) 2002-06-24 2017-09-19 Sloan Valve Company Automated water delivery systems with feedback control
US7383721B2 (en) 2002-06-24 2008-06-10 Arichell Technologies Inc. Leak Detector
US7650653B2 (en) 2005-11-14 2010-01-26 Geberit Technik Ag Modular electrically-operated faucet
US20070108400A1 (en) * 2005-11-14 2007-05-17 Johnson Dwight N Modular electrically-operated faucet
US7898407B2 (en) 2007-03-30 2011-03-01 Toronto Rehabilitation Institute Hand hygiene compliance system
US8237558B2 (en) 2007-03-30 2012-08-07 University Health Network Hand hygiene compliance system
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
US10508423B2 (en) 2011-03-15 2019-12-17 Sloan Valve Company Automatic faucets
US9695579B2 (en) 2011-03-15 2017-07-04 Sloan Valve Company Automatic faucets
US9170148B2 (en) 2011-04-18 2015-10-27 Bradley Fixtures Corporation Soap dispenser having fluid level sensor
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
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
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
US20190345018A1 (en) * 2018-05-07 2019-11-14 Regina M. GARCIA Liquid dispenser with proximity and positioning system
US10988366B2 (en) * 2018-05-07 2021-04-27 Regina M. GARCIA Liquid dispenser with proximity and positioning system
US11453583B2 (en) 2018-05-07 2022-09-27 Regina M. GARCIA Liquid dispenser with proximity and positioning system

Also Published As

Publication number Publication date
DK108390C (da) 1967-11-27
DE1609211A1 (de) 1971-09-02
SE305423B (el) 1968-10-21

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