CA2068693A1 - Battery-operated urinal/closet flush valve - Google Patents
Battery-operated urinal/closet flush valveInfo
- Publication number
- CA2068693A1 CA2068693A1 CA 2068693 CA2068693A CA2068693A1 CA 2068693 A1 CA2068693 A1 CA 2068693A1 CA 2068693 CA2068693 CA 2068693 CA 2068693 A CA2068693 A CA 2068693A CA 2068693 A1 CA2068693 A1 CA 2068693A1
- Authority
- CA
- Canada
- Prior art keywords
- control circuit
- terized
- toilet room
- sensor
- battery
- 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.)
- Abandoned
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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
-
- 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
-
- 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
- H03K17/945—Proximity switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94042—Means for reducing energy consumption
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Domestic Plumbing Installations (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A battery-operated sensing and control circuit for a toilet room device such as a flush valve which is operated by an electric solenoid includes a continuously operable primary sensor and an intermittently operated secondary sensor. The primary sensor detects the presence of a user adjacent the toilet room device and starts a timing cycle. The secondary sensor is only powered up during the timing cycle and as soon as the secondary sensor has detected a user in front of the toilet room device, the timing cycle is terminated. All components, including the sensors, the timing device and the electric operator, are powered by a battery.
A battery-operated sensing and control circuit for a toilet room device such as a flush valve which is operated by an electric solenoid includes a continuously operable primary sensor and an intermittently operated secondary sensor. The primary sensor detects the presence of a user adjacent the toilet room device and starts a timing cycle. The secondary sensor is only powered up during the timing cycle and as soon as the secondary sensor has detected a user in front of the toilet room device, the timing cycle is terminated. All components, including the sensors, the timing device and the electric operator, are powered by a battery.
Description
2068~3 BATTERY-POWERED URINAL/CLO~ET FLUSH VALVE
~HE FIELD OF ~HE INVENTION
The present invention relates to sensor-operated toilet room devices such as flush valves, faucets, hand dryers, soap dispensers and the like, and particularly to a battery-operated sensing and control circuit for such devices. In order to provide a battery-operated sensor circuit of the type described, it is necessary to limit current drain on the battery. ~he present invention resolves this problem by utilizing a low current primary sensor which only acti~ates a secondary sensor when a user is detected in front of the toilet room device. The secondary sensor is utillzed to operate the electric operator for the toilet room device and may have somewhat higher current requirements than the primary sensor, as the secondary sensor is only utilized at such time as thexe i5 an indication that a user lS is present.
THE RELATED PRIOR ART
U. S. Patent No. 4,309,781, owned by the assignee of the present application, describes an automatic flushing system for a toilet flush valve. Devices of this nature have been sold by the assignee of the present application, Sloan Valve Company, under the trademark "OPTINA" and can be found in many public washrooms throughout the United States. The flushing system of the '781 patent is operated by local power. The present invention provides a battery-operated circuit for a toilet room 2~8~93 device such as a flush valve or faucet and utilizes primary and secondary sensors so as to limit current drain on the battery~
SUMMARY OF THE INV~NTION
The present invention relates to a battery-operated sensing and control circuit for a toilet room device and has for its primary purpose a circuit of the type described which limits current drain on the battery.
Another purpose of the invention is to provide à
battery operated sensing and control circuit for a toilet room device such as a flush valve, faucet, hand dryer, or soap dispenser.
Another purpose is a control circuit as described utilizing a continuously operable primary sensor having low power requirements which provides the start signal for a secondary sensor which is utilized to initiate operation of the toilet room device electric operator.
Another purpose is a control cirruit of the type described including means for recharying the battery.
Another purpose is a control circuit for the use described having primary and secondar~ sensors and utilizing a timing device whereby the primary sensor controls operation of the secondary sensor.
- Other purposes wlll appear in the ensuing specification, drawing and claims.
The invention is illustrated diagrammatically in the ~86~3 attached block diagram illustrating a preferred form of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
U. S. Patent No. 4,309,781, owned by the assignee of S the present application, Sloan Valve Company, of Franklin Park, Illinois, discloses an automatic flush system sold commercially under the trademark "OPTIMA." This system may be utilized with flush valve for urinals or water closets and is normally powered by local commercial power. The flush valv~ is solenoid operated and uses an infrared detection system. When a user i~ initially detected in front of the toilet device, the sensor initiates a timing cycle which is utilized to avoid false operations. At the end of the timing cycle, the output stage is armed so that when the user moves away from the toilet device, the flush valve solenoid coil will be energized. The present invention is specifically directed to providing battery power for such a sensing system.
In the drawing, an infrared sensor is indicated at 10 and is connected to a solenoid driver 12. The driver 12 is connected to a diagrammatically illustrated solenoid 14. The solenoid driver 12 may include the ~arious electrical components illustrated in the '781 patent, specifically, the oscillator, amplifier, delay, one~shot multivibrator, and output circuit.
The infrared sensor 10 is considered as the secondary sensor. The prlmary sensor, which is indicated at 16, detects motion and/or heat and, for example, may be a pyroelectric sensor 20~69~
which can operate continuously on a current of 20 microamps or lower. This is to be contrasted with the infxared sen~or which requires between 200 and 250 microamps for operation. The solenoid requires approximately 300 milliamps for operation. The motion sensor 16 is connected to a one-shot multivibrator 18 which functions as a timing circuit. When the circuit 18 is operable, based on motion or heat detected by sensox 16, it will operate a one milliamp switch 20 which in turn connects power rom replaceable or rechargeable batteries indicated at 22 to the infrared sensor 10. The infrared sensor 10 will then function in the manner described in the '~81 patent to operate solenoid 14.
There is a connection, indicated at 24, between the ~olenoid driver 12 and the one-shot (shown as 20 seconds, but can be less3 timing circuit 18 to provide a signal which terminates the timing cycle as soon as the infrared sensor 10 has signaled the solenoid to "energize" because the user has left the "field of view" of the toilet room device. This in turn will remove power from the infrared sensor, again reducing the current drain on the battery.
A low battery indicator is indicated at 26 and may be connected to a comparator 28 which receives a reference voltage from a voltage divider circuit 30. The comparator 28 will compare the reference voltage, which may be a submultiple of battery voltage, with the actual voltage from the battery, and thereby provide an indicator of when the batteries need to be replaced or recharged.
2~86~3 Various means may be utilized to recharge the batteries. One su~h device is a solar c~ll array indi~ated at 32 and another device suitable for such purpose is a turbine 34 which will be driven by the water flowing to the flush valve during the period tha~ the flush valve is operable. Such de~ices are known in the art. Diodes 36 and 38 may be used to connect the recharging devices 32 and 34 to the batteries 36. In some applications only one of such recharging devices may be u~ilized, whereas, in others both may be used.
The circuit is completed by an override switch 40 which will override the infrared sensor and automatically connect battery power to the solenoid, for example in flushing a fouled toilet room device, during a periodic cleaning of a toilet room.
The override circuit will provide a signal to the sensor for a lS one-time operation of the flush valve and, regarclless of whether or not the override device is mainta7ned in an operable condition, there will only be one flushing operation and once that flushing operation has taken place, power to the sensor will be terminated.
What is important in the inventi~n is to provide both primary and secondary sensors, with the primary sensor being continuously operated, and having substantially lower current requirements than the secondary sensor. The secondary sensor only operates when stimulated by the primary sens~r and then will only be maintained in an operable condition until such time as a user is detected, even though the timing cycle may not be 2~68~9~
complete. The in~ention is de~cribed as utilizing an infrared sensor as the secondary sensor, and a pyroelectric sensor as the primary sensor. The invention should not be so limited. A
pyroelectric sensor which senses both mo$ion and hea is S particularly desirable for the primary sensor and one such device is manufactured by American Airis Corporation of New Haven, Conn.
Nhereas the preferred form of the invention has been shown and described herein, it should be realized that there may be many modifications, substitutions and altera$ions thereto.
~HE FIELD OF ~HE INVENTION
The present invention relates to sensor-operated toilet room devices such as flush valves, faucets, hand dryers, soap dispensers and the like, and particularly to a battery-operated sensing and control circuit for such devices. In order to provide a battery-operated sensor circuit of the type described, it is necessary to limit current drain on the battery. ~he present invention resolves this problem by utilizing a low current primary sensor which only acti~ates a secondary sensor when a user is detected in front of the toilet room device. The secondary sensor is utillzed to operate the electric operator for the toilet room device and may have somewhat higher current requirements than the primary sensor, as the secondary sensor is only utilized at such time as thexe i5 an indication that a user lS is present.
THE RELATED PRIOR ART
U. S. Patent No. 4,309,781, owned by the assignee of the present application, describes an automatic flushing system for a toilet flush valve. Devices of this nature have been sold by the assignee of the present application, Sloan Valve Company, under the trademark "OPTINA" and can be found in many public washrooms throughout the United States. The flushing system of the '781 patent is operated by local power. The present invention provides a battery-operated circuit for a toilet room 2~8~93 device such as a flush valve or faucet and utilizes primary and secondary sensors so as to limit current drain on the battery~
SUMMARY OF THE INV~NTION
The present invention relates to a battery-operated sensing and control circuit for a toilet room device and has for its primary purpose a circuit of the type described which limits current drain on the battery.
Another purpose of the invention is to provide à
battery operated sensing and control circuit for a toilet room device such as a flush valve, faucet, hand dryer, or soap dispenser.
Another purpose is a control circuit as described utilizing a continuously operable primary sensor having low power requirements which provides the start signal for a secondary sensor which is utilized to initiate operation of the toilet room device electric operator.
Another purpose is a control cirruit of the type described including means for recharying the battery.
Another purpose is a control circuit for the use described having primary and secondar~ sensors and utilizing a timing device whereby the primary sensor controls operation of the secondary sensor.
- Other purposes wlll appear in the ensuing specification, drawing and claims.
The invention is illustrated diagrammatically in the ~86~3 attached block diagram illustrating a preferred form of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
U. S. Patent No. 4,309,781, owned by the assignee of S the present application, Sloan Valve Company, of Franklin Park, Illinois, discloses an automatic flush system sold commercially under the trademark "OPTIMA." This system may be utilized with flush valve for urinals or water closets and is normally powered by local commercial power. The flush valv~ is solenoid operated and uses an infrared detection system. When a user i~ initially detected in front of the toilet device, the sensor initiates a timing cycle which is utilized to avoid false operations. At the end of the timing cycle, the output stage is armed so that when the user moves away from the toilet device, the flush valve solenoid coil will be energized. The present invention is specifically directed to providing battery power for such a sensing system.
In the drawing, an infrared sensor is indicated at 10 and is connected to a solenoid driver 12. The driver 12 is connected to a diagrammatically illustrated solenoid 14. The solenoid driver 12 may include the ~arious electrical components illustrated in the '781 patent, specifically, the oscillator, amplifier, delay, one~shot multivibrator, and output circuit.
The infrared sensor 10 is considered as the secondary sensor. The prlmary sensor, which is indicated at 16, detects motion and/or heat and, for example, may be a pyroelectric sensor 20~69~
which can operate continuously on a current of 20 microamps or lower. This is to be contrasted with the infxared sen~or which requires between 200 and 250 microamps for operation. The solenoid requires approximately 300 milliamps for operation. The motion sensor 16 is connected to a one-shot multivibrator 18 which functions as a timing circuit. When the circuit 18 is operable, based on motion or heat detected by sensox 16, it will operate a one milliamp switch 20 which in turn connects power rom replaceable or rechargeable batteries indicated at 22 to the infrared sensor 10. The infrared sensor 10 will then function in the manner described in the '~81 patent to operate solenoid 14.
There is a connection, indicated at 24, between the ~olenoid driver 12 and the one-shot (shown as 20 seconds, but can be less3 timing circuit 18 to provide a signal which terminates the timing cycle as soon as the infrared sensor 10 has signaled the solenoid to "energize" because the user has left the "field of view" of the toilet room device. This in turn will remove power from the infrared sensor, again reducing the current drain on the battery.
A low battery indicator is indicated at 26 and may be connected to a comparator 28 which receives a reference voltage from a voltage divider circuit 30. The comparator 28 will compare the reference voltage, which may be a submultiple of battery voltage, with the actual voltage from the battery, and thereby provide an indicator of when the batteries need to be replaced or recharged.
2~86~3 Various means may be utilized to recharge the batteries. One su~h device is a solar c~ll array indi~ated at 32 and another device suitable for such purpose is a turbine 34 which will be driven by the water flowing to the flush valve during the period tha~ the flush valve is operable. Such de~ices are known in the art. Diodes 36 and 38 may be used to connect the recharging devices 32 and 34 to the batteries 36. In some applications only one of such recharging devices may be u~ilized, whereas, in others both may be used.
The circuit is completed by an override switch 40 which will override the infrared sensor and automatically connect battery power to the solenoid, for example in flushing a fouled toilet room device, during a periodic cleaning of a toilet room.
The override circuit will provide a signal to the sensor for a lS one-time operation of the flush valve and, regarclless of whether or not the override device is mainta7ned in an operable condition, there will only be one flushing operation and once that flushing operation has taken place, power to the sensor will be terminated.
What is important in the inventi~n is to provide both primary and secondary sensors, with the primary sensor being continuously operated, and having substantially lower current requirements than the secondary sensor. The secondary sensor only operates when stimulated by the primary sens~r and then will only be maintained in an operable condition until such time as a user is detected, even though the timing cycle may not be 2~68~9~
complete. The in~ention is de~cribed as utilizing an infrared sensor as the secondary sensor, and a pyroelectric sensor as the primary sensor. The invention should not be so limited. A
pyroelectric sensor which senses both mo$ion and hea is S particularly desirable for the primary sensor and one such device is manufactured by American Airis Corporation of New Haven, Conn.
Nhereas the preferred form of the invention has been shown and described herein, it should be realized that there may be many modifications, substitutions and altera$ions thereto.
Claims (12)
1. A battery-operated sensing and control circuit for a toilet room device having an electric operator, including a continuously operable primary sensor for detecting the presence of a user adjacent a toilet room device and providing an output signal thereupon, timing means connected to said primary sensor and initiating a timing cycle in response to a signal therefrom, a secondary sensor for detecting the presence of a user adjacent the toilet room device, said secondary sensor being connected to said timing means and the electric operator and only being operable during the period of a timing cycle, said secondary sensor providing an operating signal for the electric operator upon detection of a user adjacent the toilet room device, and a battery connected to and providing the operating power for said primary sensor, timing means, secondary sensor and electric operator.
2. The control circuit of claim 1 further charac-terized in that said primary sensor has a substantially lower power requirement than said secondary sensor.
3. The control circuit of claim 2 further charac-terized in that said primary sensor senses the motion of a user adjacent the toilet room device.
4. The control circuit of claim 3 further charac-terized in that said primary sensor senses both motion and heat.
5. The control circuit of claim 2 further charac-terized in that said secondary sensor utilizes infrared energy.
6. The control circuit of claim 5 further charac-terized in that said primary sensor detects both motion and heat.
7. The control circuit of claim l further charac-terized by and including means for terminating said timing cycle when said secondary sensor detects a user at said toilet room device.
8. The control circuit of claim 7 further charac-terized by and including a driver circuit between said secondary sensor and said electric operator, a connection between said driver circuit and said timing means, said driver circuit providing a signal to terminate said timing cycle when said secondary sensor detects a user at said toilet room device.
9. The control circuit of claim 1 further charac-terized in that said toilet room device is a flush valve, and said electric operator is a solenoid.
10. The control circuit of claim 1 further charac-terized by and including a low battery indicating means connected to said battery.
11. The control circuit of claim 1 further charac-terized by and including means for recharging said battery.
12. The control circuit of claim 11 further charac-terized in that said recharging means includes a solar cell array.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71748291A | 1991-06-19 | 1991-06-19 | |
| US07/717,482 | 1991-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2068693A1 true CA2068693A1 (en) | 1992-12-20 |
Family
ID=24882196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2068693 Abandoned CA2068693A1 (en) | 1991-06-19 | 1992-05-14 | Battery-operated urinal/closet flush valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH05196746A (en) |
| CA (1) | CA2068693A1 (en) |
| DE (1) | DE4218658A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8857786B2 (en) | 2004-01-23 | 2014-10-14 | Bradley Fixtures Corporation | Lavatory system |
| US11096530B2 (en) | 2017-06-15 | 2021-08-24 | Global Innovations, Llc | Toilet closure systems |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL105133A0 (en) * | 1993-03-22 | 1993-07-08 | Madgal Glil Yam | Electronically operated faucet including sensing means |
| FR2706504B1 (en) * | 1993-06-09 | 1995-08-04 | Delabie Sa | Electronic control device for taps, more particularly intended for public toilets. |
| JPH07229187A (en) * | 1994-02-18 | 1995-08-29 | Maruichi Kk | Remote control type drainage cock opening and closing device |
| DE19502148C2 (en) * | 1995-01-25 | 2003-08-28 | Grohe Armaturen Friedrich | Control for a sanitary fitting |
| DE19502214A1 (en) * | 1995-01-25 | 1996-08-01 | Grohe Armaturen Friedrich | Control device for a sanitary fitting |
| AUPQ079299A0 (en) * | 1999-06-04 | 1999-06-24 | Caroma Industries Limited | Automatic urinal flushing system |
| DE10032463C1 (en) * | 2000-07-04 | 2002-02-14 | Hansa Metallwerke Ag | plumbing |
| EP1489236A1 (en) * | 2003-06-18 | 2004-12-22 | Hansa Metallwerke Ag | Circuit arrangement for operating a touchless controlled sanitary device |
| FR2858089B1 (en) * | 2003-07-21 | 2006-02-24 | Valeo Securite Habitacle | METHOD FOR CONTROLLING A USER PRESENCE DETECTION DEVICE FOR A MOTOR VEHICLE |
| EP1908384B1 (en) * | 2005-07-26 | 2016-05-04 | Mitsubishi Electric Corporation | Hand drying device |
| GB0515750D0 (en) | 2005-07-30 | 2005-09-07 | Dyson Technology Ltd | Drying apparatus |
| GB0515744D0 (en) * | 2005-07-30 | 2005-09-07 | Dyson Technology Ltd | Dryer |
| GB2428569B (en) | 2005-07-30 | 2009-04-29 | Dyson Technology Ltd | Dryer |
| GB0515754D0 (en) | 2005-07-30 | 2005-09-07 | Dyson Technology Ltd | Drying apparatus |
| GB0515749D0 (en) | 2005-07-30 | 2005-09-07 | Dyson Technology Ltd | Drying apparatus |
| GB2434094A (en) | 2006-01-12 | 2007-07-18 | Dyson Technology Ltd | Drying apparatus with sound-absorbing material |
| US7523885B2 (en) * | 2006-10-31 | 2009-04-28 | Kimberly-Clark Worldwide, Inc. | Hands-free electronic towel dispenser with power saving feature |
| KR101239482B1 (en) | 2007-03-23 | 2013-03-06 | 퀄컴 인코포레이티드 | Multi-sensor data collection and/or processing |
| WO2009039290A2 (en) | 2007-09-20 | 2009-03-26 | Bradley Fixtures Corporation | Lavatory system |
| US7952233B2 (en) | 2008-12-31 | 2011-05-31 | Bradley Fixtures Corporation | Lavatory system |
| EP2486194B1 (en) | 2009-10-07 | 2022-08-24 | Bradley Fixtures Corporation | Lavatory system with hand dryer |
| CN102373739A (en) * | 2010-08-06 | 2012-03-14 | 陆建钢 | Automatic drainage valve of pedestal pan and working method thereof |
| CN101964652B (en) * | 2010-09-13 | 2013-01-09 | 深圳和而泰智能控制股份有限公司 | Infrared induction control circuit, device and hand drier control device |
| US9758953B2 (en) | 2012-03-21 | 2017-09-12 | Bradley Fixtures Corporation | Basin and hand drying system |
| US9267736B2 (en) | 2011-04-18 | 2016-02-23 | Bradley Fixtures Corporation | Hand dryer with point of ingress dependent air delay and filter sensor |
| USD663016S1 (en) | 2011-08-25 | 2012-07-03 | Bradley Fixtures Corporation | Lavatory system with integrated hand dryer |
| 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 |
| US10041236B2 (en) | 2016-06-08 | 2018-08-07 | Bradley Corporation | Multi-function fixture for a lavatory system |
| DE102021128980A1 (en) | 2021-11-08 | 2023-05-11 | Grohe Ag | Sensor arrangement for detecting a person in a usage area of a sanitary facility |
-
1992
- 1992-05-14 CA CA 2068693 patent/CA2068693A1/en not_active Abandoned
- 1992-06-05 DE DE19924218658 patent/DE4218658A1/en not_active Withdrawn
- 1992-06-19 JP JP16120392A patent/JPH05196746A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8857786B2 (en) | 2004-01-23 | 2014-10-14 | Bradley Fixtures Corporation | Lavatory system |
| US8984679B2 (en) | 2004-01-23 | 2015-03-24 | Bradley Fixtures Corporation | Lavatory system |
| US11096530B2 (en) | 2017-06-15 | 2021-08-24 | Global Innovations, Llc | Toilet closure systems |
| US12114816B2 (en) | 2017-06-15 | 2024-10-15 | Global Innovations, Llc | Toilet closure systems |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4218658A1 (en) | 1992-12-24 |
| JPH05196746A (en) | 1993-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2068693A1 (en) | Battery-operated urinal/closet flush valve | |
| US5699833A (en) | Electro-mechanical fluid flow control apparatus | |
| JP2620579B2 (en) | Automatic flow control device | |
| JPH0733561Y2 (en) | Storage battery charge prevention device | |
| JPH07100948B2 (en) | Power supply method in automatic water supply device | |
| EP1057942A2 (en) | Automatic urinal flushing system | |
| CA2557704A1 (en) | Method and apparatus for actuating a self-flushing toilet having a dual threshold sensor | |
| JP3442560B2 (en) | Flush toilet water supply system | |
| JPH0246728B2 (en) | ||
| JP2005336753A (en) | Toilet bowl flushing device and toilet system | |
| JP2847464B2 (en) | Water supply control device | |
| JPH0885985A (en) | Water faucet device with water stop function at power failure | |
| JP3625614B2 (en) | Equipment control device | |
| JPH083491Y2 (en) | Automatic flushing device for urinals | |
| JP2533835Y2 (en) | Automatic urinal cleaning device for men | |
| JPS62280432A (en) | Water feed controller | |
| JPH06248677A (en) | Automatic washing device of urinal | |
| JP2654303B2 (en) | Automatic cleaning control device for various sanitary appliances | |
| JP3406717B2 (en) | Sanitary fitting cleaning equipment | |
| JP3456101B2 (en) | Object detection device | |
| JP3406721B2 (en) | Sanitary fitting cleaning equipment | |
| JPH10311071A (en) | Water feed device | |
| SPECIFICATIONS | Designed for | |
| JPH09250157A (en) | Water supply device for water closet | |
| JP2000291107A (en) | Control device for sanitary washing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |