GB2329501A - A liquid overflow detection system - Google Patents

A liquid overflow detection system Download PDF

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Publication number
GB2329501A
GB2329501A GB9719499A GB9719499A GB2329501A GB 2329501 A GB2329501 A GB 2329501A GB 9719499 A GB9719499 A GB 9719499A GB 9719499 A GB9719499 A GB 9719499A GB 2329501 A GB2329501 A GB 2329501A
Authority
GB
United Kingdom
Prior art keywords
tray
liquid
sensor
appliance
detection system
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.)
Withdrawn
Application number
GB9719499A
Other versions
GB9719499D0 (en
Inventor
Carlton Ashley Rae
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9719499A priority Critical patent/GB2329501A/en
Publication of GB9719499D0 publication Critical patent/GB9719499D0/en
Publication of GB2329501A publication Critical patent/GB2329501A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/081—Safety arrangements for preventing water damage
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

A system for detecting water escaping from a domestic appliance comprises a tray (10) for collecting the water, a sensor (21) for detecting the presence of water in the tray (10) and control means (24) operable in response to signals received from the sensor (21) for controlling supply of power to the appliance whereby the power is switched off if the sensor (21) detects the presence of water in the tray (10). The tray (10) is provided with a removable portion (16) so that an appliance may be removed from and returned to the tray (10).

Description

A Liquid Overflow Detection System This invention relates to a liquid overflow detection system particularly, but not exclusively, for detecting overflow of liquid from a domestic appliance, such as a washing machine.
It is common in buildings segregated into tiered apartments for the apartments each to have one or more domestic appliances for effecting washing of articles, such as clothes washing machines and dishwashers. It is also known that, from time to time, such appliances develop faults as a result of which liquid contained within the appliances overflows therefrom. Generally, liquid overflowing from a domestic appliance on an upper floor seeps through the floor to an apartment below and causes damage.
It is desirable, therefore, to provide a liquid overflow detection system.
According to the present invention, there is provided a liquid overflow detection system comprising a tray for collecting liquid overflowing from an electrically operable appliance, a sensor for detecting presence of liquid in the tray and control means operable in response to signals received from the sensor for controlling supply of power to the appliance whereby power to the appliance is switched off if the sensor detects presence of liquid in the tray.
Following is a description, by way of example only and with reference to the accompanying drawing, which is diagrammatic representation, of one method of carrying the invention into effect.
Referring to the drawing, there is shown a tray 10 comprising a rectangular base 11 and walls 12,13 and 14 upstanding from three edge margins of the base 11. The wall 13 is provided in an outlet 15.
A component 16 is provided for establishing a fourth wall 17 for the tray 10, the component 16 comprising an elongate marginal strip 18 formed integrally with the wall 17 and extending at right angles thereto and end walls 19,20 extending from opposite end portions of the wall 17 at right angles thereto. In use, the component 16 is bonded to the tray 10 by means of adhesive applied to a lower surface of the strip 18 and to the end walls 19,20 so that the strip 18 bonds with the base 11 and the end walls 19,20 bond with the walls 12 and 14 upstanding from the base 11.
The tray 11 is provided with a sensor 21 and is earthed, as shown at 22.
The sensor 21 is included in an electric circuit which also includes a circuit breaker 23, a pump 24 and solenoid valves 25,26. The circuit breaker 23 is provided with pins (not shown) for engaging in a power socket of a domestic electrical power supply and includes a socket 27 for receiving pins of a plug of a washing machine (not shown).
The pump 24 is connected to a non-return valve 28 located at a junction of a discharge hose 29 of the washing machine.
An inlet of the pump 24 is connected by means of a conduit 30 to the outlet 15 on the wall 13 of the tray 10.
The solenoid valves 25,26 are similar to those used in washing machines but are provided with threaded inlets and outlets so that they screw fit between the hot and cold water supply hoses and the washing machine.
The circuit breaker 23 is arranged so that, when the sensor 21 detects the presence of liquid in the tray 10, electrical power to the washing machine is switched off, the solenoid valves 25,26 are activated to close off supply of water to the washing machine and the pump 24 is activated to drain the liquid from the tray 10. When the sensor 21 detects that the liquid has been drained from the tray 10, the pump 24 is deactivated.
It will be appreciated that the purpose of the component 16 being separate from the tray 10 is such that a washing machine can be wheeled onto the tray 10 after the tray 10 has been positioned at a suitable location, the component 16 then being bonded to the tray 10. The component 16 being removable from the tray 10 also facilitates access to the washing machine if, for example, it is necessary to replace a filter of the machine.

Claims (5)

Claims
1. A liquid overflow detection system comprising a tray for collecting liquid overflowing from an electrically operable appliance, a sensor for detecting presence of liquid in the tray and control means operable in response to signals received from the sensor for controlling supply of power to the appliance whereby power to the appliance is switched off if the sensor detects presence of liquid in the tray.
2. A system as claimed in Claim 1 wherein there is provided a pump operable in response to signals received from the sensor for effecting removal of liquid in the tray.
3. A system as claimed in Claim 1 or Claim 2 wherein the control means is adapted to control supply of liquid to the appliance.
4. A system as claimed in any one of the preceding Claims wherein the tray is provided with a removable portion.
5. A liquid overflow detection system substantially as hereinbefore described and as illustrated in the accompanying drawings.
GB9719499A 1997-09-12 1997-09-12 A liquid overflow detection system Withdrawn GB2329501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9719499A GB2329501A (en) 1997-09-12 1997-09-12 A liquid overflow detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9719499A GB2329501A (en) 1997-09-12 1997-09-12 A liquid overflow detection system

Publications (2)

Publication Number Publication Date
GB9719499D0 GB9719499D0 (en) 1997-11-19
GB2329501A true GB2329501A (en) 1999-03-24

Family

ID=10819019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9719499A Withdrawn GB2329501A (en) 1997-09-12 1997-09-12 A liquid overflow detection system

Country Status (1)

Country Link
GB (1) GB2329501A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348033A (en) * 1999-03-16 2000-09-20 Nicholas George Foggin Water leakage warning device
GB2369707A (en) * 2000-11-29 2002-06-05 Malcolm David Warner Domestic flood prevention device
EP1210903A2 (en) * 2000-11-30 2002-06-05 Oy Ekspansio Engineering Limited Protective tray for washing machine
GB2369912A (en) * 2000-09-09 2002-06-12 Bw Technologies Ltd Leak detection
GB2407191A (en) * 2003-10-16 2005-04-20 Vincent Thorby Domestic appliance water leak sensor mat with automatic water catchment skirt
GB2435267A (en) * 2006-02-21 2007-08-22 Geoffrey James Smith Washing machine and waste pipe flood protection system
WO2010031092A1 (en) * 2008-09-17 2010-03-25 Ono Oil Gmbh Underground tank for a filling station
ES2383427A1 (en) * 2009-06-23 2012-06-21 BSH Electrodomésticos España S.A. Machine dishwasher, especially, domestic dishwasher machine (Machine-translation by Google Translate, not legally binding)
WO2013051998A1 (en) * 2011-10-05 2013-04-11 Modaressi Babak Device for prevention of water damage in connection with household appliances
CN106219020A (en) * 2016-08-30 2016-12-14 苏州富强科技有限公司 Charging tray assembly for full-automatic air-leakage test

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770002A (en) * 1971-11-01 1973-11-06 L Brown Automatic water shut-off system
GB2184749A (en) * 1985-12-30 1987-07-01 George Barber Gill Leak protection apparatus
GB2266396A (en) * 1992-04-21 1993-10-27 Michael John Shackell Leak detector
GB2272553A (en) * 1992-11-13 1994-05-18 O Dea Francis Joseph Apparatus for controlling flooding from a water using appliance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770002A (en) * 1971-11-01 1973-11-06 L Brown Automatic water shut-off system
GB2184749A (en) * 1985-12-30 1987-07-01 George Barber Gill Leak protection apparatus
GB2266396A (en) * 1992-04-21 1993-10-27 Michael John Shackell Leak detector
GB2272553A (en) * 1992-11-13 1994-05-18 O Dea Francis Joseph Apparatus for controlling flooding from a water using appliance

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348033A (en) * 1999-03-16 2000-09-20 Nicholas George Foggin Water leakage warning device
GB2369912A (en) * 2000-09-09 2002-06-12 Bw Technologies Ltd Leak detection
GB2369912B (en) * 2000-09-09 2004-12-15 Bw Technologies Ltd Leak detection apparatus
GB2369707A (en) * 2000-11-29 2002-06-05 Malcolm David Warner Domestic flood prevention device
EP1210903A2 (en) * 2000-11-30 2002-06-05 Oy Ekspansio Engineering Limited Protective tray for washing machine
EP1210903A3 (en) * 2000-11-30 2005-01-19 Oy Ekspansio Engineering Limited Protective tray for washing machine
GB2407191A (en) * 2003-10-16 2005-04-20 Vincent Thorby Domestic appliance water leak sensor mat with automatic water catchment skirt
GB2435267A (en) * 2006-02-21 2007-08-22 Geoffrey James Smith Washing machine and waste pipe flood protection system
WO2010031092A1 (en) * 2008-09-17 2010-03-25 Ono Oil Gmbh Underground tank for a filling station
ES2383427A1 (en) * 2009-06-23 2012-06-21 BSH Electrodomésticos España S.A. Machine dishwasher, especially, domestic dishwasher machine (Machine-translation by Google Translate, not legally binding)
WO2013051998A1 (en) * 2011-10-05 2013-04-11 Modaressi Babak Device for prevention of water damage in connection with household appliances
CN106219020A (en) * 2016-08-30 2016-12-14 苏州富强科技有限公司 Charging tray assembly for full-automatic air-leakage test
CN106219020B (en) * 2016-08-30 2018-06-08 苏州富强科技有限公司 For the charging tray component of full-automatic air-leakage test

Also Published As

Publication number Publication date
GB9719499D0 (en) 1997-11-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)