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GB1489971A - Device for protection against flooding - Google Patents

Device for protection against flooding

Info

Publication number
GB1489971A
GB1489971A GB3597/75A GB359775A GB1489971A GB 1489971 A GB1489971 A GB 1489971A GB 3597/75 A GB3597/75 A GB 3597/75A GB 359775 A GB359775 A GB 359775A GB 1489971 A GB1489971 A GB 1489971A
Authority
GB
United Kingdom
Prior art keywords
switch
machine
valve
force
close
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.)
Expired
Application number
GB3597/75A
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.)
Husqvarna AB
Original Assignee
Husqvarna AB
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 Husqvarna AB filed Critical Husqvarna AB
Publication of GB1489971A publication Critical patent/GB1489971A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • 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 
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

1489971 Dishwashers HUSQVARNA AB 28 Jan 1975 [1 Feb 1974] 3597/75 Heading A4F [Also in Divisions D1, G 1 and H1] A flood protection device is located in a machine to which liquid is fed and/or discharged via an electromagnetic valve 5, e.g. a washing machine or a dish-washing machine, and comprises a body of material 14 which resists the force of a switch actuator 12 when dry to cause a switch 10 connected in series with the valve 5 to be closed but which yields to the force of the switch actuator 12 when wet to cause the switch 10 to open and the valve 5 to close. In the embodiment described, the switch 10 comprises a micro-switch having a spring arm 12 which is normally biased to close the switch 10 by a member 14 of porous plastics or water soluble material. Any water leaking from the machine collects in a bottom plate 1 where the member 14 is positioned causing the latter to become wet and to be compressed by the spring force of the arm 12. The switch 10 is thereby opened causing the valve 5 to shut off the water supply to the machine. The electrical circuit of the machine also includes a programme mechanism 4, a circulation pump 6, a heating element 7 and a signalling device 8.
GB3597/75A 1974-02-01 1975-01-28 Device for protection against flooding Expired GB1489971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7401346A SE371714B (en) 1974-02-01 1974-02-01

Publications (1)

Publication Number Publication Date
GB1489971A true GB1489971A (en) 1977-10-26

Family

ID=20320087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3597/75A Expired GB1489971A (en) 1974-02-01 1975-01-28 Device for protection against flooding

Country Status (9)

Country Link
AT (1) AT335105B (en)
CH (1) CH593552A5 (en)
DE (1) DE2504142A1 (en)
DK (1) DK138187B (en)
FI (1) FI58224C (en)
GB (1) GB1489971A (en)
NL (1) NL7500867A (en)
NO (1) NO750213L (en)
SE (1) SE371714B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184749A (en) * 1985-12-30 1987-07-01 George Barber Gill Leak protection apparatus
GB2199436A (en) * 1986-11-28 1988-07-06 B & R Electrical Prod Ltd Detection of fluid leakage
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
EP1028190A2 (en) * 1999-02-12 2000-08-16 ELTEK S.p.A. Liquid detector and anti-flooding device using such detector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839768A1 (en) * 1978-09-13 1980-03-27 Hans Wildt MONITORING DEVICE
DE3240868C2 (en) * 1982-11-05 1985-04-11 Honeywell-Braukmann GmbH, 6950 Mosbach Leak water protection
DE3321314A1 (en) * 1983-06-13 1984-12-13 Diehn, Manfred, 2000 Hamburg Detector for fluid
DE3520863A1 (en) * 1985-06-11 1986-12-11 Miele & Cie GmbH & Co, 4830 Gütersloh Safety device to protect against damage caused by leakage water in water-carrying domestic appliances
IT1267509B1 (en) * 1993-02-04 1997-02-05 Eltek Spa SAFETY DEVICE AGAINST LIQUID LEAKS, IN PARTICULAR FOR DOMESTIC WASHING MACHINES.
SE9501130D0 (en) * 1995-03-29 1995-03-29 Mats Linder Device for wet room installations
FR2752249B1 (en) * 1996-08-06 1998-10-23 Walgraffe Gerard CONTROL AND SAFETY CONNECTION BOX FOR DOMESTIC WASHING MACHINE
DE102019114337A1 (en) * 2019-05-28 2020-12-03 Zf Automotive Germany Gmbh Steering device for a motor vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184749A (en) * 1985-12-30 1987-07-01 George Barber Gill Leak protection apparatus
GB2184749B (en) * 1985-12-30 1989-10-18 George Barber Gill Leak protection apparatus
GB2199436A (en) * 1986-11-28 1988-07-06 B & R Electrical Prod Ltd Detection of fluid leakage
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
GB2272553B (en) * 1992-11-13 1996-06-12 O Dea Francis Joseph Means for detecting water leakages from appliances
EP1028190A2 (en) * 1999-02-12 2000-08-16 ELTEK S.p.A. Liquid detector and anti-flooding device using such detector
EP1028190A3 (en) * 1999-02-12 2002-04-17 ELTEK S.p.A. Liquid detector and anti-flooding device using such detector

Also Published As

Publication number Publication date
NL7500867A (en) 1975-08-05
DK685874A (en) 1975-09-22
FI58224B (en) 1980-08-29
ATA29975A (en) 1976-06-15
DK138187C (en) 1979-01-02
FI379174A (en) 1975-08-02
FI58224C (en) 1980-12-10
DE2504142A1 (en) 1975-08-07
AT335105B (en) 1977-02-25
CH593552A5 (en) 1977-12-15
DK138187B (en) 1978-07-24
NO750213L (en) 1975-08-25
SE371714B (en) 1974-11-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee