[go: up one dir, main page]

GB2182181A - Wet blanket loft sensor - Google Patents

Wet blanket loft sensor Download PDF

Info

Publication number
GB2182181A
GB2182181A GB08504743A GB8504743A GB2182181A GB 2182181 A GB2182181 A GB 2182181A GB 08504743 A GB08504743 A GB 08504743A GB 8504743 A GB8504743 A GB 8504743A GB 2182181 A GB2182181 A GB 2182181A
Authority
GB
United Kingdom
Prior art keywords
liquid
impurities
blanket
electrical
sponge
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Withdrawn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
GB08504743A
Other versions
GB8504743D0 (en
Inventor
Arthur Leonard Lewis
Freda Sylvia Lewis
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 GB08504743A priority Critical patent/GB2182181A/en
Publication of GB8504743D0 publication Critical patent/GB8504743D0/en
Publication of GB2182181A publication Critical patent/GB2182181A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/48—Devices for preventing wetting or pollution of the bed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/20—Status alarms responsive to moisture

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Nursing (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Emergency Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biochemistry (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Electrical conductive electrode C is a perforated metal foil to allow liquid penetration, to the salt impregnated absorbant sponge or paper which is in contact with foil D which acts as the other electrical conductive electrode. The PVC sheet retains excess liquids. The sponge or paper is high resistive when dry, and low resistive when wet or damp. Electrodes C and D are connected to an electrical alarm circuit. <IMAGE>

Description

SPECIFICATION Wet blanket loft sensor Water penertraits top perforated foil, C sponge absorbs water, and bridges the normal dry sponge, to provide a measurable drop in electrical resistance to that of the bottom metal foil D. Electrical connections are made to metal foil C and D, and fed to local batterytransisterised alarm. The plastic PVC damp proof type sheet acts as both electrical insulator and will hold some water to prevent damage.
Blankets can be parrelleled electricalyto alarm.
With referanceto diagram sheet 1 of 2.
C Cis, a perforated metal foil.
B is, water absorbant sponge or paper, fire retard, salt impregnated.
D is, an unperforated metal foil.
A is, a plastic PVC sheet electrical and water proof.

Claims (1)

1. A water based liquid detector, inflexible blanket form, made in sanwich form as shown in diagram, the addition of salt as an inert electrical resistor, when dry high resistance. To a low electrical re sistancewhenasmall amount of liquid strikes the detectors surface. As other detectors rely on the build up of impurities in the liquid to function. The wet blanket loftsensor hasthe impurities ofsaltin- ertly incorporated into it, and does not rely on liquid impurities only, allowing rapid responce to receiver.
GB08504743A 1985-02-23 1985-02-23 Wet blanket loft sensor Withdrawn GB2182181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08504743A GB2182181A (en) 1985-02-23 1985-02-23 Wet blanket loft sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08504743A GB2182181A (en) 1985-02-23 1985-02-23 Wet blanket loft sensor

Publications (2)

Publication Number Publication Date
GB8504743D0 GB8504743D0 (en) 1985-03-27
GB2182181A true GB2182181A (en) 1987-05-07

Family

ID=10575010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08504743A Withdrawn GB2182181A (en) 1985-02-23 1985-02-23 Wet blanket loft sensor

Country Status (1)

Country Link
GB (1) GB2182181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716261A1 (en) * 1994-02-17 1995-08-18 Jpc Ets Detector for humidity measuring device
WO2001006975A1 (en) * 1999-07-22 2001-02-01 Bed-Check Corporation Apparatus for detecting enuresis in a patient
GB2365608A (en) * 2000-03-21 2002-02-20 Michael James Mowbray Rous Water leak alarm
GB2442015A (en) * 2006-09-19 2008-03-26 Francis Bernard Sheehan Liquid leak detection system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1200974A (en) * 1968-01-23 1970-08-05 English Electric Co Ltd Improvements in sensing devices
GB1352685A (en) * 1970-04-29 1974-05-08 Nat Res Dev Incontinence measurement
US4347503A (en) * 1981-02-17 1982-08-31 Health Guardian Company Bedwetting detection device
GB2113438A (en) * 1981-10-02 1983-08-03 Eastwood And Son Limited N H Improvements in and relating to devices for use in treating nocturnal enuresis
US4502044A (en) * 1982-05-19 1985-02-26 Farris James R Moisture alarm system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1200974A (en) * 1968-01-23 1970-08-05 English Electric Co Ltd Improvements in sensing devices
GB1352685A (en) * 1970-04-29 1974-05-08 Nat Res Dev Incontinence measurement
US4347503A (en) * 1981-02-17 1982-08-31 Health Guardian Company Bedwetting detection device
GB2113438A (en) * 1981-10-02 1983-08-03 Eastwood And Son Limited N H Improvements in and relating to devices for use in treating nocturnal enuresis
US4502044A (en) * 1982-05-19 1985-02-26 Farris James R Moisture alarm system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716261A1 (en) * 1994-02-17 1995-08-18 Jpc Ets Detector for humidity measuring device
WO2001006975A1 (en) * 1999-07-22 2001-02-01 Bed-Check Corporation Apparatus for detecting enuresis in a patient
US6292102B1 (en) 1999-07-22 2001-09-18 Bed-Check Corporation Apparatus for detecting enuresis in a patient
GB2365608A (en) * 2000-03-21 2002-02-20 Michael James Mowbray Rous Water leak alarm
GB2442015A (en) * 2006-09-19 2008-03-26 Francis Bernard Sheehan Liquid leak detection system

Also Published As

Publication number Publication date
GB8504743D0 (en) 1985-03-27

Similar Documents

Publication Publication Date Title
FR2635919B1 (en) ELECTROCHEMICAL CELL COMPRISING AN INTERNAL CIRCUIT SWITCH
JPS52123745A (en) Absorptive structure having improved surface drying degree and improved using remoistening resistance
HK82589A (en) Circuit protection devices
JPH10199574A5 (en)
US4563674A (en) Oil leak detector
DD131381A5 (en) MEMBRANE ELECTROLYSIS CELL WITH MONOPOLAR ELECTRODES
KR880011589A (en) Sheet type electrode for ion measurement
GB2182181A (en) Wet blanket loft sensor
GB2017925A (en) Solid electrolyte oxygen sensor with electrically isolated heater
JPS57152630A (en) Thermal responsive element as control element and electric switching device with switching element composed as microswitch
JPS5661897A (en) Display unit
GB2377995A (en) Water detection device with co-planar electrodes
FI793208A7 (en) Polymers with improved solvent resistance in electrically conductive paper.
JPS5626249A (en) Humidity sensor
JPS5339095A (en) Photo detector
RU96111167A (en) HUMIDITY SENSOR
JPS5616876A (en) Effective value detecting element
AU1823283A (en) Electrically conductive laminate having improved resistance stability and its use in heating
JPH0511387U (en) Sheet for sheet heating element and sheet heating element
AT359595B (en) CONTACT DEVICE IN AN ELECTRICALLY CONDUCTIVE TURNING CONNECTION
SU470563A1 (en) Conductive paper
JPS5319413A (en) Electric conductive paper with excellent water proofness
JPH02129859U (en)
JPS63202Y2 (en)
JPS53123443A (en) Self-heating hot-metal adhesive

Legal Events

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