EP1423678A4 - Clogged filter detector - Google Patents

Clogged filter detector

Info

Publication number
EP1423678A4
EP1423678A4 EP02761233A EP02761233A EP1423678A4 EP 1423678 A4 EP1423678 A4 EP 1423678A4 EP 02761233 A EP02761233 A EP 02761233A EP 02761233 A EP02761233 A EP 02761233A EP 1423678 A4 EP1423678 A4 EP 1423678A4
Authority
EP
European Patent Office
Prior art keywords
clogged filter
filter detector
detector
clogged
filter
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Withdrawn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
EP02761233A
Other languages
German (de)
French (fr)
Other versions
EP1423678A2 (en
Inventor
David Wilson
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
Publication of EP1423678A2 publication Critical patent/EP1423678A2/en
Publication of EP1423678A4 publication Critical patent/EP1423678A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/26—Making use of optical waves, e.g. for measurements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Air Conditioning Control Device (AREA)
EP02761233A 2001-08-06 2002-08-01 Clogged filter detector Withdrawn EP1423678A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31037701P 2001-08-06 2001-08-06
US310377P 2001-08-06
PCT/US2002/024760 WO2003014838A2 (en) 2001-08-06 2002-08-01 Clogged filter detector

Publications (2)

Publication Number Publication Date
EP1423678A2 EP1423678A2 (en) 2004-06-02
EP1423678A4 true EP1423678A4 (en) 2005-05-25

Family

ID=23202222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02761233A Withdrawn EP1423678A4 (en) 2001-08-06 2002-08-01 Clogged filter detector

Country Status (3)

Country Link
EP (1) EP1423678A4 (en)
AU (1) AU2002326513A1 (en)
WO (1) WO2003014838A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008547057A (en) 2005-06-24 2008-12-25 スリーエム イノベイティブ プロパティズ カンパニー Optical device and method with cantilevered fiber array
JP5991893B2 (en) * 2012-09-26 2016-09-14 シャープ株式会社 Filter device and air conditioner
US9207727B2 (en) 2014-02-24 2015-12-08 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Determining air filter replacement conditions using air flow and energy consumption values
FR3029610B1 (en) * 2014-12-05 2019-09-20 Schneider Electric Industries Sas ENCRAGEMENT DETECTION FILTER SYSTEM FOR HEATING, VENTILATION OR AIR CONDITIONING INSTALLATION
US20220331729A1 (en) * 2021-04-19 2022-10-20 B/E Aerospace, Inc. Clogged air filter detection for galley inserts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147697A (en) * 1983-10-05 1985-05-15 Fraunhofer Ges Forschung Level measurement method and apparatus
DE3644045A1 (en) * 1986-12-22 1988-06-30 Wilhelm Doerenkaemper Apparatus for monitoring the soiling of gas filters, in particular air filters
DE3716049A1 (en) * 1987-05-14 1988-11-24 Hagenuk Telecom Gmbh Device for monitoring air filters having filter mats
US5796472A (en) * 1996-09-10 1998-08-18 Wirthlin; Alvin R. Optical translucency indicator for measurement of air filter dirtiness, liquid level, thickness, and other parameters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014442A1 (en) * 1990-05-05 1991-11-07 Duepro Ag DEVICE FOR DISPLAYING THE DEGREE OF POLLUTION OF AIR FILTERS IN SUCTION CLEANING DEVICES, ROOM FILTERS OR THE LIKE.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147697A (en) * 1983-10-05 1985-05-15 Fraunhofer Ges Forschung Level measurement method and apparatus
DE3644045A1 (en) * 1986-12-22 1988-06-30 Wilhelm Doerenkaemper Apparatus for monitoring the soiling of gas filters, in particular air filters
DE3716049A1 (en) * 1987-05-14 1988-11-24 Hagenuk Telecom Gmbh Device for monitoring air filters having filter mats
US5796472A (en) * 1996-09-10 1998-08-18 Wirthlin; Alvin R. Optical translucency indicator for measurement of air filter dirtiness, liquid level, thickness, and other parameters

Also Published As

Publication number Publication date
WO2003014838A3 (en) 2003-04-10
WO2003014838A2 (en) 2003-02-20
WO2003014838B1 (en) 2003-05-22
EP1423678A2 (en) 2004-06-02
AU2002326513A1 (en) 2003-02-24

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Legal Events

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