WO2007140245A3 - Method and apparatus for monitoring the condition of a flexible filter - Google Patents

Method and apparatus for monitoring the condition of a flexible filter Download PDF

Info

Publication number
WO2007140245A3
WO2007140245A3 PCT/US2007/069649 US2007069649W WO2007140245A3 WO 2007140245 A3 WO2007140245 A3 WO 2007140245A3 US 2007069649 W US2007069649 W US 2007069649W WO 2007140245 A3 WO2007140245 A3 WO 2007140245A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filtering region
interior filtering
condition
monitoring
Prior art date
Application number
PCT/US2007/069649
Other languages
French (fr)
Other versions
WO2007140245A2 (en
Inventor
Ronald C Johansson
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of WO2007140245A2 publication Critical patent/WO2007140245A2/en
Publication of WO2007140245A3 publication Critical patent/WO2007140245A3/en

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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/25—Air filter condition indicator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/34—Indicator and controllers

Abstract

A system for periodically or continuously monitoring the condition of a filter includes a filter having a peripheral frame and a flexible interior filtering region, a fixed support structure for receiving the filter and maintaining the perimeter of the filter frame in a generally fixed position while allowing the interior filtering region to flex in response to flow through the filter, and a force measuring device mounted on the downstream side of the filter adjacent the interior filtering region in a fixed position relative to the supporting structure, whereby as the interior filtering region flexes in response to flow through the filter, the interior filtering region exerts a force on the force measuring device that increases with the degree of clogging of the filter. A method of monitoring the condition of a filter is also disclosed.
PCT/US2007/069649 2006-05-26 2007-05-24 Method and apparatus for monitoring the condition of a flexible filter WO2007140245A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/420,663 US7594960B2 (en) 2006-05-26 2006-05-26 Method and apparatus for monitoring the condition of a flexible filter
US11/420,663 2006-05-26

Publications (2)

Publication Number Publication Date
WO2007140245A2 WO2007140245A2 (en) 2007-12-06
WO2007140245A3 true WO2007140245A3 (en) 2008-01-31

Family

ID=38748305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/069649 WO2007140245A2 (en) 2006-05-26 2007-05-24 Method and apparatus for monitoring the condition of a flexible filter

Country Status (2)

Country Link
US (1) US7594960B2 (en)
WO (1) WO2007140245A2 (en)

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US9594384B2 (en) 2012-07-26 2017-03-14 Honeywell International Inc. Method of associating an HVAC controller with an external web service
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US10094585B2 (en) 2013-01-25 2018-10-09 Honeywell International Inc. Auto test for delta T diagnostics in an HVAC system
US9584119B2 (en) 2013-04-23 2017-02-28 Honeywell International Inc. Triac or bypass circuit and MOSFET power steal combination
US9806705B2 (en) 2013-04-23 2017-10-31 Honeywell International Inc. Active triac triggering circuit
BR112015028118A2 (en) 2013-05-09 2017-07-25 Procter & Gamble retractable air filtration device
MX2015015465A (en) 2013-05-09 2016-06-14 Procter & Gamble Methods of filtering air.
MX2015015461A (en) 2013-05-09 2016-03-07 Procter & Gamble Air filtering device.
KR102256009B1 (en) 2013-05-09 2021-05-25 더 프록터 앤드 갬블 캄파니 Air filtering device
US9983244B2 (en) 2013-06-28 2018-05-29 Honeywell International Inc. Power transformation system with characterization
US11054448B2 (en) 2013-06-28 2021-07-06 Ademco Inc. Power transformation self characterization mode
US10811892B2 (en) 2013-06-28 2020-10-20 Ademco Inc. Source management for a power transformation system
US9857091B2 (en) 2013-11-22 2018-01-02 Honeywell International Inc. Thermostat circuitry to control power usage
US9673811B2 (en) 2013-11-22 2017-06-06 Honeywell International Inc. Low power consumption AC load switches
US9587848B2 (en) 2013-12-11 2017-03-07 Honeywell International Inc. Building automation controller with rear projecting light
WO2015094049A1 (en) * 2013-12-19 2015-06-25 Camfil Ab Air filtering device with means for salt load determination and method for monitoring filtration
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BR112019003919A2 (en) * 2016-08-26 2019-05-21 3M Innovative Properties Company pleated filter element comprising an edge barrier pleated filter medium, and method of manufacture and use
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US3928006A (en) * 1974-08-29 1975-12-23 Richard P Martineau Device for signalling dirty filters
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Also Published As

Publication number Publication date
US7594960B2 (en) 2009-09-29
US20070272082A1 (en) 2007-11-29
WO2007140245A2 (en) 2007-12-06

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