CA996659A - Filter with condition indicator - Google Patents

Filter with condition indicator

Info

Publication number
CA996659A
CA996659A CA177,833A CA177833A CA996659A CA 996659 A CA996659 A CA 996659A CA 177833 A CA177833 A CA 177833A CA 996659 A CA996659 A CA 996659A
Authority
CA
Canada
Prior art keywords
filter
condition indicator
indicator
condition
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
CA177,833A
Other versions
CA177833S (en
Inventor
Gerard T. Perkins
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.)
Parker Hannifin Corp
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
Application granted granted Critical
Publication of CA996659A publication Critical patent/CA996659A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147—Bypass or safety valves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Fluid-Pressure Circuits (AREA)
CA177,833A 1972-07-31 1973-07-24 Filter with condition indicator Expired CA996659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27669472A 1972-07-31 1972-07-31

Publications (1)

Publication Number Publication Date
CA996659A true CA996659A (en) 1976-09-07

Family

ID=23057709

Family Applications (1)

Application Number Title Priority Date Filing Date
CA177,833A Expired CA996659A (en) 1972-07-31 1973-07-24 Filter with condition indicator

Country Status (5)

Country Link
US (1) US3794168A (en)
JP (1) JPS4958466A (en)
CA (1) CA996659A (en)
DE (1) DE2335276A1 (en)
GB (1) GB1413366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110585784A (en) * 2019-09-18 2019-12-20 河南城建学院 Filter screen for water quality monitoring

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928201A (en) * 1974-08-08 1975-12-23 Caterpillar Tractor Co Filter mounting and bypass valve assembly
US4053410A (en) * 1975-09-10 1977-10-11 Caterpillar Tractor Co. Filter assembly with modulating bypass valve
US4366837A (en) * 1980-12-09 1983-01-04 Cummins Engine Company, Inc. Early warning bypass valve assembly
US4423751A (en) * 1980-12-09 1984-01-03 Cummins Engine Company, Inc. Bypass valve and alarm assembly
IT1181657B (en) * 1985-05-06 1987-09-30 Ital Idee Srl FILTER FOR LUBRICANT OIL FOR INTERNAL COMBUSTION ENGINES, IN PARTICULAR OF MOTOR VEHICLES, WITH CONTROL BODIES FOR THE CLOGGING LEVEL OF THE FILTER SURFACE
IT207038Z2 (en) * 1986-02-14 1987-11-02 G N G Di Gisonno E Graziano S DIFFERENTIAL CLOGGING DETECTOR DEVICE FOR A FILTER FOR HYDRAULIC FLUIDS
US4721563A (en) * 1986-09-11 1988-01-26 Rosaen Borje O Fluid filtering device
WO1997026979A1 (en) * 1996-01-22 1997-07-31 Centrax Limited Oil reclamation device
GB2309174A (en) * 1996-01-22 1997-07-23 Richard Henry Howard Barr Oil reclamation device
US6860988B2 (en) * 2002-12-23 2005-03-01 Envirogard Products Ltd. Fluid filtration system with fluid flow meter
EP1479426A1 (en) * 2003-05-21 2004-11-24 Levitronix LLC Filter device and method for indicating the condition of the filter element
US8337693B2 (en) * 2006-03-10 2012-12-25 Whirlpool Corporation Enhanced filter indicatior for refrigerator
US20090230034A1 (en) * 2008-03-14 2009-09-17 Darnell Justin R Filter cartridge
CN104936670B (en) 2013-01-24 2016-12-28 康明斯过滤Ip公司 Dummy filters situation sensors
DE102013019807B4 (en) * 2013-11-26 2023-07-20 Hydac Filtertechnik Gmbh Filter device and filter element
WO2016146227A1 (en) 2015-03-19 2016-09-22 Hydac Filtertechnik Gmbh Filter apparatus
DE102015003604A1 (en) * 2015-03-19 2016-09-22 Hydac Filtertechnik Gmbh filter means
CN105540891B (en) * 2015-12-11 2019-06-28 浙江沁园水处理科技有限公司 A kind of purifier and its filter element life real-time monitor
US10941683B2 (en) * 2016-09-23 2021-03-09 Bell Helicopter Textron Inc. Oil filter with impending and full-bypass indicators
EP3958996B1 (en) * 2019-07-25 2024-03-13 RT-Filtertechnik GmbH Filter apparatus
DE102019005324A1 (en) * 2019-07-25 2021-01-28 Rt-Filtertechnik Gmbh Filter device
DE102021102116A1 (en) 2020-01-29 2021-07-29 Ifm Electronic Gmbh Device for filter monitoring of a filter station

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142723C (en) * 1901-05-05 1903-07-27
DE1155187B (en) * 1959-02-25 1963-10-03 Bauer Eugen Gmbh Short-time switch for switching a circuit for a limited period of time
US3046369A (en) * 1959-04-27 1962-07-24 Beatrice A Hicks Device for sensing gas density
US3323649A (en) * 1966-02-14 1967-06-06 Rosaen Filter Co Filter device and electrical indicating means
US3644915A (en) * 1969-08-27 1972-02-22 Allis Chalmers Mfg Co Filter bypass indicator
US3545616A (en) * 1969-09-05 1970-12-08 Sperry Rand Corp Filter and indicator means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110585784A (en) * 2019-09-18 2019-12-20 河南城建学院 Filter screen for water quality monitoring
CN110585784B (en) * 2019-09-18 2021-06-11 河南城建学院 Filter screen for water quality monitoring

Also Published As

Publication number Publication date
US3794168A (en) 1974-02-26
JPS4958466A (en) 1974-06-06
DE2335276A1 (en) 1974-02-14
GB1413366A (en) 1975-11-12

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