DE3428307A1 - Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern - Google Patents
Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfilternInfo
- Publication number
- DE3428307A1 DE3428307A1 DE19843428307 DE3428307A DE3428307A1 DE 3428307 A1 DE3428307 A1 DE 3428307A1 DE 19843428307 DE19843428307 DE 19843428307 DE 3428307 A DE3428307 A DE 3428307A DE 3428307 A1 DE3428307 A1 DE 3428307A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- display device
- cap
- piston
- lever
- 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.)
- Granted
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/60—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the intake of internal combustion engines or turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Mechanical Control Devices (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843428307 DE3428307A1 (de) | 1984-08-01 | 1984-08-01 | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
| AR85300834A AR242121A1 (es) | 1984-08-01 | 1985-06-27 | Dispositivo indicador del grado de ensuciamiento de filtros de admision. |
| FR8510470A FR2568484B1 (fr) | 1984-08-01 | 1985-07-09 | Dispositif d'affichage du degre de colmatage de filtres d'air aspire |
| ZA855209A ZA855209B (en) | 1984-08-01 | 1985-07-10 | Indicating device for the dirt accumulation on suction air filters |
| GB08518439A GB2164153B (en) | 1984-08-01 | 1985-07-22 | Pressure sensing apparatus for indicating the condition of an air filter |
| BR8503512A BR8503512A (pt) | 1984-08-01 | 1985-07-24 | Dispositivo indicador de grau de obstracao de filtro de ar |
| MX206134A MX157720A (es) | 1984-08-01 | 1985-07-30 | Dispositivo indicador del grado de ensuciamiento de filtro de admision |
| ES545762A ES8700072A1 (es) | 1984-08-01 | 1985-07-31 | Dispositivo indicador del grado de suciedad de filtros de aspiracion de aire |
| US06/761,289 US4688511A (en) | 1984-08-01 | 1985-08-01 | Dirt accumulation indicator for air intake filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843428307 DE3428307A1 (de) | 1984-08-01 | 1984-08-01 | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3428307A1 true DE3428307A1 (de) | 1986-02-13 |
| DE3428307C2 DE3428307C2 (enExample) | 1990-06-07 |
Family
ID=6242076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843428307 Granted DE3428307A1 (de) | 1984-08-01 | 1984-08-01 | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4688511A (enExample) |
| AR (1) | AR242121A1 (enExample) |
| BR (1) | BR8503512A (enExample) |
| DE (1) | DE3428307A1 (enExample) |
| ES (1) | ES8700072A1 (enExample) |
| FR (1) | FR2568484B1 (enExample) |
| GB (1) | GB2164153B (enExample) |
| MX (1) | MX157720A (enExample) |
| ZA (1) | ZA855209B (enExample) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3630430C1 (en) * | 1986-09-06 | 1987-10-29 | Knecht Filterwerke Gmbh | Indicator device for the degree of soiling of intake air filters |
| DE19506452A1 (de) * | 1995-02-24 | 1996-08-29 | Mann & Hummel Filter | Anzeigevorrichtung zur Anzeige des Unterdrucks |
| WO1996028236A1 (en) * | 1995-03-15 | 1996-09-19 | Memtec America Corporation | Filtration monitoring and control system |
| DE19751942A1 (de) * | 1997-11-24 | 1999-05-27 | Mann & Hummel Filter | Anzeigevorrichtung für den Verschmutzungsgrad eines Filterelements |
| US6202475B1 (en) * | 1997-05-30 | 2001-03-20 | Usf Filtration And Separations Group, Inc. | Predicting logarithmic reduction values |
| WO2007149445A1 (en) * | 2006-06-16 | 2007-12-27 | Engineered Products Company | Dial-type flow-restriction gauges |
Families Citing this family (88)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552153A (en) * | 1983-11-17 | 1985-11-12 | Welch Allyn Inc. | Pressure gauge |
| US5315838A (en) * | 1993-08-16 | 1994-05-31 | Whirlpool Corporation | Air conditioner filter monitor |
| US5575832A (en) * | 1994-09-21 | 1996-11-19 | Humidtech Research, Inc. | Regenerative hygroscopic filter and method |
| DE19506453A1 (de) * | 1995-02-24 | 1996-08-29 | Mann & Hummel Filter | Anzeigevorrichtung zur Anzeige des Unterdrucks |
| EP0842359A1 (en) * | 1995-08-04 | 1998-05-20 | Donaldson Company, Inc. | Restriction indicator for air cleaners |
| US6077435A (en) * | 1996-03-15 | 2000-06-20 | Usf Filtration And Separations Group Inc. | Filtration monitoring and control system |
| US20040232076A1 (en) * | 1996-12-20 | 2004-11-25 | Fufang Zha | Scouring method |
| CA2639642C (en) * | 1996-12-20 | 2013-01-15 | Siemens Water Technologies Corp. | Scouring method |
| US6641733B2 (en) * | 1998-09-25 | 2003-11-04 | U. S. Filter Wastewater Group, Inc. | Apparatus and method for cleaning membrane filtration modules |
| AU1585099A (en) * | 1997-11-14 | 1999-06-07 | Donaldson Company Inc. | Restriction indicator for air cleaners |
| AUPP985099A0 (en) | 1999-04-20 | 1999-05-13 | Usf Filtration And Separations Group Inc. | Membrane filtration manifold system |
| US6327902B1 (en) * | 1999-06-25 | 2001-12-11 | Engineered Products Company | Air filter restriction indicator gauge |
| US6289726B1 (en) * | 1999-06-30 | 2001-09-18 | Engineered Products Co. | Fuel filter gauge |
| AU6633600A (en) | 1999-08-16 | 2001-03-13 | Donaldson Company Inc. | Restriction indicator |
| US6190442B1 (en) * | 1999-08-31 | 2001-02-20 | Tishken Products Co. | Air filter gauge |
| AUPQ680100A0 (en) * | 2000-04-10 | 2000-05-11 | Usf Filtration And Separations Group Inc. | Hollow fibre restraining system |
| AUPR064800A0 (en) * | 2000-10-09 | 2000-11-02 | Usf Filtration And Separations Group Inc. | Improved membrane filtration system |
| AUPR094600A0 (en) * | 2000-10-23 | 2000-11-16 | Usf Filtration And Separations Group Inc. | Fibre membrane arrangement |
| AUPR143400A0 (en) * | 2000-11-13 | 2000-12-07 | Usf Filtration And Separations Group Inc. | Modified membranes |
| AUPR421501A0 (en) | 2001-04-04 | 2001-05-03 | U.S. Filter Wastewater Group, Inc. | Potting method |
| AUPR584301A0 (en) | 2001-06-20 | 2001-07-12 | U.S. Filter Wastewater Group, Inc. | Membrane polymer compositions |
| AUPR692401A0 (en) | 2001-08-09 | 2001-08-30 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
| AUPR774201A0 (en) * | 2001-09-18 | 2001-10-11 | U.S. Filter Wastewater Group, Inc. | High solids module |
| EP1312408B1 (en) * | 2001-11-16 | 2006-07-19 | US Filter Wastewater Group, Inc. | Method of cleaning membranes |
| US7247238B2 (en) | 2002-02-12 | 2007-07-24 | Siemens Water Technologies Corp. | Poly(ethylene chlorotrifluoroethylene) membranes |
| AUPS300602A0 (en) | 2002-06-18 | 2002-07-11 | U.S. Filter Wastewater Group, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
| JP4282598B2 (ja) | 2002-10-10 | 2009-06-24 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 濾過装置及び該濾過装置を洗浄する方法 |
| AU2002953111A0 (en) | 2002-12-05 | 2002-12-19 | U. S. Filter Wastewater Group, Inc. | Mixing chamber |
| AU2003903507A0 (en) * | 2003-07-08 | 2003-07-24 | U. S. Filter Wastewater Group, Inc. | Membrane post-treatment |
| JP4611982B2 (ja) | 2003-08-29 | 2011-01-12 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 逆洗方法 |
| AU2004289373B2 (en) | 2003-11-14 | 2010-07-29 | Evoqua Water Technologies Llc | Improved module cleaning method |
| WO2005092799A1 (en) | 2004-03-26 | 2005-10-06 | U.S. Filter Wastewater Group, Inc. | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
| JP2007535398A (ja) | 2004-04-22 | 2007-12-06 | シーメンス ウォーター テクノロジース コーポレイション | 有機物質を消化するためのメンブレンバイオリアクタおよび処理槽を含む濾過装置ならびに廃液処理方法 |
| JP2008504122A (ja) | 2004-07-02 | 2008-02-14 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 気体輸送膜 |
| US8524794B2 (en) | 2004-07-05 | 2013-09-03 | Siemens Industry, Inc. | Hydrophilic membranes |
| US7124627B2 (en) * | 2004-08-12 | 2006-10-24 | Illinois Tool Works Inc | Air filter restriction sensor assembly |
| NZ588094A (en) | 2004-08-20 | 2012-04-27 | Siemens Water Tech Corp | Potting head for hollow fibre filter module |
| US7137303B2 (en) * | 2004-08-31 | 2006-11-21 | Stanadyne Corporation | Filter change indicator |
| JP4838248B2 (ja) | 2004-09-07 | 2011-12-14 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 逆洗液体廃棄物の低減 |
| US8506806B2 (en) | 2004-09-14 | 2013-08-13 | Siemens Industry, Inc. | Methods and apparatus for removing solids from a membrane module |
| WO2006029465A1 (en) | 2004-09-15 | 2006-03-23 | Siemens Water Technologies Corp. | Continuously variable aeration |
| US7591950B2 (en) | 2004-11-02 | 2009-09-22 | Siemens Water Technologies Corp. | Submerged cross-flow filtration |
| US12172111B2 (en) | 2004-11-05 | 2024-12-24 | Donaldson Company, Inc. | Filter medium and breather filter structure |
| US8021457B2 (en) | 2004-11-05 | 2011-09-20 | Donaldson Company, Inc. | Filter media and structure |
| US8057567B2 (en) | 2004-11-05 | 2011-11-15 | Donaldson Company, Inc. | Filter medium and breather filter structure |
| EP2311542B1 (en) | 2004-11-05 | 2015-06-03 | Donaldson Company, Inc. | Aerosol separator |
| WO2006058384A1 (en) | 2004-12-03 | 2006-06-08 | Siemens Water Technologies Corp. | Membrane post treatment |
| JP2008525167A (ja) | 2004-12-24 | 2008-07-17 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 簡易ガス洗浄方法および当該技術分野の装置 |
| EP1835985B1 (en) | 2004-12-24 | 2012-03-14 | Siemens Industry, Inc. | Cleaning in membrane filtration systems |
| US7470360B2 (en) * | 2005-01-21 | 2008-12-30 | Engineered Products Company | Fluid flow restriction indicator |
| US7414207B2 (en) * | 2005-01-28 | 2008-08-19 | Engineered Products Company | Non-locking switch for filter monitoring |
| CN101151084B (zh) | 2005-02-04 | 2013-02-13 | 唐纳森公司 | 气溶胶分离器 |
| US8404014B2 (en) | 2005-02-22 | 2013-03-26 | Donaldson Company, Inc. | Aerosol separator |
| KR20080005993A (ko) | 2005-04-29 | 2008-01-15 | 지멘스 워터 테크놀로지스 코포레이션 | 막 필터의 화학 세정 |
| KR20080031956A (ko) | 2005-07-14 | 2008-04-11 | 지멘스 워터 테크놀로지스 코포레이션 | 막의 모노퍼술페이트 처리 방법 |
| SG164499A1 (en) | 2005-08-22 | 2010-09-29 | Siemens Water Tech Corp | An assembly for water filtration using a tube manifold to minimise backwash |
| US20070138090A1 (en) | 2005-10-05 | 2007-06-21 | Jordan Edward J | Method and apparatus for treating wastewater |
| WO2007044345A2 (en) | 2005-10-05 | 2007-04-19 | Siemens Water Technologies Corp. | Method and apparatus for treating wastewater |
| US7455765B2 (en) | 2006-01-25 | 2008-11-25 | Siemens Water Technologies Corp. | Wastewater treatment system and method |
| KR20090034976A (ko) * | 2006-07-14 | 2009-04-08 | 지멘스 워터 테크놀로지스 코포레이션 | 막의 개선된 모노퍼술페이트 처리 방법 |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| WO2008103736A1 (en) | 2007-02-22 | 2008-08-28 | Donaldson Company, Inc. | Filter element and method |
| WO2008103821A2 (en) | 2007-02-23 | 2008-08-28 | Donaldson Company, Inc. | Formed filter element |
| US8318028B2 (en) | 2007-04-02 | 2012-11-27 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| KR20130135980A (ko) | 2007-05-29 | 2013-12-11 | 지멘스 인더스트리 인코포레이티드 | 펄스형 공기리프트 펌프를 이용한 막 세정 방법 및 장치 |
| CA2731774A1 (en) | 2008-07-24 | 2010-01-28 | Siemens Water Technologies Corp. | Frame system for membrane filtration modules |
| AU2009282912B2 (en) | 2008-08-20 | 2014-11-27 | Evoqua Water Technologies Llc | Improved membrane system backwash energy efficiency |
| US9885154B2 (en) | 2009-01-28 | 2018-02-06 | Donaldson Company, Inc. | Fibrous media |
| AU2010101488B4 (en) | 2009-06-11 | 2013-05-02 | Evoqua Water Technologies Llc | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
| WO2011079062A1 (en) * | 2009-12-21 | 2011-06-30 | Siemens Industry, Inc. | Charged porous polymeric membranes and their preparation |
| US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
| WO2012040412A1 (en) | 2010-09-24 | 2012-03-29 | Siemens Industry, Inc. | Fluid control manifold for membrane filtration system |
| CA2850522C (en) | 2011-09-30 | 2021-03-16 | Evoqua Water Technologies Llc | Shut-off valve for isolation of hollow fiber membrane filtration module |
| US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
| CN102678399B (zh) * | 2011-12-27 | 2014-02-26 | 浙江省海洋开发研究院 | 发动机空气滤清器堵塞提醒装置 |
| KR102108593B1 (ko) | 2012-06-28 | 2020-05-29 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 포팅 방법 |
| KR20150054918A (ko) | 2012-09-14 | 2015-05-20 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 막을 위한 중합체 블렌드 |
| AU2013324056B2 (en) | 2012-09-26 | 2017-11-16 | Evoqua Water Technologies Llc | Membrane securement device |
| US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
| WO2014052139A1 (en) | 2012-09-27 | 2014-04-03 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| HUE061765T2 (hu) | 2013-10-02 | 2023-08-28 | Rohm & Haas Electronic Mat Singapore Pte Ltd | Berendezés membrán filtrációs modul javítására |
| EP3322511B1 (en) | 2015-07-14 | 2022-09-07 | Rohm & Haas Electronic Materials Singapore Pte. Ltd | Aeration device for filtration system |
| US10876503B2 (en) * | 2017-06-16 | 2020-12-29 | Nick Trask | Vehicle air intake assembly |
| CN111479622B (zh) * | 2017-10-24 | 2022-10-21 | 唐纳森公司 | 具有阻塞指示器的空气滤清器组件 |
| CN109260831B (zh) * | 2018-09-27 | 2023-11-03 | 国网江苏省电力有限公司盐城供电分公司 | 一种配电箱用空气过滤装置 |
| RU2697420C1 (ru) * | 2019-06-14 | 2019-08-14 | Общество с ограниченной ответственностью "АТЛАНТ" | Индикатор засорения газового фильтра |
| US12188438B1 (en) * | 2023-10-30 | 2025-01-07 | Injen Technology Company, Ltd. | Air intake system having a detachable window for viewing the air filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE421043C (de) * | 1925-02-28 | 1925-11-04 | Willy Seck | Gehaeuseanordnung fuer Plattenfedermanometer |
| DE2617972A1 (de) * | 1976-04-24 | 1977-11-10 | Mann & Hummel Filter | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US376103A (en) * | 1888-01-10 | Indicator-dial | ||
| US148673A (en) * | 1874-03-17 | Improvement in registering steam-gages | ||
| GB267098A (en) * | 1926-03-05 | 1927-12-22 | Michelin & Cie | Improvements in pressure gauges especially adapted for use with pneumatic tyres |
| US2605736A (en) * | 1950-08-01 | 1952-08-05 | Taylor Instrument Co | Maximum and minimum registering instrument |
| US2851002A (en) * | 1956-07-25 | 1958-09-09 | Kollsman Instr Corp | Aircraft instrument-dual drum scale |
| US3465707A (en) * | 1968-03-05 | 1969-09-09 | Tsuchiya Seisakusho | Clogging indicator for air cleaners |
| US3807350A (en) * | 1972-10-20 | 1974-04-30 | Steward Warner Corp | Gear band selector tachometer |
| SU470723A2 (ru) * | 1973-05-03 | 1975-05-15 | Предприятие П/Я А-3833 | Индикатор засоренности воздухоочистител |
| DE2346552A1 (de) * | 1973-09-15 | 1975-03-27 | Mann & Hummel Filter | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
| SE394076B (sv) * | 1975-08-29 | 1977-06-06 | Electrolux Ab | Indikatoranordning for dammsugare. |
| US4029041A (en) * | 1976-01-08 | 1977-06-14 | Eduard Matveevich Genshpring | Blockage indicator for internal combustion engine air cleaner element |
| US4196633A (en) * | 1978-05-22 | 1980-04-08 | Dresser Industries, Inc. | Pressure gauge construction |
-
1984
- 1984-08-01 DE DE19843428307 patent/DE3428307A1/de active Granted
-
1985
- 1985-06-27 AR AR85300834A patent/AR242121A1/es active
- 1985-07-09 FR FR8510470A patent/FR2568484B1/fr not_active Expired
- 1985-07-10 ZA ZA855209A patent/ZA855209B/xx unknown
- 1985-07-22 GB GB08518439A patent/GB2164153B/en not_active Expired
- 1985-07-24 BR BR8503512A patent/BR8503512A/pt not_active IP Right Cessation
- 1985-07-30 MX MX206134A patent/MX157720A/es unknown
- 1985-07-31 ES ES545762A patent/ES8700072A1/es not_active Expired
- 1985-08-01 US US06/761,289 patent/US4688511A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE421043C (de) * | 1925-02-28 | 1925-11-04 | Willy Seck | Gehaeuseanordnung fuer Plattenfedermanometer |
| DE2617972A1 (de) * | 1976-04-24 | 1977-11-10 | Mann & Hummel Filter | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3630430C1 (en) * | 1986-09-06 | 1987-10-29 | Knecht Filterwerke Gmbh | Indicator device for the degree of soiling of intake air filters |
| DE19506452A1 (de) * | 1995-02-24 | 1996-08-29 | Mann & Hummel Filter | Anzeigevorrichtung zur Anzeige des Unterdrucks |
| WO1996028236A1 (en) * | 1995-03-15 | 1996-09-19 | Memtec America Corporation | Filtration monitoring and control system |
| US6202475B1 (en) * | 1997-05-30 | 2001-03-20 | Usf Filtration And Separations Group, Inc. | Predicting logarithmic reduction values |
| DE19751942A1 (de) * | 1997-11-24 | 1999-05-27 | Mann & Hummel Filter | Anzeigevorrichtung für den Verschmutzungsgrad eines Filterelements |
| WO2007149445A1 (en) * | 2006-06-16 | 2007-12-27 | Engineered Products Company | Dial-type flow-restriction gauges |
| US7562579B2 (en) | 2006-06-16 | 2009-07-21 | Engineered Products Company | Dial-type flow-restriction gauges |
| US7921720B2 (en) | 2006-06-16 | 2011-04-12 | Engineered Products Company | Dial-type flow-restriction gauges |
Also Published As
| Publication number | Publication date |
|---|---|
| ES545762A0 (es) | 1986-10-16 |
| BR8503512A (pt) | 1986-04-22 |
| GB2164153A (en) | 1986-03-12 |
| MX157720A (es) | 1988-12-12 |
| AR242121A1 (es) | 1993-03-31 |
| GB2164153B (en) | 1987-12-31 |
| US4688511A (en) | 1987-08-25 |
| ES8700072A1 (es) | 1986-10-16 |
| FR2568484B1 (fr) | 1989-07-21 |
| ZA855209B (en) | 1986-02-26 |
| DE3428307C2 (enExample) | 1990-06-07 |
| GB8518439D0 (en) | 1985-08-29 |
| FR2568484A1 (fr) | 1986-02-07 |
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