FR2402864A1 - Dispositif indicateur de pression differentielle de fluide - Google Patents
Dispositif indicateur de pression differentielle de fluideInfo
- Publication number
- FR2402864A1 FR2402864A1 FR7734087A FR7734087A FR2402864A1 FR 2402864 A1 FR2402864 A1 FR 2402864A1 FR 7734087 A FR7734087 A FR 7734087A FR 7734087 A FR7734087 A FR 7734087A FR 2402864 A1 FR2402864 A1 FR 2402864A1
- Authority
- FR
- France
- Prior art keywords
- differential pressure
- indicator device
- pressure indicator
- fluid
- fluid differential
- 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
- 239000012530 fluid Substances 0.000 title abstract 4
- 238000001914 filtration Methods 0.000 abstract 3
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Measuring Fluid Pressure (AREA)
- Filtration Of Liquid (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Dispositif indicateur de pression de fluide différentielle pour un appareillage de filtrage comportant un élément de filtration, une entrée et une sortie, ce dispositif donnant naissance à un signal visible de l'extérieur quand la pression différentielle d'un coté à l'autre de l'élément de filtration dépasse un degré prédéterminé. Le dispositif comprend un piston soumis à un ressort, possédant une extrémité ouverte vers l'entrée du fluide et son autre extrémité ouverte vers la sortie du fluide. Quand la pression différentielle dépasse le degré prédéterminé, le piston se déplace axialement et libère un élément soumis à un ressort et visible de l'extérieur, qui tourne depuis une première jusqu'à une seconde position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/831,385 US4139466A (en) | 1977-09-08 | 1977-09-08 | Differential fluid pressure indicating device |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2402864A1 true FR2402864A1 (fr) | 1979-04-06 |
FR2402864B1 FR2402864B1 (fr) | 1981-12-24 |
Family
ID=25258935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7734087A Granted FR2402864A1 (fr) | 1977-09-08 | 1977-11-14 | Dispositif indicateur de pression differentielle de fluide |
Country Status (8)
Country | Link |
---|---|
US (1) | US4139466A (fr) |
JP (1) | JPS5441784A (fr) |
CA (1) | CA1083893A (fr) |
DE (1) | DE2749689A1 (fr) |
FR (1) | FR2402864A1 (fr) |
GB (1) | GB1545173A (fr) |
IT (1) | IT1113810B (fr) |
SE (1) | SE433004B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2464090A1 (fr) * | 1979-09-04 | 1981-03-06 | Parker Hannifin Corp | Filtre a fluide, et notamment filtre a fluide muni d'un indicateur de pression differentielle |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4378751A (en) * | 1978-05-08 | 1983-04-05 | Siemens-Allis, Inc. | Condition indicating device for a puffer type load break switch |
US4818385A (en) * | 1987-08-31 | 1989-04-04 | Medley Iii Frank W | Filter with high pressure indicator |
US5718822A (en) * | 1995-09-27 | 1998-02-17 | The Metraflex Company | Differential pressure apparatus for detecting accumulation of particulates in a filter |
US6190442B1 (en) * | 1999-08-31 | 2001-02-20 | Tishken Products Co. | Air filter gauge |
EP1479426A1 (fr) * | 2003-05-21 | 2004-11-24 | Levitronix LLC | Filtre et procédé pour l'indication de la condition d'un filtre |
US20050284802A1 (en) * | 2004-06-23 | 2005-12-29 | Jankuski George A | Filtering device with integral filter status indicator |
CN100587436C (zh) * | 2008-05-06 | 2010-02-03 | 中国人民解放军军事医学科学院卫生装备研究所 | 超压与负压防护装置监测与报警系统 |
US10016707B2 (en) | 2015-01-15 | 2018-07-10 | The Metraflex Company | Pipeline strainer |
CA3044708A1 (fr) | 2016-11-23 | 2018-05-31 | Brian M. Wiseman | Detecteur de pression differentielle directionnelle |
US11415594B2 (en) | 2019-05-30 | 2022-08-16 | AirFlow Direction, Inc. | Directional differential pressure detector for indicating potential or actual directional air flow |
US11460481B2 (en) | 2019-05-30 | 2022-10-04 | AirFlow Directions, Inc. | Directional differential pressure detector having a differential pressure set point indicator |
US11423918B2 (en) | 2019-05-30 | 2022-08-23 | AirFlow Direction, Inc. | Directional differential pressure detector |
US11415475B2 (en) | 2019-10-22 | 2022-08-16 | AirFlow Direction, Inc. | Directional differential pressure detector with improved reliability |
WO2023119257A1 (fr) * | 2021-12-24 | 2023-06-29 | Intex Industries Xiamen Co. Ltd. | Structure de détection de contamination de milieu filtrant, dispositif de filtre et filtre à fonction d'avertissement anormal |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2979021A (en) * | 1959-01-06 | 1961-04-11 | Purolator Products Inc | Filter unit |
US3022764A (en) * | 1959-04-21 | 1962-02-27 | Purolator Products Inc | Mechanical signal device |
US3029836A (en) * | 1959-04-20 | 1962-04-17 | Purolator Products Inc | Mechanical signal device |
US3042076A (en) * | 1959-01-27 | 1962-07-03 | Purolator Products Inc | Filter signal device |
US3043262A (en) * | 1959-03-24 | 1962-07-10 | Purolator Products Inc | Magnetic filter signal device |
US3052206A (en) * | 1960-11-29 | 1962-09-04 | Purolator Products Inc | Indicator device |
US3815542A (en) * | 1972-07-27 | 1974-06-11 | Pall Corp | Magnetic pressure indicator |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954751A (en) * | 1958-05-09 | 1960-10-04 | Bendix Corp | Visible filter clogging indicator |
US3028009A (en) * | 1959-12-10 | 1962-04-03 | Purolator Products Inc | Locking device for movable rod |
US3146757A (en) * | 1961-05-31 | 1964-09-01 | Bernard R Heymann | Differential pressure indicator |
US3247824A (en) * | 1964-04-20 | 1966-04-26 | Fire Guard Corp | Pressure indicator |
JPS5319399Y2 (fr) * | 1973-08-10 | 1978-05-23 | ||
US3950248A (en) * | 1974-04-11 | 1976-04-13 | Parker-Hannifin Corporation | Fluid filtering device |
SE394076B (sv) * | 1975-08-29 | 1977-06-06 | Electrolux Ab | Indikatoranordning for dammsugare. |
-
1977
- 1977-09-08 US US05/831,385 patent/US4139466A/en not_active Expired - Lifetime
- 1977-11-01 SE SE7712318A patent/SE433004B/sv not_active IP Right Cessation
- 1977-11-07 GB GB46198/77A patent/GB1545173A/en not_active Expired
- 1977-11-07 DE DE19772749689 patent/DE2749689A1/de not_active Ceased
- 1977-11-10 CA CA290,611A patent/CA1083893A/fr not_active Expired
- 1977-11-14 FR FR7734087A patent/FR2402864A1/fr active Granted
- 1977-12-09 IT IT30527/77A patent/IT1113810B/it active
-
1978
- 1978-01-19 JP JP479478A patent/JPS5441784A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2979021A (en) * | 1959-01-06 | 1961-04-11 | Purolator Products Inc | Filter unit |
US3042076A (en) * | 1959-01-27 | 1962-07-03 | Purolator Products Inc | Filter signal device |
US3043262A (en) * | 1959-03-24 | 1962-07-10 | Purolator Products Inc | Magnetic filter signal device |
US3029836A (en) * | 1959-04-20 | 1962-04-17 | Purolator Products Inc | Mechanical signal device |
US3022764A (en) * | 1959-04-21 | 1962-02-27 | Purolator Products Inc | Mechanical signal device |
US3052206A (en) * | 1960-11-29 | 1962-09-04 | Purolator Products Inc | Indicator device |
US3815542A (en) * | 1972-07-27 | 1974-06-11 | Pall Corp | Magnetic pressure indicator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2464090A1 (fr) * | 1979-09-04 | 1981-03-06 | Parker Hannifin Corp | Filtre a fluide, et notamment filtre a fluide muni d'un indicateur de pression differentielle |
Also Published As
Publication number | Publication date |
---|---|
CA1083893A (fr) | 1980-08-19 |
FR2402864B1 (fr) | 1981-12-24 |
DE2749689A1 (de) | 1979-07-26 |
GB1545173A (en) | 1979-05-02 |
SE433004B (sv) | 1984-04-30 |
JPS5441784A (en) | 1979-04-03 |
US4139466A (en) | 1979-02-13 |
SE7712318L (sv) | 1979-03-09 |
IT1113810B (it) | 1986-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |