CA993278A - Magnetic pressure indicator - Google Patents
Magnetic pressure indicatorInfo
- Publication number
- CA993278A CA993278A CA176,183A CA176183A CA993278A CA 993278 A CA993278 A CA 993278A CA 176183 A CA176183 A CA 176183A CA 993278 A CA993278 A CA 993278A
- Authority
- CA
- Canada
- Prior art keywords
- pressure indicator
- magnetic pressure
- magnetic
- indicator
- pressure
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00275854A US3815542A (en) | 1972-07-27 | 1972-07-27 | Magnetic pressure indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA993278A true CA993278A (en) | 1976-07-20 |
Family
ID=23054089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA176,183A Expired CA993278A (en) | 1972-07-27 | 1973-07-11 | Magnetic pressure indicator |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US3815542A (cs) |
| JP (1) | JPS5331754B2 (cs) |
| AT (1) | AT342892B (cs) |
| AU (1) | AU472376B2 (cs) |
| BE (1) | BE802864A (cs) |
| CA (1) | CA993278A (cs) |
| CH (1) | CH568557A5 (cs) |
| DE (1) | DE2337179C3 (cs) |
| DK (1) | DK145766C (cs) |
| FI (1) | FI60077C (cs) |
| FR (1) | FR2194964B1 (cs) |
| GB (1) | GB1443956A (cs) |
| IL (1) | IL42818A (cs) |
| IT (1) | IT989980B (cs) |
| NL (1) | NL168938C (cs) |
| NO (1) | NO139936C (cs) |
| SE (1) | SE393456B (cs) |
| ZA (1) | ZA735020B (cs) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139466A (en) * | 1977-09-08 | 1979-02-13 | Rosaen Nils O | Differential fluid pressure indicating device |
| US4172971A (en) * | 1978-10-30 | 1979-10-30 | Pall Corporation | Magnetic pressure indicator with thermal lockout |
| US4216672A (en) * | 1979-01-29 | 1980-08-12 | General Electric Company | Apparatus for detecting and indicating the occurrence of a gas turbine engine compressor stall |
| US4272368A (en) * | 1979-09-04 | 1981-06-09 | Parker-Hannifin Corporation | Fluid filter and indicator |
| DE3202571A1 (de) * | 1982-01-27 | 1983-08-11 | Hans Günther 4330 Oberhausen Brinckmann | Vorrichtung zum ueberwachen des druckes und/oder der geschwindigkeit von fluessigen oder gasfoermige medien in leitungssytemen, insbesondere des druckes in schmiermittelleitungen |
| AT387093B (de) * | 1983-08-16 | 1988-11-25 | Enfo Grundlagen Forschungs Ag | Vorrichtung zum anzeigen von druecken oder druckdifferenzen |
| US4651670A (en) * | 1985-09-27 | 1987-03-24 | Pall Corporation | Pressure indicating device |
| AT392158B (de) * | 1986-09-09 | 1991-02-11 | Voest Alpine Ag | Einrichtung zum ueberwachen des zustandes von hydraulik-, schmier- oder kuehlfluessigkeiten |
| GB2207507A (en) * | 1987-07-24 | 1989-02-01 | Pall Europ | Differential pressure sensor |
| US5279251A (en) * | 1992-12-16 | 1994-01-18 | Tdw Delaware, Inc. | Bidirectional pipeline pig signaling device |
| DE29500362U1 (de) * | 1995-01-11 | 1995-02-23 | ELB-Füllstandsgeräte Bundschuh GmbH + Co, 64625 Bensheim | Bistabile Schalteranordnung |
| GB2297161B (en) * | 1995-01-23 | 1998-09-23 | Pall Corp | Differential pressure indicators |
| GB2297620B (en) * | 1995-02-06 | 1998-10-07 | Pall Corp | Filter assemblies comprising differential pressure indicators |
| US5702592A (en) * | 1995-10-20 | 1997-12-30 | Western Filter Corporation | Filter monitoring device which monitors differential pressure and temperature |
| US7649433B2 (en) * | 2006-12-04 | 2010-01-19 | Abb Technology Ag | Circuit breaker with magnetically-coupled trip indicator |
| BRPI0900683A2 (pt) * | 2009-03-17 | 2010-12-14 | Aselco Indestria Com Imp Acco E Exportacco De Instr Ltda | dispositivo de detecÇço e de sinalizaÇço de passagem de pig ou esfera e conjunto de detecÇço e sinalizaÇço de passagem de pig ou esfera |
| EP2973468B1 (en) | 2013-03-15 | 2019-05-22 | Wiseman, Brian, M. | Directional differential pressure detector |
| EP4016089A1 (en) | 2016-11-23 | 2022-06-22 | Wiseman, Brian, M. | Directional differential pressure detector |
| WO2020243512A1 (en) * | 2019-05-30 | 2020-12-03 | AirFlow Direction, Inc. | Directional differential pressure detector |
| US11423918B2 (en) | 2019-05-30 | 2022-08-23 | AirFlow Direction, Inc. | Directional differential pressure detector |
| US11460481B2 (en) * | 2019-05-30 | 2022-10-04 | AirFlow Directions, Inc. | Directional differential pressure detector having a differential pressure set point indicator |
| US11415594B2 (en) | 2019-05-30 | 2022-08-16 | AirFlow Direction, Inc. | Directional differential pressure detector for indicating potential or actual directional air flow |
| WO2021081255A1 (en) | 2019-10-22 | 2021-04-29 | AirFlow Direction, Inc. | Directional differential pressure detector |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2574866A (en) * | 1947-02-25 | 1951-11-13 | Henry W Fahrlander | Magnetic flow gauge |
| GB891246A (en) * | 1958-06-17 | 1962-03-14 | Pall Corp | Magnetic pressure indicator |
| US3140690A (en) * | 1963-12-04 | 1964-07-14 | Pall Corp | Magnetic pressure indicator |
| US2942572A (en) * | 1958-06-17 | 1960-06-28 | Pall Corp | Magnetic pressure indicator |
| US3077176A (en) * | 1961-04-06 | 1963-02-12 | Pall Corp | Magnetic pressure-responsive devices |
| US3154049A (en) * | 1962-02-19 | 1964-10-27 | Screen Products Inc | Magnetic pressure indicator |
| US3212471A (en) * | 1964-04-03 | 1965-10-19 | Purolator Products Inc | Differential pressure indicator |
| US3429291A (en) * | 1965-02-16 | 1969-02-25 | Leslie J Hoffman | Differential-pressure responsive indicator |
| BE755259A (fr) * | 1969-11-17 | 1971-02-01 | Honeywell Inc | Voyant a deux positions pour panneau indicateur |
-
1972
- 1972-07-27 US US00275854A patent/US3815542A/en not_active Expired - Lifetime
-
1973
- 1973-07-11 CA CA176,183A patent/CA993278A/en not_active Expired
- 1973-07-11 NO NO2843/73A patent/NO139936C/no unknown
- 1973-07-17 GB GB3406173A patent/GB1443956A/en not_active Expired
- 1973-07-21 DE DE2337179A patent/DE2337179C3/de not_active Expired
- 1973-07-23 IT IT51607/73A patent/IT989980B/it active
- 1973-07-23 CH CH1074973A patent/CH568557A5/xx not_active IP Right Cessation
- 1973-07-23 AU AU58381/73A patent/AU472376B2/en not_active Expired
- 1973-07-24 ZA ZA735020A patent/ZA735020B/xx unknown
- 1973-07-24 SE SE7310270A patent/SE393456B/xx unknown
- 1973-07-25 IL IL42818A patent/IL42818A/en unknown
- 1973-07-25 FI FI2343/73A patent/FI60077C/fi active
- 1973-07-26 DK DK413573A patent/DK145766C/da not_active IP Right Cessation
- 1973-07-26 FR FR7327478A patent/FR2194964B1/fr not_active Expired
- 1973-07-26 AT AT658173A patent/AT342892B/de not_active IP Right Cessation
- 1973-07-27 JP JP8478673A patent/JPS5331754B2/ja not_active Expired
- 1973-07-27 NL NLAANVRAGE7310473,A patent/NL168938C/xx not_active IP Right Cessation
- 1973-07-27 BE BE133925A patent/BE802864A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI60077B (fi) | 1981-07-31 |
| AU472376B2 (en) | 1976-05-20 |
| US3815542A (en) | 1974-06-11 |
| FR2194964B1 (cs) | 1976-09-17 |
| NL168938C (nl) | 1982-05-17 |
| DE2337179C3 (de) | 1978-05-24 |
| DK145766B (da) | 1983-02-21 |
| NO139936B (no) | 1979-02-26 |
| BE802864A (fr) | 1974-01-28 |
| NO139936C (no) | 1979-06-06 |
| NL168938B (nl) | 1981-12-16 |
| DE2337179B2 (de) | 1977-10-13 |
| JPS49133074A (cs) | 1974-12-20 |
| IT989980B (it) | 1975-06-10 |
| DK145766C (da) | 1983-08-08 |
| CH568557A5 (cs) | 1975-10-31 |
| IL42818A0 (en) | 1973-10-25 |
| GB1443956A (en) | 1976-07-28 |
| DE2337179A1 (de) | 1974-02-07 |
| FR2194964A1 (cs) | 1974-03-01 |
| IL42818A (en) | 1976-07-30 |
| NL7310473A (cs) | 1974-01-29 |
| AT342892B (de) | 1978-04-25 |
| ATA658173A (de) | 1977-08-15 |
| SE393456B (sv) | 1977-05-09 |
| ZA735020B (en) | 1974-06-26 |
| FI60077C (fi) | 1981-11-10 |
| JPS5331754B2 (cs) | 1978-09-04 |
| AU5838173A (en) | 1975-01-23 |
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