JPS4960990A - - Google Patents
Info
- Publication number
- JPS4960990A JPS4960990A JP47103410A JP10341072A JPS4960990A JP S4960990 A JPS4960990 A JP S4960990A JP 47103410 A JP47103410 A JP 47103410A JP 10341072 A JP10341072 A JP 10341072A JP S4960990 A JPS4960990 A JP S4960990A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- 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
- H01H36/0006—Permanent magnet actuating reed switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/223—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water using a melting or dissolving material as a part of alarm-means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
- G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/42—Switches operated by change of humidity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- External Artificial Organs (AREA)
- Examining Or Testing Airtightness (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47103410A JPS4960990A (ja) | 1972-10-14 | 1972-10-14 | |
IT2201173A IT981593B (it) | 1972-04-01 | 1973-03-22 | Elemento rivelatore di liquidi |
GB1413473A GB1415223A (en) | 1972-10-14 | 1973-03-23 | Liquid detector |
US346426A US3874223A (en) | 1972-10-14 | 1973-03-30 | Liquid detector |
FR7311545A FR2178950B1 (ja) | 1972-04-01 | 1973-03-30 | |
DE19732365435 DE2365435C3 (de) | 1972-04-01 | 1973-03-31 | Flüssigkeitsmeßgeber |
DE19732316284 DE2316284C3 (de) | 1972-04-01 | 1973-03-31 | Flüssigkeitsmeßgeber (Japan) |
DE19732365434 DE2365434C3 (de) | 1972-04-01 | 1973-03-31 | Flüssigkeitsmeßgeber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47103410A JPS4960990A (ja) | 1972-10-14 | 1972-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4960990A true JPS4960990A (ja) | 1974-06-13 |
Family
ID=14353269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP47103410A Pending JPS4960990A (ja) | 1972-04-01 | 1972-10-14 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3874223A (ja) |
JP (1) | JPS4960990A (ja) |
GB (1) | GB1415223A (ja) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50151684U (ja) * | 1974-05-31 | 1975-12-17 | ||
JPS5168582U (ja) * | 1974-11-26 | 1976-05-31 | ||
JPS51128597U (ja) * | 1975-04-14 | 1976-10-18 | ||
JPS51123194A (en) * | 1975-04-18 | 1976-10-27 | Furukawa Electric Co Ltd:The | Liquid leak detection cakle |
JPS51128585A (en) * | 1975-04-18 | 1976-11-09 | Furukawa Electric Co Ltd:The | Liquid leakage detector cable |
JPS528883A (en) * | 1975-07-11 | 1977-01-24 | Furukawa Electric Co Ltd:The | Liquid leakage detector cable |
JPS5291488A (en) * | 1976-01-28 | 1977-08-01 | Akio Masuda | Liquid detector |
JPS52155081U (ja) * | 1976-05-19 | 1977-11-25 | ||
JPS61153538A (ja) * | 1984-07-20 | 1986-07-12 | ダブリユ− エル ゴア アンド コンパニ− ゲゼルシヤフト ミツト ベシユランクテル ハフテウング | 地下水の油汚染検知装置 |
JPS6357547U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357545U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357549U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357544U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357548U (ja) * | 1986-09-30 | 1988-04-16 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946625A (en) * | 1973-05-11 | 1976-03-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Liquid detector |
US4021144A (en) * | 1975-09-17 | 1977-05-03 | Elepon Kabushiki Kaisha | Submersible pump with float switch |
JPS59117924U (ja) * | 1983-01-28 | 1984-08-09 | 株式会社潤工社 | 浮遊検出装置 |
CA1258508A (en) * | 1986-03-31 | 1989-08-15 | David N. Kempf | Hydrocarbon probe and method of installation |
US4728882A (en) * | 1986-04-01 | 1988-03-01 | The Johns Hopkins University | Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium |
US5723835A (en) * | 1995-03-29 | 1998-03-03 | Gilmore; Glendell N. | Composite reed switch-bracket |
US5850175A (en) * | 1997-02-19 | 1998-12-15 | Yeilding; Hollis | Water level detector |
GB9817667D0 (en) * | 1998-08-13 | 1998-10-07 | Mckenna Malachi | Pot plant watering system |
US6340243B1 (en) * | 1998-12-03 | 2002-01-22 | Fluid Components Intl | Liquid/gas phase detector system |
AU2001255749A1 (en) * | 2000-05-01 | 2001-11-12 | Ricardo Canales | Encapsulated float and method for making same |
US7095330B2 (en) * | 2002-06-27 | 2006-08-22 | Standex International Corporation | Disposable liquid level sensor having a virtual ring |
US7523645B2 (en) * | 2005-06-30 | 2009-04-28 | Gammon Technical Products, Inc. | Water detector probe |
US7525444B2 (en) * | 2006-02-17 | 2009-04-28 | Perma-Pipe, Inc. | Sensor for detecting hydrocarbons |
US7739902B2 (en) * | 2008-02-28 | 2010-06-22 | Texas Instruments Incorporated | Portable solution detector for identifying chemical solutions including from chemical spills |
US8410948B2 (en) * | 2008-05-12 | 2013-04-02 | John Vander Horst | Recreational vehicle holding tank sensor probe |
US9773629B1 (en) * | 2016-11-09 | 2017-09-26 | Finetek Co., Ltd. | Magnetic sensing switch |
CN116754752B (zh) * | 2023-06-20 | 2023-12-15 | 江苏仕能工业技术有限公司 | 一种环保型多功能矿浆智能检测灰分仪 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228022A (en) * | 1975-08-28 | 1977-03-02 | Kubota Ltd | Sleeve valve |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US479482A (en) * | 1892-07-26 | High and low water alarm | ||
US2004421A (en) * | 1930-10-04 | 1935-06-11 | Anderson Co | Indicating apparatus |
US2161441A (en) * | 1936-07-27 | 1939-06-06 | Theodore W Vickers | Warning signal for braking systems |
US2320720A (en) * | 1941-07-19 | 1943-06-01 | Blaw Knox Co | Device responsive to changes in density of liquids |
US2634608A (en) * | 1947-10-24 | 1953-04-14 | A P Sorber | Liquid level gauge |
US3155792A (en) * | 1962-08-07 | 1964-11-03 | Gen Electric | Magnetic reed switch device |
US3152572A (en) * | 1963-02-12 | 1964-10-13 | Jr Henry W Allhoff | Leak indicator |
NO129857B (ja) * | 1964-07-10 | 1974-06-04 | Mitsubishi Heavy Ind Ltd | |
US3326042A (en) * | 1964-12-30 | 1967-06-20 | John D Ross | Ultrasonic liquid level indicator |
AT254781B (de) * | 1965-08-31 | 1967-06-12 | Hectronic Ag | Einrichtung zum Feststellen der Anwesenheit einer bestimmten Flüssigkeit, insbesondere an einem der Beobachtung entzogenen Ort |
US3415268A (en) * | 1966-10-03 | 1968-12-10 | Bourns Inc | Viscous liquid level control system |
US3721898A (en) * | 1968-12-04 | 1973-03-20 | P Dragoumis | Apparatus for detecting leakage from or rupture of pipes and other vessels containing fluid under pressure |
US3603952A (en) * | 1969-05-12 | 1971-09-07 | Millard F Smith | Spill sensors |
US3675614A (en) * | 1970-11-06 | 1972-07-11 | John T Ward | Fluid level alarm device for tanks and the like to minimize spills of oil and other environmental pollutants |
US3719936A (en) * | 1971-06-01 | 1973-03-06 | Durham Ass Inc | Oil spillage detection system |
US3721970A (en) * | 1971-10-06 | 1973-03-20 | Atomic Energy Commission | Alkali metal leak detector |
US3733594A (en) * | 1972-03-13 | 1973-05-15 | G Orth | Alarm apparatus for detecting and indicating oil slicks |
-
1972
- 1972-10-14 JP JP47103410A patent/JPS4960990A/ja active Pending
-
1973
- 1973-03-23 GB GB1413473A patent/GB1415223A/en not_active Expired
- 1973-03-30 US US346426A patent/US3874223A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228022A (en) * | 1975-08-28 | 1977-03-02 | Kubota Ltd | Sleeve valve |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5525708Y2 (ja) * | 1974-05-31 | 1980-06-20 | ||
JPS50151684U (ja) * | 1974-05-31 | 1975-12-17 | ||
JPS5168582U (ja) * | 1974-11-26 | 1976-05-31 | ||
JPS51128597U (ja) * | 1975-04-14 | 1976-10-18 | ||
JPS51123194A (en) * | 1975-04-18 | 1976-10-27 | Furukawa Electric Co Ltd:The | Liquid leak detection cakle |
JPS51128585A (en) * | 1975-04-18 | 1976-11-09 | Furukawa Electric Co Ltd:The | Liquid leakage detector cable |
JPS528883A (en) * | 1975-07-11 | 1977-01-24 | Furukawa Electric Co Ltd:The | Liquid leakage detector cable |
JPS5291488A (en) * | 1976-01-28 | 1977-08-01 | Akio Masuda | Liquid detector |
JPS52155081U (ja) * | 1976-05-19 | 1977-11-25 | ||
JPS61153538A (ja) * | 1984-07-20 | 1986-07-12 | ダブリユ− エル ゴア アンド コンパニ− ゲゼルシヤフト ミツト ベシユランクテル ハフテウング | 地下水の油汚染検知装置 |
JPS6357547U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357545U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357549U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357544U (ja) * | 1986-09-30 | 1988-04-16 | ||
JPS6357548U (ja) * | 1986-09-30 | 1988-04-16 |
Also Published As
Publication number | Publication date |
---|---|
GB1415223A (en) | 1975-11-26 |
US3874223A (en) | 1975-04-01 |