FR2466753B1 - - Google Patents
Info
- Publication number
- FR2466753B1 FR2466753B1 FR8020737A FR8020737A FR2466753B1 FR 2466753 B1 FR2466753 B1 FR 2466753B1 FR 8020737 A FR8020737 A FR 8020737A FR 8020737 A FR8020737 A FR 8020737A FR 2466753 B1 FR2466753 B1 FR 2466753B1
- Authority
- FR
- France
- 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
-
- 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
- G01F23/28—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 by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
- G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
-
- 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
- G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
- G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Secondary Cells (AREA)
- Level Indicators Using A Float (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/079,639 US4240282A (en) | 1979-09-27 | 1979-09-27 | Combined level indicator and hydrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2466753A1 FR2466753A1 (fr) | 1981-04-10 |
| FR2466753B1 true FR2466753B1 (https=) | 1984-05-11 |
Family
ID=22151833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8020737A Granted FR2466753A1 (fr) | 1979-09-27 | 1980-09-26 | Combinaison perfectionnee d'un indicateur de liquide et d'un aerometre |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4240282A (https=) |
| JP (1) | JPS5657916A (https=) |
| BR (1) | BR8006130A (https=) |
| CA (1) | CA1134640A (https=) |
| FR (1) | FR2466753A1 (https=) |
| GB (1) | GB2060885A (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3915475A1 (de) * | 1989-05-11 | 1990-11-15 | Siemens Ag | Sensor fuer ladungsmessung bei akkumulatoren |
| JP2868235B2 (ja) * | 1989-09-01 | 1999-03-10 | 三信工業株式会社 | 船舶推進機の排気構造 |
| US4989453A (en) * | 1989-11-06 | 1991-02-05 | Alan Hiiesalu | Battery condition indicator |
| US5900547A (en) * | 1997-09-12 | 1999-05-04 | Thermoprobe Inc. | Differential level hydrometer |
| US6393910B1 (en) | 2000-01-25 | 2002-05-28 | Illinois Tool Works Inc. | One-piece battery charge indicator cage |
| JP4717230B2 (ja) * | 2001-02-22 | 2011-07-06 | 本田技研工業株式会社 | 燃料タンクにおける燃料満量液面視認装置 |
| US7228737B2 (en) * | 2004-08-06 | 2007-06-12 | Illinois Tool Works Inc | Hydrometer/fluid level sensor |
| US7430907B2 (en) | 2004-08-06 | 2008-10-07 | Illinois Tool Works Inc. | Hydrometer/fluid level sensor |
| US20070240627A1 (en) * | 2006-04-18 | 2007-10-18 | Summer Mark J | Fluid lever indicator protection sleeve |
| EP2064529A4 (en) * | 2006-08-24 | 2010-12-22 | Ducool Ltd | ARRANGEMENT FOR MEASURING THE SPECIFIC DENSITY AND STATE OF A LIQUID |
| CN100546094C (zh) * | 2007-11-08 | 2009-09-30 | 泉州市一鸣交通电器有限公司 | 一种电池电量显色器 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3597973A (en) * | 1969-09-08 | 1971-08-10 | Illinois Tool Works | Combined level indicator and hydrometer |
| US3597972A (en) * | 1969-09-08 | 1971-08-10 | Illinois Tool Works | Combined level indicator and hydrometer |
| US3977908A (en) * | 1972-10-17 | 1976-08-31 | Shin-Kobe Electric Machinery Co., Ltd. | Indicator in use with a lead storage battery for indicating the overdischarge of the same and the lowered level of the electrolyte therein |
| US3893339A (en) * | 1974-03-18 | 1975-07-08 | Illinois Tool Works | Liquid level indicator |
| US3915753A (en) * | 1974-03-18 | 1975-10-28 | Illinois Tool Works | Liquid indicator for a storage battery with a flame barrier vent filter |
| US3954010A (en) * | 1975-04-25 | 1976-05-04 | Illinois Tool Works Inc. | Visual and electronic battery hydrometer |
| US4074025A (en) * | 1976-03-29 | 1978-02-14 | Miyagawa Kasei Industry Co., Ltd. | Indicating device for storage battery |
-
1979
- 1979-09-27 US US06/079,639 patent/US4240282A/en not_active Expired - Lifetime
-
1980
- 1980-09-08 CA CA000359847A patent/CA1134640A/en not_active Expired
- 1980-09-25 BR BR8006130A patent/BR8006130A/pt not_active IP Right Cessation
- 1980-09-26 GB GB8031180A patent/GB2060885A/en not_active Withdrawn
- 1980-09-26 FR FR8020737A patent/FR2466753A1/fr active Granted
- 1980-09-26 JP JP13310880A patent/JPS5657916A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4240282A (en) | 1980-12-23 |
| GB2060885A (en) | 1981-05-07 |
| JPS5657916A (en) | 1981-05-20 |
| CA1134640A (en) | 1982-11-02 |
| BR8006130A (pt) | 1981-04-07 |
| FR2466753A1 (fr) | 1981-04-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |