GB1416736A - Liquid containers - Google Patents
Liquid containersInfo
- Publication number
- GB1416736A GB1416736A GB1215072A GB1215072A GB1416736A GB 1416736 A GB1416736 A GB 1416736A GB 1215072 A GB1215072 A GB 1215072A GB 1215072 A GB1215072 A GB 1215072A GB 1416736 A GB1416736 A GB 1416736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- thermistor
- carrier
- liquid
- themistor
- 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
-
- 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
- G01F23/24—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 variations of resistance of resistors due to contact with conductor fluid
- G01F23/246—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 variations of resistance of resistors due to contact with conductor fluid thermal devices
- G01F23/247—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 variations of resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
1416736 Measuring liquid level electrically AUTOMOTIVE PRODUCTS Ltd 15 Feb 1973 [15 March 1972] 12150/72 Heading GIN A liquid container incorporating a sensing device for controlling an indicating device provided information as to whether liquid in the container 12 is above or below a predeterminded level comprises a thermistor 13 incorporated in a corner 14 of plastics material mounted in an aperture formed either in the wall of the container or in a closure member (e.g. a filler cap) for an opening in the wall of the container, the carrier having terminals 21 elecrically connected to the thermistor and which are external to the container and that part of the carrier that is in direct contact with the edge of the aperture is formed of the plastic material, the resistance of the thermistor varying according as to its immersion or non-immersion in the liquid. The thermistor is arranged in a circuit with a lamp 26 which since the themistor has negative temperature coefficient of resistivity, is illuminated by increase in current due to increase in temperature of the themistor. A switch 28 when closed short-circuits the thermistor, permitting testing of the lamp. The carrier may be a snap fit in the container by means of a co-operating groove 18 and rib 24 or it may be mounted to the container, where both carrier and container are of thermoplastic material e.g. polythene or polypropylene, by welding. The carrier may be a thermosetting phenolic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1215072A GB1416736A (en) | 1972-03-15 | 1972-03-15 | Liquid containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1215072A GB1416736A (en) | 1972-03-15 | 1972-03-15 | Liquid containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1416736A true GB1416736A (en) | 1975-12-03 |
Family
ID=9999268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1215072A Expired GB1416736A (en) | 1972-03-15 | 1972-03-15 | Liquid containers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1416736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2272289A (en) * | 1992-11-05 | 1994-05-11 | Scott Limited | Liquid supply apparatus |
-
1972
- 1972-03-15 GB GB1215072A patent/GB1416736A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2272289A (en) * | 1992-11-05 | 1994-05-11 | Scott Limited | Liquid supply apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |