GB1076268A - Temperature and liquid level sensor - Google Patents
Temperature and liquid level sensorInfo
- Publication number
- GB1076268A GB1076268A GB13025/66A GB1302566A GB1076268A GB 1076268 A GB1076268 A GB 1076268A GB 13025/66 A GB13025/66 A GB 13025/66A GB 1302566 A GB1302566 A GB 1302566A GB 1076268 A GB1076268 A GB 1076268A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- liquid
- liquid level
- level sensor
- mercury
- 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
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
- H01H35/183—Switches operated by change of liquid level or of liquid density, e.g. float switch making use of a thermal switch
-
- 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
- G01F23/248—Constructional details; Mounting of probes
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)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Emergency Alarm Devices (AREA)
- Thermally Actuated Switches (AREA)
Abstract
1,076,268. Mercury switches. VAPOR CORPORATION. March 24, 1966 [Aug. 2, 1965], No. 13025/66. Heading H2B. Excessive temperature, at low level, of a liquid is sensed by a mercury contact thermometer 20 having contacts 28, 30 which are connected when the mercury expands. A heater coil 42 normally maintains a certain temperature at which the contacts are open, but the absence of liquid around the switch causes the switch to close because the heater cannot then dissipate some of its output into the liquid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US476341A US3329787A (en) | 1965-08-02 | 1965-08-02 | Temperature and level sensor with heater and heat transfer means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1076268A true GB1076268A (en) | 1967-07-19 |
Family
ID=23891457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13025/66A Expired GB1076268A (en) | 1965-08-02 | 1966-03-24 | Temperature and liquid level sensor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3329787A (en) |
| DE (1) | DE1523425A1 (en) |
| GB (1) | GB1076268A (en) |
| SE (1) | SE309686B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859645A (en) * | 1973-06-04 | 1975-01-07 | Gte Sylvania Inc | Temperature compensated fluid level sensor |
| EP0474905A1 (en) * | 1990-09-13 | 1992-03-18 | VDO Adolf Schindling AG | Level switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1560119A (en) * | 1921-09-12 | 1925-11-03 | Cutler Hammer Mfg Co | Thermally-operated circuit controller |
| US2158146A (en) * | 1937-09-20 | 1939-05-16 | Vapor Car Heating Co Inc | Thermostat |
| US2619566A (en) * | 1949-08-25 | 1952-11-25 | Charles F Mahoney | Actuating apparatus responsive to change in liquid level |
| BE570153A (en) * | 1957-08-09 |
-
1965
- 1965-08-02 US US476341A patent/US3329787A/en not_active Expired - Lifetime
-
1966
- 1966-03-24 GB GB13025/66A patent/GB1076268A/en not_active Expired
- 1966-06-23 SE SE8624/66A patent/SE309686B/xx unknown
- 1966-08-02 DE DE19661523425 patent/DE1523425A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1523425A1 (en) | 1969-02-20 |
| SE309686B (en) | 1969-03-31 |
| US3329787A (en) | 1967-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1026754A (en) | Thermally responsive electrical switch | |
| GB1076268A (en) | Temperature and liquid level sensor | |
| GB1312399A (en) | Thermo-responsive switches | |
| GB1045516A (en) | Temperature responsive electric switch | |
| GB1227806A (en) | ||
| GB1172386A (en) | A Thermostatic Device, Sensitive to Two Temperatures | |
| GB1498828A (en) | Electrical switch devices | |
| GB1107852A (en) | A sensing element or the like for indicating liquid levels | |
| GB1183390A (en) | Thermostatic Control Device | |
| DK103678C (en) | Temperature sensitive contact mechanism. | |
| GB1022301A (en) | A temperature-responsive circuit-controlling instrument | |
| GB699915A (en) | Improvements in or relating to electric immersion heaters | |
| GB1019871A (en) | Thermally responsive electrical control device | |
| GB934556A (en) | Improvements in or relating to temperature-responsive devices | |
| GB965114A (en) | Improvements in or relating to starting and operating circuits for high pressure mercury vapour lamps | |
| GB960865A (en) | Improvements in or relating to time and pressure or temperature sensitive electric switches | |
| GB1133614A (en) | Improvements in or relating to thermo-electric switches | |
| ES250751A1 (en) | Improvements in or relating to snap-action thermally-responsive electric switches | |
| GB954233A (en) | Improvements in or relating to thermally responsive electric switch units | |
| ES228097A3 (en) | Temperature sensitive temperature antideflagrating indicator, especially suitable for electrical signaling of fire. (Machine-translation by Google Translate, not legally binding) | |
| CA606852A (en) | Temperature responsive spring actuated switch for electrical heating devices | |
| CA623586A (en) | Bimetallic thermostatic switch | |
| GB973477A (en) | Improvements in or relating to electric switches controlled by heat responsive means | |
| GB940043A (en) | Electric switch | |
| GB510105A (en) | Improvements in, and connected with, automatic switches or circuit breakers |