GB1488199A - Drainage system - Google Patents
Drainage systemInfo
- Publication number
- GB1488199A GB1488199A GB3336675A GB3336675A GB1488199A GB 1488199 A GB1488199 A GB 1488199A GB 3336675 A GB3336675 A GB 3336675A GB 3336675 A GB3336675 A GB 3336675A GB 1488199 A GB1488199 A GB 1488199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- probe
- pump
- aug
- immersed
- switches
- 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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
1488199 Liquid level control PYNFORD Ltd 27 Aug 1976 [11 Aug 1975 18 Aug 1975] 33366/75 and 34232/75 Heading G1H A waste water discharge system comprises a tank 1 and an electric pump 5 controlled by a contact at the end of a downwardly projecting probe 10 in a sheath 13 sealed at the top to form an air lock to keep the upper portion of the probe dry; the pump being switched on when water reaches the end of the probe. The system includes a second sheathed probe 9 in the tank which switches the pump off when the water level 18 falls below it and a probe 14 in a branch 16 of the pump outlet. The probe 10 switches the pump on for a short time and is then turned off unless probe 14 is immersed. Probe 9 may be omitted if the pump is energized for a predetermined period after either probe 10 or 14 is immersed. Sheaths 12, 13, and pipe 16 are of liquid repellant insulating material to assist in maintaining the upper portions of rods 9, 10, 14 dry and preventing short circuits.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3336675A GB1488199A (en) | 1976-08-27 | 1976-08-27 | Drainage system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3336675A GB1488199A (en) | 1976-08-27 | 1976-08-27 | Drainage system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1488199A true GB1488199A (en) | 1977-10-05 |
Family
ID=10351999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3336675A Expired GB1488199A (en) | 1976-08-27 | 1976-08-27 | Drainage system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1488199A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984002401A1 (en) * | 1982-12-17 | 1984-06-21 | Kevyn Barry Moore | Water level monitor and/or alarm system for bilges |
GB2137349A (en) * | 1983-03-28 | 1984-10-03 | Elvio Bernardi | Discharge valve controlled by liquid level sensor |
GB2149112A (en) * | 1983-10-27 | 1985-06-05 | Lucas Ind Plc | Liquid level detector |
GB2166870A (en) * | 1984-07-30 | 1986-05-14 | Dominic N Loiacono | Liquid level detection |
US4849739A (en) * | 1984-07-30 | 1989-07-18 | Ala Inc., A New Jersey Corporation | Liquid detector for air pressure type fire sprinkler system |
EP2874038A1 (en) * | 2013-11-19 | 2015-05-20 | Po-Hui Chen | Automatic drainage device with a level controller |
-
1976
- 1976-08-27 GB GB3336675A patent/GB1488199A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984002401A1 (en) * | 1982-12-17 | 1984-06-21 | Kevyn Barry Moore | Water level monitor and/or alarm system for bilges |
GB2137349A (en) * | 1983-03-28 | 1984-10-03 | Elvio Bernardi | Discharge valve controlled by liquid level sensor |
GB2149112A (en) * | 1983-10-27 | 1985-06-05 | Lucas Ind Plc | Liquid level detector |
GB2166870A (en) * | 1984-07-30 | 1986-05-14 | Dominic N Loiacono | Liquid level detection |
US4849739A (en) * | 1984-07-30 | 1989-07-18 | Ala Inc., A New Jersey Corporation | Liquid detector for air pressure type fire sprinkler system |
GB2166870B (en) * | 1984-07-30 | 1989-07-19 | Dominic N Loiacono | Liquid detector for air pressure type fire sprinkler system |
EP2874038A1 (en) * | 2013-11-19 | 2015-05-20 | Po-Hui Chen | Automatic drainage device with a level controller |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |