GB2142732A - Low water warning device - Google Patents

Low water warning device Download PDF

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Publication number
GB2142732A
GB2142732A GB08317805A GB8317805A GB2142732A GB 2142732 A GB2142732 A GB 2142732A GB 08317805 A GB08317805 A GB 08317805A GB 8317805 A GB8317805 A GB 8317805A GB 2142732 A GB2142732 A GB 2142732A
Authority
GB
United Kingdom
Prior art keywords
water
container
litres
lid
approximately
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.)
Withdrawn
Application number
GB08317805A
Other versions
GB8317805D0 (en
Inventor
Gerald Walter Alfred Tanner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08317805A priority Critical patent/GB2142732A/en
Publication of GB8317805D0 publication Critical patent/GB8317805D0/en
Publication of GB2142732A publication Critical patent/GB2142732A/en
Withdrawn legal-status Critical Current

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
    • G01F23/20—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 measurement of weight, e.g. to determine the level of stored liquefied gas

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

A container for drinking water (e.g. for use in a touring caravan) is mounted on a platform 2 which is pivoted at 3 and supported by a spring 4. When less than approximately five litres of water remains in the container, movement of the platform operates a switch 5 to provide a visual or audible warning. <IMAGE>

Description

SPECIFICATION Low water level warning The invention relates to drinking water in containers used for leisure activities mainly touring caravans.
The problem is of knowing when the drinking water is getting low, as it is usually situated outside the caravan and in a non transparent plastic container to prevent alga forming.
If the water runs out, on most systems the pump can be damaged or the system may have to be re-primed. It can also be very inconvenient.
According to the invention an audible alarm operates when the electric water pump is used and there is approximately five litres of water left for emergency use in the container.
For systems without electric water pumps, a warning light can be used in place of the audible alarm.
An embodiment of the invention is shown in the accompanying schematic drawing and is now described with reference to Fig. 1.
Showing system with electric water pump.
Figure 2 showing system without electric water pump.
The invention consists of a rectangular flat box 1 with lid 2 of a suitable size to stand a water container on. The lid is hinged or pivoted 3 one end and spring loaded 4 open the other end. The spring loading being just able to support approximately five litres of water plus the average weight of a typical water container. A micro switch 5 is fixed at the same end as the springs and set to operate when the springs overcome the weight of approximately five litres of water plus container. Using the caravan power supply as in Fig. 1 powers the audible alarm 7 or as in Fig. 2 powers a warning light 8.
The box 1 when not in use may provide storage space for water container to caravan connection hose and interconnecting cable and plug 6.
1. A warning device which indicates when approximately five litres of drinking water is left for emergency use in most types of portable water containers, used mainly with touring caravans. Comprising of a flat box type platform. The lid being spring loaded to raise in opposition to the weight when the container being placed on the lid has approximately five litres of water left in it. The movement of the lid is used to operate a switch which in turn operates an indicator.
2. A warning device as claimed in Claim 1 where the power for the indicator is switched in parallel with the water pump in the caravan.
3. A warning device as claimed in Claims 1 and 2 in which the indicator is of the audible type.
4. A warning device as claimed in Claim 1 in which the indicator is of the visual type.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Low water level warning The invention relates to drinking water in containers used for leisure activities mainly touring caravans. The problem is of knowing when the drinking water is getting low, as it is usually situated outside the caravan and in a non transparent plastic container to prevent alga forming. If the water runs out, on most systems the pump can be damaged or the system may have to be re-primed. It can also be very inconvenient. According to the invention an audible alarm operates when the electric water pump is used and there is approximately five litres of water left for emergency use in the container. For systems without electric water pumps, a warning light can be used in place of the audible alarm. An embodiment of the invention is shown in the accompanying schematic drawing and is now described with reference to Fig. 1. Showing system with electric water pump. Figure 2 showing system without electric water pump. The invention consists of a rectangular flat box 1 with lid 2 of a suitable size to stand a water container on. The lid is hinged or pivoted 3 one end and spring loaded 4 open the other end. The spring loading being just able to support approximately five litres of water plus the average weight of a typical water container. A micro switch 5 is fixed at the same end as the springs and set to operate when the springs overcome the weight of approximately five litres of water plus container. Using the caravan power supply as in Fig. 1 powers the audible alarm 7 or as in Fig. 2 powers a warning light 8. The box 1 when not in use may provide storage space for water container to caravan connection hose and interconnecting cable and plug 6. CLAIMS
1. A warning device which indicates when approximately five litres of drinking water is left for emergency use in most types of portable water containers, used mainly with touring caravans. Comprising of a flat box type platform. The lid being spring loaded to raise in opposition to the weight when the container being placed on the lid has approximately five litres of water left in it. The movement of the lid is used to operate a switch which in turn operates an indicator.
2. A warning device as claimed in Claim 1 where the power for the indicator is switched in parallel with the water pump in the caravan.
3. A warning device as claimed in Claims 1 and 2 in which the indicator is of the audible type.
4. A warning device as claimed in Claim 1 in which the indicator is of the visual type.
GB08317805A 1983-06-30 1983-06-30 Low water warning device Withdrawn GB2142732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08317805A GB2142732A (en) 1983-06-30 1983-06-30 Low water warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08317805A GB2142732A (en) 1983-06-30 1983-06-30 Low water warning device

Publications (2)

Publication Number Publication Date
GB8317805D0 GB8317805D0 (en) 1983-08-03
GB2142732A true GB2142732A (en) 1985-01-23

Family

ID=10545055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08317805A Withdrawn GB2142732A (en) 1983-06-30 1983-06-30 Low water warning device

Country Status (1)

Country Link
GB (1) GB2142732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737658A1 (en) * 1986-11-18 1988-07-28 Volkswagen Ag Apparatus for measuring the tank content of an operational liquid tank on a motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB464936A (en) * 1935-12-06 1937-04-28 Spensers London Ltd Improvements in and relating to the measurement of the contents of a fluid container
GB1037598A (en) * 1965-03-26 1966-07-27 George Alexander Naylor Pressurised fluid storage containers
GB1196912A (en) * 1966-08-26 1970-07-01 Margaret Brownlie Improvements in the Indication of Liquid Contents of vessels
GB1586761A (en) * 1977-05-23 1981-03-25 Hadley H R Method of and device for weighing drums and the like
GB2080553A (en) * 1980-07-12 1982-02-03 Rubery Owen Group Services Ltd Weighing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB464936A (en) * 1935-12-06 1937-04-28 Spensers London Ltd Improvements in and relating to the measurement of the contents of a fluid container
GB1037598A (en) * 1965-03-26 1966-07-27 George Alexander Naylor Pressurised fluid storage containers
GB1196912A (en) * 1966-08-26 1970-07-01 Margaret Brownlie Improvements in the Indication of Liquid Contents of vessels
GB1586761A (en) * 1977-05-23 1981-03-25 Hadley H R Method of and device for weighing drums and the like
GB2080553A (en) * 1980-07-12 1982-02-03 Rubery Owen Group Services Ltd Weighing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737658A1 (en) * 1986-11-18 1988-07-28 Volkswagen Ag Apparatus for measuring the tank content of an operational liquid tank on a motor vehicle

Also Published As

Publication number Publication date
GB8317805D0 (en) 1983-08-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)