GB2300403A - A valve to prevent the illicit dilution of beer in kegs - Google Patents
A valve to prevent the illicit dilution of beer in kegs Download PDFInfo
- Publication number
- GB2300403A GB2300403A GB9605616A GB9605616A GB2300403A GB 2300403 A GB2300403 A GB 2300403A GB 9605616 A GB9605616 A GB 9605616A GB 9605616 A GB9605616 A GB 9605616A GB 2300403 A GB2300403 A GB 2300403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- valve member
- gas
- beer
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D49/00—Arrangements or devices for preventing refilling of containers
- B65D49/02—One-way valves
Abstract
A valve to prevent beer kegs from being filled with water through their pressurised gas inlet comprises a body 4, a valve member 1 captively mounted in a chamber inside the body, and gas inlet and outlet ports 5, 6 communicating with the chamber. The valve member 1 comprises a flexible diaphragm 2, which deforms according to the prevailing pressure inside the chamber. Under high gas pressure, the valve ember will sink so that gas can pass between the inlet and outlet ports 5, 6. The valve member 1 is arranged to float and close the gas outlet port 6 when the pressure inside the chamber is released and water is added through the gas inlet port 5.
Description
VALVE
This invention relates to a valve, and more particularly to a valve for fitting to the pressurised gas inlet of a beer keg.
It is possible for fraudsters to add water to beer by injecting it into a beer keg through its pressured gas inlet.
I have now devised a valve which can be used to prevent water from being injected into beer kegs in this way.
In accordance with this invention there is provided a valve comprising a body, a passageway for pressurised gas extending through the body and communicating with a valve chamber, and a floatable valve member mounted inside the chamber, the valve member comprising a flexible wall which is arranged to deform according to the prevailing pressure inside the chamber, the valve member being arranged to float and close the passageway when the pressure in the chamber falls below a predotermineS limit.
If a person attempts to add water into the barrel, then he must first release the pressure inside the barrel, thereby causing the displacement of the valve member to increase. Once the chamber fills with water the valve member will rise, owing to its increased displacement, and block the passageway, so that no water can flow through the valve. It will be appreciated that the valve member operates according to the same principle as a so-called cartesian diver.
An embodiment of this invention will now be described by way of example only and with reference to the accompanying drawings, in which:
FIGURE 1 is a sectional view through a valve in accordance with this invention, under high pressure conditions FIGURE 2 is a sectional view through a valve member of the valve of Figure 1, under high pressure conditions;
FIGURE 3 is a sectional view through the valve of
Figure 1, under low pressure conditions; and
FIGURE 4 is a sectional view through the valve member of the valve of Figure 3 under low pressure conditions.
Referring to Figure 1 of the drawings, there is shown a valve comprising a cylindrical body 4 and a valve member 1 captively mounted in a chamber inside the body. Gas inlet and outlet ports 5, 6, formed in the side wall and end wall respectively of the body 4, communicate with the valve chamber.
Referring to Figure 2, the valve member 1 comprises a hollow circular-section body 10 which is sealed by an elastomeric diaphragm 2.
Referring also to Figures 3 and 4 of the drawings, in use the valve is mounted inside a beer keg and the pressurised gas inlet to the keg is connected to the inlet port 5 of the valve.
Normally the inside of the keg is pressured, either as a result of gases which have escaped from the beer, or as a result of the keg being connected to a pressurised gas container. The pressure causes the diaphragm 2 on the valve member to deform into the body, thereby reducing the displacement of the valve member, such that it sinks in any liquid that may be in the chamber. Gas is thus able to pass through the chamber from the gas inlet 5 to the outlet 6.
In order to fill the keg with water through the gas inlet into the keg, the pressure inside the keg has to be released thereby causing the diaphragm 2 on the valve member to deform outwardly. Thus, as soon as the valve chamber fills with water, the valve member will float, owing to its increased displacement, and block the gas outlet 6, so that no more water can be injected into the keg.
Claims (2)
1) A valve comprising a body, a passageway for pressurised gas extending through the body and communicating with a valve chamber, and a floatable valve member mounted inside the chamber, the valve member comprising a flexible wall which is arranged to deform according to the prevailing pressure inside the chamber, the valve member being arranged to float and close the passageway when the pressure in the chamber falls below a predetermined limit.
2) A valve substantially as herein described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9605616A GB2300403B (en) | 1995-04-10 | 1996-03-18 | Valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9507436.5A GB9507436D0 (en) | 1995-04-10 | 1995-04-10 | Key plug |
| GB9605616A GB2300403B (en) | 1995-04-10 | 1996-03-18 | Valve |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9605616D0 GB9605616D0 (en) | 1996-05-22 |
| GB2300403A true GB2300403A (en) | 1996-11-06 |
| GB2300403B GB2300403B (en) | 1998-09-09 |
Family
ID=26306854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9605616A Expired - Fee Related GB2300403B (en) | 1995-04-10 | 1996-03-18 | Valve |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2300403B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2079898A (en) * | 1980-07-11 | 1982-01-27 | Apv Co Ltd | Fluid flow control valve |
| GB2270361A (en) * | 1992-09-08 | 1994-03-09 | Cambrian Plastics Ltd | Valve float with sealing hull and weighted keel |
-
1996
- 1996-03-18 GB GB9605616A patent/GB2300403B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2079898A (en) * | 1980-07-11 | 1982-01-27 | Apv Co Ltd | Fluid flow control valve |
| GB2270361A (en) * | 1992-09-08 | 1994-03-09 | Cambrian Plastics Ltd | Valve float with sealing hull and weighted keel |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2300403B (en) | 1998-09-09 |
| GB9605616D0 (en) | 1996-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4776952A (en) | Regulated control valve assembly for a water purification system | |
| US5755425A (en) | Fitting for flexible fuel bladder | |
| CA2086089A1 (en) | A method and device for producing compressed air and a wataer pumping device using the compressed air | |
| CA1142426A (en) | Accumulator with preclosing preventer | |
| KR930003056B1 (en) | Water hammer arrestor | |
| WO2005036047A3 (en) | Cryogenic vessel with an ullage space venturi assembly | |
| US4265274A (en) | Pulsation dampener for low output systems | |
| CA2290668A1 (en) | Differential valve for a sub-sea flexible pipe | |
| US4405000A (en) | Automatic shutoff valve | |
| GB2300403A (en) | A valve to prevent the illicit dilution of beer in kegs | |
| EP0272906A3 (en) | Improvements in and relating to taps for pressurised casks and bottles | |
| US5520208A (en) | Resilient seal for a liquid-gas accumulator | |
| KR830006610A (en) | Relief valve with new seal | |
| US20070215623A1 (en) | Marine fuel tank vent valve | |
| US20050121075A1 (en) | Marine fuel tank vent valve | |
| US6871671B2 (en) | Hydroaccumulator | |
| JP4167204B2 (en) | Fluid coupling and integrated unit integrated unit | |
| ES2074963A2 (en) | Improvements to silent or quick stopcocks for filling tanks with odorless fluids | |
| US4548232A (en) | Valve assembly | |
| WO1983002991A1 (en) | A conduit-break valve for a pressure conduit or hose with a surrounding protective conduit or hose | |
| KR20020090789A (en) | A preventive apparatus for water hammer | |
| RU2110004C1 (en) | Shut-off device | |
| JP2811566B2 (en) | Water hammer prevention piping | |
| US6129521A (en) | Safety valve apparatus for air pressure operable diaphragm pump | |
| KR20020001047A (en) | Water hammer arresters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020318 |