GB2290279A - Rigid walled container with liquid outlet and air inlet - Google Patents
Rigid walled container with liquid outlet and air inlet Download PDFInfo
- Publication number
- GB2290279A GB2290279A GB9411677A GB9411677A GB2290279A GB 2290279 A GB2290279 A GB 2290279A GB 9411677 A GB9411677 A GB 9411677A GB 9411677 A GB9411677 A GB 9411677A GB 2290279 A GB2290279 A GB 2290279A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- liquid
- air inlet
- chamber
- air
- 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- Withdrawn
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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/245—Internal membrane, floating cover or the like isolating the contents from the ambient atmosphere
Abstract
A container (1) for liquids has a rigid walled portion (2) defining a chamber (3) for liquid (4) to be contained therein in direct contact with the rigid walled portion, a liquid outlet (5) from the chamber (3) to the exterior of the container (1) and a separate air inlet (6) to an inflatable air bag (7). The air bag has its interior open to the exterior of the container (1) only via the air inlet (6), which is permanently open to the interior of the air bag (7). Liquid flowing through the liquid outlet (5) under gravitational force is replaced by air entering the air bag (7). As this inflow of air does not interfere with the outflow of liquid, an even liquid outflow can be obtained. <IMAGE>
Description
CONTAINERS
This invention relates to containers and is in particular concerned with a rigid or substantially rigid walled container for liquids.
When a rigid or substantially rigid walled container is tipped to allow liquid therein to empty therefrom under gravitational force the problem arises that it is difficult to obtain an even flow of liquid from the container due to the air which enters the container, through the liquid outlet, to replace the liquid emptying from the container.
According to the present invention there is provided a container for liquids having a rigid or substantially rigid walled portion defining a chamber for liquid to be contained therein in direct contact with the rigid or substantially rigid walled portion, the container having a liquid outlet from the chamber to the exterior of the container, and an air inlet, separate from the liquid outlet, to an inflatable air reservoir provided in the chamber, this air reservoir being closed to the interior of the chamber and having its interior open to the exterior of the container only via the air inlet. When the liquid outlet of this container is opened to allow liquid to flow from the chamber under gravitational force, air to replace the liquid emptying from the chamber enters the inflatable air reservoir, via the air inlet thereto, to inflate the reservoir.Thus, within the chamber as a whole, the emptying liquid is replaced by air but the inflow of air to achieve this is via the air inlet, which is separate from the liquid outlet, and so the inflowing air does not interfere with the outflow of liquid and an even liquid outflow can be obtained.
This effect is achieved without providing a valve arrangement for the air inlet that has to be closed during transportation of the container full of liquid, and that has to be opened when it is desired to dispense liquid from the container.
It is inconvenient to have to operate a valve arrangement and there is also a danger, particularly if the container is one that is mobile in use, that movement of the contained liquid will lead to spillage of liquid from the air inlet. In the present container the contained liquid is kept isolated from the air inlet by the inflatable air reservoir so the contained liquid cannot pass from the container via the air inlet. A form of one-way valve arrangement could be provided to allow air to enter but to prevent outflow of contained liquid but a further problem with any form of valve arrangement contactable by the contained liquid is that the valve arrangement may become contaminated by its contact with the contained liquid and as a result cease to function correctly.
Additionally, in the present container, a substantial part of the contained liquid is contained directly by the rigid or substantially rigid walled portion of the container and this is advantageous, particularly if the container is mobile in use.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawing in which the single Figure is a somewhat schematic sectional side view of a container for liquids.
The container 1 shown in the Figure has a rigid or substantially rigid wall portion 2 defining a chamber 3 for liquid 4 to be contained therein in direct contact with the wall portion 2. The container 1 has a liquid outlet 5 from the chamber 3 to the exterior of the container, and an air inlet 6, separate from the liquid outlet 5, to an inflatable air reservoir in the form of a flexible bag 7 provided in the chamber 3. The bag 7 is closed to the interior of the chamber 3 and has its exterior open to the exterior of the container 1 only via the air inlet 6 which is permanently open to the interior of the bag 7.
When the container 1 is full of liquid the air bag 7 is totally collapsed within the chamber 3, which is entirely filled by the liquid save for the space occupied by the collapsed air bag 7. As shown in the Figure, with the container 1 positioned with its opened liquid outlet 5 lowermost, liquid flows from the chamber 3 through the outlet 5, as indicated by arrow L, under gravitational force. At the same time, as indicated by arrow A, air to replace the emptying liquid enters the air bag 7 through the open air inlet 6 to inflate the air bag 7. This inflowing air enters through the inlet 6, which is separate from the liquid outlet 5, and so does not interfere with the exiting liquid. Accordingly a smooth flow of liquid from the container can be obtained.
As discussed above, the arrangement of the air inlet 6 permanently open to the interior of the flexible bag 7 has the advantage that the air inlet 6 does not need to be fitted with a valve that has to be closed to prevent leakage of liquid during transportation of the container full of liquid, and that has to be opened when liquid is to be dispensed from the container, the air inlet 6 being permanently isolated from the contained liquid 4 by the flexible bag 7. Furthermore, a substantial part of the contained liquid 4 is contained directly by the rigid or substantially rigid wall portion 2. These features are particularly advantageous if the container is one that is mobile in use.
A particular use of the container is for delivering herbicide to a herbicide sprayer that is mobile in use but, of course, the container can be used wherever it is desirable to have smooth outflow of liquid when emptying the container.
Claims (3)
1. A container for liquids having a rigid or substantially rigid walled portion defining a chamber for liquid to be contained therein in direct contact with the rigid or substantially rigid walled portion, the container having a liquid outlet from the chamber to the exterior of the container, and an air inlet, separate from the liquid outlet, to an inflatable air reservoir provided in the chamber, this air reservoir being closed to the interior of the chamber and having its interior open to the exterior of the container only via the air inlet.
2. A container as claimed in claim 1, wherein the inflatable air reservoir is a flexible bag.
3. A container for liquids, substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9411677A GB2290279A (en) | 1994-06-10 | 1994-06-10 | Rigid walled container with liquid outlet and air inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9411677A GB2290279A (en) | 1994-06-10 | 1994-06-10 | Rigid walled container with liquid outlet and air inlet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9411677D0 GB9411677D0 (en) | 1994-08-03 |
| GB2290279A true GB2290279A (en) | 1995-12-20 |
Family
ID=10756543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9411677A Withdrawn GB2290279A (en) | 1994-06-10 | 1994-06-10 | Rigid walled container with liquid outlet and air inlet |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2290279A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1132316A1 (en) * | 2000-03-16 | 2001-09-12 | Wolfgang Jobmann Gmbh | Container for dispensing beverages under air-free conditions |
| WO2002014143A1 (en) * | 2000-08-15 | 2002-02-21 | Paul Richards | An inflatable article & enclosure |
| WO2008105018A2 (en) * | 2007-02-26 | 2008-09-04 | Glauco Banna | System for eliminating gas contacting liquid, solid or granular contents within containers after a partial consumption and/or use of said contents |
| CN102069962A (en) * | 2009-11-22 | 2011-05-25 | 宁波鼎安电器有限公司 | Pressure barrel |
| CN105424893A (en) * | 2015-12-24 | 2016-03-23 | 浙江工业大学 | Air renewing system used for small-size sealing chamber and air renewing method therefor |
| ES2924440A1 (en) * | 2021-03-18 | 2022-10-06 | Liquidpack S L | CONTAINER BAG FOR FLUID PRODUCTS (Machine-translation by Google Translate, not legally binding) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4723688A (en) * | 1983-11-03 | 1988-02-09 | Munoz Edward A | Beverage container and dispenser |
| GB2221443A (en) * | 1988-08-02 | 1990-02-07 | Stewart Aiton Howat | Container with internal membrane |
-
1994
- 1994-06-10 GB GB9411677A patent/GB2290279A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4723688A (en) * | 1983-11-03 | 1988-02-09 | Munoz Edward A | Beverage container and dispenser |
| GB2221443A (en) * | 1988-08-02 | 1990-02-07 | Stewart Aiton Howat | Container with internal membrane |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1132316A1 (en) * | 2000-03-16 | 2001-09-12 | Wolfgang Jobmann Gmbh | Container for dispensing beverages under air-free conditions |
| WO2002014143A1 (en) * | 2000-08-15 | 2002-02-21 | Paul Richards | An inflatable article & enclosure |
| WO2008105018A2 (en) * | 2007-02-26 | 2008-09-04 | Glauco Banna | System for eliminating gas contacting liquid, solid or granular contents within containers after a partial consumption and/or use of said contents |
| WO2008105018A3 (en) * | 2007-02-26 | 2008-11-13 | Glauco Banna | System for eliminating gas contacting liquid, solid or granular contents within containers after a partial consumption and/or use of said contents |
| CN102069962A (en) * | 2009-11-22 | 2011-05-25 | 宁波鼎安电器有限公司 | Pressure barrel |
| CN105424893A (en) * | 2015-12-24 | 2016-03-23 | 浙江工业大学 | Air renewing system used for small-size sealing chamber and air renewing method therefor |
| ES2924440A1 (en) * | 2021-03-18 | 2022-10-06 | Liquidpack S L | CONTAINER BAG FOR FLUID PRODUCTS (Machine-translation by Google Translate, not legally binding) |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9411677D0 (en) | 1994-08-03 |
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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) |