Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Receiver actuated discharge means
Patent
1983-01-24
1985-04-09
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Receiver actuated discharge means
993231, 222394, 251 25, 251 77, 261DIG7, B65B 304
Patent
active
045095698
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an arrangement for supplying gas to a liquid in a container having a gas conduit discharging thereinto, particularly for preparing aerated beverages. The container includes an orifice through which liquid is introduced into the container; an orifice through which liquid can be emptied from the container; and a gas-venting orifice.
BACKGROUND ART
For the purpose of preparing aerated beverages on a small scale, for example in the home, apparatuses are known by means of which carbon dioxide can be supplied to water in a bottle, the water then being flavoured with a flavouring substance. In the preparation of such beverages, it is necessary to first fill a bottle with water up to a given level, and then to hold the bottle firmly gripped in the apparatus while supplying carbon dioxide to the water. The bottle is then removed from the apparatus and the flavouring substance added. The beverage is then ready to be poured into a drinking glass or the like.
In addition to being relatively complicated, since among other things it requires the use of a separate bottle whose form and size are adapted to the apparatus in question, the aforedescribed procedure for preparing aerated beverages is also encumbered with other problems and safety risks. Among other things, it is difficult to obtain an accurate seal when using standard bottles, since these bottles can vary greatly in height. In addition, risks are involved when subjecting return bottles to pressure, since in addition to uneven manufacturing quality the bottles may have been damaged during previous use or transportation. Further, in the case of known apparatus the bottle can be pressurized without having been filled with liquid, which presents a risk of serious injury should the bottle explode. It is also possible with known apparatus to overfill the bottle with liquid, rendering it impossible to supply sufficient carbon dioxide to the liquid. In order to aerate a liquid effectively in a container, it is necessary to provide above the surface of the liquid a space in which the gas can be compressed.
It has also been proposed to introduce carbon dioxide into a liquid enclosed in a container fixed in an apparatus, and to pour the aerated liquid directly from the container into a glass. The use of this container is also relatively complicated, however, and in some respects the arrangement is unsafe. Thus, it has been possible to pour liquid from the container while the container still is under high pressure. This can result in the liquid being pressed out into a drinking glass at high rate and splashing out of the glass, or in the glass being flushed away. Further, it has also been possible with this arrangement to pressurize the container when it is empty.
OBJECT OF INVENTION
The main object of the present invention is to provide an apparatus of the kind mentioned in the introduction in which the aforementioned risk of the liquid being flushed out violently in connection with emptying the liquid from the container is eliminated.
BRIEF SUMMARY OF THE INVENTION
This object is fulfilled in accordance with the invention by arranging the pouring orifice which preferably is located in the lower part of the container, so as to open only when the pressure in the container falls below a given value.
The tapping or pouring orifice is suitably provided with a valve which, when being placed in an active state or unblocked, can be automatically opened by a force, preferably a spring force, acting on the valve immediately the pressure in the container falls beneath said given value. This prevents liquid from being unintentionally dispensed from the container when the liquid is under high pressure. This unblocking of the aforementioned valve is suitably effected when an evacuating valve connected to the gas-venting orifice is activated. The arrangement also suitably comprises a metering means which, when activated, opens the evacuating valve and unblocks the pouring valve. The metering means may suitably comprise a lever
REFERENCES:
patent: 3170487 (1965-02-01), Juilfs et al.
patent: 3896840 (1975-07-01), Andersson
patent: 4304741 (1981-12-01), Avison et al.
patent: 4342710 (1982-08-01), Adolfsson et al.
patent: 4343824 (1982-08-01), Caldwell
patent: 4347783 (1982-09-01), Ogden
Bell, Jr. Houston S.
Kommanditbolaget Aldolf
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