Special receptacle or package – For mixing – Tear strip or piercer
Patent
1998-01-28
1999-10-26
Ackun, Jacob K.
Special receptacle or package
For mixing
Tear strip or piercer
215DIG8, B65D 2500
Patent
active
059711400
DESCRIPTION:
BRIEF SUMMARY
The invention relates to apparatus for introducing a fluid into a first liquid and especially a container which introduces the fluid into the first liquid on opening of the container.
In a wide number of applications, such as pharmaceuticals for both human and animal use, agrochemicals and other more general applications it may be necessary to release and mix a liquid catalyst or reagent into a liquid before the liquid may be used. Conventional methods involve a user measuring out the liquid catalyst or reagent and then adding it to the main liquid. This may cause problems in that it is prone to human error in the measuring of the amount of liquid catalyst or reagent and may also be hazardous if the catalyst or reagent is toxic.
In accordance with the present invention, apparatus for introducing a fluid into a first liquid comprises a first container for containing the first liquid, the first container having an opening closed by a releasable closure, and a second container located in the first container adjacent the opening of the first container; the second container comprising an outer housing located in the opening and an inner container containing a fluid, the inner container being movably mounted in the housing for movement between a closed position in which the inner container is sealed by the housing when the releasable closure closes the opening, and an open position in which the fluid within the inner container is released from the inner container into the first container and into contact with the first liquid on release of the releasable closure.
An advantage of the invention is that by using a second container located adjacent the opening of the first container and adapted to release a fluid into the first container and into contact with the first liquid on release of the closure, it is possible to introduce the fluid into the first liquid without requiring direct handling of the fluid by a user.
Preferably, the second container may include a conduit into which the fluid passes on release of the closure and the conduit extends below the surface of the first liquid in the first container. Typically, the conduit extends to at least adjacent the mid-section of the first liquid in the first container and preferably, extends to adjacent the bottom of the first container.
Typically, the fluid may be a gas and/or a second liquid. The fluid may be pressurised to aid expulsion of the fluid from the second container on release of the closure. Typically, where the second container comprises an outer housing and an inner container, pressurised gas is located in the inner container with the second liquid.
Preferably, the inner container includes a rupturable member and the housing includes a rupturing member to rupture the rupturable member on the inner container. Typically, the rupturable member may be a membrane.
Preferably, the inner container is located in an initial position prior to insertion into the container and on closing of the first container by the closure moves the inner container to the closed position. Typically, the second container also includes a sealing device and when the inner container is in the closed position the rupturing member has ruptured the rupturable member of the inner container but the contents of the inner container are prevented from being released from the inner container by the sealing member. Typically, the sealing member is attached to the inner container and seals against the rupturing member on the housing. When the inner container moves to the open position the seal member no longer prevents release of the fluid from the inner container.
Preferably, the first and second liquids may be any combination of liquids. Examples of first and second liquids are pharmaceutical liquids, agrochemical liquids and any other combination of liquids which requires a second liquid to be added to a first liquid prior to use of the liquid mixture.
An example of a container for introducing a fluid into a first liquid in accordance with the invention will now be described with reference
REFERENCES:
patent: 3856138 (1974-12-01), Maekawa et al.
patent: 5038951 (1991-08-01), Rizzardi
patent: 5543097 (1996-08-01), Fang
Ackun Jacob K.
Rocep Lusol Holdings Limited
LandOfFree
Apparatus for mixing a fluid and a liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for mixing a fluid and a liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for mixing a fluid and a liquid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-753458