Closed dispensing system for transferring liquids between containers

Abstract

An apparatus and method for transferring liquids between containers in a closed dispensing system is provided. The closed dispensing system comprises a dispensing container, an exchange chamber, a receiving container, and connectors between the dispensing container, exchange chamber and receiving container. Liquid is released from the dispensing container into the exchange chamber where it collects, creating hydraulic head and forcing the liquid into the receiving container. As the liquid collects in the receiving container, the atmosphere in the receiving container is forced through the exchange chamber and into the dispensing container. This provides an exchange of liquid and atmosphere between the dispensing container and receiving container without the liquid or vapors being exposed to the outside atmosphere. This reduces the risk of exposure to potentially hazardous or otherwise harmful liquids or vapors by the operator transferring the liquid between the containers, and the outside environment.

1 . A closed dispensing system for transferring liquids comprising:
 at least one chamber for the exchange of liquid and atmosphere between a dispensing container and a receiving container;   a dispensing container defining a sealed container having at least one connection to said exchange chamber;   a receiving container defining a sealed container having at least one connection to said exchange chamber;   whereby said at least one chamber will facilitate an exchange of liquid and atmosphere between said dispensing container and said receiving container using hydraulic head created in said exchange chamber.   
     
     
         2 . The dispensing system of  claim 1 , further comprising a connecting tube between the dispensing container and the exchange chamber. 
     
     
         3 . The dispensing system of  claim 1 , further comprising a connecting tube between the exchange chamber and the receiving container. 
     
     
         4 . The dispensing system of  claim 1 , further comprising an exchange chamber sealed from the outside atmosphere. 
     
     
         5 . The dispensing system of  claim 1 , further comprising a funnel shape to the exchange chamber. 
     
     
         6 . The dispensing system of  claim 1 , further comprising a sealed connection, line or tube from the exchange chamber to a collection container.