Apparatus for dispensing and mixing liquids

Claim 2

Fluid mixing means for mixing and dispensing at least first and second fluids comprising: first, second and third conduits each having inlet and outlet ends; a mixing chamber having first and second inlet openings and an outlet opening; the inlet ends of said first and second conduits being adapted to respectively receive said first and second fluids and having their outlet ends respectively coupled to the first and second inlet openings of said mixing chamber; the inlet end of said third conduit being coupled to the outlet opening of said mixing chamber for passing the admixed fluids out of said third conduit outlet end; at least portions of said first, second and third conduits being flexible to facilitate selective opening or closure of said conduits; said fluid mixing means comprises at least first and second flexible plastic sheets being joined together to form said first, second and third conduits and said mixing chamber; means cooperating with said flexible chamber for adjusting the volume of the chamber; said sheets being further joined to form a storage container adapted to store one of said fluids and having an opening in communication with the inlet end of one of said first and second conduits.

Claim 3

Fluid mixing means for mixing and dispensing at least first and second fluids comprising: first, second and third conduits each having inlet and outlet ends; a mixing chamber having first and second inlet openings and an outlet openings; the inlet ends of said first and second conduits being adapted to respectively receive said first and second fluids and having their outlet ends respectively coupled to the first and second inlet openings of said mixing chamber; the inlet end of said third conduit being coupled to the outlet opening of said mixing chamber for passing the admixed fluids out of said third conduit outlet end; at least portions of said first, second and third conduits being flexible to facilitate selective opening or closure of said conduits; first, second and third control means for selectively closing and opening said first, second and third conduits, respectively; fourth means normally biasing said first control means to close said first conduit; fifth means normally biasing said second and third control means to respectively close and open said second and third conduits; operating means for moving said first, second and third control means, when actuated, to the closed, open and closed positions, respectively, for enabling the fluid entering said second conduit to pass into said mixing chamber; sixth means responsive to the actuation of said operating means for reversing the conditions of said first, second and third conduits to enable said fluids to be admixed and pass through said mixing chamber and out of said third conduit outlet.

Claim 4

Fluid mixing means for mixing and dispensing at least first and second fluids comprising: first, second and third conduits each having inlet and outlet ends; a mixing chamber having first and second inlet openings and an outlet openings; the inlet ends of said first and second conduits being adapted to respectively receive said first and second fluids and having their outlet ends respectively coupled to the first and second inlet openings of said mixing chamber; the inlet end of said third conduit being coupled to the outlet opening of said mixing chamber for passing the admixed fluids out of said third conduit outlet end; at least portions of said first, second and third conduits being flexible to facilitate selective opening or closure of said conduits; first, second and third control means for selectively closing and opening said first, second and third conduits, respectively; fourth means normally biasing said first control means to close said first conduit; fifth means normally biasing said second and third control means to respectively close and open said second and third conduits; operating means for moving said first, second and third control means, when actuated, to the closed, open and closed positions, respectively, for enabling the fluid entering said second conduit to pass into said mixing chamber; sixth means responsive to the actuation of said operating means for reversing the conditions of said first, second and third conduits to enable said fluids to be admixed and pass through said mixing chamber and out of said third conduit outlet.

Claim 5

Fluid mixing means for mixing and dispensing at least first and second fluids comprising: first, second and third conduits each having inlet and outlet ends; a mixIng chamber having first and second inlet openings and an outlet opening; the inlet ends of said first and second conduits being adapted to respectively receive said first and second fluids and having their outlet ends respectively coupled to the first and second inlet openings of said mixing chamber; the inlet end of said third conduit being coupled to the outlet opening of said mixing chamber for passing the admixed fluids out of said third conduit outlet end; at least portions of said first, second and third conduits being flexible to facilitate selective opening or closure of said conduits; a metering cup for receiving one of said first and second fluids and having fourth conduit means for transferring the liquid contents thereof to the inlet end of said first conduit; a fifth conduit for supplying the liquid to said metering cup; means for closing said fifth conduit when the liquid in said metering cup reaches a predetermined level.

Claim 6

Fluid mixing means for mixing and dispensing at least first and second fluids comprising: first, second and third conduits each having inlet and outlet ends; a mixIng chamber having first and second inlet openings and an outlet opening; the inlet ends of said first and second conduits being adapted to respectively receive said first and second fluids and having their outlet ends respectively coupled to the first and second inlet openings of said mixing chamber; the inlet end of said third conduit being coupled to the outlet opening of said mixing chamber for passing the admixed fluids out of said third conduit outlet end; at least portions of said first, second and third conduits being flexible to facilitate selective opening or closure of said conduits; a metering cup for receiving one of said first and second fluids and having fourth conduit means for transferring the liquid contents thereof to the inlet end of said first conduit; a fifth conduit for supplying the liquid to said metering cup; means for closing said fifth conduit when the liquid in said metering cup reaches a predetermined level.

Claim 7

A bag structure for storing at least a first liquid and mixing said first liquid with a seond liquid comprising: first and second flexible plastic sheets, said sheets being sealed to one another to form a first cavity of a first predetermined volume for storing said first liquid, a second cavity of a second predetermined volume less than said first predetermined volume, a conduit joining said first and second cavities, a second conduit having an inlet end adapted to receive a second liquid from a source located external to said bag and an outlet end coupled to the second cavity, and a third conduit having an inlet end coupled to said second cavity and an outlet end adapted to pass any liquid entering said second cavity out of said bag structure whereby the liquids are admixed in said mixing chamber prior to being dispensed.

Claim 8

A bag structure for storing at least a first liquid and mixing said first liquid with a seond liquid comprising: first and second flexible plastic sheets, said sheets being sealed to one another to form a first cavity of a first predetermined volume for storing said first liquid, a second cavity of a second predetermined volume less than said first predetermined volume, a conduit joining said first and second cavities, a second conduit having an inlet end adapted to receive a second liquid from a source located external to said bag and an outlet end coupled to the second cavity, and a third conduit having an inlet end coupled to said second cavity and an outlet end adapted to pass any liquid entering said second cavity out of said bag structure whereby the liquids are admixed in said mixing chamber prior to being dispensed.

Claim 9

The bag structure of claim 4 further comprising a container for said bag, said container having a pair of front and rear faces maintained in spaced relationship by a pair of side members joined to the ends of said faces; and forming a hollow interior region for housing said first cavity with the remainder of said bag structure extending beyond one end of said container; one of said faces having a first bendable flap extending in the direction of the remainder of said bag structure and being bent so as to be against the other of said faces to seal said container and sandwich the reminder of said bag structure between said flap and said other face to facilitate handling, storage and shipment of said container when not in use.

Claim 10

The structure of claim 5 further comprising means for securing said bag structure to one of said faces and said first flap.

Claim 11

The structure of claim 5 wherein one of said faces is provided with a second flap extending in a direction opposite said first flap, said second flap having a pair of apertures for mounting said structure within a dispensing apparatus.