Method and apparatus for storing and dispensing effervescent beverages

Claim 2

A liquid dispenser container comprising: a. a distensible resilient bladder having an open end; b. a substantially rigid head member; c. means for securing the open end of said bladder on said head member with a fluid tight seal to define a variable chamber therebetween; d. means for introducing a selected liquid between said bladder and head member; e. means for removing gas from the chamber between said bladder and head member during introducing the selected liquid, said means for removing gas permitting flow in only one direction thereby preventing flow therethrough into said bladder, said bladder retaining the selected liquid under super atmospheric pressure and permitting selective dispensing of same, f. valve means operative for selectively drawing liquid from said chamber which reduces in size in accordance with the volume withdrawn; g. means for introducing a gas under a selected pressure between said bladder and said head member to distend said bladder.

Claim 3

A liquid dispenser container comprising: a. a distensible resilient bladder having an open end; b. a substantially rigid head member; c. means for securing the open end of said bladder on said head member with a fluid tight seal to define a variable chamber therebetween; d. said head member being a generally planar member having one surface in facing relation with said bladder; e. said bladder has a web portion in facing relation with the one surface of said head member; f. means for introducing a selected liquid between said bladder and head member; g. Means for removing gas from the chamber between said bladder and head member during introducing the selected liquid, said means for removing gas permitting flow in only one direction thereby preventing flow therethrough into said bladder, said bladder retaining the selected liquid under super atmospheric pressure and permitting selective dispensing of same; h. valve means operative for selectively drawing liquid from said chamber which reduces in size in accordance with the volume withdrawn; i. said bladder being pre-formed in size to have the web portion thereof normally movable into engagement with the one surface of said head member to remove the space therebetween and force substantially all the selected liquid from said space.

Claim 4

A liquid dispenser container comprising: a. a distensible resilient bladder having an open end; b. a substantially rigid head member; c. means for securing the open end of said bladder on said head member with a fluid tight seal to define a variable chamber therebetween; d. said head member being a generally planar member having one surface in facing relation with said bladder; e. said bladder has a web portion in facing relation with the one surface of said head member; f. means for introducing a selected liquid between said bladder and head member; g. Means for removing gas from the chamber between said bladder and head member during introducing the selected liquid, said means for removing gas permitting flow in only one direction thereby preventing flow therethrough into said bladder, said bladder retaining the selected liquid under super atmospheric pressure and permitting selective dispensing of same; h. valve means operative for selectively drawing liquid from said chamber which reduces in size in accordance with the volume withdrawn; i. said bladder being pre-formed in size to have the web portion thereof normally movable into engagement with the one surface of said head member to remove the space therebetween and force substantially all the selected liquid from said space.

Claim 5

A container as set forth in claim 2 including: a. a shell member enclosing said bladder and defining a space into which said bladder may be distended to thereby confine same when distended to contain a desired volume of the selected liquid; and b. vent means in said shell member to permit escape of air from said shell member during distention of said bladder to thereby prevent pressure on an exterior surface thereof.

Claim 6

A container as set forth in claim 3 including means for introducing a gas under a selected pressure between the web portion of said bladder and the one surface of said head member to distend said bladder.

Claim 7

A container as set forth in claim 2 wherein: a. said one surface of the head member is convex toward the web portion of said bladder; and b. said web portion of said bladder has a thickened portion therein.

Claim 8

A container as set forth in claim 2 wherein: a. said head member has peripheral edge portions engageable by said bladder; b. said bladder has peripheral edge portions defining the open end thereof and engageable with the peripheral edge portions of said head member; and c. said bladder is preformed and sized to have the web portions thereof stressed when the peripheral edge portions thereof are mounted on the peripheral edge portions of said head member whereby said web portion of said bladder is in engagement with the one surface of said head member except when distended.

Claim 9

A container as set forth in claim 3 wherein said means for introducing a selected liquid between said bladder and said head member includes parts operative for introducing a gas under a selected pressure between the web portion of said bladder and the one surface of said head member to distend said bladder.

Claim 10

A liquid dispenser container comprising: a. a distensible resilient bladder having an open end; b. a substantially rigid head member; c. means for securing the open end of said bladder on said head member with a fluid tight seal to define a variable chamber therebetween; d. said head member has peripheral edge portions engageable by said bladder; e. said bladder has peripheral edge portions defining the open end thereof and engageable with portions of said head member; f. said means for securing the open end of said bladder on said head member includes a clamp member extending around the periphery of the container and having portions movable in to clamping engagement with said portions of said head member and the peripheral edge portions of said bladder for effecting sealed engagement between portions of said head member and said bladder; g. said removable bladder and said head member being separable to effect disassembly of the container to permit cleaning and sterilizing the components thereof upon removal of said clamp means; h. means for introducing a selected liquid between said bladder and head member; i. means for removing gas from the chamber between said bladder and head member during introducing the selected liquid, said means for removing gas permitting flow in only one direction thereby preventing flow therethrough into said bladder, said bladder retaining the selected liquid under super atmospheric pressure and permitting selectiVe dispensing of same; and j. valve means operative for selectively drawing liquid from said chamber which reduces in size in accordance with the volume withdrawn.

Claim 11

A liquid dispenser container comprising: a. a distensible resilient bladder having an open end; b. a substantially rigid head member; c. means for securing the open end of said bladder on said head member with a fluid tight seal to define a variable chamber therebetween; d. said head member has peripheral edge portions engageable by said bladder; e. said bladder has peripheral edge portions defining the open end thereof and engageable with portions of said head member; f. said means for securing the open end of said bladder on said head member includes a clamp member extending around the periphery of the container and having portions movable in to clamping engagement with said portions of said head member and the peripheral edge portions of said bladder for effecting sealed engagement between portions of said head member and said bladder; g. said removable bladder and said head member being separable to effect disassembly of the container to permit cleaning and sterilizing the components thereof upon removal of said clamp means; h. means for introducing a selected liquid between said bladder and head member; i. means for removing gas from the chamber between said bladder and head member during introducing the selected liquid, said means for removing gas permitting flow in only one direction thereby preventing flow therethrough into said bladder, said bladder retaining the selected liquid under super atmospheric pressure and permitting selectiVe dispensing of same; and j. valve means operative for selectively drawing liquid from said chamber which reduces in size in accordance with the volume withdrawn.