Beverage insulating and cooling receptacle

Claim 1

An insulating and cooling receptacle for a beverage-containing cylindrical bottle of the type having an elongated tapering neck terminating in a top portion of a diameter which is significantly less than that of the main body of the bottle, which comprises: a hollow cylindrical base portion having an open top and dimensioned so its internal diameter leaves a thin annular air gap between the side walls of said base portion and the beverage bottle to be removably received therein, said base portion being further dimensioned so its height substantially corresponds with the height of the straight-sided cylindrical portion of said beverage bottle; a cap portion dimensioned to be removably secured to the open top of said base portion and of sufficient height to permit only enough of the top portion of the beverage bottle to project therefrom as is required to comfortably permit beverage to be poured from the bottle or to be drunk directly therefrom while the bottle is contained within the receptacle, said cap portion having a centrally located opening at its top to permit said projection of the top portion of the bottle, said cap portion having inner and outer concentric walls joined together near their upper and lower extremities to create a fluid-tight annular chamber therebetween which is permanently filled with a freezable substance, said outer wall being generally cylindrical to form an upward extension of said base portion side walls when secured thereto, said inner wall being generally conical and converging upwardly from a lower junction with said outer wall toward an upper junction at said cap portion opening with a radially inwardly extending portion of said outer wall, said inner wall being shaped and dimensioned to be closely spaced from the tapered neck of the bottle, thereby permitting maximum enclosed volume within said annular chamber for a given external diameter of said base portion; and means for removably securing said cap portion to said base portion.