Patent ID: 7441677

Claim:
A device for insertion in and coupling with a neck of an open bottle having a fluid therein comprising: a pour spout having a conduit therethrough; a coupling portion of said pour spout having a generally hollow cylindrical form forming a portion of said conduit with an outer wall having an intake flange at an intake end and an opening flange adjacent an annular lip member; said outer wall having a flat portion and said intake flange having a corresponding flat portion; a coupling sleeve disposed on said coupling portion; a discharge portion of said pour spout having a generally half spherical member having a bore therethrough forming a portion of said conduit and abutting said annular lip member; and said half spherical member and said opening flange having a pressure equalization duct therethrough parallel to and adjacent to said conduit wherein an exit opening of said pressure equalization duct disposed adjacent said flat portion.