Bottle seal

Claim 2

In a bottle seal including a resilient material stopper having a first axial end section adapted to overlie an axial end of a bottle neck and having a radially extending surface for sealingly engaging the axial end of the bottle neck, the stopper having an axial extension for projecting into the bottle neck and sealingly engaging the inner diameter of the bottle neck, with a slit through the stopper for receipt of a liquid withdrawal needle, and a metal cap overlying the stopper and adapted to attach the stopper to the bottle neck, the metal cap having an opening through an end face thereof aligned with the slit, the improvement of a thin foil member interposed between an axial end of the stopper exterior of the bottle and the metal cap, the foil underlying the opening in the metal cap and overlying the slit, the foil sealing the stopper, and the foil being piercable by a liquid withdrawal needle, a resilient disk is interposed between the metal cap and the foil, the resilient disk having a central slit therethrough, the slit aligned with the opening in the metal cap and with the slit in the stopper, the stopper has an axial extension receivable interior of the neck of the bottle, the axial extension terminating interior of the neck of the bottle in a lip seal engageable with an inner diameter wall of the bottle neck, the extension having an annular groove therearound for defining an air spaced between the extension and the inner diameter wall of the neck of the bottle adjacent the lip seal, an air channel communicating the groove to the exterior of the stopper interior of the foil.

Claim 3

A bottle seal according to claim 1 wherein the stopper has an axial extension receivable interior of the neck of the bottle, the axial extension terminating exterior of the neck of the bottle in a lip seal engageable with an inner diameter wall of the bottle neck, the extension having an annular groove therearound for defining an air space between the extension and the inner diameter wall of the neck of the bottle adjacent the lip seal, an air channel communicating the groove to the exterior of the stopper interior of the foil.

Claim 4

A bottle seal according to claim 1 wherein the stopper has a central axially extending recess in its upper section open to a top of the stopper, the recess open to a bottom face of the stopper through the stopper slit, the recess having a dimension greater than the diameter of the liquid withdrawal needle and the air channel open to the recess.

Claim 5

A bottle seal according to claim 4 wherein the stopper has a central axially extending recess in its upper section open to a top of the stopper, the recess open to a bottom face of the stopper through the stopper slit, the recess having a dimension greater than the diameter of the liquid withdrawal needle and the air channel open to the recess.

Claim 6

A bottle seal according to claim 3 wherein a resilient disk is interposed between the metal cap and the foil, the resilient disk having a central slit therethrough, the slit aligned with the opening in the metal cap and with the slit in the stopper, the disk slit being larger than the stopper slit and the stopper slit dimensioned to seal a liquid withdrawal needle received therein.

Claim 7

A bottle seal according to claim 4 wherein a resilient disk is interposed between the metal cap and the foil, the resilient disk having a central slit therethrough, the slit aligned with the opening in the metal cap and with the slit in the stopper, the disk slit being larger than the stopper slit and the stopper slit dimensioned to seal a liquid withdrawal needle received therein.

Claim 8

A bottle seal comprising a resilient stopper having an upper section adapted to overlie the end of a neck of a bottle and having a radial wall portion for engagement with an axial end of a bottle neck, an axial projection section for receipt interior of the bottle neck having an outer diameter dimensioned to engage an inner diameter wall of the bottle neck in sealing engagement therewith, the extension terminating in a lip seal, the stopper having aligned inner and outer recesses communicating to one another through a slit area in a wall portion dividing the recesses, the slit area dimensioned to sealingly engage a liquid withdrawal needle thrust therethrough, a pierceable foil sheet overlying the stopper closing the outer recess and sealingly engaging an exterior end of the stopper, a metal cap member having an end portion overlying the end of the stopper and peripheral portions adapted to engage the bottle neck to maintain the stopper on the bottle neck, the cap having an end portion central opening therethrough aligned with the stopper slit area, the foil underlying the cap opening, a resilient disk is interposed between the end portion of the cap and the foil, the disk having a central slot therethrough aligned with the recesses and the stopper slot, the cap end portion overlying the disk, the cap opening aligned with the disk slot, the disk slot and the upper recess have a dimension greater than the diameter of a liquid withdrawal needle to be inserted into the bottle through the seal whereby air can flow past the needle through the disk slot to the upper recess, an air channel extends from the upper recess to an annular groove in the outer diameter of the extension adjacent the lip seal.

Claim 9

A bottle seal comprising a resilient stopper having an upper section adapted to overlie the end of a neck of a bottle and having a radial wall portion for engagement with an axial end of a bottle neck, an axial projection section for receipt interior of the bottle neck having an outer diameter dimensioned to engage an inner diameter wall of the bottle neck in sealing engagement therewith, the extension terminating in a lip seal, the stopper having aligned inner and outer recesses communicating to one another through a slit area in a wall portion dividing the recesses, the slit area dimensioned to sealingly engage a liquid withdrawal needle thrust therethrough, a pierceable foil sheet overlying the stopper closing the outer recess and sealingly engaging an exterior end of the stopper, a metal cap member having an end portion overlying the end of the stopper and peripheral portions adapted to engage the bottle neck to maintain the stopper on the bottle neck, the cap having an end portion central opening therethrough aligned with the stopper slit area, the foil underlying the cap opening, a resilient disk is interposed between the end portion of the cap and the foil, the disk having a central slot therethrough aligned with the recesses and the stopper slot, the cap end portion overlying the disk, the cap opening aligned with the disk slot, the disk slot and the upper recess have a dimension greater than the diameter of a liquid withdrawal needle to be inserted into the bottle through the seal whereby air can flow past the needle through the disk slot to the upper recess, an air channel extends from the upper recess to an annular groove in the outer diameter of the extension adjacent the lip seal.