초록 ▼

A closure for containers has a septum of elastomeric material which is self-resealing when punctured by a blunt ended tubular implement for access to the contents of the container. In one application the elastomeric closure is incorporated in a twist-off cap for a bottle or vial and is self-resealin

A closure for containers has a septum of elastomeric material which is self-resealing when punctured by a blunt ended tubular implement for access to the contents of the container. In one application the elastomeric closure is incorporated in a twist-off cap for a bottle or vial and is self-resealing after being punctured by a laboratory pipette.

대표청구항 ▼

1. A self-resealing closure for a container comprising a septum of elastomeric material disposed for closing an opening in said container, said septum having a generally depressed portion including an area of minimum thickness, said depressed portion increasing in thickness radially from a minimum t

1. A self-resealing closure for a container comprising a septum of elastomeric material disposed for closing an opening in said container, said septum having a generally depressed portion including an area of minimum thickness, said depressed portion increasing in thickness radially from a minimum thickness to a much thicker elastomeric material encompassing said area of minimum thickness, said depressed portion and said area of minimum thickness being shaped and configured to elastically distend to pass an implement having a width greater than a tear in said area of minimum thickness required for passage of said implement through said septum and to be self-reclosing by returning opposite edges of said tear to a substantially contiguous closed condition after withdrawal of said implement from said septum.