Patent ID: 8685347
Filing Date: 2014-04-01
Classification: B01L,B65D,B65G,H01L,Y10T

Abstract:
1. A penetrable cap comprising: a generally cylindrical core structure configured to be screwed onto an open-ended vessel, the core structure being a molded plastic formed to have an opening extending therethrough; and first and second frangible seals affixed to the core structure, the second seal being axially aligned with and positioned below the first seal, wherein the second seal comprises a foil and is constructed and arranged to provide a barrier to the passage of a fluid through the opening formed in the core structure, wherein the cap is capable of being penetrated by a plastic pipette tip, and wherein the seals are constructed and arranged so that air passageways are formed when the seals are pierced by a plastic pipette tip, thereby permitting air to be vented through the cap.