Penetrable cap

摘要

A cap having a core structure dimensioned to receive a pipette therethrough. The cap includes two axially aligned frangible seals that are affixed to the core structure in a spaced-apart relationship. The frangible seals are constructed so that air passageways are formed between the frangible seals and a pipette tip when the pipette tip penetrates the frangible seals. The cap optionally includes a filter interposed between the first and second frangible seals.

主权项

1. A penetrable id="REI-00004" date="20141014" screwid="REI-00004" 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 disk-shaped, frangible seals affixed to the core structure, wherein the second seal isbeing axially aligned with and positioned below the first seal in a spaced-apart relationship, and, wherein the second seal 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 first and second seals are constructed and arranged so that air passageways are formed between a plastic pipette tip and the first and second seals when the pipette tip penetrates the first and second seals, thereby permitting air to be vented through the cap.