Hermetically sealable container

By using inductive sealing elements and processes, the limitations of crimp caps and glass ampoule seals are overcome, achieving the effect of maintaining an airtight seal and easy removal of the CRM in wide-neck containers, suitable for containers of certified reference materials.

CN122295273APending Publication Date: 2026-06-26EMD MILLIPORE CORP
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Patent Information

Application Number
CN202480075940.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-30
Filing Date
2024-08-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the prior art, the sealing performance of crimp-cap sealed containers is easily affected by thermal expansion and physical expansion when stored at low temperatures, leading to seal failure. Glass ampoule seals, on the other hand, require high-temperature melting and are prone to damaging the CRM, and it is difficult to economically remove residual material.

Method used

The system employs an inductive sealing element combined with an inductive sealing process, using heat to bond the seal to the container, forming an airtight seal. It is suitable for wide-neck containers, reduces the impact of thermal cycling, and supports automated and efficient removal of the CRM.

Benefits of technology

It achieves the maintenance of container airtightness under normal transportation and temperature change conditions, reduces the risk of seal failure, simplifies the CRM removal process, and reduces material waste and costs.

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Abstract

A container for hermetically sealing authentication reference material includes a top portion, a bottom portion, and sidewalls spanning between the top portion and the bottom portion to define an interior portion. The container also includes an opening disposed in an upper surface of the top, the opening providing access to the interior. The container also includes a recessed ring formed in an upper surface of the top, which may be concentric with the opening. The container includes an inductive seal bonded to an upper surface of the top of the container, where the inductive seal is at least partially disposed in the at least one recessed ring. An intermediate portion of the container disposed between the top and bottom may have a generally frustoconical shape. The container may also include a set of threads proximate the top to enable the screw cap to be attached to the container.
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