Sealing collar for capping flange for reconditioned barrels

RU2026116955APending Publication Date: 2026-07-02GREIF INT HLDG BV
0 Cites 0 Cited by

Patent Information

Application Number
RU2026116955
Authority / Receiving Office
RU · RU
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-03
Filing Date
2024-10-28
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing closure flange sealing collars for reconditioned containers face challenges such as variability in flange curl and flange pocket neck geometries, material compatibility issues, and seal failures due to compression set and creep relaxation.

Method used

A closure flange sealing collar with an end wall and annular outer side wall that define an enlarged volume for a sealing gasket, allowing for effective sealing across a wider range of geometries and reducing the risk of seal failure due to increased gasket bulk and material compatibility.

Benefits of technology

The solution achieves effective seals against a variety of flange curl and flange pocket neck geometries, provides a more reliable seal by eliminating looseness, and allows for the use of a wider range of gasket materials compatible with different container contents.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A sealing collar for a reconditioned container having a closure flange replaces an original sealing gasket which has been lost or destroyed in the reconditioning process. The collar comprises an end wall with (a) a radially inner portion matching a surface profile of a flange curl of the closure flange, and (b) a radially outer portion which diverges from the flange curl surface profile and extends radially outward beyond the outer diameter thereof. An annular outer side wall and the radially outer portion of the end wall together define an enlarged volume occupied by a sealing gasket. When the collar is crimped over the flange curl, the sealing gasket is compressed to seal between a flange pocket neck and the flange curl outside diameter.
Need to check novelty before this filing date? Find Prior Art