| 摘要 |
A closure for pressure vessels including a resilient seal ring having an outer lip and an inwardly turned flange angularly disposed to the outer lip whereby pressure within the vessel is exerted through an opening in the seal ring to urge the seal ring into positive sealing relation with the vessel around an opening in the vessel. The closure member has a seal ring receptacle having a plurality of anchor members secured thereto, said anchor members having surfaces engageable with slip rings to urge the slip rings into gripping engagement with a portion of the vessel.
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