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US 5,560,511 AGranted
Hermetically sealable reusable container
AssigneeThe United States of America as represented by the Secretary of the Army
InventorJohn L. McNerney
Life of this patent
Estimating the term…
Abstract
A device for housing toxic waste or toxic munitions including a vessel having a body flange and a removable cap that interfaces with the body flange to make a hermetic seal. A primary and a secondary O-ring are positioned between the cap and the body flange to ensure a leak-proof seal having an integrity of 1.times.10.sup.-6 He/sec at one atmosphere at standard temperature and pressure (STP).
Claims9
A container for storing toxic chemical materials, comprising:
- a vessel having a closed bottom and an open end for receiving a chemical material to be stored;
- a closure member located at the open end of the vessel and having a closure interfacing surface;
- a removable cap for hermetically sealing the open end of the vessel, said cap having an interfacing surface for mating with said closure interfacing surface;
- means defining a first groove in one of said interfacing surfaces;
- means defining a second groove in said one of said interfacing surfaces spaced apart from said first groove and positioned between said first groove and said vessel;
- a primary seal formed from a composition containing tetrafluoroethylene;
- a secondary seal formed of butyl rubber;
- said secondary seal being interposed between said interfacing surfaces and positioned in said first groove;
- said primary seal being interposed between said interfacing surfaces and positioned in said second groove for preventing stored toxic chemical materials from contacting and deteriorating said secondary seal;
- and means for sealing the removable cap to the closure member.
7 more elements
Dependencies are inferred from the claim text.