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US 4,665,309 AGranted
Self heating gasket for hermetically sealing a lid to a box
AssigneeMetcal, Inc.
InventorRodney L. Derbyshire
Life of this patent
Estimating the term…
Abstract
The lid is hermetically sealed to an associated box by a gasket in the form of a sealant covered temperature autoregulating heater.
Claims7
A gasket for hermetically sealing a lid to a box without evolving deleterious gases and permitting subsequent removal and reapplication of the lid, said gasket comprising
- a temperature autoregulating heater having a configuration of the entire contacting surfaces of the lid and the box, and
- means adapted to connect said heater to a source of alternating current.
A sealed container comprising
- a container having a plurality of walls with end surfaces, having inner and outer edges,
- a lid covering said end surfaces and the interior space defined by said walls, and
- a gasket lying between said end surfaces and said lid and having an outer periphery substantially defined by the outer edges of said end walls,
- said gasket being an autoregulating heater.
1 more element
Dependencies are inferred from the claim text.