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US 5,487,484 AGranted
Device for the airtight closing of a package with fast open-and-shut system
AssigneeThomson-CSF
InventorsPhilippe Bonniau, Jean Chazelas
Life of this patent
Estimating the term…
Abstract
A closing device, for airtight closing of a package by use of a removable lid, has a facing lid fixedly joined to the package and springs made of shape memory alloy resting on the lid and the facing lid. The facing lid may be fixedly joined to the package by brackets or by other fixing mechanisms. These fixing mechanisms may include screws or may include a groove and tongue arrangement. The fixing mechanism may also include a ring made of a shape memory alloy forcing a flexible part of the facing plate against the package.
Claims8
A device for the airtight closing of fast open-and-shut packages;
- which comprises:
- a first lid fixed to an open face of a package, said package including an interior compartment;
- at least one shape memory alloy spring located outside said compartment and biasing the lid toward the compartment;
- and
- a facing lid fixedly connected to the package and facing the first lid wherein the springs are positioned between the first lid and the facing lid.
2 more elements
Dependencies are inferred from the claim text.