Pressurizable envelope and method
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United States of America Patent
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Mar 6, 1990
Grant Date -
N/A
app pub date -
Feb 5, 1988
filing date -
Feb 5, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An internally pressurizable lightweight high tensile strength multi-layered envelope is provided. An outer barrier layer of elastomeric semi-permeable material is mechanically bonded at a multiplicity of cites where substantially the entire distal surfaces of a double-walled drop thread linked fabric. The composite structure defines a substantially flat thin lightweight product which is capable of withstanding very substantial pressures.
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