HOOD ASSEMBLY FOR USE WITH A PROTECTIVE SUIT
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Feb 10, 2011
filing date -
Feb 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hood assembly for a protective suit has a hood (41) and a seal (10). The seal extends about the rim of the hood and comprises a sheet composed partly or entirely of resilient material. The sheet is provided with a pocket (14). The pocket (14) has an inner layer (16) for contacting a contoured surface and an outer layer (18), separated by a filler medium (22). The outer layer is curved about the filler medium when no stretching force (26) is applied to the sheet, and as the sheet is subjected to a stretching force a first component of the stretching force is transmitted along the outer layer. As the sheet is subjected to a stretching force the curvature of the outer layer is reduced, so that a pressing force (28) is transmitted from the outer layer, through the filler medium, onto the inner layer. The pressing force presses the inner layer against the contoured surface, so as to reduce fluid flow between the inner layer and the contoured surface.
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