Expansible seal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 13, 1988
Issued Date -
N/A
app pub date -
Oct 13, 1987
filing date -
Dec 19, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal in an aperture, e.g., a duct, is made by foaming a foamable substrate within an envelope in the aperture, to expand the envelope, which desirably has sealant or adhesive on its outer surface, to conform it into sealing engagement with the aperture. The envelope is closed and is of wraparound configuration so as to seal a large variety of aperture sizes, whether empty or containing objects, such as cables.
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Cited Art Landscape
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