Inflatable packer with roughened mandrel
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United States of America Patent
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Oct 3, 1989
Grant Date -
N/A
app pub date -
Jan 24, 1983
filing date -
Jan 24, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An inflatable packer including a tubular mandrel, a pair of collars secured to the mandrel, and an inflatable sleeve connected between the collars about the mandrel. The exterior surface of the mandrel underlying the sleeve is roughened to increase the coefficient of friction between the mandrel and the sleeve.
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