Pressure-resistant buoyancy material
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United States of America Patent
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-
Jul 1, 1986
Grant Date -
N/A
app pub date -
Mar 21, 1985
filing date -
Nov 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure-resistant buoyancy material, comprising pressure-resistant hollow elements, a syntactic foam, and an empty space intervening between the pressure-resistant hollow elements and the syntactic foam, communicating with the outside of the buoyancy material. The pressure-resistant hollow elements are retained in a freely movable state in the empty space.
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