Artificial airway device
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United States of America Patent
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Apr 30, 2002
Grant Date -
N/A
app pub date -
Jul 22, 1999
filing date -
Nov 28, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speaker cone assembly comprises a felted paper-type cone fabricated of a composite material and a molded surround. The composite cone material contains natural fibers and synthetic fibers, where the synthetic fibers are able to chemically bond to material of the surround, thereby forming an improved bond during the molding procedure by which the surround is formed and attached to the cone. The method of preparing the composite cone material includes formulating and refining the natural fibers, preferably before adding the synthetic fibers.
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Family
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