Fuse
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United States of America Patent
Stats
-
May 30, 1995
Issued Date -
N/A
app pub date -
Oct 12, 1993
filing date -
Jul 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved compact fuse has a fusible metal wire stretched between a pair of metal terminals. The wire and the portion of the terminals to which the wire is connected are enclosed in an envelope made of insulation material. The ends of the terminals protrude outside the envelope. The envelope is filled with silicon cellular resin to cover the wire and create many sectioned spaces that dissipate the thermal energy generated when the wire melts from overcurrent, thereby preventing damage to the envelope. When heated by vaporization of the fusible metal wire, the silicon cellular resin generates byproducts which rapidly extinguish the arc.
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