Fire detector
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United States of America Patent
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-
Mar 18, 1986
Grant Date -
N/A
app pub date -
Feb 9, 1984
filing date -
Feb 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved fire detector appropriately vented to atmosphere is provided, the detector comprising a base supporting a diaphragm enclosing a space between the base and diaphragm, a shell secured to the base enclosing the diaphragm, and a fin for collecting heat from the ambient atmosphere, secured by a ferrule to the shell. A vent aperture is provided through the base from the space between the diaphragm and the base to the back of the detector and which detector is covered by a closure cap. The fin is secured to the shell by a ferrule by causing peripheral portions of the end of the ferrule proximate the central aperture of the fin through which the ferrule is inserted to be forced to be indented to cause metal from such peripheral portions to flow radially over portions of the fin.
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