Vented fire detector with improved fin connection

Details Vented fire detector with improved fin connection Vented fire detector with improved fin connection

G - Physics

08

B

340/160

G08B 17/06 (2006.01) H01H 37/76 (2006.01)

Patent

CA 1225133

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.

506039

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