Fusible link assembly

Details Fusible link assembly Fusible link assembly

1989-04-14

1990-06-26

Dority, Carroll B.

Stoves and furnaces

Dampers

Fusible release

137 74, 137 75, F23N 304

Patent

active

049362879

ABSTRACT:
A fire damper or the like having butterfly-type gas flow control blades includes a heat responsive blade release assembly that incorporates a standard fusible link accessible from externally of the assembly. The fusible link holds together pivoted side plates of a housing from which extends a pair of arms normally holding the blades in their open positions. When the link melts, the side plates move apart, allowing the arms to open and release the blades. The assembly is also adjustable to vary the extent to which the blades open.

REFERENCES:
patent: 3076469 (1963-02-01), Averill
patent: 4263930 (1981-04-01), McCabe
patent: 4295486 (1981-10-01), McCabe
patent: 4366830 (1983-01-01), Becelaere
patent: 4467824 (1984-08-01), Strulik et al.

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