Air flow balancing fire damper

Details Air flow balancing fire damper Air flow balancing fire damper

1984-01-12

1985-05-28

Yeung, James C.

Stoves and furnaces

Stoves

Cooking

98 86, 1262875, 137 75, E05F 1520

Patent

active

045193010

ABSTRACT:
This device is for balancing air flow and the dispersion of air around duct throats, and is particularly adapted for already manufactured filter modules and ceiling air conditioning diffusers, where concern for spreading fire through the openings is involved. Primarily, it consists of a core assembly for the filter module hood. The assembly includes a mounted bolt and a pair of perforate discs, which will serve as a flame barrier automatically, when fire is present, and the assembly further includes a low melting point solder for its automatic operation.

REFERENCES:
patent: 3981317 (1976-09-01), Strulik et al.
patent: 4044785 (1977-08-01), Larsen
patent: 4333392 (1982-06-01), Nailor et al.
patent: 4397223 (1983-08-01), Maxson
patent: 4432272 (1984-02-01), Van Becelaere

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