Stack draft stabilizing device

Details Stack draft stabilizing device Stack draft stabilizing device

1981-06-25

1983-08-09

Makay, Albert J.

98122, F23L 1702

Patent

active

043972250

ABSTRACT:
The present invention involves a draft stabilizing device mounted at the exit end of a draft vent or stack. The device is constructed from first and second cap members made in the form of open-bottomed cones which are substantially broader at their bases than they are high. The cones are joined together at their edges with their axes aligned. The lower cone has a large stack inlet opening at its apex which is connected to a stack. The lower cone also includes a plurality of outlet openings around its periphery. The area of the outlet openings exceeds the cross-sectional area of the stack.

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patent: 2017562 (1935-10-01), Brown
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patent: 3315586 (1967-04-01), Marrapese et al.
patent: 3361051 (1968-01-01), Fair et al.
patent: 3685426 (1972-08-01), Roja

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