1985-03-05
1985-10-22
Yuen, Henry C.
Furnaces
Smokestacks
98 82, 98 661, 98 67, 98 60, 110322, F23L 1712
Patent
active
045481377
ABSTRACT:
An upstanding nipple is provided for downward telescoping over the upper end of a furnace flue pipe outlet end and the upper end of the nipple is secured through a central opening formed in a circular base plate over which a circular top plate is supported in vertically spaced relation by a cylindrical spacing member extending between and secured to the outer peripheral portions of the base and top plates. The spacing member includes diametrically opposite openings formed therein covered by screen panel portions and upwardly convergent baffle plates are disposed between the base and top panels with the lower marginal edges of the baffle plates anchored relative to the base plate and the upper marginal edges of the baffle plates terminating upwardly a spaced distance below the top plate and being spaced apart a distance generally equal to one-half the diameter of the nipple. An elliptical tubular shield is provided and telescoped over the spacing member with the major diameter defining portions of the shield spaced outwardly of the diametrically opposite openings formed in the spacing member. The major diameter defining portions of the shield are secured directly to the opposing diametrically opposite portions of the spacing member and the length of the tubular elliptical shield is substantially equal to the spacing between the base and top panels.
REFERENCES:
patent: 2660106 (1953-11-01), Gray
patent: 2976796 (1961-03-01), Anthony et al.
patent: 3361051 (1968-01-01), Fair et al.
patent: 3855910 (1974-12-01), Brinton et al.
patent: 4466340 (1984-08-01), Briner
Jacobson Harvey B.
Yuen Henry C.
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