Appeal 2006-3058
Application 10/386,070
4) Material entering cavity 35 travels through a heating zone 41
spaced upstream from burner head 43 and then through a
mixing zone 49 spaced downstream from the burner head 43.
Green, 5:50-59.
5) The heating zone 41 includes a drying zone 123 and
combustion zone 125. Green, 7:7-8.
6) The mixing zone 49 extends from the discharge end 33 of
the rotary drum 3 to the vicinity of, but short of, the burner head
43. Green, 5:55-57.
7) “Radially outward extremities of the mixing zone 49 are
bounded by the wall 17 of the drum 3, and radially inward
extremities of the mixing zone 49 are bounded by the secondary
air tube 111.” Green, 8:14-17.
8) “[T]he mixing zone 49 and materials being processed in the
mixing zone 49 are isolated from the flame 101 and the hot gas
stream. . . . [T]he term ‘isolated’ . . . includes the inadmission
of undesirable effects to the mixing zone 49 and to materials
therein, such as air movement through the mixing zone 49.”
Green, 9:20-30.
9) “Due to the elimination of air movement through the mixing
zone 49, any volatile components vaporized from the asphaltic
components quickly condense within, and do not leave, the
mixing zone 49 thereby avoiding burdening the pollution
control equipment 73 or rising production of blue-smoke
contamination.” Green, 9:35-40.
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