Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Reexamination Certificate
2006-04-11
2006-04-11
Gravini, S. (Department: 3749)
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
Reexamination Certificate
active
07024802
ABSTRACT:
Provided is an air flow structure for a dryer, which includes a drying fan, and an air guide having a bent and inclined shape so as to guide flow of a circulation air discharged by the drying fan. This air flow structure improves air circulation flow in the dryer, reduces noise generated in the drying procedure, and increases air volume introduced into a drying duct.
REFERENCES:
patent: 2451206 (1948-10-01), Ellis
patent: 2908086 (1959-10-01), Fuhring
patent: 5159766 (1992-11-01), Henig
patent: 6199296 (2001-03-01), Jewitt
patent: 6755278 (2004-06-01), Huhn et al.
patent: 60-96298 (1985-05-01), None
Birch & Stewart Kolasch & Birch, LLP
Gravini S.
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