Flow enhancing air duct and grill for laundry dryer

Details Flow enhancing air duct and grill for laundry dryer Flow enhancing air duct and grill for laundry dryer

2007-12-19

2010-02-23

Lu, Jiping (Department: 3743)

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

C034S595000, C034S139000

Reexamination Certificate

active

07665228

ABSTRACT:
A flow enhancing air grill for a laundry dryer includes a plurality of apertures through which air flows from a rotatable drum to an air duct. The air grill is positioned over the air duct and extends beyond the air duct. In addition, a primary surface of the air grill is positioned in spaced overlying relationship to a front bulkhead surface so as to form a gap between the primary air grill surface and the underlying front bulkhead surface. The air grill may extend arcuately in conformance to the circular shape of an access port of the dryer in which it is positioned, up inclined wall surfaces of the access port. The arrangement reduces airflow obstruction by allowing adequate air flow in the event the portion of the air grill directly overlying the air duct inlet becomes covered by items of the laundry load.

REFERENCES:
patent: 3099542 (1963-07-01), Scoyk
patent: 3304624 (1967-02-01), Czech
patent: 3471940 (1969-10-01), Smith
patent: 4103433 (1978-08-01), Taylor
patent: 4726125 (1988-02-01), Pellerin
patent: 4899464 (1990-02-01), Carr et al.
patent: 5317816 (1994-06-01), Kadakia
patent: 7069669 (2006-07-01), Park et al.

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