Dryer venting apparatus, techniques and installation kit

Details Dryer venting apparatus, techniques and installation kit Dryer venting apparatus, techniques and installation kit

2004-07-02

2008-09-09

Gravini, S. (Department: 3749)

Drying and gas or vapor contact with solids

Process

With nondrying treating of material

C034S138000, C034S235000, C285S192000

Reexamination Certificate

active

07421803

ABSTRACT:
Venting through the walls of an interior room of a building to an external environment is facilitated by apparatus and techniques for mounting an in-wall unit for interfacing with the exhaust ports of equipment, such as dryers, using flexible pipe. The in-wall unit connects with venting pipe, such as stovepipe, for connecting to the external environment through an exterior surface, such as a roof. If a roof exhaust is desired, a vent assembly is provided that contains a flap that automatically closes when the exhaust flow terminates, but opens when venting is underway. The flap is removable so that cleanout of path between the in-wall unit and the room exhaust can easily occur.

REFERENCES:
patent: 465561 (1891-12-01), Hood
patent: 3856036 (1974-12-01), Drews et al.
patent: 4121351 (1978-10-01), Kapke
patent: 4122612 (1978-10-01), Mrofchak
patent: 5584129 (1996-12-01), Williamson
patent: 6443834 (2002-09-01), Berger
patent: 6923942 (2005-08-01), Shirk et al.
patent: 2002/0149201 (2002-10-01), Pichotta

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