Stephen Howard Peterson

US Patent:

7225558, Jun 5, 2007

Filed:

Jul 30, 2004

Appl. No.:

10/903562

Inventors:

Stephen Charles Hagen - Kennebunk ME, US
Stephen Bradford Peterson - Cape Elizabeth ME, US
Jeffrey Croteau - Portland ME, US
Richard Alan Parker - Cape Elizabeth ME, US

Assignee:

Metso Paper USA, Inc. - Biddeford ME

International Classification:

F26B 11/02

US Classification:

34124

Abstract:

A through-air device includes a permeable roll having a hollow interior and mounted for rotation about a longitudinal axis. At least one divider is located in the hollow interior so as to define a plurality of roll channels within the roll, the roll channels being positioned side-by-side along the longitudinal axis. A first housing bounds a first portion of the roll, and a second housing bounds a second portion of the roll. At least one partition is located in the second housing so as to define a plurality of housing channels within the second housing. Each one of the housing channels is aligned with a corresponding one of the roll channels. The device further includes structure for individually controlling airflow through each pair of corresponding roll channels and housing channels.