Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Reexamination Certificate
2007-05-07
2011-11-22
Gravini, Stephen M (Department: 3744)
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
C034S124000, C034S640000, C162S123000, C162S166000
Reexamination Certificate
active
08061055
ABSTRACT:
Web stabilizer particularly for one-sided flotation of a running web. The device includes two discharge slots which allow for increased draw down force, which flattens machine direction wrinkles in a floating web. There is a primary discharge slot and a second discharge slot spaced from and stepped down from the primary discharge slot, a first web support surface between the primary discharge slot and the secondary discharge slot, and a second web support surface downstream of the secondary discharge slot in the direction of web travel. An integral blower provides a supply of air that is uniformly distributed to the primary and secondary slots. Air discharged from the primary slot is gathered into the air stream of the secondary slot and creates an increased air cushion to provide greater support to the web and thereby remove machine direction web wrinkles caused by higher tension in light weight webs.
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Rocheleau Michael O.
Seidl Paul
Gravini Stephen M
MegTec Systems, Inc.
Nields, Lemack & Frame, LLC
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