Drying and gas or vapor contact with solids – Process – Gas or vapor contact with treated material
Reexamination Certificate
2005-06-28
2005-06-28
Gravini, Stephen (Department: 3749)
Drying and gas or vapor contact with solids
Process
Gas or vapor contact with treated material
C034S122000, C034S456000, C162S207000
Reexamination Certificate
active
06910283
ABSTRACT:
A throughdrying process and system for the manufacture of a tissue web conveys a fibrous web of cellulose fibers through a throughair drying station that includes one or more throughair dryers. The throughair drying station is supplied with a heated drying medium from a source. After drying the web, the drying medium is conducted away from the throughair drying station as moisture laden exhaust air that is collected, dried, and at least partially recirculated back to the throughair drying station as a supplement to the source of heated drying medium, thereby reducing the load on the heated drying medium source.
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US 6,134,809, 10/2000, Stipp (withdrawn)
Dority & Manning
Gravini Stephen
Kimberly--Clark Worldwide, Inc.
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