The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2008
Filed:
Aug. 20, 2004
Applicants:
Christopher A. Mann, Marysville, WA (US);
Christopher Q. Tveter, Auburn, WA (US);
Inventors:
Christopher A. Mann, Marysville, WA (US);
Christopher Q. Tveter, Auburn, WA (US);
Assignee:
Weyerhaeuser Company, Federal Way, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Dried, singulated cellulose pulp fiber is produced by introducing wet pulp steam and air into a jet dryer. The air is heated to a temperature of 250° C. to 600° C. Steam is injected at a nozzle pressure of from 344 KPa (50 psig) to 4,137 KPa (600 psig). The pulp is removed from the jet dryer and separated from the air. The product formed has advantageous properties such as low fines count, improved kink curl and twist, and high permeability.