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:
Sep. 03, 2002
Filed:
Jul. 27, 2001
Applicant:
Inventors:
Dean A. Rulis, Banks, OR (US);
Robert E. Edwards, Jr., Banks, OR (US);
Assignee:
Wilbanks International, Inc., Hillsboro, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/54 ;
U.S. Cl.
CPC ...
D21F 1/54 ;
Abstract
Papermaking apparatus is disclosed having variable dewatering devices with moveable elements which engage the conveyor carrying paper stock and are adjustable to vary their operating characteristics. A variable pulse turbulation blade with an adjustable in-going angle is provided with a cam-operated adjustment device that maintains the blade height constant while adjusting the in-going angle to prevent fiber clumps and to provide the paper sheet with a more uniform consistency. The turbulation blade may have a plurality of flats disposed at different angles or multiple radii on its leading portion.