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:
Oct. 05, 1999
Filed:
Jun. 05, 1997
Applicant:
Inventors:
John A Heitmann, Jr, Raleigh, NC (US);
Thomas W Joyce, Raleigh, NC (US);
Assignee:
North Carolina State University, Raleigh, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 15 ; 134 21 ; 134 2214 ; 134 2219 ; 134 24 ; 134 26 ; 134 32 ; 162 72 ; 162199 ; 162274 ; 162275 ; 162278 ; 162D / ;
Abstract
A method of treating a felt to remove contaminants therein comprises the steps of providing a felt used in transporting paper webs, preparing an enzyme solution comprising an enzyme selected from the group consisting of a cellulase, a hemicellulase, and mixtures thereof, applying the enzyme solution to the felt for a first predetermined period of time, rinsing the felt with water, applying a solution of sodium hydroxide to the felt to remove the enzyme solution, and rinsing the felt with water to remove the sodium hydroxide solution thereby removing the contaminants in the felt.