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.

Date of Patent:
Aug. 10, 2004

Filed:

May. 22, 2001
Applicant:
Inventors:

Denis John Albert, Tokoroa, NZ;

John Corrie Fleming Walker, Christchurch, NZ;

Ross Lindsay Dickson, North Canterbury, NZ;

Thomas Alan Clark, Rotorua, NZ;

Assignee:

Carter Holt Harvey Limited, Manukau City, NZ;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 7/06 ;
U.S. Cl.
CPC ...
D21F 7/06 ;
Abstract

The invention provides a method for predictively assessing one or more characteristics of wood pulp produced from solid wood. The method comprises the steps of determining the velocity of sound through the solid wood, and assessing characteristic(s) of wood fiber or wood pulp produced from the wood by reference to the velocity of sound through the solid wood. The method may also comprise the steps of causing a sound wave to be transmitted through the wood, determining the velocity of the sound wave through the wood, and comparing the result to stored information on fiber characteristic(s) versus sound velocity through the wood-type to determine the fiber characteristic(s) for the wood.


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