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:
Jun. 06, 2000
Filed:
May. 06, 1998
Applicant:
Inventors:
Marc Savard, Sainte-Foy, CA;
Francedilla.ois Leger, Sainte-Foy, CA;
Assignee:
Forintek Canada Corp., , CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382110 ; 382141 ; 209518 ;
Abstract
To facilitate separation of lumber pieces that are of different species, an indicator liquid is sprayed on to a fresh cut end of each lumber piece to produce a characteristic reaction, e.g. based upon pH. After a suitable interval the coated ends of the lumber pieces are optically scanned, the scanned image being analyzed spectrographically to identify the species of the lumber piece, e.g. as between spruce and fir. The lumber pieces are separated accordingly so that further processing thereof, e.g. kiln drying can be done under optimal conditions for that species.