Invention Grant
- Patent Title: Utilization of coloration to improve the detection of “hit or miss” defects when using scanner equipment and an automated saw to remove defects in wood pieces
- Patent Title (中): 利用色彩来改善使用扫描仪设备和自动锯切割木屑缺陷时发现的“碰撞或缺失”缺陷
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Application No.: US11866181Application Date: 2007-10-02
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Publication No.: US07926524B2Publication Date: 2011-04-19
- Inventor: Benoit Risi
- Applicant: Benoit Risi
- Applicant Address: CA Cap St-Ignace, Quebec
- Assignee: Prolam, Societe En Commandite
- Current Assignee: Prolam, Societe En Commandite
- Current Assignee Address: CA Cap St-Ignace, Quebec
- Agency: Merchant & Gould P.C.
- Main IPC: B27M1/00
- IPC: B27M1/00

Abstract:
In a wood processing plant, planks are typically split into strips and then passed through an automated cross-cutting saw station to remove defects such as knots, cracks or flash. One defect which also occurs is the hit and miss defect caused by a planer and/or a sander. In order to improve the performance of the cross-cutting saw station, color is applied to the wood prior to being planed and sanded. The cross-cutting saw station is then modified to optically inspect the wood for the presence of color, indicating a hit and miss defect, and to remove the portions of the wood containing color.
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