Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2007-06-05
2007-06-05
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C083S365000, C250S559240
Reexamination Certificate
active
10391773
ABSTRACT:
The present invention provides a system and a method to grade a piece of wood and simultaneously to classify this piece of wood by allowing an examination of four longitudinal faces thereof, so as to determine optimal specifications for a subsequent use thereof such as shaving, trimming ends, and other applications. The system comprises a structure, a transversal conveyor, a vision unit and a processing unit. The vision unit is partly located above the conveyor in an inclined plane, collecting data on a lateral and upper longitudinal face of an object as the object moves with the conveyor, and partly located under the conveyor, at an angle therewith, collecting data from a complementary lateral longitudinal face of the object as well as from an inferior longitudinal face thereof, as the object moves with the conveyor. The system allows classification of wooden pieces according to predetermined standards, at a rate of 200 pieces per minute with a margin of error less than or equal to 2%.
REFERENCES:
patent: 3187185 (1965-06-01), Milnes
patent: 3802774 (1974-04-01), Eschler et al.
patent: 4149089 (1979-04-01), Idelsohn et al.
patent: 4221974 (1980-09-01), Mueller et al.
patent: 4541722 (1985-09-01), Jenks
patent: 4803371 (1989-02-01), Durland
patent: 5056922 (1991-10-01), Cielo et al.
patent: 5412220 (1995-05-01), Moore
patent: 5960104 (1999-09-01), Conners et al.
patent: 6618155 (2003-09-01), Metcalfe et al.
patent: 6757058 (2004-06-01), Carman et al.
patent: 6825936 (2004-11-01), Metcalfe et al.
patent: 2111950 (1994-09-01), None
Castonguay Martin
Hubert Yvon
Comact Optimisation Inc.
Luu Thanh X.
Nixon & Vanderhye
Yam Stephen
LandOfFree
System and method for classification of timber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for classification of timber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for classification of timber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3885890