Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Measuring – testing – or inspecting
Reexamination Certificate
2005-01-25
2005-01-25
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Measuring, testing, or inspecting
C264S410000, C264S488000, C264S492000, C264S040100
Reexamination Certificate
active
06846447
ABSTRACT:
Process for calibration of spectroscopic instrumentation for non-invasive monitoring of resin-loading of furnish-type wood materials, such as particles or fibers for particleboard or medium density fiberboard, respectively. Selection of ranges of wavelengths within a 350 nm to 2500 nm region by providing selection of spectrometers and sensors for wavelength ranges of 350-1000 nm, 1000 to 1800 nm, 1000 to 2500 nm, and 400 to 2200 nm, for use by engineered-wood manufacturing installations. Resin-loaded wood material is exposed to selected VIS/NIR energy and monitored as it moves on-line in relation to calibrated spectroscopic instrumentation; a sensor collects non-absorbed radiation energy reflected by the wood materials. Measurements are processed, in relation to pre-established calibration data, to determine whether the resin-loading is within manufacturing objectives; monitoring and feedback are used to maintain desired specifications.
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patent: 6461743 (2002-10-01), Tanzer et al.
Congleton Tyler G.
Mbachu Reginald A.
Dynea Chemicals Oy
Shanley and Baker
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