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US 7,017,413 B2Granted
Methods for quantitatively determining lengthwise shrinkage in wood products
AssigneeWeyerhaeuser Company
InventorsStanley L. Floyd, Mark A. Stanish
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention quantify lengthwise shrinkage to a higher degree of accuracy over currently known methods by employing reactive force values, such as stiffness measurements, in conjunction with motive force values, such as chemical composition, of the wood product.
Claims21
A method for quantifying at least one lengthwise shrinkage of a wood product, comprising:
- obtaining at least one first data value indicative of a reactive force component to lengthwise shrinkage, the first data value obtained at a measuring location along the wood product;
- obtaining at least one second data value indicative of a motive force component to lengthwise shrinkage wherein the motive force component to lengthwise shrinkage is chemical composition, the second data value obtained at the measuring location along the wood product wherein the second data value is a hemicellulose content measurement;
- and
- determining lengthwise shrinkage of the wood product based on the first and second data values.
1 more element
A method for quantifying lengthwise shrinkage of wood products, comprising:
- obtaining a wood product;
- obtaining a sound velocity measurement from the wood product at a first measuring location;
- obtaining a galactan measurement from a wood product at the first measuring location;
- and
- determining lengthwise shrinkage of the wood product based on the sound velocity measurement and the galactan measurement.
2 more elements
Dependencies are inferred from the claim text.