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US 5,443,891 AGranted
Low amplitude wave-board
AssigneeAlberta Research Council
InventorLars Bach
Life of this patent
Estimating the term…
Abstract
A low amplitude wave-board panel having improved bending strength and bending stiffness properties is provided. More specifically, the amplitude of the waves is substantially equal to, or less than half the thickness of said board. Preferably, the wave amplitude ranges from between 1/8" to about 1".
Claims9
A waveborad panel formed by compression and curing of a mat of wafers and binder in admixture, the waveboard panel comprising:
- a panel having a predetermined thickness;
- and, a plurality of waves defining an amplitude and a wavefront;
- wherein the amplitude of said waves is substantially equal to or less than half of the thickness of said board.
A process for making a low amplitude wave-board panel comprising:
- distributing a mat of loose binder-coated wafers between a pair of flexible screen members and placing the latter between press platens, said platens forming a plurality of spaced elongate rectangular members functional to form a wave in said panel wherein the amplitude of the wave is substantially equal to or less than half of the thickness of said panel;
- biasing the platens together vertically to compress the mat between the working surfaces of the platens;
- and
- curing the resin to thereby provide a low amplitude waveboard panel.
1 more element
Dependencies are inferred from the claim text.