The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1986
Filed:
Feb. 14, 1986
Derek Barnes, British Columbia, CA;
MacMillan Bloedel Limited, Vancouver, CA;
Abstract
A waferboard panel is made from long wafers to have the same strength properties as plywood. The panel comprises at least three layers of wood wafers having an initial aggregate specific gravity, less than about 0.6 oven dry weight with volume at 12% moisture content, the panel having face layers on outside surfaces and at least one core layer. The wafers in the face layers have a mean orientation not greater than about 10.degree., and lengths of at least about 6 inches, preferably 12 inches. Average widths of the wafers in the face layers are in the range of about 0.3 to 2.0 inches and the panel has an oven dry wood density in the range of about 28 to 45 lbs. per cu. ft. with an MOR to density ratio of at least about 120 and an MOE (M) to density ratio of at least about 40.