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:
Feb. 09, 2010
Filed:
Nov. 23, 2007
Applicants:
Liheng Chen, Edmonton, CA;
Robert W. F. Wellwood, Edmonton, CA;
Inventors:
Liheng Chen, Edmonton, CA;
Robert W. F. Wellwood, Edmonton, CA;
Assignee:
Alberta Research Council Inc., Edmonton, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low density oriented strand board has an average density of less than about 1.5 times the density of wood species used in the board and a homogenous vertical density profile. Low density OSB may be formed by preheating the wood finish prior to pressing, controlling the moisture content such that the core layer has a higher moisture content than the face layers, or a combination of pre-heating and moisture content control.