Boise Cascade Corporation

Alan L Lambuth

Comer Brown

An electrically conductive medium or high density lignocellulose particle board useful in the manufacture of flooring, wall paneling, and furniture functioning to establish static-free environments for the manufacture and operation of microcomputers and related equipment and protection from static electrical discharge problems generally. The particle boards comprise dry-formed, hot-consolidated mixtures of

Electrically conductive lignocellulose particle board

An assembly for connecting the wooden members of a truss is disclosed, characterized by the use of a combination of adhesive and a connecting plate. The connecting plate is formed of metal and includes a plurality of nail-like projections which extend from and normal to a planar portion of the plate. A layer of adhesive is applied to the extremities of all of the projections. The wooden members to be joined are arranged in a desired configuration and the adhesive-covered projections of the plate are driven into adjoining members. In addition to the nail-like bond between the plate and the truss members, an adhesive bond is formed between the metal projections and the wood. The resulting joint has increased resistance to tensile, shear, and rotational forces.

Adhesive/nail plate truss assembly

A laminated wooden structural assembly is disclosed comprising at least one multi-ply wooden web member formed of a pair of spaced outer layers and at least one inner core layer bonded between the outer layers, and at least one wooden flange member arranged adjacent one longitudinal edge portion of the web member. The web and flange members are connected by joint means including a straight machine tapered longitudinal slot contained in one surface of the flange member, and a machine tapered longitudinal edge portion of the web member that is inserted with a friction fit into the slot. Each inner core layer of the web member is arranged with its grain direction extending toward the longitudinal edge portion of the web member, the outer layers being arranged with their grain directions extending parallel to the flange member. The flange member is arranged with its grain direction extending in a direction longitudinally and parallel with the grain direction of said web outer layers.

Laminated wooden structural assembly

An aqueous polyisocyanate-lignin adhesive for use particularly in the manufacture of wood composition board comprises in admixture with each other an organic polyisocyanate and the lignin product resulting from the chemical pulping of lignocellulose.

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Boise, ID, United States of America

Alan L Lambuth