Elmendorf Armin, Vaughan Thomas W, Etzold Roland: Textured wood panel. February 1, 1972: US3639200 (48 worldwide citation)

The invention relates to a ligno-cellulosic building board having a nonrepetitive textured surface on at least one side. This side consists of a layer of ligno-cellulosic particles with elevations and depressions, the specific gravity of the particles of the elevations being substantially the same a ...

Elmendorf Armin, Etzold Roland: Method of making a wood fiber board having a relief-textured surface. Elmendorf Armin, Townsend and Townsend, April 29, 1975: US3880687 (36 worldwide citation)

In obtaining a texture or a pattern on a wood fiber board by conventional procedures, as by means of a die, high pressures must be used so that the material of which the board is made is compacted and generally made denser and harder in the depressions of the textured surface. In the process of reli ...

Elmendorf Armin, Etzold Roland: Panel with decorative bark surface and method of making the same. Elmendorf Research, Townsend and Townsend, June 3, 1975: US3887415 (13 worldwide citation)

A panel formed from a substrate such as a ligno-cellulosic board including insulation board, softwood plywood and particle board, and a protective surface for the substrate comprised of bark chips. The surface is harder than the natural, weathered bark of trees and imparts a mottled and textured sur ...

Elmendorf Armin: Method of composing wide continuous bands of veneer. Elmendorf Research, Townsend and Townsend, September 17, 1974: US3835902 (3 worldwide citation)

A method of composing veneer strips to form a continuous band in which proximal edges of adjacent pairs of strips may not be parallel. The strips are moved along a predetermined path and are separated to present gaps therebetween. The gaps are filled with a filler comprised of wood particles coated ...