Abstract: A multiple cavity (30a, 30b) mold die (10) and method for molding binder coated wood flakes (12) into multiple three dimensionally curved wood strand parts. Vertical walls (28, 32) shear a felted mat (11) of binder coated wood flakes as the mold is closed.
Abstract: Mold apparatus for molded wood strand three-dimensionally carved articles of manufacture using at least one hole punch comprised of a base and a funnel shaped hole-defining portion having a funnel angle of 20 degrees or greater to vertical for producing molded holes at angles of 20 degrees or greater to vertical, to facilitate insertion of items such as a T nut within the molded hole in an assembly-line like fashion.
Abstract: Wood strand molded parts (14) having three-dimensionally curved of bent channels (15) in a curved or bent part (15), curved or bent to form an inside angle of about 150° or less, and a method for making such parts.
Abstract: A to be molded wood flake (12) or strand part is shown, having sharp definition in a bend in the part. The method of making such part includes using fines (13) to sharply define the bends of the part.
Type:
Grant
Filed:
March 14, 2001
Date of Patent:
January 25, 2005
Assignee:
GFP Strandwood Corp.
Inventors:
Bruce A. Haataja, John Quinn, Blair Froseth
Abstract: A mold for forming wood flakes into a molded wood flake part including a top mold die and a bottom mold die. The top mold die includes a punch for forming a hole in the part, and the bottom mold die includes a punch receiving aperture. The punch includes a tapered upper portion and a cylindrical lower portion for forming the hole in molded parts of varying thicknesses. The punch includes a tapered upper section defining an upper opening of a first radius in a top surface of the molded part and a cylindrical lower section defining an opening of a second radius in a bottom surface of the molded part. The cylindrical lower portion is sufficiently long that the bottom opening in the hole in each part formed will have the same second radius.