Abstract: An aerodynamic forming hood is provided for supplying a substantially uniform distribution of fibers in a downward laminar airstream for the deposition of the fibers on one or more forming surfaces. The hood is formed by a rectangular housing having opposed elongated downwardly diverging side walls and short downwardly diverging end walls. The housing has a smaller rectangular open top end through which a supply of fibers is released in an airstream which enters into the housing. The forming surfaces are disposed at a larger bottom forming end of the housing. The side walls and end walls in the top part of the hood are provided with elongated horizontal apertures.
Type:
Grant
Filed:
September 13, 1995
Date of Patent:
July 30, 1996
Assignees:
Groupe Laperri ere et Verreault, Cascades Inc.
Inventors:
Serge Cadieux, Yvon L'Heureux, St ephane St-Cyr, Berthier Roy, Scott L. Gamble