Patent Number: 6,293,178

Title: Pyrotechnic launch tube

Abstract: A pyrotechnic launch tube made using fiberglass reinforced polymer (FRP) includes a cylindrical FRP tube having an inside wall, where the inside wall has a circumferential groove near a lower end of the tube. A bottom member made of FRP is molded for engagement with the tube at the groove. After forming the tube and the groove, a mold having a concave surface is placed inside the tube adjacent to the groove, and resin-coated fiberglass matting is laid on the mold. A fibrous material is placed over the fiberglass matting and a nonporous bag seals the fiberglass matting. A vacuum is drawn in the bag, and atmospheric air pressure compresses the fiberglass matting, forcing it into the groove. A counter mold can be used instead of vacuum setting to compress the fiberglass matting. The bottom member has a convex surface, and the convex surface and the inside wall of the tube define a chamber for receiving pyrotechnics.

Inventors: See; Samuel A. (Goodrich, TX)

Assignee: Champion Fiberglass, Inc.

International Classification: F41A 21/00 (20060101); F41A 21/02 (20060101); F41A 021/00 ()

Expiration Date: 09/25/2018