Fusee cap closure
AssigneeOlin Corporation
InventorPerry Kay Spangler
Life of this patent
Estimating the term…
Abstract
A closure for a fusee which comprises a body of pyrotechnic material which is contained in a main paper tube and has a primed igniting end surface. The primed end is covered by a secondary paper tube having a wood button insert on the outer end surface of which is deposited scratch mix. The secondary paper tube is secured to the main paper tube by a layer of hot melt which can be manually broken to remove the secondary paper tube from the main paper tube. The secondary paper tube is covered by a paper cup having an integral pressure ring. The cup is secured to the secondary paper tube by a layer of hot melt which can be manually broken to remove the paper cup from the secondary paper tube.
Claims1
A closure for a fusee having a cylindrical mass of pyrotechnic material encased in a main paper tube and having an end surface upon which is deposited an ignition coating of primer material, said closure comprising:
- a. an open-ended paper tube telescoped over said main paper tube and extending beyond said primer-coated end surface of said pyrotechnic material, said open-ended paper tube containing a wooden insert which is secured to said open-ended paper tube and which overlies said primer-coated end surface of said pyrotechnic material, an outer end surface of said wooden insert being coated with a layer of scratch mix, and said open-ended paper tube being releasably secured to said main paper tube with an adhesive material;
- and
- b. a paper cup having a spun-in closed end, said cup being telescoped over said open-ended paper tube with said spun-in closed end overlying said layer of scratch mix, said paper cup being formed with an inwardly crimped annular pressure ring on its side wall for frictionally engaging said open-ended paper tube, and said paper cup being releasably secured to said open-ended paper tube with an adhesive material.
Dependencies are inferred from the claim text.