Ammunition and explosives – Pyrotechnics – With support means
Reexamination Certificate
2002-03-04
2003-05-13
Nelson, Peter A. (Department: 3644)
Ammunition and explosives
Pyrotechnics
With support means
Reexamination Certificate
active
06561102
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a firework device, and more particularly to a floatable firework device.
2. Description of the Related Art
Fireworks are used in the evening, and produce light, smoke, and noise for providing a festive mood. Conventional fireworks are hung or are placed on the ground, and are not designed to float on a water surface.
SUMMARY OF THE INVENTION
The object of this invention is to provide a floatable firework device.
According to this invention, a floatable firework device includes a hollow base for fitting an explosive therein, a waterproof fuse, and a tubular buoyancy member sleeved fixedly around an upper portion of the base. The base has a center of gravity at a lower end portion thereof. As such, the firework device can float on a water surface, with a flame-spraying upper end slit in the base being disposed above the water surface.
REFERENCES:
patent: 825419 (1906-07-01), Rose
patent: 2331439 (1943-10-01), Thiebault
patent: 2736044 (1956-02-01), Lewis
patent: 3060854 (1962-10-01), Maretti
patent: 3762327 (1973-10-01), Murray et al.
patent: 3954059 (1976-05-01), Langseth
patent: 4069762 (1978-01-01), Maury
patent: 6230629 (2001-05-01), Doctor et al.
patent: 1121609 (1980-06-01), None
Keefer Timothy J.
Nelson Peter A.
Wildman Harrold Allen & Dixon
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