Indoor gun firing range enclosure having a ventilation system

Details Indoor gun firing range enclosure having a ventilation system Indoor gun firing range enclosure having a ventilation system

1978-01-16

1979-08-21

Yuen, Henry C.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

98 36, 55138, 89 1E, 35 25, 273102R, F24F 1300

Patent

active

041649010

ABSTRACT:
An indoor gun firing range enclosure with a ventilation system for removing particulate matter, such as lead or other heavy metals, and unburned gunpowder, plus gaseous contaminants such as carbon monoxide, from the atmosphere within the enclosure to make the atmosphere within the enclosure safer for persons using the firing range.
In addition, a method of ventilating the indoor firing range enclosure for the same purpose.
Both the ventilation system and method of ventilating contemplate removing a portion of the air from within the enclosure and after removing particulate matter from this air, exhausting it to the out-of-doors. Concurrently, another portion of the air is removed from the interior of the enclosure for recirculation into the enclosure after particulate matter is removed from it. Out-of-doors air is also mixed with the recirculated portion of the air to make up for some of the air exhausted from the enclosure to the out-of-doors.

REFERENCES:
patent: 2827266 (1958-03-01), Ruff
patent: 2990912 (1961-07-01), Cole
patent: 3048094 (1962-08-01), Bailey
patent: 3068775 (1962-12-01), Zehnder
patent: 3143952 (1964-08-01), Simons
patent: 3722182 (1973-03-01), Gilbertson
patent: 3802099 (1974-04-01), Mell et al.
patent: 3988131 (1976-10-01), Kanazawa et al.
patent: 4114521 (1978-09-01), Busch

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