This invention, the Pneumatic Launcher, is an improved, compressed inert gas powered, launching system for the airborne delivery of soft promotional items to persons in an arena or stadium environment. It is manually operable by one person. Receiving its power from a tank of compressed inert gas (us
This invention, the Pneumatic Launcher, is an improved, compressed inert gas powered, launching system for the airborne delivery of soft promotional items to persons in an arena or stadium environment. It is manually operable by one person. Receiving its power from a tank of compressed inert gas (usually nitrogen) fitted with a regulator and a three way manifold with two air lines and a relief valve, the unit has two hoses attached to its rear housing plate. One line fills the accumulator tank while the auxiliary line insures the pneumatic trigger always has gas pressure to complete the firing cycle. A ball valve of 11/2or larger releases the volume of gas from the accumulator tank quickly and completely, much more so than solenoid operated valves by virtue of the pneumatic air ram mechanism attached to the valve stem by a balanced cam type “T”shaped handle assembly. The released gas is channeled through a 180°curved tube into an expansion chamber that uses thin metal vanes to spin the gas as it approaches the barrel, thus allowing the lightest of objects to overcome air drag as best possible upon exiting the barrel. The loading and firing movements of the Pneumatic Launcher can be performed with one hand while the other, with the use of a shoulder strap, supports and balances the unit. As the handle on the sliding breach cover is moved forward, the barrel is tilted down for safety during loading, and as the handle is pulled back the barrel tilts up into normal ruing position. As the operator\s hand moves to the firing button, the opening in the housing allows for a firm grip in a central balanced position on the unit so that final aiming can be quickly achieved. The Pneumatic Launcher can put a beverage insulator in a 12″circle at 50 feet or a soft ball in a 36″circle at 250 feet under normal circumstances.
대표청구항▼
A compressed gas powered launching device for the delivery of items comprising: a source of compressed gas; an accumulator tank with an inlet connectable to said source of compressed gas, and an outlet to release gas therefrom; a barrel which is adapted to receive items to be launched, with an inlet
A compressed gas powered launching device for the delivery of items comprising: a source of compressed gas; an accumulator tank with an inlet connectable to said source of compressed gas, and an outlet to release gas therefrom; a barrel which is adapted to receive items to be launched, with an inlet to receive launching gas, and a muzzle through which items are expelled; said accumulator tank and barrel being connected through a gas travel path; a valve system to allow an operator to control release of gas from the accumulator tank to the barrel, said valve system comprising: a valve located in said gas travel path between said accumulator tank outlet and said barrel inlet, said valve having a rotary actuator movable between a first rotational position in which gas flow is blocked, and a second rotational position in which gas flow is permitted; a cam attached to said valve rotary actuator; a gas operated ram having a ram cylinder located a fixed distance from said valve, and a protruding linear actuator, said ram cylinder including a first port which, when pressurized by gas, causes said actuator to translate to a first linear position, and a second port which, when pressurized by gas, causes said actuator to translate to a second linear position; said linear actuator connected to said cam such that when said actuator is in said first linear position, said cam is in said first rotational position, blocking gas flow, and when said actuator is in said second linear position, said cam is in said second rotational position, permitting gas flow; a switch means to allow an operator to control the valve position, said switch means including an inlet connected to a source of compressed gas, and means to direct said compressed gas to either the first port or second port of said ram cylinder to control the position of the linear actuator.
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