A differential pressure type inflating device, adapted for fast inflating the devices that need inflating, comprises a gas container, a relief valve, a gas nozzle, a pipe joint, a switch valve, and a relief pipe. When external high pressure gas enters the gas container and renders the gas pressures in the gas container and the relief pipe reaching a balance condition, the switch valve can be pressed to generate pressure drop in the relief pipe, which launches the relief valve and discharges the high pressure gas in the gas container from the gas nozzle. In this design, the gas container, relief valve, gas nozzle, relief pipe, and pipe joint are connected with screwing structures, so as to achieve the function of easy assembling.

An air distribution device for a dual barrel air gun is disclosed that routes air or other gases exhausted from an air gun tank to a select one of the air gun barrels which allows the user to fire a follow up shot with less delay. More specifically, the device of the present invention allows the user to control the routing of air to either barrel of the air gun through the use of a stem selector, a first transfer port and a second transfer port.

A valve body used in a shooting mechanism of an air gun includes a hollow valve body air chamber, a bottom portion of the chamber is detachably closed with a fit lid. A valve body cover is attached to the valve body. The valve body cover includes unit covers that are joined together. The unit covers include a lateral portion forming a part of the valve body cover and a joint. A unit cover bottom portion forms a part or all of the bottom portion of the valve body cover. When the valve body is housed in the unit covers, the unit covers are attached to the circumference of the valve body, and the bottom portion of the valve body cover is closed and may cover the lid.

A valve body used in a shooting mechanism of an air gun includes a hollow valve body air chamber, a bottom portion of the chamber is detachably closed with a fit lid. A valve body cover is attached to the valve body. The valve body cover includes unit covers that are joined together. The unit covers include a lateral portion forming a part of the valve body cover and a joint. A unit cover bottom portion forms a part or all of the bottom portion of the valve body cover. When the valve body is housed in the unit covers, the unit covers are attached to the circumference of the valve body, and the bottom portion of the valve body cover is closed and may cover the lid.

Of the type actuated by a trigger (9) having a support part (14), which defines a housing (1) which comprises at least one air inlet (2,12), at least one outlet (3), characterised in that it comprises: a first body (5), as a valve, which, when in a rest position, blocks the air outlet (3); a second body (6), as a piston, which partially encloses the first body (5), said second body (5) being blocked by the trigger (9) when in a rest position, a first elastic means (8), arranged in the housing (1), between the second body (6) and the support part (14), a slot (10), formed in the first body (5), and a pin (11), crossing the slot (10), and which fits in certain holes (13) formed in the second body (6).

Of the type actuated by a trigger (9) having a support part (14), which defines a housing (1) which comprises at least one air inlet (2,12), at least one outlet (3), characterised in that it comprises: a first body (5), as a valve, which, when in a rest position, blocks the air outlet (3); a second body (6), as a piston, which partially encloses the first body (5), said second body (5) being blocked by the trigger (9) when in a rest position, a first elastic means (8), arranged in the housing (1), between the second body (6) and the support part (14), a slot (10), formed in the first body (5), and a pin (11), crossing the slot (10), and which fits in certain holes (13) formed in the second body (6).

A modular light gas accelerator includes a first stage having a chamber having a rear portion and a discharge portion and a barrel located inside the chamber. The barrel has a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the chamber. A piston is slidingly located inside the barrel proximate to the rear port and is adapted to be propelled through the barrel and out of the discharge port. A second stage includes a receiver adapted to receive the piston from the discharge port. The receiver has a receiver passage. A frangible member extends across the receiver passage. A projectile is located downstream of the frangible member. The projectile is adapted to travel along the receiver passage. A target chamber is located at a downstream end of the receiver passage.

A compressed gas gun including a housing and a bolt movable within a passage in the housing. Movement of the bolt relative to the housing opens a flow path for firing a projectile.

The present invention is directed toward an adapter for launching miniature sonobuoys from a standard sized sonobuoy launching container. The adapter includes a first cylindrical member, a second cylindrical member, and a diverter member, and is disposed within the container. The first member includes a central passage that retains a first miniature sonobuoy. The second member includes a central passage retains a second miniature sonobuoy. The second member further includes at least one channel that extends through the sidewall of the second member. The diverter member is in fluid communication with the at least one channel and the central passage of the second member. The diverter is configured to divert a first burst of air along the at least one channel to launch the first miniature sonobuoy and divert a second burst of air along the central passage of the second cylindrical member to launch the second miniature sonobuoy.

A differential pressure type inflating device, adapted for fast inflating the devices that need inflating, comprises a gas container, a relief valve, a gas nozzle, a pipe joint, a switchvalve, and a relief pipe. When external high pressure gas enters the gas container and renders the gas pressures in the gas container and the relief pipe reaching a balance condition, the switchvalve can be pressed to generate pressure drop in the relief pipe, which launches the relief valve and discharges the high pressure gas in the gas container from the gas nozzle. In this design, the gas container, relief valve, gas nozzle, relief pipe, and pipe joint are connected with screwing structures, so as to achieve the function of easy assembling.