Abstract: A supplemental fuel supply system for use in an internal combustion engine having a fuel supply and using an on-demand supplemental oxygen supply includes a fuel pump and a supplemental oxygen supply regulator. The pump has a fuel supply and a fuel discharge. The pump includes an inlet for feed from the supplemental oxygen supply. The pump is driven by a portion of the supplemental oxygen supply such that when a demand is made on the on-demand supplemental oxygen supply to supplement oxygen to the internal combustion engine, a portion of the supplemental oxygen is introduced into the fuel pump to drive the fuel pump to discharge fuel therefrom to the internal combustion engine. The discharge from the supplemental oxygen supply regulator supplies both the fuel pump and the internal combustion engine.

Abstract: A direct acting pressure regulator controls the flow of a gas from a high pressure source to a low pressure device. Gas is delivered from the regulator at a predetermined outlet pressure. The regulator includes a body having a high pressure inlet and defining a seat. A bonnet is engageable with the body to define a piston chamber within the body and the bonnet. The bonnet has a regulated gas outlet. A piston is disposed within the piston chamber and defines a gap between the piston and a wall defining the chamber. The piston is movable between an open regulator condition and a closed regulator condition. The piston includes a plug having a sealing surface engageable with the seat and movable toward the seat to the closed regulator condition and away from the seat to the open regulator condition. The plug includes axially disposed openings therein for communicating gas from around the plug to a central longitudinal bore in the piston.

Abstract: A burst disk assembly is configured for use in a pressurized gas system for venting pressurized gas from the system in the event that the gas exceeds a predetermined pressure. A plug has a tapered cylindrical shape with a minimum cross-section that is less than a body plug region open cross-section of the assembly, and a maximum cross-section that is greater than the body plug region open cross-section. The plug defines, at an end adjacent the minimum cross-section, a disk face. A frangible disk is positioned in the plug region and is sandwiched between the plug disk face and a body radial wall of the assembly.

Abstract: A transverse flow adjustable pressure regulator controls the flow of a gas from a high pressure source to a low pressure device. The regulator includes a body having an inlet port and a pressure chamber. A bonnet engages the body to define a piston chamber and a transverse outlet port. An end cap is positioned at an end of the bonnet. A regulating assembly is disposed in the pressure chamber that includes a seat and a seat support, a thrust element, a retaining element and a seal disposed in part between the thrust element and the retaining element. A piston assembly has a power tube terminating at a regulating end. The piston has a piston portion having a pressure face and a piston stem. The regulating end defines a passage contiguous with a cross-bore in the piston stem.

Abstract: A direct acting pressure regulator controls the flow of a gas from a high pressure source to a low pressure device. Gas is delivered from the regulator at a predetermined outlet pressure. The regulator includes a body having a high pressure inlet and defining a seat. A bonnet is engageable with the body to define a piston chamber within the body and the bonnet. The bonnet has a regulated gas outlet. A piston is disposed within the piston chamber and defines a gap between the piston and a wall defining the chamber. The piston is movable between an open regulator condition and a closed regulator condition. The piston includes a plug having a sealing surface engageable with the seat and movable toward the seat to the closed regulator condition and away from the seat to the open regulator condition. The plug includes axially disposed openings therein for communicating gas from around the plug to a central longitudinal bore in the piston.

Abstract: An expansion chamber with a connection to an airgun employing carbon dioxide or similar gas as a propellant. The expansion chamber is normally connected to a source of liquified gas, included therein is a structure for separating liquified gas into the gaseous state for use as a propellant. Any remaining liquid portion is retained until it is converted into the gaseous state.

Abstract: The invention is an attachment for airguns and/or similar devices powered by compressed gas. The unit is multi functional in that it facilitates rapid refilling of a connected gas supply vessel from a bulk supply source, without the necessity of removing the supply vessel from the airgun. The adaptor also provides the basic benefits of a simple expansion chamber, effectively providing compensation for periodic introduction of any liquid gas propellant from the gas supply vessel caused by handling or orientation of the airgun and/or aerosol supercharging.