Abstract: An externally adjustable pressure regulator includes a body having a shoulder, a longitudinal axis and a high pressure inlet. The body has an opening along a side. A bonnet has a regulated pressure outlet and is engaged with the body. A piston is positioned in part in the body and the bonnet. The piston has a shoulder, a longitudinal bore and a transverse bore at about the end thereof in flow communication with the longitudinal bore. A spring is disposed on the piston. A wedging element is positioned in the opening in the body side and is in contact with the spring. An adjusting ring engages the wedging element to move it into the spring to increase compression of the spring and off of the spring to decrease compression. Increasing compression of the spring increases a spring force of the spring on the piston and decreasing compression of the spring decreases the spring force on the piston.

Abstract: A pressure regulator for controlling the flow of gas from a high pressure source to a low pressure device and regulating a pressure to the low pressure device includes a body having a high pressure inlet and a regulated pressure outlet. The body has a series of passages and bores including first and second regulator valve assembly bores and first and second fill valve assembly bores. The first and second regulator valve assembly bores are disposed on opposing sides of one of the passages and the first and second fill valve assembly bores are disposed on opposing sides of one of the passages. A regulator valve assembly includes a seal, a regulator valve piston, a biasing member and an adjusting plug positioned in the first regulator valve assembly bore, and a seal, a seat, a ball, a spring and a plug positioned in the second regulator valve assembly.

Abstract: An externally adjustable pressure regulator includes a body having a shoulder, a longitudinal axis and a high pressure inlet. The body has an opening along a side. A bonnet has a regulated pressure outlet and is engaged with the body. A piston is positioned in part in the body and the bonnet. The piston has a shoulder, a longitudinal bore and a transverse bore at about the end thereof in flow communication with the longitudinal bore. A spring is disposed on the piston. A wedging element is positioned in the opening in the body side and is in contact with the spring. An adjusting ring engages the wedging element to move it into the spring to increase compression of the spring and off of the spring to decrease compression. Increasing compression of the spring increases a spring force of the spring on the piston and decreasing compression of the spring decreases the spring force on the piston.

Abstract: A pressure regulator for controlling the flow of gas from a high pressure source to a low pressure device and regulating a pressure to the low pressure device includes a body having a high pressure inlet and a regulated pressure outlet. The body has a series of passages and bores including first and second regulator valve assembly bores and first and second fill valve assembly bores. The first and second regulator valve assembly bores are disposed on opposing sides of one of the passages and the first and second fill valve assembly bores are disposed on opposing sides of one of the passages. A regulator valve assembly includes a seal, a regulator valve piston, a biasing member and an adjusting plug positioned in the first regulator valve assembly bore, and a seal, a seat, a ball, a spring and a plug positioned in the second regulator valve assembly.

Abstract: A fill station permits transferring a gas, such as a compressed gas from a second device to a first device. The fill station includes a body having an inlet, an inlet/outlet port and an outlet. The body has a passage extending between the inlet, the inlet/outlet port and the outlet. The passage includes a central passage portion. The body includes a bore therein in communication with the central passage portion. A valve assembly includes a seal, a seat, a ball and a biasing member mounted in the body at a first side of the central passage in communication with the inlet/outlet port and a seal, a seal support, and an actuator shaft positioned in the body on an opposite side of the central passage portion. Engagement of the actuator shaft with the ball moves the ball off of the seat to open flow communication from the inlet/outlet port to the outlet and disengagement of the actuator shaft from the ball moves the ball onto the seat to close flow communication from the inlet to the outlet.

Abstract: A pressure regulator for controlling the flow of gas from a high pressure source to a low pressure device includes a body having a high pressure inlet defining a seat. An adjusting collar has a centrally located bore. The collar engages the body at any predefined radial orientation. The collar has a thread and is securable to the body at the selected radial orientation. The regulator also has a threaded bonnet to engage the collar. A locking ring engages the body and secures the adjusting collar to the body. A piston has a central bore and is disposed within a piston chamber that defines a gap between the piston and a wall. The piston is movable between an open condition and a closed condition. A spring moves the piston to the open condition. A pin valve is disposed in the central longitudinal bore in the piston.

Abstract: A self-sealing protective/dust cover for application to a magnetically attractable filling port includes a sleeve defined by a closed wall and closed at one end by an end face. The closed wall defines an open central region and the end face is contiguous with the closed wall. A magnet provide magnetic attraction between the protective/dust cover and the filling port to maintain the protective/dust cover on the filling port.

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 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.