Abstract: A chemical oxygen generator with enhanced structural integrity. In some embodiments, the chemical core of the chemical oxygen generator is reinforced with one or more reinforcing structures that are integral with the core. In some embodiments, as the core burns, the one or more reinforcing structures become fused with the core.

Abstract: A residual pressure valve configured to maintain a residual pressure within a pressure vessel to prevent contaminants or gaseous diluents from entering the vessel after it has been discharged/depressurized. In some embodiments, the residual pressure valve is situated between the pressure vessel and an upper seat of the regulator assembly and moves between an open position and a closed position to seal the pressure vessel from the upper seat of the regulator assembly when the pressure within the pressure vessel drops below a residual pressure level.

Abstract: A pressure gauge for possible use in an aircraft. The pressure gauge includes a pointer and at least a first set of indicators and a second set of indicators that indicate an amount of pressure being applied to the gauge. The first set of indicators may be positioned along a front surface of the gauge and the second set of indicators may be positioned along a side surface of the gauge that is generally orthogonal to the front surface. The pointer includes a body that extends in a first direction that is contained in a first plane and a distal tip that extends in a second direction that is contained in a second plane that is generally orthogonal to the first plane.

Abstract: A residual pressure valve configured to maintain a residual pressure within a pressure vessel to prevent contaminants or gaseous diluents from entering the vessel after it has been discharged/depressurized. In some embodiments, the residual pressure valve is situated between the pressure vessel and an upper seat of the regulator assembly and moves between an open position and a closed position to seal the pressure vessel from the upper seat of the regulator assembly when the pressure within the pressure vessel drops below a residual pressure level.

Abstract: A chemical oxygen generator with enhanced structural integrity. In some embodiments, the chemical core of the chemical oxygen generator is reinforced with one or more reinforcing structures that are integral with the core. In some embodiments, as the core burns, the one or more reinforcing structures become fused with the core.

Abstract: A valve manifold assembly having a valve body with at least one chamber defined therein. The chamber has at least one inlet and at least one outlet and has at least one opening. A poppet is disposed in the chamber. The poppet slides in the chamber between a first position where the poppet seals the inlet and a second position where the poppet is disposed in spaced-apart relation relative to the inlet. The poppet has an opening disposed therein. A pin having a first section with a first diameter and having a second section with a second diameter is capable of being slidably disposed through the at least one opening in the valve body and through the opening in the poppet.

Abstract: The present invention relates to a device to rotate a previously unrotatable receiver used with helmets, preferably aircraft helmets.

Abstract: A method and apparatus for making cuvettes. The cuvette comprises two optically transparent liquid impermeable plastic sheets. A third "sticky" sheet is inserted between the two transparent plastic sheets and the three sheets are pressure sealed together. The thickness of the "sticky" sheet defines the optical pathlength of the turbid media. The "sticky" sheet has cut outs defining the contour of an optical chamber, inlet port and vent port.