Abstract: A locking mechanism for a pyrotechnic safe and arm interrupter 98 may be constructed with an external lock casing 2, longitudinally extending bolt 3, washer 4, spring 5, retaining ring 8 and interlocking element 9 that may be configured in various shapes and features corresponding with a safety release component. A key 10 may be constructed with key stem 11, handle 12 and two pairs of teeth 13, 14 of different diameters radially protruding from successively reduced diameters along a distal portion of key stem 11. Lock 1 may be installed with notch 19 in alignment with a corresponding feature of the safe and arm interrupter mechanism and fastened in place with mounting holes 20 so that only mounting flange 17 and the key access 18 are external to the interrupter device, panel or door.

Abstract: A Joint Combined Aircrew Systems Tester (JCAST) that can be used to test aircrew integrated life support equipment currently authorized for use by aircrew members of the Air Force, Navy and Army. The JCAST will be capable of Chemical/Biological seal testing of all the Joint Service Aircrew Mask (JSAM) variants including the Type 2 JSAM for high performance aircraft. Like traditional Testers, the JCAST is capable of Performance and Fit Testing of masks at pressure levels, including COMBAT EDGE (Combined Advanced Technology Enhanced Design “G” Ensemble), consistent with aircraft supply levels. The JCAST provides an apparatus and technique for accurately measuring a leak rate for an elastic body such as a chemical mask at 0.5 sccm at 6 IWG. The JCAST is portable and light weight while providing novel leak testing using pressure decay.

Abstract: The invention enables testing of nearly all aircrew equipment including COMBAT EDGE system components which include a mask, a G-suit, communication systems, and a goggle. A gas system includes an input filter, a first compressor comprising at least one blower, preferably three blowers connected in series, a second compressor, a first flow sensor, a second flow sensor, a first flow valve, a second flow valve, a regulator, a first pressure sensor, a second pressure sensor, a first pressure valve, a second pressure valve, and a controller. The second compressor produces a lower flow at a higher pressure than the first compressor. When the G-suit inflates, initially there is a large change in volume without much change in pressure, and then, as the G-suit fills and becomes firm, the change in volume slows down and the rate of the pressure increases. A normal breathing test, a preflight test, a fit test, a G-suit leak test and two dynamic flow leak tests are conducted.

Abstract: Apparatus and methods for fitting mechanical parts to minimize prevent free play are described. An apparatus having a piston is designed so as to restrain the piston before actuation, and so as to allow the piston to gain momentum before striking an object. The described apparatus are applicable to devices involving shearable elements. An embodiment of the invention relates to a pyrotechnically activated valve incorporating such features to minimize free play in conjunction with such features so as to restrain the piston and also allow the piston to gain momentum.

Abstract: The present invention enables functional testing nearly all aircrew equipment including a COMBAT EDGE (combined advanced technology enhanced design “G” ensemble) system components which include a mask, a G-suit, communication systems, and a goggle. The present invention includes a gas system which includes an input filter, a first compressor comprising at least one blower, preferably three blowers connected in series, a second compressor, a first flow sensor a second flow sensor, a first flow valve, a second flow valve, a regulator, a first pressure sensor, a second pressure sensor, a first pressure valve, a second pressure valve, and a controller. The inlet filter designed to accept a chemical filter. The second compressor produces a lower flow at a higher pressure than the first compressor.