Patent ID: 7587929
Filing Date: 2009-09-15
Classification: A62B

Abstract:
1. A Joint Combined Aircrew Systems Tester (JCAST), comprising: a display screen adapted to display text messages; a plurality of audio test ports and a plurality of circuits adapted to test headsets and microphones for continuity, tones and current drawn; a G-suit port adapted to connect to a G-suit; a plurality of Man Mounted Regulator (MMR) ports; a drink tube port adapted to connect to a drink tube; a removable face form adapted to test mask integrity for nuclear, biological and chemical (NBC) masks; and an internal gas plumbing adapted to test MMRs, drink tubes, a G-suit, oxygen masks, and NBC masks for leaks, the JCAST being an integrated and portable unit, the internal gas plumbing including a volumetric leak test definition plumbing adapted to accurately detect and measure leaks in elastic bodies including NBC masks for leaks as small as 0.5 sccm by keeping an elastic device under test (DUT) under constant pressure throughout the test and measuring a pressure drop in an accumulator used to supply air mass to the DUT.