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| Number | Title | Issue Date |
| 7669460 | Small-scale shock reactivity and internal blast test An apparatus for conducting a small-scale shock reactivity and internal blast test (SSBT), and a related test method that simulates a large scale test of explosive materials while employing small quantities of materials for the characterization. The apparatus includ... | 03/02/2010 |
| 7340941 | Dense thin film-based chemical sensors and methods for making and using same Sensors for determining the ambient amount (e.g., concentration) of a chemical (e.g., molecular hydrogen in a gas or vapor) are disclosed. Preferred embodiments of these sensors comprise a dense thin metal (e.g., palladium or a palladium alloy) film disposed on a mi... | 03/11/2008 |
| 7225740 | Electromagnetic pulse transmitting system and method A plasma antenna generator includes an ionizable material, an explosive charge capable of projecting the ionizable material upon detonation, and a detonator coupled with the explosive charge. An electromagnetic pulse transmitting system includes an electromagnetic p... | 06/05/2007 |
| 7219589 | Bomb fuze event instrumentation An assembly for indicating when a transient electronic event has occurred on a mobile platform is provided. The assembly includes a housing and a flash-producing device that communicates with the mobile platform and produces a flash approximately when the event occu... | 05/22/2007 |
| 7162919 | Blast pressure gauge Blast pressure gauges and methods for detecting blast pressure during a blast test. The gauges operate independently of power sources, are portable, and are used in harsh environments including test ranges. Each embodiment is constructed to detect blast pressures as... | 01/16/2007 |
| 7063801 | Composite material and method for preparing the same, and raw composite material used for preparing the same The invention relates to an improvement in tourmaline known as a functional ore. In particular, the invention provides a composite having a novel formation in which a far infrared radiation emitting property and others among tourmaline's properties are effectively e... | 06/20/2006 |
| 6925887 | Blast pressure gauge An apparatus for measuring pressure includes a cylindrical tube having an open end and a closed end; a piston disposed in the cylindrical tube at the open end; an accelerometer attached to a side of the piston that faces the closed end of the tube, the accelerometer... | 08/09/2005 |
| 6773674 | Thermal analysis for detection and identification of explosives and other controlled substances The invention features methods and systems for detecting the presence of an energetic material in a sample in which the presence of the energetic material is unknown. The method includes the steps of: heating the sample; measuring heat flow between the sample and it... | 08/10/2004 |
| 5918263 | Microcantilever detector for explosives Methods and apparatus for detecting the presence of explosives by analyzing a vapor sample from the suspect vicinity utilize at least one microcantilever. Explosive gas molecules which have been adsorbed onto the microcantilever are subsequently heated to... | 06/29/1999 |
| 5659133 | High-temperature optical combustion chamber sensor The disclosure describes a high-temperature optical transducer capable of acquiring input variables for closed-loop control of combustion systems. The key components of the innovation are a high-temperature, embedded photodiode, the use of low-cost, integ... | 08/19/1997 |
| 5614659 | Pore-air pressure measurement device for use in high shock environments A device for measuring soil pore-air pressure in a high shock environment characterized by a shock resistant housing containing a plurality of pressure sensing ports with sintered metal filters mounted therein which filter fine soil particles, withstand ... | 03/25/1997 |
| 4893049 | Lithium niobate explosion monitor Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock wave from detonation of the explosive device, the crystal emits a current pulse prior to destruct... | 01/09/1990 |
| 4827414 | Monitoring system and method for nuclear weapons effects detection and damage assessment A system for detecting a nuclear weapon explosion and assessing damage therefrom comprising a sensor head and an electronic signal processor is disclosed. The sensor head is spherical in shape and comprises a plurality of temperature sensors at different ... | 05/02/1989 |
| 4654528 | Radiation level reporting system A remote sensing transponder system is disclosed including apparatus for sensing gamma radiation levels proximate thereto, generating a signal indicative of the sensed radiation level, and transmitting an RF Signal modulated with the generated signal to a... | 03/31/1987 |
| 4621519 | Ballistics pressure transducer The invention involves the design of a piezoelectric pressure transducer d for measuring pressure-time characteristics in gun tubes during the propellent ignition and burning process. The transducer utilizes one or two Z-cut tourmaline crystals as the pi... | 11/11/1986 |
| 4492121 | Gauge for measuring high transient pressures An article and method is provided for remotely optically measuring high transient isotropic pressures. The arrangement employs a fluorescent crystal (such as a ruby) secured to one end of an elongate optical fiber waveguide for placement in the vicinity o... | 01/08/1985 |
| 4434655 | Black powder flamespread tester A black powder flamespread tester is disclosed in which powder to be qualed is packed in a sample tube provided with a plurality of sight holes. Light sensors are disposed adjacent each sight hole and emit signals upon flame front passage of the sight ho... | 03/06/1984 |
| 4379401 | System for measuring plate deformation produced by explosive shock waves, and motion-sensing accelerometer transducer used therein A novel testing system utilizing a novel subcombination multiple pin/probe ype, motion-sensing accelerometer transducer, capable of sensing exceptionally high levels of structural motion, in the domain of from about 1,000,000 to 10,000,000 Gs (force of gra... | 04/12/1983 |
| 4140004 | Apparatus for determining the explosion limits of a flammable gas An apparatus for determining the explosion limits of flammable gases having a combustion chamber, a conduit leading to the combustion chamber for conveying the sample stream of gas, a temperature control for maintaining the gas in the combustion chamber a... | 02/20/1979 |
| 3975942 | Circuit for determining the fire-no-fire characteristics of electroexplosive devices A circuit for determining the fire no-fire characteristics of electroexplve devices involves the application of an incrementally adjustable current level automatically to successive electroexplosive devices. The initial predetermined current level is app... | 08/24/1976 |
