Class 73/35.14 - EXPLOSIVE

Subclass of Class 73 - Measuring and testing
Definition: Subject matter comprising a process or an apparatus for
No. of patents: 40
Last issue date: 07/12/2011

Number	Title	Issue Date
7975527	Explosion indicators for use in explosion-proof enclosures with critical equipment Indicator devices and systems are provided. Indicator devices include a sleeve, a dome-like transparent member, a connector body, and an indicator. In alternate embodiments, indicator devices include a sleeve and an indicator retained in the sleeve by a retaining ri...	07/12/2011
7891233	Blast movement monitor A blast movement monitor for measuring the movement of material within a body of material as a result of a blasting operation, the monitor including: a housing having an interior chamber defining an inner surface; and ...	02/22/2011
7614278	Blast movement monitor A blast movement monitor for measuring the movement of material within a body of material as a result of a blasting operation, the monitor including: a housing having an interior chamber defining an inner surface; and ...	11/10/2009
7490507	Method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations A method for measuring the movement of boundaries between different portions of a heterogeneous rock body is disclosed. The method comprises placing a plurality of blast movement monitors 109 in a rock body prior to blasting and noting the position of each bl...	02/17/2009
7370513	System and method for monitoring features of a blast A method of monitoring a feature of a blast such as velocity of detonation (VOD) comprises the steps of providing a detonator 16.1 at a blast site 12. Prior to the blast, a blast control signal path 20, 18.1 is utilized to communicate blast cont...	05/13/2008
7367269	Blast movement monitor and method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations A method for measuring the movement of boundaries between different portions of a heterogeneous rock body is disclosed. The method comprises placing a plurality of blast movement monitors 109 in a rock body prior to blasting and noting the position of each bl...	05/06/2008
7261028	Ordnance system with common bus, method of operation and aerospace vehicle including same An ordnance system and method for controlling an ordnance system is provided. The system and method utilizes an addressable common, or shared, bus configured to transmit and receive data thereon. The addressable bus has further coupled thereto an ordnance controller...	08/28/2007
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
7225691	Airbag inflator performance test system An airbag inflator performance test system includes: a cylindrical tank; a disk-shaped piston vertically movably disposed with a gap between the piston and an inner peripheral face of the tank, the gap allowing gas to flow; a piston rod that projects upward from the...	06/05/2007
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
6955217	Method and apparatus for a tubing conveyed perforating guns fire identification system using fiber optics A method and apparatus for determining whether a tubing conveyed perforating (TCP) gun has fired by detecting a change in characteristics of the flow of an oil well. A method and apparatus detects the presence of fluorescent tracer dye to determine whether or not a ...	10/18/2005
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
6872786	Molecularly imprinted polymeric sensor for the detection of explosives A molecularly imprinted polymeric explosives sensor is provided which possesses selective binding affinity for explosives, such as 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitrobenzene (TNB). The polymeric sensor incorporates a porphyrin which undergoes a detectable...	03/29/2005
6662629	Propellant test apparatus and method A test apparatus and method for a solid propellant, comprising a combustion chamber for the solid propellant, an igniter for igniting propellant in the combustion chamber, and an exhaust housing having a primary exhaust channel extending from the combusti...	12/16/2003
6644099	Shaped charge tubing cutter performance test apparatus and method A shaped charge tubing cutter performance test apparatus and procedure comprises a plurality of test coupons, preferably fabricated from a pipe wall section of the test subject. The coupons are configured with a height greater than the axial length of the...	11/11/2003
6613576	Field kit and method for testing for the presence of gunshot residue A field test kit for gunshot residue comprises a container having at least compartments separated by a barrier. A surface is tested by wiping it with a swab and placing the swab in a first compartment. The barrier is then breached, permitting reagent in t...	09/02/2003
6406918	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 sa...	06/18/2002
6366436	Electronic device for use in regions subject to explosion hazards A description is given of an electronic device for use in regions subject to explosion hazards, which is small and light, can be produced cost-effectively and offers a high degree of flexibility, having a housing (1) with a connecting chamber (3), which i...	04/02/2002
6354137	Inertial confinement cylinder for explosive characterization A reusable small-scale explosive testing apparatus has a structural member with a curved internal chamber, a head piece that inserts into the chamber, a cap to hold the head piece, a pressure-time gage, water to fill the chamber and a pressure release mec...	03/12/2002
6182496	Copper crusher gauge holder A copper crusher gauge holder for testing internal pressures of cartridges during test firing is provided. The copper crusher gauge holder has a circular aluminum upper plate and a circular aluminum lower plate having a layer of urethane rubber approximat...	02/06/2001
6131437	Mechanical crush gauge and method of using same to measure free-field energy flux density A mechanical crush gauge has a housing defining a fixed diameter hole that olds a sample of deformable material and an indentor having a flat end and a spherically-shaped end opposite the flat end. The indentor has its flat end flush with the surface of th...	10/17/2000
6117178	Explosion consequences and siting analysis tool A computer system whereby the user selects any combination of hazards and buildings which are of interest in modeling and simulating potential explosions. The software of the present invention automatically calculates distance and orientation of various b...	09/12/2000
5987962	Copper crusher gauge holder A copper crusher gauge holder for testing internal pressures of cartridges uring test firing is provided. The copper crusher gauge holder has a circular aluminum upper plate and a circular aluminum lower plate having a layer of urethane rubber approximatel...	11/23/1999
5922940	Barometric and altimeter bomb detection and midair explosion avoidance system for airplanes A barometric and altitude bomb detector and midair explosion avoidance system has reinforced armored chamber for containing air travel passenger luggage which is capable of regulating the atmospheric pressure within the chamber. The present invention is d...	07/13/1999
5918262	Frangible microsphere peak pressure measuring device and method of making same Peak pressure of a shock wave can be measured by a plurality of frangible crospheres of known fracture pressures. The microspheres are sized to be surrounded by the shock wave as the shock wave travels thereby. The microspheres remaining intact after the ...	06/29/1999
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
5728584	Method for detecting nitrocompounds using excimer laser radiation A method for the ultra-sensitive detection of atmospheric and surface adsorbed nitrocompounds such as propellants, explosives, and nitro-pollutants employs an excimer (ArF) laser operating at or near 193 nm to photofragment the target molecule and facilit...	03/17/1998
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
5272908	Flame position ultrasonic interferometer A sensitive instrument system for determining the position of the burn fr in a rocket motor is disclosed. Separate adjacent transmitter and receiver elements are attached to the rocket motor casing to form an ultrasonic interference system. An ultrasound...	12/28/1993
4932239	Standard target for explosive charge testing A method of testing an explosive charge using a uniform shaped charge testing standard that is simulative of naturally occuring Berea sandstone test specimens. A quantity of zircon sand is mixed with from 3% to 8% by weight of the total mixture of a pheno...	06/12/1990
4881400	Continuous measuring diaphragm pressure gage A mechanical pressure gage for measuring the change in fluid pressure resing from an explosive charge and the like. The sealed gage housing includes a plate member having a recess in which a metalic foil diaphragm means is frictionally mounted therein. T...	11/21/1989
4495809	Deep depth undex simulator A deep depth underwater simulator is illustrated for determining the dual effects of nuclear type underwater explosion shockwaves and hydrostatic pressures on a test vessel while simulating, hydrostatically, that the test vessel is located at deep depths....	01/29/1985
4487067	High speed spin test device A rotatably shaft is directly supported by at least three wheels, including drive wheel. The circumferential edge of each of the wheels frictionally engages the circumferential edge of the shaft. The shaft is in frictional contact with each of the wheels,...	12/11/1984
4479378	Method and system for determining effect of underwater explosion on submerged structures A method and system for experimentally determining response characteristics and strength capacity of submerged hull structures subjected to underwater explosion. This method and system allows testing in relatively shallow water, near the shore and in clos...	10/30/1984
4476710	Detonation transfer evaluation technique In order to evaluate competing explosive trains at explosive interfaces, at least one penalty barrier is inserted in the gap between a donor explosive component and an acceptor explosive component. Each of the barriers, if more than one, has a first layer...	10/16/1984
4334423	Warhead fragmentometer A method and apparatus are described for the determination of the mass and ocation of fragments from a warhead. The fragments are caught in a stack of soft panels placed in the line of fire. Each panel is then fed thru a reading device including an array o...	06/15/1982
4304121	Apparatus and method for a gyroscopic effect test Disclosed herein is an apparatus and method for performing a test with a gyroscope in which the apparatus defines a pair of gyroscopes suitably fashioned to rotate in opposed directions, a substrate supporting said gyroscopes, and a bell jar overlying the...	12/08/1981
4198869	Apparatus for permanently indicating maximum gas pressure in a system An improved apparatus for measuring the maximum pressure of gas in a system by use of the Brinell principle. In preferred form, the apparatus of the invention is mounted in a plug fitting in the end of a steel cylinder for transporting gases under pressur...	04/22/1980
4143617	Rocket motor life indicator Forms of an indicator attached to the casings of rocket motors in the field to show the readiness of rocket motors using solid fuel are described. Each form described includes a viscous material, as for example a wax, disposed in a chamber and a spring-lo...	03/13/1979
3931730	Ramp current apparatus and method of sensitivity testing A ramp current method of sensitivity testing allows a dynamic record to be btained of the current, voltage, and energy, as well as resistance and instantaneous power necessary to fire electroexplosive devices. This method is most valuable in that useful in...	01/13/1976

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Class 73/35.14 - EXPLOSIVE