Matches 251 - 300 out of 468 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
5247843 Apparatus and methods for simulating electromagnetic environments  
Systems and methods for simulating electromagnetic environments to be encountered by a moving object such as a missile are disclosed. The systems include compact ranges in "hardware in the loop"...
5220840 Method of calibrating light output of a multi-lamp light fastness testing chamber  
The light output of a multi-lamp lightfastness testing chamber defining a sample testing area in the chamber may be performed by sequentially turning on and off each lamp by itself, while measuring...
5207110 Suspension device for low-frequency structures  
A suspension device is provided for simulating the free-free boundary conditions of space for a low frequency structure. A support cable is connected at one end to the test structure and is...
5195384 Environmental stress screening device transfer apparatus  
The disclosed shuttle apparatus provides for the transfer back and forth from compartment to compartment, electronic devices being environmentally stress tested in a multi-compartment environmental...
5187987 Bending beam creep test device with piston having a gas bearing  
Apparatus is disclosed for measuring creep stiffness of a specimen, for example, asphalt cement, or other viscoelastic material, having a flexural modulus greater than approximately 1,000 psi. The...
5182955 Borehole formation model for testing nuclear logging instruments  
The borehole formation model is built by stacking in a spaced relationship selected glass plates to simulate the formation. Each glass plate has a circular hole in the center to simulate the oil or...
5172598 Stored gas inflatable restraint inflation system  
A testing apparatus connects to an inflatable restraint and simulates the inflation curve of a pyrotechnic device used in a vehicle. A manifold connects the inflatable restraint to a pair of...
5168748 Leak simulation device for storage tanks  
A method and apparatus for simulating leakage from a liquid storage tank to test the accuracy of leak measurement instruments. An elongated pipe string formed by pipes connected end to end is...
5147136 Temperature cycling test chambers  
Two environmental test zones at different temperatures are separated by an insulated wall. A portion of the wall is rotatable and is designed to hold a test specimen thereon. By rotating this...
5138892 Accelerated light fastness test method  
A method of carrying out an accelerated light fastness test on a sample of a material to be used under certain conditions of air convection along the surface thereof, is constituted by the steps of...
5136886 Accelerated weathering and lightfastness testing chamber  
A lightfastness testing chamber comprises an enclosure for samples being tested and at least one, and preferably a plurality of, lamps for irradiating samples in the enclosure. A monitor of the...
5134891 Device to determine the coefficient of the hydric expansion of the elements of a composite structure  
So as to determine the coefficient of hydric expansion β of the elements of a composite structure, a sample of this structure is placed in a rigid cradle (10) so that one extremity of the sample...
5110294 Device for ground-based simulation of operations of a manipulator usable in space by means of a model of a space vehicle  
In a device for the ground-based simulation of operations capable of being performed in the direction of or around the three axes of an orthogonal coordination system of a manipulator usable in...
5088316 Apparatus and method for testing material samples for gas diffusion characteristics  
A method and apparatus for testing the gas diffusion characteristics of material samples includes a sealed test chamber in which one or more test cells are placed. A material sample is mounted on...
5086648 Simulation system for automotive prime mover  
A simulation system for an automotive internal combustion engine includes a low inertia power generator which includes a direct current motor and a speed increasing device. An engine characteristic...
5073503 Biothermographic analysis of plants  
A method of biothermographically screening plants for favorable genetic characteristics such as drought resistance or heat tolerance is provided which comprises the nondestructive laboratory...
5038617 Apparatus for the undirectional vibration testing of an equipment under a controlled atmosphere  
Unidirectional vibration testing apparatus under a controlled atmosphere comprising a tight enclosure (10) in which is placed a support (24) for the equipment to be tested and a vibration generator...
5039228 Fixtureless environmental stress screening apparatus  
A fixtureless environmental screening device is provided for the testing of mechanical, electromechanical and electrical devices. The apparatus uses a relatively incompressible fluid having a high...
5025659 Slotted-wall extension and method for environmental wind tunnels  
An environmental wind tunnel facility for automotive vehicles, such as passenger cars, is provided with a slotted-wall extension which improves the air flow simulation over the entire vehicle and...
5024111 Adjustment of zero spring rate suspensions  
An adjustment system for a suspension system having the property of providing a zero spring rate response to limited vertical excursions from a reference level, the suspension system including a...
5018396 Cell assembly for determining conductivity and permeability  
A cell assembly for determining the conductivity and permability of proppants in simulated subterranean formations comprising a plurality of vertically stacked cell units interconnected such that...
5016185 Electromagnetic pyramidal cone absorber with improved low frequency design  
A pyramidal cone absorber structure is equated to an effective absorbing layer model having effective permittivity and permeability properties. A Riccati equation, governing the coefficient of...
5014225 Apparatus and method for determining plant fluorescence  
An apparatus and method for determining the photosynthetic activity of a plant by determining the chlorophyll fluorescence of the plant is provided. The apparatus includes a light impermeable...
4996875 Apparatus and method for evaluation of fluid flow within a combustion chamber  
The invention provides an apparatus which simulates fluid flow patterns within a chamber. The apparatus includes a chamber having a mechanism to enable viewing of the inside of the chamber. A...
4995272 Torsional suspension system for testing space structures  
A low frequency torsional suspension system for testing a space structure uses a plurality of suspension stations attached to the space structure along the length thereof in order to suspend the...
4995273 Method of an apparatus for weather resistance test  
A method of and apparatus for weather resistance test comprising a process for washing the surface of samples with a cleaner which is added at least between a process for condensing moisture on the...
4990312 High-pressure promoted combustion chamber  
In the preferred embodiment of the promoted combustion chamber disclosed herein, a thick-walled tubular body that is capable of withstanding extreme pressures is arranged with removable upper and...
4984988 Simulated engine characteristic control system  
An simulated engine characteristic control system for transmission transient performance tests for automotive vehicles comprises a motor for driving an input shaft of the tested transmission, a...
4983526 Method of measuring and controlling ozone concentration  
A method of measuring or controlling ozone concentration by ultraviolet ray absorptiometry, includes charging air into a testing tank with its temperature controlled, measuring the disturbing gases...
4982728 Apparatus for assembling semiconductor devices  
An apparatus for assembling semiconductor devices includes a transportation line for transporting partially fabricated articles such as lead frames with a semiconductor chip mounted thereon; a...
4981046 Soil photolysis apparatus and collection trap module  
An apparatus for the collection of volatiles includes a housing that forms an environmental chamber. Dishs of test sample are placed in this chamber which is closed with a transparent cover. A...
4974461 Anthropomorphic cardiac ultrasound phantom  
Apparatus and method are disclosed for producing ultrasound readings of simulated blood flow through a model left ventricle or larger portion of the human heart, held inside a fluid filled chamber...
4961341 Testing device for an oxygen sensor  
An oxygen sensor testing device having an oxygen sensor disposed in a rear stage of a synthetic gas passage to evaluate the oxygen sensor using a synthetic gas supplied to the synthetic gas...
4957011 Weathering testing system  
A testing system for determining accelerated weathering characteristics of various items such as fabrics and paint samples. Rack means are provided for carrying samples to be tested. A source of...
4926118 Test station  
A station for testing electrical devices under elevated and depressed temperature conditions, said devices being transported through and tested in the station while held in coordinated planar sets....
4925089 Environmental response control apparatus and method  
A control apparatus for controlling the temperature of an environmental chamber within which a device is tested for thermal characteristics employs a pair of control elements connected in cascade....
4916076 Method to predict relative hydriding within a group of zirconium alloys under nuclear irradiation  
An out-of-reactor method for screening to predict relative in-reactor hydriding behavior of zirconium-bsed materials is disclosed. Samples of zirconium-based materials having different composition...
4915910 Corrosion monitoring apparatus  
The apparatus comprises a stack of corrosible members retained in position by a support, and measurement means, for example a dial gauge, arranged to measure any change in the height of the stack...
4911027 Method and apparatus for optical fiber/wire payout simulation  
A method and apparatus for taking up elongate, flexible communication lines such as wires and optical fibers for simulating the payout of such communication lines from rockets, missiles, aircraft...
4898026 Process for testing driving axles and device for performing the process  
A method of and apparatus for testing axles for motor vehicles and especially the drive axles for trucks, has a testing stand in which the axles are supported and connected to a drive motor and...
4884454 Manbasket testing apparatus and method  
A manbasket testing apparatus for use in the trial lift and proof testing of personnel work platforms known as manbaskets is disclosed. The testing device provides a manbasket supported by a floor...
4874952 Device for accelerated photo-aging of materials containing polymers  
A device for the accelerated photo-aging of materials containing polymers, enables samples of the materials to be submitted to the simultaneous action of ultraviolet radiation, temperature and...
4863115 Tape test cassette  
A test cassette is provided for testing tape tensioning devices in tape recorders and players. The test cassette has a at least one of a supply reel and a takeup reel which has two circular arc...
4860602 RF transparent thermal test chamber  
A thermally insulated test chamber for performing antenna testing over a broad frequency range. An antenna to be tested is placed within the test chamber, which is constructed of non-RF-reflective...
4860600 Three degree of freedom micro-gravity simulator  
The three degree of freedom micro-gravity simulator is a machine system that enables close duplication of three of the six weightless degrees of freedom of a space environment in the gravity field...
4858628 Smoking machine  
A method and apparatus for automated smoking to replicate a predetermined draw profile of a smoking article is disclosed. In preferred embodiments, the smoking apparatus is digitally controlled and...
4854726 Thermal stress screening system  
An environmental chamber for providing thermal stress screening is comprised of a plurality of modular components which may be quickly assembled and disassembled for ease of maintenance and repair....
4848145 In-situ linear flow proppant conductivity test cell  
An in-situ linear flow proppant conductivity test cell is provided which allows a downhole fracturing operation to be accurately simulated under laboratory conditions. The test apparatus includes a...
4847790 Pressure-controlling apparatus employed in pre-chamber of environmental testing chamber for self-propelled vehicle  
In a pressure-controlling apparatus employed in a pre-chamber of an environmental testing chamber for a self-propelled vehicle, in which testing chamber various tests are conducted under a...
4838070 Method and apparatus for dry testing water-immersible acoustic transducers  
A method of testing piezo-electric transducers includes locating one end (11) of a rod (10) of solid material over the active head (20) of the transducer, the rod (10) simulating the normal...
Matches 251 - 300 out of 468 < 1 2 3 4 5 6 7 8 9 10 >