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3679973 |
ELECTROGASDYNAMIC DUST MONITOR
Size and flow rate of dust particles entrained in a flowing gas stream are measured by an electrogasdynamic dust monitor. A multiple segment collector section generates currents with interdependent...
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3678380 |
MEASURING DEVICE FOR USE IN MOVING BODIES FOR NAVIGATION PURPOSES TO DETERMINE THE CHANGE OF ORIENTATION THEREOF
Orientation or a change of orientation measuring device for navigation purposes particularly in aircraft and spacecraft. The device utilizes a pair of superconductors wound in coil form connected...
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3665302 |
METHODS AND APPARATUS FOR DETERMINING THE CONDITION OF FOOD
A method and an apparatus are described for testing the condition of foods, particularly fish. It has been found that the dielectric properties of some foods vary with time and consequently that...
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3658479 |
DEVICE FOR MEASURING THE PRESSURE OF A GAS
A device for measuring the partial or absolute pressure of a gas, which device includes a partition comprising a substance which shows a reversible reaction with the gas molecules and is then...
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3654551 |
APERTURE VESSEL FOR FLUID-SUSPENSION PARTICLE ANALYZER
Improved aperture vessel is provided for processing a sample of fluid-suspended particles through an aperture during the study of particle characteristics such as size distribution. Vessel may be...
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3638111 |
APPARATUS FOR MEASURING ION OR ELECTRON BEAM WIDTH BY MONITORING SECONDARY EMISSION FROM A MOVING PROBE
A device for measuring and displaying selected characteristics (i.e., the intensity profile distribution, the shape and the width) of molecular and/or submolecular particle beams, such as ion or...
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3633099 |
PROCESS AND APPARATUS FOR DETERMINING CREVICE CORROSION BY POLARIZATION TECHNIQUES
Crevice corrosion is detected and its extent is qualitatively measured by use of a two-electrode, polarization-type probe. The two electrodes are fabricated of the same metal and have substantially...
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3628140 |
SCANNING ELEMENT AND APERTURE WAFER FOR ELECTRONIC PARTICLE COUNTING AND SIZING APPARATUS
An aperture wafer which is adapted to be mounted to an aperture tube scanning element for use with a Coulter-type electronic particle counting and sizing apparatus. The wafer is formed of the usual...
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3624659 |
AUTOMATED EQUIPOTENTIAL PLOTTER
Apparatus for automatically drawing equipotential lines on a sheet of resistance paper, that has areas connected to different voltages of a voltage supply. An ordinary X-Y-plotter is used, but the...
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3624496 |
METHOD AND APPARATUS FOR SWEPT-FREQUENCY IMPEDANCE MEASUREMENTS OF WELDS
A method and apparatus for testing integrated circuit microtab welds which includes preparing a set of reference signatures for a set of welds of known characteristics and then comparing a...
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3612998 |
ELECTROKINETIC CORROSION MEASURING APPARATUS AND METHOD
Hydraulic fluid having the characteristic of forming an electrical double layer in a hydraulic system and a resulting streaming current is subjected to a severe shear variation in the vicinity of...
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3603875 |
PARTICLE ANALYZING METHOD AND APPARATUS EMPLOYING MULTIPLE APERTURES AND MULTIPLE CHANNELS PER APERTURE
Disclosed is an improved method and apparatus for analyzing particles by the Coulter principle of employing an impedance responsive detecting aperture through which pass particles in suspension....
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3603956 |
CATHODIC PROTECTION MONITOR
A device for attaching to piping systems or the like having a cathodic protection potential applied thereto and comprising a visual indicator operated by such potential for producing an alarm...
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3597749 |
MAGNETIC HEADS UTILIZED AS A DISPLACEMENT MEASURING INSTRUMENT
An apparatus for the magnetic recording of gradient information wherein magnetic indicia are recorded on a magnetic medium which is detected by a pair of magnetic pickup heads. Since the spacing...
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3578160 |
PROCESS AND APPARATUS FOR SEPARATING ARTICLES
Process and device for separating potatoes from impurities such as clods and stones. The process consists of contacting the items to be examined by a pair of spaced feelers which are connected with...
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3571709 |
DETECTOR FOR MEASURING ICING RATES OVER A PLURALITY OF PERIODS OF TIME
This invention is directed to an icing rate detector. The invention utilizes an icing switch and a heater which are mounted on the outside of an aircraft. When ice forms on the switch, it closes...
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3566233 |
METHOD AND APPARATUS FOR MEASURING IMPEDANCE OF A CONDUCTING MEDIUM WITH A CALEBRATED PROBE
A technique and apparatus for measuring a quantity in a field associated with the transport of energy in a medium by introducing a transducer bearing probe to the medium, employing an external...
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3558946 |
FORCE TRANSDUCER HAVING HYDRODYNAMIC BEARING SUPPORTED RESPONSIVE ELEMENT
A force transducer having a barrel containing a rotor member which is positioned axially relative to the barrel by the conjoint action of the force being monitored and a resisting or biasing force...
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3549994 |
AUTOMATIC METHOD AND APPARATUS FOR OBTAINING DIFFERENT DILUTIONS FROM BLOOD OR THE LIKE SAMPLES AND PROCESSING THE SAME BY FLUID HANDLING AND ELECTRONICS TO OBTAIN CERTAIN NONELECTRIC PARAMETERS
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3549993 |
CORROSION RATE MEASURING METHOD BY MAINTAINING ELECTROLYTIC CONTACT AND EXCLUDING ANY SUBSTANTIAL OXYGEN CONTACT WITH A TEST SPECIMEN
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3546583 |
ELECTRODE ASSEMBLY FOR DETECTING PARTICLES IN FLUID SUSPENSION
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3546612 |
NON-LINEAR CONDITION SENSOR AND COMPENSATING AMPLIFIER THEREFOR
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3546595 |
NOISE REJECTION CIRCUIT
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3541439 |
APPARATUS FOR DETERMINING THE DEFLECTION OF AN ELECTRON BEAM IMPINGING ON A TARGET
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3539919 |
METHOD FOR MAKING GLASS APERTURE TUBE AND PRODUCT PRODUCED THEREBY
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3538435 |
METHOD AND APPARATUS FOR AUTOMATICALLY MEASURING THE LENGTH OF A LONG MOVING OBJECT BY SENSING STATIC ELECTRIC CHARGES
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3535632 |
APPARATUS FOR DETERMINING THE ENERGY FACTOR IN AIR SEPARATION PLANTS
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3532797 |
APPARATUS FOR MONITORING THICKNESS OF WALL LINING OF ELECTRIC ARC FURNACE
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3531257 |
METHOD AND APPARATUS FOR MEASURING VOLUME VARIATION IN CHEMICAL,PHYSIOLOGICAL AND BIOCHEMICAL SYSTEMS
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3530381 |
VOTING CIRCUIT CONTROL APPARATUS FOR MULTIPLE APERTURE PARTICLE ANALYZING DEVICE
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3529239 |
ELECTRODE ARRANGEMENT FOR A PARTICLE MEASURING APPARATUS
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3523546 |
FLUSHING MEANS FOR FLUID METERING APPARATUS AND THE LIKE
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3524130 |
NON-CONTACT SPARK-GAP CURRENT TOOL-SETTING DEVICE
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3523066 |
DETERMINATION OF COMBINED CARBON IN METALS
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3521045 |
APPARATUS FOR SIMULATING BLOOD-ALCOHOL CONTENT
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3519924 |
MEASUREMENTS SYSTEMS USING CONDUCTIVELY-HEATED PYROELECTRIC ELEMENT
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3518058 |
APPARATUS AND METHOD FOR DETECTING THE CARBON MONOXIDE CONTENT OF A GAS MIXTURE
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3515343 |
CORRECTION ENTRY CIRCUIT
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3502972 |
CONTINUOUS FLOW PARTICLE SIZE ANALYSER APPARATUS HAVING SUSPENSION LEVEL MAINTAINING MEANS
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3502974 |
SIGNAL MODULATED APPARATUS FOR GENERATING AND DETECTING RESISTIVE AND REACTIVE CHANGES IN A MODULATED CURRENT PATH FOR PARTICLE CLASSIFICATION AND ANALYSIS
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3502973 |
COLLATING APPARATUS FOR PAIRS OF ELECTRICAL PULSES PRODUCED BY PARTICLE ANALYZING APPARATUS
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3496463 |
POSITION MONITORING SYSTEM FOR A PULSEMODULATED CHARGED PARTICLE BEAM
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3495437 |
METHOD AND APPARATUS FOR ZERO-SETTING AND CALIBRATING VAPOR-RESPONSIVE DETECTORS
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3493857 |
ANALYZER USING AN OPERATIONAL AMPLIFIER AND RANGE SELECTION MEANS TO VARY THE SENSITIVITY THEREOF
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3488583 |
NON-CONTACTING TRANSDUCER SYSTEM EMPLOYING TWO SEQUENTIALLY SWITCHED ELECTRODES TO SIMULATE VIBRATION
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3484687 |
DISTANCE SENSING SYSTEM FOR RAILROADS BASED ON TRACK INDUCTANCE CHARACTERISTICS
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3481202 |
METERING SIPHON CONSTRUCTION
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3477023 |
APPARATUS FOR MEASURING THE ENERGY AND CURRENT OF AN ACCELERATOR ELECTRON BEAM INCLUDING APERTURED INCIDENT AND EXIT ELECTRODES
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3469184 |
METHOD OF ANALYZING A SUBSTANCE UTILIZING A TUNNELING JUNCTION
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3469157 |
CAPACITIVE SENSING DEVICE FOR DETECTING PASSAGE OF PARTICLES
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