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3857290 SOLDERABILITY TESTING  
The solderability of plated through holes in a printed circuit board is treated by applying solder to one end of the hole and measuring the time it takes to travel through the hole. This time is a...
3841163 TEST DUMMY SUBMARINING INDICATOR SYSTEM  
A test apparatus for indicating the degree of submarining of an anthropomorphic dummy under deceleration. A plurality of strain gauges are embedded in a predetermined pattern in each of a pair of...
3836330 METHOD OF RAPIDLY DETERMINING THE PLASTICITY INDEX OF CALCEREOUS MATERIALS  
The plasticity index of calcareous materials is rapidly determined by drawing up a quarry diagram representing the calcium carbonate percentages and plasticity indices of representative samples...
3831451 MEANS FOR AVOIDING STATIC FRICTION  
A pressure driven altimeter is provided with an A.C. torquer to impart low amplitude torsional oscillations to a drive shaft of the gear train between the aneroid mechanism and the output pointer....
3818755 TESTING TIRES  
A method for simulating a tire burst in a pneumatic tire comprising preforming a hole in the sidewall of the tire and plugging the hole with a hollow rubber bung closed at the end only, the closed...
3811404 MEASUREMENT INSTRUMENT WITH DEVICE FOR INDICATING THE LIMITS OF TOLERANCE  
A measuring instrument including means for indicating tolerance limits, having a measurement pointer which moves over a scale provided on a panel of the instrument from a position of rest to a...
3811780 CHEMICAL ANALYSIS CUVETTE  
Improved components, such as a cuvette, are disclosed in the specification.
3807350 GEAR BAND SELECTOR TACHOMETER  
The following specification describes a speedometer dial assembly including a stationary front plate having a plurality of windows through which selected speed and gear indicia carried on a...
3802272 AUTOMATIC DISSOLUTION RATE DETERMINATOR  
An automatic dissolution rate determinator for determining dissolution rates of pharmaceutical tablets, capsules or the like includes a plurality of dissolution test chambers connected by...
3791221 DISSOLUTION TESTING DEVICE  
The specific disclosure provides a dissolution rate testing device for tablets and capsules comprising a closed chamber having a solution medium therein, a removable holder positioned in the...
3791222 DISSOLUTION TESTING DEVICE  
The specific disclosure provides a dissolution rate testing device for tablets and capsules comprising a closed chamber having a solution medium therein, a removable holder positioned in the...
3786684 PIPELINE INSPECTION PIG  
A self-contained, fully instrumented pipeline inspection pig is disclosed herein. The pig is particularly adapted to be (1) placed in a cross-country or transmission pipeline at a first location...
3787828 SELF-BALANCING INSTRUMENT  
A recording and/or indicating instrument adapted to receive a measured quantity in the form of an electrical signal produced by a primary transducer such as a thermocouple, and to compare such...
3787183 METHOD OF ANALYZING CATALYST ACTION  
Small samples of catalyst are individually segregated in durable perforate containers located at known positions within the main body of catalyst. After a suitable period of time the samples are...
3784310 SYSTEM AND METHOD FOR IMPROVED OPERATION OF A COLORIMETER OR LIKE OPTICAL ANALYSIS APPARATUS  
New and improved system and method for improved operation of a colorimeter or like device are provided and comprise the processing of the colorimeter output data in such manner that a separating...
3779085 MEANS AND METHOD OF TESTING EXPANSIVE CONCRETE  
A method of testing expansive concrete wherein a sample of concrete is permitted to expand while subjected to a predetermined restraint, and subsequently to contract, measurements being made of...
3769843 STATISTICAL DESIGNED EXPERIMENTS  
Method of evaluating tread wearing compositions for a vehicle tire, comprising: arranging segments of a different tread wearing compounds circumferentially about a tire body to form a continuous...
3768314 MODULAR GAUGE HOUSING  
The following specification describes front and rear annular housing sections forming a housing assembly for receiving a gauge with the bezel of the gauge held between the two sections, and the...
3768313 METHOD OF DETERMINING THE RISK OF EXPLOSION OF A PREFERABLY GASEOUS MEDIUM AND APPARATUS FOR CARRYING OUT THIS METHOD  
The risk of explosion of a preferably gaseous medium is determined by measuring a parameter, which is determinative of the inflammability of the medium, by means of a probe, which comprises an...
3745816 ABLATION ARTICLE AND METHOD  
An ablation article, such as a conical heat shield, having an ablating surface is provided with at elast one discrete area of at least one seed material, such as aluminum. When subjected to...
3745001 LIQUID LEVEL INDICATOR  
A liquid level indicator for a steam boiler or the like having a differential pressure unit (DPU) connected from the top and the bottom of the boiler. A static pressure sensor is also connected...
3742190 APPARATUS FOR LABORATORY TESTING OF SUSTAINED RELEASE DRUGS  
An apparatus for lab testing sustained release drugs, characterized by the fact of consisting of a thermostatic chamber accurately regulated to a temperature falling within a very restricted...
3736789 TEST AND CALIBRATING DEVICE FOR INTRA-OCULAR PRESSURE INSTRUMENTS  
An eyeball simulating sphere enclosed within a block and exposed through an oval opening in at least one face of the block, is internally pressurized by a squeeze bulb to any desired pressure in...
3727455 IMPULSE TRANSMITTER FOR DYNAMIC DEVICES FOR TESTING PIECES OF ORDNANCE  
An impulse transmitter for dynamic devices for testing pieces of ordnance to simulate the recoil of the piece without actual firing. The impulse transmitter includes a housing having a cylinder...
3727450 GAS COMPOSITION ANALYSIS  
Gas analysis apparatus comprising gas analyzers and calibration units, each having a variable characteristic, is adjusted by two steps. Firstly, the characteristics of the calibration units are...
3722103 ADJUSTABLE ANTHROPOMETER  
An anthropometric device designed to provide accurate measurements for evation of crew station design. The device can be adjusted to simulate various anthropometric dimensions. Modified...
3718978 PIPELINE SURVEY VEHICLE  
The invention is directed to a vehicle adapted to be inserted within a pipeline or conduit, such as a buried gas main, having pipeline characteristic sensing means mounted upon the vehicle for...
3718038 FORCE MEASURING INSTRUMENT  
A force transducer having a force sensing deflection structure adapted to receive and be deflected by a force to be measured, a device providing a measurement of deflection, and deflection...
3710620 TESTING OF PHOSPHOR BRONZES  
The invention is predicated on the discovery that phosphor bronze strip may or may not have a thin coating of an oxide thereon which is formed during annealing of the strip. Coating, when present,...
3699821 DETERMINATION OF VOIDS TO SOLIDS RATIO IN POROUS MATERIALS  
An etchable surface on which a pattern representing solids and voids is etched to remove a portion of the surface which, in respect to the weight of the total etchable surface, represents the...
3693458 RESIN FLOW TEST APPARATUS AND METHOD  
An apparatus and method for testing the performance of a thermo-setting resinous composition said apparatus comprising two cooperatively engageable sections, one of said sections having a series...
3691846 MEASURING INSTRUMENT EQUIPPED WITH REMOVABLE MEASURED VALUE TRANSMITTER PROBE  
There is disclosed a measuring instrument or device equipped with a removable measured value transmitter probe, the instrument being arranged at a "receptacle", as such term is defined herein, and...
3691845 DATA MONITORING SERVO  
An electromechanical data monitoring device for transmitting the reading of a sensor to the rotary input shaft of a conventional recording instrument. The data monitoring device is adapted to be...
3690175 MECHANISM FOR PREDICTING FOOD TEMPERATURES  
Apparatus for predicting the surface temperature of packaged foodstuff, particularly meat, when the packages are exposed to a refrigerated environment. In the preferred form, it utilizes a model...
3686959 METHOD AND APPARATUS FOR DETERMINING THE RELATIVE PROPORTIONS BY WEIGHT OF ASPHALT COMPONENTS  
A method and an apparatus to determine the relative proportions by weight of the components of an asphalt sample, in which successively the sample is weighed, the gravel with mortar and bitumen...
3686940 ULTRAVIOLET TESTING APPARATUS WITH SELECTIVE MIRRORS FOR REMOVING INFRARED RADIATION  
A water cooled tube has radial fins that extend to the surface of a surrounding cylindrical mirror that passes ultraviolet radiation and visible light while reflecting infrared radiation. Planar...
3677092 VOLUME METERING APPARATUS FOR CIRCULATORY ASSIST PUMPS  
An electronic transient pulse operated volume metering circuit is disclosed which produces a visually readable volume indication derived from signals representative of the stroke of a blood pump...
3675493 GROUT EXPANSION PRESSURE METER AND METHOD FOR USING SAME  
The invention relates to a grout expansion pressure meter and the method for its use. Grout containing a fluidifier is poured into a container and the pressure is measured at various time...
3672228 METHOD AND APPARATUS FOR FORMING A SHALE CAKE AND MEASURING THE RESISTIVITY AND DENSITY THEREOF  
Method and apparatus for forming a shale cake of a standardized volume from random samplings of shale cuttings obtained from a well, and wherein the electrical resistivity and density of such...
3665768 DEVICE OF MEASURING FLUID CHARACTERISTIC OF POWDERED OR GRANULAR MATERIALS  
A device for measuring characteristics of powdered and granular materials which includes apparatus for measuring the angle-of-repose, cohesiveness, aerated bulk density, packed bulk density,...
3665765 BI-MATERIAL CONDITION SENSING MEANS  
A bi-material temperature and/or humidity sensor including a circular disc which is mounted in fixed relation about the periphery. A flexible metal base member has a second material bonded to the...
3662601 HYGROMETER  
An apparatus to convert any extremely small unnoticeable non linear expanding and contracting movement exhibited by a sensing element, such as a sensing element that expands in a non linear manner...
3653257 DUAL TORQUE INDICATOR  
A meter for indicating two related functions together with the summation of the values of the two functions by means of a pair of coaxially, separately driven pointers cooperating with a scale on...
3643493 MEASURING SPECIFIC SURFACE OF POWDERS  
Method and apparatus for measuring the specific surface of pulverized materials successively feeding a predetermined weight of pulverized material to a transparent container. The material is then...
3643491 DERIVATIVE DIFFERENTIAL SCANNING MICROCALORIMETER  
A scanning differential microcalorimeter in which energy is differentially supplied to a reference and sample in an effort to equalize their temperatures. A signal proportional to the difference...
3643512 METHOD AND APPARATUS FOR WORKING SOIL SAMPLES  
A method and apparatus for working soil samples to determine characteristics thereof. The soil is formed into a strand which is circular in cross section and the diameter of the strand is...
3643508 DEVICE FOR REMOVING GAS AND FURNACE CHARGE PROBES FROM SHAFT FURNACES AND/OR FOR TAKING TEMPERATURE AND GAS PRESSURE MEASUREMENTS IN THE INTERIOR SPACE OF THE FURNACE  
A lance for removing gas and furnace charge probes from shaft furnaces, and in particular from blast furnaces. The lance is also suitable for taking temperature and gas pressure measurements in...
3636772 DEVICE FOR MEASURING THE FRIABILITY OF PARTICULATE SOLID MATERIALS  
A method and a device for measuring the friability of particulate solid materials. The device comprises a chamber, having an inlet for gas and an outlet for fractured particles of the solid...
3633200 VERTICAL SCALE INDICATOR  
A vertical scale indicator has a scale, and a pair of mechanism assemblies positioned side-by-side with indices on flexible bands moving along opposite sides of the scale to indicate conditions....
3631607 MOCK CIRCULATION  
The invention disclosed herein relates to a device for simulating the hydraulic impedance of the blood circulatory system for the purpose of evaluating artificial hearts, heart valves, heart...