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4002905 |
Penetrant flaw inspection method
A water washable substantially biodegradable dye penetrant composition having excellent sensitivity and high stability, for use in non-destructive testing of objects to locate voids and defects...
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4000422 |
Method of luminescence detection of surface discontinuities
A method for detection of surface discontinuities by luminescence which consists in the successive treatment of the surfaces of materials subject to testing and inspection with the following...
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3995483 |
Method for making visible defects in surfaces
A method and a device for making visible defects in surfaces, in particular hot surfaces, by applying to the surface a penetrating liquid comprising a dye that soaks in the defects, removing the...
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3992319 |
Inspection penetrant process using solvency-inhibited remover composition
A solvent-remover composition and process in which a glycol liquid or water containing an alcohol or glycol-ether accelerator solvent is used as a solvent to remove surface penetrant from test...
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3988924 |
Method of regenerating an inspection penetrant solvent
Water solutions of certain glycol-ether-type materials having negative temperature coefficients of water solubility are used as solvent removers in an inspection penetrant process. The...
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3987670 |
Blade wear measuring system
A displacement transducer is manually applied to the cutting surface of a diamond wheel to measure the fixed reference distance and thus degree of wheel wear. The output of the transducer is...
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3981185 |
Postemulsifiable dye penetrant system and method for using same
Postemulsifiable dye penetrant inspection system and method employing substantially biodegradable dye penetrant compositions and emulsifiers, for use in non-destructive testing of objects to locate...
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3978717 |
Inhibited pre-wash stripper composition for water-washable inspection penetrants
A pre-wash stripper composition for use in the water-washable inspection penetrant process consisting of water saturated with dissolved penetrant. The saturated solution cannot dissolve more...
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3973433 |
Method and relative apparatus for controlling the cutting capacity of the grinding wheel of a grinder
Apparatus for checking the cutting capacity and controlling the dressing of a grinding wheel comprising a device to measure the sizes of the pieces being machined, a threshold unit connected to the...
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3958940 |
Method for the removal of penetrant
An improvement in the method of inspecting a test piece for surface flaws in which an oily based dyed penetrant is applied to the test piece and subsequently the test piece is treated with an...
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3949601 |
Open-loop water-washable inspection penetrant process
A water-washable inspection penetrant process in which the penetrant is recovered for re-use and the used wash water remains sufficiently pure to be discharged into water disposal systems without...
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3948092 |
Method of recovering and re-cycling water-washable inspection penetrants
In the water-washable inspection penetrant process, a method and means for recovery of used penetrant in which penetrant-coated test parts are spray-washed in a pre-wash stripper step with water...
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3946597 |
Flaw penetrant test panel
A flaw penetrant test panel having a sheet metal surface in which are impressed tiny or microscopic flaw simulating cavities distributed over the test surface to receive one or more penetrants...
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3940976 |
Method of determining the suitability of continuously cast slabs of Al- or Al-Si-killed soft steel for producing cold rolled sheets to be tinned
A method of determining the suitability of continuously cast slabs of Al- or Al-Si-killed soft steel for producing cold rolled sheets to be tinned, wherein from the cast strand a transverse sample...
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3938382 |
Method and apparatus for detecting shape of flat products
A method of detecting the shape of flat products, which comprises applying, through an exciter, to an examined objects in its width, exciting signal generated in an exciting signal generator, as an...
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3939092 |
Water washable dye penetrant and method for utilizing same
A water washable substantially biodegradable dye penetrant composition having excellent sensitivity and high stability, for use in non-destructive testing of objects to locate voids and defects...
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3935731 |
Method and means for improving flaw entrapment efficiency in water-washable inspection penetrants
An improvement in inspection penetrant processes for the detection of surface defects in test bodies, wherein a water-washable penetrant of the balanced surfactant/synergist type or of the...
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3931733 |
Method and means of accelerating removal of background entrapments in the inspection penetrant process
Process and apparatus for inspection penetrant detection of surface flaws in test parts in which the parts are sequentially process by the steps of (1) applying a dyed liquid penetrant to the test...
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3931732 |
Sharp edge tester
A hand held tool for testing the sharpness of edges to determine the presence or absence of a safety hazard in which a rotatable mandrel is driven by a torque spring at a specified velocity for a...
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3930407 |
Water-washable inspection penetrant employing mineral solvent and a fatty acid solubility promoter
Water-washable inspection penetrant compositions which avoid the use of conventional solubilizing detergents. The penetrants comprise an oil vehicle containing a dissolved indicator dye and a fatty...
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3929664 |
Water-washable inspection penetrant employing triglycerides and polyglycerides of fatty acids
A water-washable inspection penetrant composition and process in which a low-solubility fatty oil is used as the penetrant vehicle. The solvent liquids of the invention provide enhanced stability...
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3927551 |
Fractured glass testing panel for dyed liquid penetrants
A testing device for dyed liquid penetrants consisting of a glass panel grit-blasted with a grit of pre-determined mesh. The grit-blasted surface of the glass panel not only exhibits a roughness...
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3926044 |
Closed-loop water-washable inspection penetrant process
A closed-loop water-washable inspection penetrant process in which both the penetrant and the wash water are recovered for re-use. A non-surfactant-type low-solubility penetrant which has been...
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RE28605 |
Penetrant inspection process and compositions
Post-emulsifiable inspection penetrant compositions and process for using same, in which the penetrant liquid contains, in addition to an indicator dye, a solvent ingredient which acts to provide a...
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3915886 |
Water washable dye penetrant composition and method for utilizing same
A water washable substantially biodegradable dye penetrant composition having excellent sensitivity and high stability, for use in non-destructive testing of objects to locate voids and defects...
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3912653 |
Water-soluble inspection penetrant composition employing dimethyl naphthalene
Water-emulsifiable and gel-forming inspection penetrant compositions consisting essentially of four ingredients used in appropriate relative concentrations, the ingredients being: (1) a light...
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3904545 |
Liquid dye penetrant composition containing a wax
Dye penetrant for detecting cracks and flaws in the surface of an object containing a wax, for example paraffin wax, a volatile solvent, preferably 1, 1, 1-tri-chloroethane, and a dye which is...
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3902358 |
Apparatus for evaluating and testing the sharpness of points
An instrument for testing the degree of sharpness of points by evaluating the depth to width ratio of the point and the strength or rigidity of the material of the point being tested comprises a...
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3899450 |
Dye penetrant composition containing a volatile degreaser-type solvent
A liquid dye penetrant composition for detecting cracks and flaws in a specimen surface, consisting essentially of an N-alkyl-2-pyrrolidone, a dye soluble in said pyrrolidone and about 50 to 97...
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3896664 |
Enhanced stability water washable penetrant composition and process
A water-washable inspection penetrant composition and process in which a low-solubility solvent liquid is used as the penetrant vehicle. The solvent liquids of the invention provide enhanced...
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3895526 |
Method for measuring the cutting capacity of the grinding wheel of a grinder
A method for checking the cutting capacity and controlling the dressing of a grinding wheel including determining the value of at least one quantity representative of the flexion state and of the...
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3889520 |
Fluidic system for monitoring machine tool wear during a machining operation
A machine tool movable toward and away from a workpiece carries a nozzle for discharging fluid under pressure onto the workpiece. Changes in pressure of the discharging fluid are monitored as an...
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3879993 |
Method and apparatus for inspecting glass containers
An apparatus and method for detecting rim surface defects in glass containers wherein the edge of a loop of a thin, flexible strip of mechanically durable tape is placed in contact with the sealing...
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3872285 |
CONTROL SYSTEM FOR SENSING THE VIBRATION AND LATERAL FORCE ON A CUTTING TOOL
A system for sensing the vibration and lateral force in a cutting tool for the purpose of keeping both these operating parameters within tolerable limits. A piezoelectric crystal is mounted in the...
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3869802 |
GAUGING APPARATUS
Apparatus for measuring the angular offset of one portion of a structure relative to another portion of the structure includes two displacement-sensitive transducers disposed so as to sense the...
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3862047 |
METHOD AND COMPOSITION FOR DETECTING FLAWS IN METALLIC SURFACES, HOLES AND OTHERWISE
A procedure for examining and inspecting drilled holes or other metal surface conformations by applying a castable, two component, magnetically active material comprised of room temperature...
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3856465 |
LEAK DETECTION COATING FOR AIRCRAFT FLEXIBLE FUEL CELLS
A fuel soluble coating facilitates the detection and location of leaks in aircraft flexible fuel cells. This coating contains an oil soluble dye and is applied like a paint to the exterior surfaces...
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3845658 |
METHOD OF DETECTING FLAWS IN THE EXTERIOR SURFACES OF HOLLOW WORKPIECES
A method for detecting flaws in external surfaces of hollow workpieces employing sized particles carrying a liquid penetrant for transfer thereof to such external surfaces to coat the same with the...
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3841149 |
TOOL WEAR DETECTOR
A tool wear detector wherein a tool wear condition which calls for a tool change is determined by establishing a reference value representing the broadband vibrational energy output of the tool...
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3834615 |
METHOD FOR MONITORING MACHINING CONDITION OF MACHINE TOOL
In a machine tool having a work holder and a cutting tool which is brought into cutting engagement with a workpiece held on the work holder to machine the same, the reaction force on the cutting...
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3830094 |
METHOD AND DEVICE FOR DETECTION OF SURFACE DISCONTINUITIES OR DEFECTS
Surface discontinuities or defects such as cracks and orifices are detected by applying a penetrating fluid, preferably a liquid, to a test surface so as to cause the liquid to penetrate any minute...
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3819916 |
METHOD FOR MONITORING MACHINING CONDITION OF A MACHINE TOOL
In a machine tool having a work holder and a cutting tool which is brought into cutting engagement with a workpiece held on the work holder to machine the same, the reaction force on the cutting...
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3817090 |
CORING TESTER FOR ELASTOMER
A reciprocating carriage is adjustably mounted on a support column above a base on which a rubber stoppered bottle is disposed. The carriage reciprocates on slide rods mounted on an indexing...
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3809870 |
METHOD AND APPARATUS FOR MONITORING CONDITION OF CUTTING BLADES
Method and apparatus for monitoring the condition of a cutter on a cutting machine while it is being used and for indicating when the cutter wear rate has increased sufficiently to economically...
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3810005 |
FLAW DETECTION SYSTEM USING MICROWAVES
A method and apparatus for the detection of flaws in pieces of lumber or like material in which there may be wide variations in density within each piece, or among the pieces being examined. Lumber...
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3807225 |
MEASUREMENT OF EDGE SHARPNESS
A device for taking an impression of the orifice edge profile of an orifice plate so that the edge sharpness can be measured, comprises a support bar having clamps for rigidly fixing the bar to the...
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3803485 |
INDICATING COATING FOR LOCATING FATIGUE CRACKS
Crack propagation through a substantially electrically nonconductive coating bonded to an electrically conductive base is monitored or detected by providing a multitude of reservoirs filled with an...
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3800598 |
METHOD FOR EXAMINING THE INNER SURFACE OF A HOLLOW MEMBER
A method of examining the inner surface of a hollow member is disclosed. The method includes inserting a test body into the hollow member and pressing the test body against the inner surface of the...
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3793627 |
AUTOMATIC SONIC DETECTION OF CHIPPED CUTTING TOOLS
A cutting tool wear signal is obtained in known manner by sensing the sonic vibrations generated by the cutting action and extracting the high frequencies indicative of cutting tool wear. A chipped...
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3791198 |
TESTING PANEL FOR INSPECTION PENETRANTS HAVING CRACKS OF CONTROLLED DEPTH AND WIDTH
A test panel which may be used for evaluating inspection penetrant crack detection performance, comprising essentially a soft, malleable metal substrate coated with a brittle surface layer of...
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