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| Number | Title | Issue Date |
| 6746630 | Oxygen scavengers independent of transition metal catalysts The claims are drawn to a method of detecting seal breakage or incomplete seal formation in a package, said method comprising the steps of: (i) providing said package, prior to sealing, with a strip or ring of an indicator comprising an oxygen scavenging composition... | 06/08/2004 |
| 4943559 | Device comprising a temperature sensor A temperature sensor comprises a thin layer of material the composition of which varies gradually over the layer thickness. The material is superconductive below a critical temperature the value of which depends on the composition of the material. The lay... | 07/24/1990 |
| 4941997 | Amphiphilic azo dyes and molecular aggregates thereof The invention relates to compounds of formula I ##STR1## wherein R1 is C12 -C30 alkyl, R2 is hydrogen or C1 -C30 alkyl, R3 is C1 14 Calkyl or C1 -C3 | 07/17/1990 |
| 4784959 | Method of detecting hydrocarbon fuel leaks A method of and apparatus for detecting fuel leaks employing color variable indicators. The method comprises the steps of preparing and applying a water soluble non-staining indicator dye to a test surface, observing color changes indicative of hydrocarbo... | 11/15/1988 |
| 4756854 | Method and apparatus for detecting hydrocarbon fuel leaks A method of and apparatus for detecting fuel leaks employing color variable indicators are disclosed. The method comprises the steps of preparing and applying a water soluble nonstaining indicator dye to a test surface, observing color changes indicative ... | 07/12/1988 |
| 4615828 | Method and apparatus for detecting hydrocarbon fuel leaks A method of and apparatus for detecting fuel leaks employing color variable indicators. The method comprises the steps of preparing and applying a water soluble non-staining indicator dye to a test surface, observing color changes indicative of hydrocarbo... | 10/07/1986 |
| 4392982 | Extended biodegradable dye penetrant composition A liquid dye penetrant composition for use in non-destructive testing of objects to locate cracks and other defects or flaws therein, said composition comprising (1) a nonionic surfactant, such as an oxyalkylated aliphatic alcohol, (2) a small amount of a... | 07/12/1983 |
| 4383042 | Process for detecting soft spots in aluminum A process and compositions for detecting improperly processed areas in heat treated aluminum are disclosed. A solution containing an acid or a base and an oxidizing agent and, if desired, a color enhancing ingredient is applied to an aluminum object to pr... | 05/10/1983 |
| 4295362 | Pentaerythritol in dry developers A method and composition for detecting surface flaws in workpieces by means of the penetrant inspection process, the invention being concerned with an improved dry developer composition for use in such process, the developer containing substantial amounts... | 10/20/1981 |
| 4269068 | Ultrasonic couplant compositions and method for employing same Biodegradable water washable composition in the form of a gel for use in non-destructive ultrasonic inspection of surface and subsurface flaws and discontinuities in bodies, and which is stable and heat resistant, such composition consisting essentially o... | 05/26/1981 |
| 4204978 | Tooth crack detector A composition for detecting normally invisible cracks and splits in teeth, both in situ or in vitro. A detector solution contains a dye adapted to selectively stain such cracks and splits, advantageously methyl violet, a small amount of a surfactant, pref... | 05/27/1980 |
| 4160375 | Indicator compositions A water washable, wash resistant biodegradable dye penetrant composition is described. It comprises one or more dyes and at least 70% of a substantially linear primary alcohol ethoxylate containing 2 to 4.5 ethoxy groups per molecule.... | 07/10/1979 |
| 4152592 | 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 therein, said composition consisting essentially of an organi... | 05/01/1979 |
| 4124484 | Developer composition and process for penetrant inspection Dry developer composition in powder form and process for using same in the inspection of metal surfaces for cracks and defects open to the surface by the penetrant process. The powder composition of this invention has special significance in providing eas... | 11/07/1978 |
| 4090402 | Slow-solubility inspection penetrant composition containing a solubility accelerator An inspection penetrant process and composition therefor in which the penetrant is formulated from a low-solubility liquid, and a solubility accelerator material is added to the formulation to enhance the washability of the penetrant to provide for more r... | 05/23/1978 |
| 4089213 | Nonsurfactant remover composition for inspection penetrants An improved inspection penetrant process employing a dyed liquid nonsurfactant-type penetrant, a remover, and a water rinse, in which the remover consists of a water solution of a nonsurfactant-type solvency accelerator which is selected from the group co... | 05/16/1978 |
| 4069419 | Dry developer composition for dye penetrant inspection and method for employing same Dry developer composition in powder form for use in penetrant inspection of surface flaws in bodies, consisting essentially of silica, preferably fumed silica, e.g. the material marketed as Cab-O-Sil M-5, and talc, particularly the powder marketed as Dese... | 01/17/1978 |
| 4049568 | Non-dripping heat resistant dye penetrant Biodegradable water washable dye penetrant composition in the form of a gel for use in non-destructive dye penetrant inspection of parts, and which can be applied to part surfaces at varying angles without dripping, and being resistant to decomposition an... | 09/20/1977 |
| 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 compositions of a penetrant, cleaning fluid and a developer, whe... | 12/28/1976 |
| 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 excess of liquid, applying on to the surface a developer suc... | 12/07/1976 |
| 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 parts in the so-called solvent-remover inspection penetrant pr... | 11/16/1976 |
| 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 therein, said composition consisting essentially of an organi... | 02/17/1976 |
| 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 acid ingredient dissolved to a concentration within the r... | 01/06/1976 |
