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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 8003009 | Fluorescent and visible penetrant inspection An environmentally friendly penetrant used in non-destructive testing of material includes a vegetable oil fatty acid ester. A first embodiment of the penetrant is a post-emulsifiable fluorescent penetrant, a second embodiment of the penetrant is a heatable fluoresc... | 08/23/2011 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7148066 | Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous ammonia and provide for leak detection in storage vessels. The dye will ... | 12/12/2006 |
| 7145649 | Method of producing an ultra-violet or near ultra-violet light source for non-destructive inspection or testing There is provided an apparatus having at least one LED capable of emitting near ultraviolet or ultraviolet radiation to excite a luminescent material for non-destructive fault testing. The radiation may also be focused using a lens. There is also provided a method f... | 12/05/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 6952487 | Detecting the presence of failure(s) in existing man-made structures A method for capturing at least one image of an existing man-made structure and for detecting the presence of failure(s) in such existing man-made structure including: providing a detectable material on the surface or in an existing man-made structure so that portio... | 10/04/2005 |
| 6521050 | Methods for evaluating advanced wafer drying techniques Methods for evaluating advanced wafer drying techniques are provided. An exemplary method includes applying a solution containing an analytically detectable compound to a substrate prior to a desired drying operation. The method then provides for the insp... | 02/18/2003 |
| 6327897 | Method of introducing an in situant into a vapor compression system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection Leaks are detected in a vapor compression system using fluorescent and daylight visible in situants which are introduced to a system by way of a carrier and dissolved into the systems oil or lubricant. This invention teaches the use of POE oil as a univer... | 12/11/2001 |
| 6193850 | Method for direct measurement of polycarbonate compositions by fluorescence The present invention provides a method for directly determining the concentration of a target species, such as Fries product, in a composition comprising aromatic carbonate chain units. In an exemplary embodiment, the method includes the steps of irradia... | 02/27/2001 |
| 6165384 | Full spectrum fluorescent dye composition for the optimization of leak detection processes A fluorescent dye composition for inclusion in a fluid for leak detection applications is provided which is responsive to a broad range of UVA, blue, and UVA-blue light sources. The composition comprises a mixture of a perylene dye, a naphthalimide dye, a... | 12/26/2000 |
| 5874590 | Diaminofluorescein derivative A compound useful for the measurement of nitrogen monoxide under a substantially neutral condition which is represented by the following formula (I): ##STR1## wherein R1 and R2 represent amino groups that substitute at adja... | 02/23/1999 |
| 5670469 | Methods and compositions for cleaning and decontamination Improved compositions containing a visible coloring agent, such as a pigment or dye, together with a polymer or hydroxylated aliphate alcohol, and an active ingredient defined as a surfactant, a therapeutic agent or biocide, are disclosed. The detectable ... | 09/23/1997 |
| 5554318 | Use of compounds which absorbs and fluoresce in the IR range as crack-detecting agents Compounds from the class consisting of the phthalocyanines, naphthalocyanines, the aminium compounds of aromatic amines, the methine dyes or the azulenesquaric acid dyes, which have their absorption maximum in the range from 600 to 1,200 nm and a fluoresc... | 09/10/1996 |
| 5518656 | Fluorescent detecting agents A fluorescent detecting agent comprising a naphthalene compound of formula (I) ##STR1## wherein R1 and R2 may be the same or different and each represents an alkyl group of 4 to 8 carbon atoms and/or a pyraxoline compound o... | 05/21/1996 |
| 5336714 | Water-dissipatable polyesters and amides containing near infrared fluorescent compounds copolymerized therein Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for mark... | 08/09/1994 |
| 5270116 | Process for fluorimetric monitoring of functional coatings and compositions and fluorescent agents therefor A method for monitoring the coating weight, uniformity, defects or markings present in a coating of a composition applied to a substrate comprises the steps: a) providing a substrate with a functional coating of a composition comprising an effective amoun... | 12/14/1993 |
| 5158703 | Resin composition for ultraviolet luminescent screen Disclosed is a resin composition for ultraviolet luminescent screen comprising one or more of luminescent compound represented by the formula (I): ##STR1## wherein X is ##STR2## wherein R1, R2, R3 and R... | 10/27/1992 |
| 5149453 | Method for detecting leakage in a refrigeration system A leak detectable refrigeration composition comprising an effective amount of a fluorescent, alkyl substituted perylene dye dissolved in a refrigeration oil and a polyhalogenated hydrocarbon refrigerant, is prepared for use in refrigeration systems in aut... | 09/22/1992 |
| 5145750 | Rubber product identification by tagging The present invention provides for a method for positive product identification using tagging materials such as barium sulfate, manganese dioxide or mixtures thereof. Such materials may be employed, for example, in the dusting agent used in roofing materi... | 09/08/1992 |
| 5073295 | Encapsulated fluorescent whitening agent, photoativator or anti-microbial agent There are disclosed coated active substances and a process for the preparation thereof, wherein said active substances are dyes, fluorescent whitening agents, photoactivators and/or textile microbicides, if appropriate together with extenders, dispersants... | 12/17/1991 |
| 5039613 | Reagents used in a method of classifying leukocytes by flow cytometry Three methods for classifying leukocytes with a flow cytometer by optical measurements on fluorochrome-stained blood cells or those which have been so treated as to provide varying intensity in forward scattered light are useful in the practice of clinica... | 08/13/1991 |
| 4858465 | Water washable contaminant detection and labeling compositions and method for utilizing same Water washable substantially biodegradable compositions having excellent sensitivity and high stability, for use in non-destructive testing of objects for contaminant detection and identification. The contaminant identifier composition consists essentiall... | 08/22/1989 |
| 4759211 | Detection of defects on structures The present invention relates to a method for detecting defects in metal structures and welds, especially under-water structures. The method involves applying to the surface of the suspected area of the defective structure a fast curing, cold cure impress... | 07/26/1988 |
| 4741860 | Adhesion promoters containing optical brightener A composition comprising a chlorinated polyolefin and an optical brightener is disclosed. The compositions are useful as detectable adhesion promoters for polyolefin substrates. The compositions are applied as a coating to the polyolefin substrate and the... | 05/03/1988 |
| 4724094 | Fluorescent magnetic composition and method of making and using same A method of preparing a fluorescent magnetic composition useful in non-destructing testing of metal work pieces. The method of the invention utilizes a plasticizer in order to effect a more complete encapsulation of fluorescent pigment and magnetic partic... | 02/09/1988 |
| 4641518 | Process for the non-destructive inspection of surface defects In a process for the non-destructive inspection of surface defects, initially a solution with one or more dyes substantially having no emission under UV-light are applied and excess solution is removed after the dye has penetrated the surface defects, the... | 02/10/1987 |
| 4621193 | Fluorescent penetrant crack detection A method for detecting surface defects in parts by entrapped fluorescent dye penetrant uses a novel applicator which conveys liquid fluorescent dye penetrant by capillary action from a reservoir within the applicator to the surface of the object being tes... | 11/04/1986 |
| 4536322 | Fluorescent corrosive fluoride solution A composition of matter including an aqueous solution of hydrofluoric acid or ammonium fluoride and a dye that fluoresces when illuminated by ultra-violet light. Spilled corrosive fluoride solutions are thereby rendered easily detectable by subjecting the... | 08/20/1985 |
| 4444701 | Mold release agent composition and improved molding method An improvement in methods and compositions for molding plastics in which the waxy release agent is treated with an indicator dye invisible under normal light but visible under UV illumination, so that completeness and adequacy of the initial application a... | 04/24/1984 |
| 4400618 | Method of detecting and analyzing damage in printed circuit boards A method of detecting flaws in a printed circuit board laminate having drilled holes wherein a penetrating solution containing a UV fluorescing dye is applied to the laminate to fill the drilled holes and flaws. Excess penetrating solution is removed from... | 08/23/1983 |
| 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 |
| 4377492 | Post emulsifiable fluorescent penetrant A post emulsifiable penetrant composition for applications and entry into flaws in solid surfaces consists essentially of (a) a first solvent ingredient comprising a high boiling point aromatic hydrocarbon, (b) a second solvent ingredient selected from the gro... | 03/22/1983 |
| 4375384 | Method for penetrant inspection employing an etchant penetrant A method for detecting cracks and surface discontinuities in an object which comprises applying to the surface of an object having a ground surface and smeared metal, an etchant penetrant solution capable of removing said smeared metal covering the openin... | 03/01/1983 |
| 4365516 | Ultrasonic couplant gel compositions and method for employing same Substantially non-pollutant and non-toxic 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 comprising a (1) poly(oxypropylene) poly(oxyethylene) ... | 12/28/1982 |
| 4361035 | Nonstaining leak tracer solution and method employing same Combination of a nonionic oxyalkylated alcohol surfactant and an engine fuel, e.g. a 50--50 mixture, by volume, of such surfactant and an aircraft engine fuel such as JP-4 jet fuel, consisting essentially of a mixture of gasoline and kerosene, which is mi... | 11/30/1982 |
| 4341223 | Fluoresceable composition and method of determining fluid flow A fluoresceable composition in dosage unit form and method for determining fluid or blood flow are provided for medical, surgical or diagnostic purposes, using 6, 7-dihydroxycoumarin 6-glucoside which in vivo is invisible in natural light and is highly vi... | 07/27/1982 |
| 4326981 | Nonstaining leak tracer solution and method employing same Leak tracer solution particularly effective for inspection of aircraft fuel tanks and lines prior to use, without staining painted surfaces of the aircraft consists essentially of an aqueous solution containing not more than about 10%, generally about 0.1... | 04/27/1982 |
| 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 |
| 4273671 | Fluorescent detection of flaws In a method for detecting flaws in the surface of a workpiece, initially microcapsules containing a fluorescent dye are deposited on the surface. After removal of excess microcapsules from the surface in order to reduce background fluorescence, the surfac... | 06/16/1981 |
