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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 |
| 5817160 | UV absorbing glass UV absorbing glass is prepared by mixing ultrafine colloidal cerium oxide with glass-forming substances during the fabrication of the glass. An aqueous colloidal dispersion containing 1-20 weight percent 10-20 nm cerium oxide particles, optionally includi... | 10/06/1998 |
| 5776490 | Complex protein-walled microcapsules containing lipid-walled microcapsules and method for producing same Complex protein walled microcapsules (40) incorporate lipid-walled microcapsules (48) that include constituents to be retained in the presence of hydration such as water soluble vitamins and minerals. The protein walled microcapsules (40) are cross-linked... | 07/07/1998 |
| 5756482 | Method of attenuation of nervous system damage A method is disclosed for attenuation of nervous system damage after injury which comprises administering therapeutic amounts of PREG, PREG-S, or esters of PREG or PREG-S together with an enhancer of secretory processes in non-neural cells such as a bacte... | 05/26/1998 |
| 5705521 | Use of allosteric hemoglobin modifiers in combination with radiation therapy to treat carcinogenic tumors A family of compounds has been found to be useful for right-shifting hemoglobin towards a low oxygen affinity state. The effect has particular application in radiation oncology applications. The compounds are capable of acting on hemoglobin in whole blood... | 01/06/1998 |
| 5690691 | Gastro-intestinal pacemaker having phased multi-point stimulation A portable or implantable gastric pacemaker includes multiple electrodes that are positionable on the inner or outer surface of an organ in the gastro-intestinal tract and which are individually programmed to deliver a phased electrical stimulation to pac... | 11/25/1997 |
| 5677330 | Medical uses of allosteric hemoglobin modifier compounds in patient care A family of compounds has been found to be useful for right-shifting hemoglobin towards a low oxygen affinity state. The effect has particular application in a wide variety of treatments including hypoxia, hypothermia, ischemia, stroke, ARDS, COPD, surgic... | 10/14/1997 |
| 5674677 | Immunoassay technique using histidine tags, metals, and chelating agents Two amino acid sequences are joined together using an electron acceptor moiety and a linking moiety, such as a chelating agent. In particular, an amino acid sequence specific for binding to a material interest is linked to an enzyme which acts on an indic... | 10/07/1997 |
| 5651422 | Universal-fit, quick-connect power drive/steer attachment for wheelchair A power drive/steer attachment for a wheelchair having a framework supporting a plurality of front and rear wheels and a seat for accommodating an operator, is adapted for use with a motive source and includes a frame for attachment to and detachment from... | 07/29/1997 |
| 5574022 | Method of attenuating physical damage to the spinal cord A method is disclosed for attenuation of nervous system damage after injury which comprises administering therapeutic amounts of PREG, PREG-S, or esters of PREG or PREG-S together with an enhancer of secretory processes in non-neural cells such as a bacte... | 11/12/1996 |
| 5530111 | Chemical modification of shaped hydrogels in non-aqueous medium A method is described for the chemical modification of pre-shaped hydrogels in non-aqueous medium. The conditions permit the reaction of highly expanded, porous hydrogel particles, such as spherical beads, using pseudo homogeneous reaction conditions in t... | 06/25/1996 |
| 5527667 | Water sample viral contamination detection system Viral contamination in water samples is detected using a medium which includes both a substrate for ଲ-galactosidase and E. coli with elevated levels of intracellular ଲ-galactosidase. The substrate is chosen to undergo a detectable change (e.g.... | 06/18/1996 |
| 5523398 | Cellulose derivatives with a low degree of substitution The invention is directed to the formation of cellulose derivatives using homogenous phase reaction conditions. Cellulose is dissolved using DMAc/LiCl and a reagent system is added to promote the acylation of an appropriate acid anhydride or free carboxyl... | 06/04/1996 |
| 5515444 | Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi channel control systems are used to ... | 05/07/1996 |
| 5508003 | Metallic material with low melting temperature A gallium-indium-zinc-copper metallic material has been found to exhibit many of the advantageous properties of mercury, such as electrical conductivity, fluidity, and high vaporization temperature. The metallic material is formulated by combining individ... | 04/16/1996 |
| 5508023 | Pharmaceutically acceptable agents for solubilizing, wetting, emulsifying, or lubricating in metered dose inhaler formulations which use HFC-227 propellant 1,1,1,2,3,3,3-heptafluoropropane (HFC-227) has been identified as a highly polar propellant. Surfactants which have an elevated value (9.6 or greater) for their hydrophilic-lipophilic balance (HLB) can be used as suspending, wetting, and lubricating agent... | 04/16/1996 |
| 5505954 | Topical gel containing aminocaproic acid applied to the eye A topical gel formulation containing aminocaproic acid prevents secondary hemorrhage following hyphema without the adverse side effects associated with systemically delivered aminocaproic acid. Of ten human patients treated with the formulation, none have... | 04/09/1996 |
| 5502041 | Potent inhibitor of HIV reverse transcriptase An isolated, substantially pure, novel compound possessing HIV reverse transcriptase inhibitory activity, and method of preparing same are described.... | 03/26/1996 |
| 5492688 | Metered dose inhaler fomulations which include the ozone-friendly propellant HFC 134a and a pharmaceutically acceptable suspending, solubilizing, wetting, emulsifying or lubricating agent Metered dose inhaler (MDI) formulations which utilize 1,1,1,2-tetrafluoroethane (HFC 134a) as the sole propellant are made practical by including a polar surfactant such as polyethylene glycol, diethylene glycol monoethyl ether, polyoxyethylene (20) sorbi... | 02/20/1996 |
| 5492689 | Combined virustatic antimediator (COVAM) treatment of common colds The common cold and related disorders such as influenza, acute sinusitis, acute otitis, and infectious exacerbations of obstructive pulmonary disease, are best treated by providing a combination of antiviral agents and antiinflammatory compounds to a pati... | 02/20/1996 |
| 5478978 | Electrical switches and sensors which use a non-toxic liquid metal composition Liquid gallium or gallium alloy is utilized as the conductive fluid in a switch or sensor housing. In order to prevent wetting of the interior walls of the switch or sensor housing, the liquid gallium or gallium alloy is either free of metal oxides or has... | 12/26/1995 |
| 5466600 | Use of carbon monoxide dehydrogenase for bioremediation of toxic compounds Toxic chlorinated compounds and nitro-aromatic compounds are rendered more environmentally friendly via a bioremediation process which employs carbon monoxide dehydrogenase, a microorganism containing carbon monoxide dehydrogenase, or a Co/Fe--S component... | 11/14/1995 |
| 5458786 | Method for dewatering fine coal Fine coals are dewatered in an energy efficient process in which a non-polar liquid or a mixture of different hydrophobic liquids are used to displace the water from the coal surface. This process works with higher rank coals that are naturally hydrophobi... | 10/17/1995 |
| 5442540 | Soft-switching PWM converters A full-bridge zero-voltage-switching pulse-width-modulated converter employs a saturable reactor in place of the linear inductor in order to reduce current stress on the active switches, reduce voltage stress on the rectifier diodes, and reduce secondary ... | 08/15/1995 |
| 5442029 | Methods of preparing polymeric ketones A new method for preparing commercially valuable polymeric ketones is described. The method employs an -amiononitrile as a monomeric unit whereby an amorphous, soluble polymer having protected carbonyl moiety is obtained. Upon deprotecting the carb... | 08/15/1995 |
| 5432695 | Zero-voltage-switched, three-phase PWM rectifier inverter circuit A novel switching rectifier circuit that combines the conventional three-phase, 6-stepped PWM rectifier/inverter circuit with a simple, low-power switch commutation circuit to provide zero-voltage turn-on for the switches, and soft turn-off for the diodes... | 07/11/1995 |
| 5432191 | Allosteric hemoglobin modifiers to decrease oxygen affinity in blood A family of compounds has been found to be useful for right-shifting hemoglobin towards a low oxygen affinity state. The compounds are capable of acting on hemoglobin in whole blood. In addition, the compounds can maintain the oxygen affinity in blood dur... | 07/11/1995 |
| 5429818 | Non-capsulated mutants of Actinobacillus pleuropneumoniae useful as vaccines Noncapsulated mutants of normally encapsulated bacteria in which the capsule is required for virulence are useful as vaccines for disease states caused by the normally encapsulated bacteria. In particular, a non-capsulated mutant of Actinobacillus (Haemop... | 07/04/1995 |
| 5430142 | Thermoplastic pentosan-rich polysaccharides from biomass A process for chemically modifying substantially pure xylose-rich oligosaccharides and polysaccharides in homogenous phase solution. The process may be advantageously utilized to produce biodegradable, thermoplastic, melt flowable, low shear resistant and... | 07/04/1995 |
| 5428039 | Method for electively achieving reversible hyperpolarized cardiac arrest While performing cardiopulmonary bypass, the aorta is cross-clamped and the beating heart is stopped by introducing of an ATP-dependent potassium channel opening agent. The infusion into the coronary circulation shortens the cardiac action potential there... | 06/27/1995 |
| 5422718 | Elastic-part immersion cell for analyzing microstructures in materials The elastic-port immersion cell (10) is an optical oil immersion vessel which has a flexible latex (or other) sheath (24) protruding from its sidewall. The sheath is affixed to an opening in the wall of the vessel using a collar, O-ring (26) or other conn... | 06/06/1995 |
| 5415863 | Topical containing aminocaproic acid for preventing secondary hemorrhage following hyphema A topical gel formulation containing aminocaproic acid prevents secondary hemorrhage following hyphema without the adverse side effects associated with systemically delivered aminocaproic acid. Of ten human patients treated with the formulation, none have... | 05/16/1995 |
| 5407479 | Sol-gel ଲ-aluminum titanate thin film coating ଲ-Al2 TiO5 protective coatings have been developed for both dense and porous ceramics such as SiC and Si3 N4 using a chemical solution processing method involving the hydrolysis and condensation of aluminu... | 04/18/1995 |
| 5407528 | Oxygen plasma resistant polymeric film and fiber forming macromolecules containing the phosphine oxide moiety Poly(arylene ether phosphine oxide)s provide hydrolytic, thermal and oxidative stability. These materials have Tg s ranging from about 190°-280° C., and are more self-extinguishing than other engineering thermoplastics tested when burned due ... | 04/18/1995 |
| 5396260 | Video instrumentation for the analysis of mineral content in ores and coal Mineral content in processed ore and coal content in coal slurries are determined using a video system. A video image is taken of a sample, the video image is digitized, and gray levels are assigned to points or areas on the video image. The distribution ... | 03/07/1995 |
| 5391846 | Alloy substitute for mercury in switch applications With proper handling, Gallium-Indium-Tin eutectics are suitable for use as a substitute for mercury in switch applications. The eutectics should be acid washed to prevent oxidation of the metal components of the eutectic while in the switch housing and, f... | 02/21/1995 |
| 5387629 | Phosphorus containing poly(arylene ether)s useful as oxygen plasma resistant films and in nonlinear optical applications Polymers containing the phosphine oxide moiety are identified as being particularly useful in applications where resistance to atomic oxygen etching is required and in applications where second order nonlinear optical effects will be utilized. Particularl... | 02/07/1995 |
| 5382680 | Allosteric hemoglobin modifier compounds Allosteric hemoglobin modifier compounds having the general structural formula: ##STR1## wherein the R2, R3, R4, R5, and R6 moieties may be hydrogen, halogen or alkyl groups and may be the same o... | 01/17/1995 |
| 5357040 | Fine powders of ketone-containing aromatic polymers and process of manufacture Fine particles of semi-crystalline ketone-containing aromatic polymers (PEEK, PEKK, etc.) are produced by controlling the rate and conditions of hydrolysis of an amorphous polyarylketimine intermediate. The choice of acid and its concentrations affects th... | 10/18/1994 |
| 5355417 | Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi channel control systems are used to ... | 10/11/1994 |
| 5346830 | Gene expression system based on regulatory elements of bateriophage P2 and satellite phage P4 An E. coli heterologous gene expression system comprising a multicopy expression vector comprising an F promoter from bacteriophage P2; and at least one copy of a DNA sequence comprising a delta gene from satellite P4 operably linked to a regulatable prom... | 09/13/1994 |
