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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 5543605 | Microwave fiber coating apparatus Apparatus for heating a fiber using microwave energy. The apparatus has a source of microwave energy feeding and applicator. The applicator is configured to concentrate the microwave energy on a chamber holding a fiber. Fibers made or coated using chemica... | 08/06/1996 |
| 5528504 | Equivalent thickness bending analogy for integrally stiffened structures A method is disclosed for developing the contour of tools employed for forming members exhibiting complex shapes. The members may be precipitation, heat treatable, metals or metal alloys which are age formed, although they be of any material which exhibit... | 06/18/1996 |
| 5509241 | Fireproofing panel attachment system A system for attaching fireproofing panels to a poured structure. The panels are made with projecting members. In use, the panels line a form with the projecting members facing inward. When the form is removed, the panels are embedded in the poured struct... | 04/23/1996 |
| 5508109 | Fiber blend for low cost, asbestos free friction material A fiber blend for use in friction materials. The fiber contains a blend of a highly fibrillated fiber, such as a fibrillated polyacrylonitrile fiber and a fiber with a high carbon content, such as an oxidized carbon fiber precursor.... | 04/16/1996 |
| 5442160 | Microwave fiber coating apparatus Apparatus for heating a fiber using microwave energy. The apparatus has a source of microwave energy feeding and applicator. The applicator is configured to concentrate the microwave energy on a chamber holding a fiber. Fibers made or coated using chemica... | 08/15/1995 |
| 5433991 | Reinforcement system for mastic intumescent fire protection coatings comprising a hybrid mesh fabric A reinforcement system for mastic intumescent fire protection coatings. Free floating hybrid mesh embedded in the coating is used to reinforce the coating. The hybrid mesh is made from a combination of high temperature and low temperature yarns.... | 07/18/1995 |
| 5431984 | Composite preforms with groves for fibers and groves for off-gassing The invention is directed to composite preforms which comprise reinforcing fiber deposited in grooves pre-formed in a metal or ceramic foil.... | 07/11/1995 |
| 5432434 | System for matching a new hole in an overlying member with an existing hole in an underlying member A system is provided for matching a new hole in an overlying member with an existing hole in an underlying member. With a magnet placed in the existing hole, an indicator device having an internal cavity, an outer boundary, and a ferrous ball freely movab... | 07/11/1995 |
| 5427304 | Method of manufacturing composites Methods for and preforms for making fiber reinforced composites are disclosed. According to the invention, preforms which allow composites to be machined are provided. Also, preforms with a uniform debulking ratio are provided with non-uniform fiber place... | 06/27/1995 |
| 5404641 | Method of drilling through contiguous plate members using a robotic drill clamp A system is provided for drilling through contiguous first and second plate members so as to avoid the formation of burrs at their interface. Using a jig, the plate members are held together at distant locations while assuming a desired mutual orientation... | 04/11/1995 |
| 5404687 | Intumescent fireproofing panel system A system of fireproofing panels. The panels are light weight and easy to install. Lap joints are formed between the panels and simply secured with screws. No fireproofing material need be applied over the joints or the screws. In one embodiment, the panel... | 04/11/1995 |
| 5397595 | Method of densifying porous billets In accordance with the invention there is provided a method of producing a densified carbon preform having interior a porous region of graded carbon-silicon carbide, carbon-silicon nitride or ceramic-ceramic composition.... | 03/14/1995 |
| 5395584 | Nickel-base superalloy compositions Nickel-base superalloy composition for the repair, coating or rebuilding of the surface of a superalloy substrate, such as a single crystal nickel-base superalloy, to impart thereto surface areas having improved high temperature properties such as hot cor... | 03/07/1995 |
| 5388398 | Recuperator for gas turbine engine A system for preheating air before it enters the combustion chamber of a gas turbine engine includes a recuperator which extends between, and is supported by, forward and rear headers. Cold air to be pre-heated by the recuperator flows through an entry pa... | 02/14/1995 |
| 5389152 | Apparatus for densification of porous billets A porous preform is densified by heating while emersed in a precursor liquid. Heating is achieved by passing a current through the preform or by an induction coil immersed in the liquid. Ways to control the densification process are also described.... | 02/14/1995 |
| 5379647 | Hole elongation testing system A system for testing and measuring hole elongation or deformation in a test article. The system includes a frame, a bearing member, and a referencing arm. The frame has a receiving area adapted to receive a portion of a test article. The bearing member is... | 01/10/1995 |
| 5373743 | Backsplash protection for ultrasonic inspection system A gas jet is positioned above the water nozzle of a system provided for ultrasonically detecting flaws in an article to be inspected. The water nozzle directs a substantially level water jet stream against an upright surface of the article as it is moved ... | 12/20/1994 |
| 5368095 | Gas turbine recuperator support A system for preheating air before it enters the combustion chamber of a gas turbine engine includes a recuperator which extends between, and is supported by, forward and rear headers. Cold air to be pre-heated by the recuperator flows through an entry pa... | 11/29/1994 |
| 5364571 | Method of making a composite material Net shape composite articles are made by a molding process. The molded preform is densified in a process where the rate of temperature increase is controlled to prevent distortion. The densified composite objects are impregnated with a secondary material ... | 11/15/1994 |
| 5362344 | Ducted support housing assembly A method is disclosed of making an integral structure comprised of inner and outer coaxial shells mutually supported so as to define an annular passageway between the shells. The integral structure may be an air inlet housing for a gas turbine engine and ... | 11/08/1994 |
| 5350466 | Creep resistant titanium aluminide alloy Creep resistant titanium aluminide alloy article consisting essentially of, in atomic %, about 45 to about 48 Al, about 1.0 to about 3.0 Nb, about 0.5 to about 1.5 Mn, about 0.25 to about 0.75 Mo, about 0.25 to about 0.75 W, about 0.15 to about 0.3 Si and... | 09/27/1994 |
| 5349811 | Pulsed fuel injection system for reducing NOx emissions A system for reducing the formation of NOx pollutants during the combustion of liquid fuel in a gas turbine engine. The system comprises introducing an externally modulated, rapidly-pulsed, oscillated or sinusoidal fuel flow delivery rate (gene... | 09/27/1994 |
| 5341303 | Method of developing complex tool shapes A method is disclosed for developing the contours of forming tools for fabricating metal members of complex shape such as wing skin and fuselage panels for aircraft. A computer simulation is performed of the age forming process on a geometrical representa... | 08/23/1994 |
| 5341213 | Alignment of radiation receptor with lens by Fourier optics method and apparatus for aligning a photoreceptor, such as a CCD array, at a back focal plane of a lens, as may be employed in the construction of a sensor of an imaging system, employs a pair of sine-wave gratings arranged perpendicularly to each other a... | 08/23/1994 |
| 5338566 | Method utilizing a ceramic for temperature measurement A ceramic thin film applique provided on a substrate effects an optical transition at a predetermined elevated temperature. Below the transition temperature, the applique exhibits distinctive visual and physical characteristics, for example color, opaquen... | 08/16/1994 |
| 5311639 | System for detecting and removing foreign object debris A system for detecting and removing foreign object debris from an enclosed region is capable of insertion through a small-sized opening. A source of light is optically transmitted through a first window in the outer peripheral surface of an elongated bore... | 05/17/1994 |
| 5271954 | Fluid flow visualization system The invention concerns the application of a layer of ceramic or glass particles to the surface of a substrate which is to be heated. The glass or ceramic particles are sized and mixed with an organic binder which yields a thin slurry consistency. The carr... | 12/21/1993 |
| 5261608 | Multi-line fluid supply manifold assembly A multi-line fluid supply manifold assembly comprising multiple parallel fluid supply lines for supplying fluid through a common block section to a fluid-receiving member. The assembly contains individual fluid supply fittings to which the fluid supply li... | 11/16/1993 |
| 5260137 | Infiltrated fiber-reinforced metallic and intermetallic alloy matrix composites Reinforced metallic or intermetallic alloy matrix composite materials which are reinforced by the incorporation of preferably small-diameter ceramic fibers infiltrated within a metal bonding layer. The bonding layer comprises a foil, such as copper, which... | 11/09/1993 |
| 5223651 | Supersonic combustion engine and method of combustion initiation and distribution A supersonic combustion air breathing jet engine and method of igniting fuel. The engine has means for providing a spatially controlled combustion distribution of fuel with an ignitor that provides a volumetrically diffuse discharge of energy to initiate ... | 06/29/1993 |
| 5211005 | High density fuel injection manifold A fuel injection system for use in the combustor section of a gas turbine engine is provided with first and second manifolds of toroidal configuration. First outlet nozzles of a plurality of fuel injectors associated with the first manifold are positioned... | 05/18/1993 |
| 5193789 | Automatic clamping apparatus Apparatus for releasably clamping a range of sizes of complex shaped articles having an upright web and laterally disposed upper and lower flanges. A first set of upper and lower flanges of an article placed on a work platform extends towards a first edge... | 03/16/1993 |
| 5184456 | Gas turbine motor drive A gas turbine engine which includes a starter/generator mechanically coupled thereto and an electric oil pump motor for driving an oil pump is started in a manner which assures a continuous and uninterrupted supply of lubricating oil to the moving compone... | 02/09/1993 |
| 5184769 | Tooling and method for consolidating a filamentary reinforced metal matrix composite The tooling includes a central die member and an outer die member spaced thereabout to form an annular, draftless chamber for receiving a composite preform. An annular punch is received in the chamber for pressing the preform at an elevated temperature su... | 02/09/1993 |
| 5168169 | Method of tool development A method is disclosed for developing the contour of tools employed for forming aluminum alloy members exhibiting complex shapes. The members are precipitation, heat-treatable, aluminum alloys which are age formed. The resulting member is formed to the des... | 12/01/1992 |
| 5152141 | Management of electrically driven engine accessories A plurality of accessories operatively associated with a gas turbine engine are driven by electric motors. A first motor controller initiates operation of a starter/generator mechanically coupled to the engine. After the engine has been started, the motor... | 10/06/1992 |
| 5135795 | Ceramic coating for temperature measurement A ceramic thin film applique provided on a substrate effects an optical transition at a predetermined elevated temperature. Below the transition temperature, the applique exhibits distinctive visual and physical characteristics, for example color, opaquen... | 08/04/1992 |
| 5133808 | Cleaning process for radioactive machine shop turnings The present invention relates to a process provided for cleaning magnesium thoriated scrap turnings resulting from machining operations. It results in the recovery of a maximum possible amount of magnesium thorium alloy for future use while ensuring prote... | 07/28/1992 |
| 5101919 | Steering system for tracked vehicles A steering system for a tracked vehicle extracts a portion of power from an engine which propels the vehicle, and combines the power with the remainder of the engine power by differential gear assemblies at the tracks of the vehicle for effecting a steeri... | 04/07/1992 |
| 5101928 | Power pack suspension system A suspension system for mounting a power pack including engine, transmission, and associated equipment to the frame of a land vehicle, such as a tank. The suspension system includes static supports for substantially immovably mounting the power pack to th... | 04/07/1992 |
