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A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
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| Number | Title | Issue Date |
| 6311983 | Combination static lift-off face contact seal and floating ring shaft seal A rocket engine shaft seal which prevents leakage from escaping from the pump to the turbine along the shaft 1. The seal has a bellows spring 8 for pushing the floating ring seal 2 into contact with the mating ring 4 when the rocket engine is off, thus se... | 11/06/2001 |
| 6070784 | Contact backup roller approach to FSW process A welding apparatus (28) for forming a circumferential weld (56) includes a base (30) and a spindle (32) extending perpendicularly from the base. Along the spindle, at its proximal and distal portions, first and second workpiece supporters (38, 40) are pr... | 06/06/2000 |
| 6045027 | Friction stir welding interlocking joint design and method The present invention provides novel joint designs and methods for holding together and drawing together interface edges of workpieces during friction stir welding. The method includes providing an interface edge (30A) on a first workpiece (20A), and an i... | 04/04/2000 |
| 5975406 | Method to repair voids in aluminum alloys The present invention provides a method to repair a void in an aluminum alloy, particularly a void resulting from an exit hole left from friction stir welding (FSW). The method includes machining the void to provide a tapered bore (34) through a parent me... | 11/02/1999 |
| 5971252 | Friction stir welding process to repair voids in aluminum alloys The present invention provides an in-process method to repair voids in an aluminum alloy, particularly a friction stir weld in an aluminum alloy. For repairing a circular void or an in-process exit hole in a weld, the method includes the steps of fabricat... | 10/26/1999 |
| 5973778 | Method of monitoring a thin film of polyimide material using surface spectroscopy A method for monitoring a thin film of polyimide material on the surface of a liquid crystal display uses nonlinear second-order surface spectroscopy to monitor the condition of a surface. Electromagnetic radiation is directed towards the surface and the ... | 10/26/1999 |
| 5955197 | Coating for carbon--carbon composites and method for producing same A coating for sealing carbon--carbon composites against hydrogen. The coating comprises a first layer of silicon carbide and a second layer of a glass, glass-ceramic or a low-melting-point metal such as tin or an alloy thereof. Particularly when such seco... | 09/21/1999 |
| 5741596 | Coating for oxidation protection of metal surfaces An oxidation protection coating for metal substrate surfaces. The coating, according to a preferred embodiment, comprises an initial or first layer of a glass-ceramic, such as a barium aluminosilicate composed chiefly of baria, silica and alumina; or mull... | 04/21/1998 |
| 5236152 | Cooling/fuel system for hypersonic flight The present invention provides for the integration of structural cooling and fuel treatment within hypersonic vehicles. This is achieved by channeling a hydrocarbon fuel to a portion of the aircraft structure and imparting via the heat sink effect suffici... | 08/17/1993 |
| 4887607 | Apparatus for and method of spectral analysis enhancement of polygraph examinations An apparatus for and method of improving polygraph testing comprises parallel processing of output response signals of a human being by a polygraph machine and a spectral analyzer and then comparing and contrasting the output results for more qualified in... | 12/19/1989 |
| 4866720 | Multicolored laser source A method for efficiently producing a multicolored laser beam. The second harmonic of a 1.06 micron wavelength laser beam is produced from a YAG laser. The second harmonic has a wavelength equal to 0.53 micron. The second and third harmonics of a 1.32 micr... | 09/12/1989 |
| 4865529 | Rotor transient positioning assembly A turbopump assembly 10 including a pump section 12 and a turbine section 14 is provided with forward and aft shaft centerline containment assemblies 20,84 in combination with radial hydrostatic bearings 28,72, and seals 26 to support transient loads and ... | 09/12/1989 |
| 4865802 | Accumulator A liquid accumulator (28) for use in a substantially zero gravity environment which utilizes the surface tension of a liquid to form a meniscus which acts as a gas-liquid interface providing a barrier to the passage or entrainment of a gas into the liquid... | 09/12/1989 |
| 4854818 | Shrouded inducer pump An improvement in a pump including a shrouded inducer, the improvement comprising first and second sealing means 32,36 which cooperate with a first vortex cell 38 and a series of secondary vortex cells 40 to remove any tangential velocity components from ... | 08/08/1989 |
| 4838759 | Cavitation-resistant inducer An improvement in an inducer for a pump wherein the inducer includes a hub, a plurality of radially extending substantially helical blades and a wall member extending about and encompassing an outer periphery of the blades. The improvement comprises formi... | 06/13/1989 |
| 4834611 | Vortex proof shrouded inducer The present invention provides a vortex-free shrouded inducer assembly comprising a forwardly extended shroud (24) and surfaces (36,38) defining a recess proximate to the forward lip (42) of the shroud for favorably diffusing and mixing the flow (54) tend... | 05/30/1989 |
| 4830092 | Heat enhancers and salt purifiers for thermal energy storage canister A solar collector thermal power system 10 which includes thermal energy storage units (22) containing thermal energy storage canisters (28) with the associated heat enhancers and purifiers. A fluid is directed through the canisters to heat a phase change ... | 05/16/1989 |
| 4828760 | Method of cleaning a spent fuel assembly A method of cleaning a fuel assembly contaminated with a radioactive alkali metal in which the fuel assembly is subjected to heating with an inert gas followed by being placed under vacuum and finally cooled with an inert gas; the latter two steps being p... | 05/09/1989 |
| 4815443 | Solar energy focusing assembly and storage unit A power system heat source applicable to spacecraft and the like is realized in a combination of an integrated solar absorber-thermal storage assembly 10 and a solar energy focusing unit 50. The focusing unit is capable of selectively functioning inflatab... | 03/28/1989 |
| 4807240 | Frequency adding lasers and optical amplifiers A method for creating population inversions for use in stimulated emission devices which beam combine, beam clean-up, or frequency up-convert electromagnetic radiation. The invention comprises near resonantly enhanced multiphoton pumping of a multilevel q... | 02/21/1989 |
| 4804520 | Warm gas accumulator A warm gas accumulator system 10 suitable for use in guidance vane-actuator systems of missiles comprising a tank 12 containing a supply of Tridyne gas, which tank 12 includes an internally mounted catalytic bed 26 and an internally mounted heat exchanger... | 02/14/1989 |
| 4803339 | Hollow electrode and arc initiation method An improved hollow electrode 10 and hollow electrode working tip 14 for a gas tunsten arc welding apparatus is disclosed. The hollow electrode face is formed as a lune-shaped radial surface 16 having two tapered intersecting cone-shaped angled surfaces 18... | 02/07/1989 |
| 4801092 | Injector assembly for a fluid fueled engine An injector assembly 10 for injecting propellants into a fluid fueled rocket engine. Injection assembly 10 comprises a plate member 12 with an opening 16 therethrough. Injector element 14 is sealed within opening 16. Oxidizer flows through central bore 18... | 01/31/1989 |
| 4798949 | Linear actuated optical concentrator An apparatus 10 for pointing an optical concentrator 20 in an extraterrestrial environment. A base 12 rigidly supports focal point equipment 16. At least three support means 18 are utilized for connecting the optical concentrator 20 to the base 12. The su... | 01/17/1989 |
| 4794344 | Injected phase conjugate laser amplifier An apparatus 10 and method for producing a high-energy laser beam 14'". A low-power, good quality, input laser beam 14 is produced by master oscillator 12. The low-power beam 14 is focused at an input focal point 20 and reflected from turning flat 22 to a... | 12/27/1988 |
| 4790721 | Blade assembly An airfoil-shaped blade assembly having a metallic core, thin coolant liner and ceramic blade jacket includes variable-size cooling passages and a circumferential stagnant air gap to provide a substantially cooler core temperature during high temperature ... | 12/13/1988 |
| 4787091 | Chemical laser system employing iodine atoms as a lasing gas A chemical iodine laser system 10 is provided with a reactive iodine producing container (12) for housing a reactive iodine generating composition. Singlet delta oxygen produced by oxygen generator (30) is mixed with iodine atoms and conveyed to a laser c... | 11/22/1988 |
| 4785460 | Laser generated by the interaction of molecules containing the azide radical and a molecule containing a halogen atom Disclosed is a chemically pumped laser system including means for generating chemicals that react to produce electronically excited molecules used by the laser system.... | 11/15/1988 |
| 4783055 | Holographic interferometer A method and apparatus for testing an optical system 64 having an optical axis and a desired optical wavefront. A hologram is formed containing a recording of the desired optical wavefront. The hologram is located on the optical axis. When the hologram 50... | 11/08/1988 |
| 4782660 | Sequenced and pressure controlled injector An injector assembly 10 for injecting fuel and oxidizer in a combustion chamber 38 of a fluid-fueled rocket engine. Injector assembly 10 comprises a stationary housing 12, a plate member 14 attached to the housing 12, at least one injector subassembly 18 ... | 11/08/1988 |
| 4781180 | Orthotic knee brace system and method An improved orthotic knee brace system for single and multiple posterior, anterior and lateral knee injuries includes first and second depending frameworks for attaching around a human leg, respectively, above and below the knee joint, the frameworks bein... | 11/01/1988 |
| 4781019 | Keel-rib coolant channels for rocket combustors The present invention provides a regeneratively cooled rocket combustor comprising a combustor wall, a plurality of coolant channels extending through the combustor wall and at least one keel-rib extending into each coolant channel from the channel roof a... | 11/01/1988 |
| 4781018 | Solar thermal propulsion unit This invention relates to a space vehicle 10 in which solar radiation is utilized to generate thrust by virtue of a solar thermal propulsion unit 12. The propulsion unit comprises basically reaction engines 14 including a DeLaval nozzle 22, heating chambe... | 11/01/1988 |
| 4781861 | Azide-terminated azido compound An energetic azide-terminated azido compound and a method for producing same is disclosed.... | 11/01/1988 |
| 4780880 | Chemical oxygen iodine laser A method for enhancing the lasing action in a chemical oxygen iodine laser wherein a gas stream having a desired reactant gas concentration profile is combined with a diluent gas concentration profile using hydrogen as the diluent gas.... | 10/25/1988 |
| 4779799 | Extendible nozzle An apparatus and method for continuous deployment and stowage of an extendible nozzle 12 of a rocket engine. One end of the heat-resistant sheet metal extendible nozzle 12 is fixedly attached to the lower end of the fixed nozzle 16 of the engine. In the s... | 10/25/1988 |
| 4777794 | Mass flow rate regulation of propellant fluid in the feed system of a bi-propellant, pressure-fed rocket engine A method and apparatus 10 for self-regulating the mass flow rate of a fluid comprises a housing 12 defining an upper chamber 14 and a lower chamber 16, a sealed and pressurized bellows 30 contained within the upper chamber 14, spring bias means 58 contain... | 10/18/1988 |
| 4775815 | Shear motor for dynamic mount for laser-beam steering mirror A dynamic mount and actuator for a laser mirror 20 comprising three piezoelectric motors 40 mounted 120° apart on a motor-mount member 32. Each motor 40 comprises a rectangular block 44 composed of horizontal layers of electroded piezoelectric wafers 46,... | 10/04/1988 |
| 4773918 | Black liquor gasification process A process for recovering the energy and chemical content of an aqueous black liquor utilizing a reactor containing a drying zone located above a gasification zone. The reactor contains a bed of porous solid carbonaceous material in the gasification zone. ... | 09/27/1988 |
| 4772789 | Leak imaging using differential absorption A method for detecting, locating and measuring leaks in a test object is described using a differential absorption technique. In a preferred embodiment the test object is first pressurized with a light absorbing fluid. The test object is then illuminated ... | 09/20/1988 |
