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| Number | Title | Issue Date |
| 5459994 | Gas turbine-air separation plant combination A system and method of operating a system comprising an air separation plant and a gas turbine engine, the method comprising: providing a nitrogen-rich stream from the air separation plant; expanding and thereby cooling the nitrogen-rich stream; and deliv... | 10/24/1995 |
| 5386707 | Withdrawal of cryogenic helium with low impurity from a vessel A method for withdrawing from a vessel pressurized cryogenic helium fluid with an objectionable impurity concentration of less than 5 ppmv. The method comprises pressurizing at or near the top of the vessel with helium fluid from an external source having... | 02/07/1995 |
| 5386706 | Low heat-leak, coherent-aerogel, cryogenic system A low heat-leak cryogenic system comprising a cryogenic fluid, a first lamina having an external side facing toward and exposed directly to, or indirectly to, the cryogenic fluid and an internal side facing away from the cryogenic fluid; a second lamina s... | 02/07/1995 |
| 5342171 | Impeller blade with reduced stress A fluid impeller blade with lowered stress and increased useful life has an edge extending from the hub of the blade and forming, in part, a boundary for axial fluid flow. The edge, at least at its extremity, is spaced axially into the blade, at an angle ... | 08/30/1994 |
| 5309752 | Leakage measurement into a gas-charged collapsible container Apparatus and method for measuring a rate of leakage from a closed vessel enclosed in a container. Air is expelled from the container and a charge of helium-free gas is introduced. The preferred container is comprised of flexible sheets with mating edges ... | 05/10/1994 |
| 5299909 | Radial turbine nozzle vane A radial inflow turbine having a radial nozzle assembly comprising a plurality of vanes, wherein downstream of the throat, the vane suction surfaces, relative to a radius of the circle on which the vane trailing edges lie, have a specified range of angles... | 04/05/1994 |
