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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 |
| 7091044 | Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography This invention is a method and device for use with multi-dimensional chromatography that utilizes partial modulation. An analyte-bearing sample is subjected to a first dimension of chromatography. Thereafter the separated analyte-bearing sample is diluted with a mod... | 08/15/2006 |
| 6247731 | Nut with controlled internal radius A tapered conic ferrule in accordance with an industry standard is abutted against a male nut. The nut is provided with a length wise passage having an end at a head on the nut. The passage has a radius of curvature to enable the tube to bend, but not sha... | 06/19/2001 |
| 6202698 | Multiple port diaphragm valve This disclosure sets forth a diaphragm valve operative with N ports deployed in an upper head. The ports all connect to a diaphragm having a bead defining a flow path around the diaphragm connecting all the ports. In the cylinder below the upper head, the... | 03/20/2001 |
| 6193213 | Variable pressure loading system utilizing combined spring and fluid pressure A variable load mechanism for use in a valve seals the flow of a switched fluid. The flow passes through the mechanism in a region which includes shear seal surfaces. The lives of the components of the valve are extended by limiting the range of excursion... | 02/27/2001 |
| 6133740 | Chlorine specific gas chromatographic detector A method and apparatus are set forth which enables a gas chromatographic column output to be connected with a pulse discharge chamber in which chemically bound chlorine in volatile organic or inorganic samples is measured. A spark discharge is formed in t... | 10/17/2000 |
| 6030436 | Permeation tube for delivering fluid at a constant flow rate independent of ambient temperature variations This disclosure features a permeation storage chamber in a tube having a first membrane delivering a permeate flow into an intermediate chamber. This chamber delivers flow from a second membrane. The intermediate chamber delivers surplus permeate out thro... | 02/29/2000 |
| 5594346 | Apparatus and methods for identifying and quantifying compounds using a plurality of pulsed rare gas photoionization detectors A pulsed discharge photoinoization detector is set forth which comprises a plurality of closed chambers for receiving different types of carrier gas flowing there through between inlets and outlets. The carrier gases are exposed to a pair of electrodes fo... | 01/14/1997 |
| 5317271 | High voltage spark excitation and ionization detector system with adjustable sample input for sensitivity control A sample is loaded along with a carrier gas into a column. The column discharge is introduced into a chamber downstream of spaced electrodes which create a pulsed DC spark. The spark produces a spectral emission and a metastable carrier gas dispersion tha... | 05/31/1994 |
