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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 |
| 8087901 | Fluid channeling device for back-to-back compressors A fluid channeling device including a channeling body, an axial transfer channel, and a radial outlet channel. The channeling body includes first and second annular body sections spaced axially apart and a tubular body section extending between the first and second ... | 01/03/2012 |
| 7354252 | Pressure intensifier A pressure intensifier for fluids has an intensifier piston with a high-pressure piston and a low-pressure piston having a greater diameter than the high-pressure piston. The pistons are moveable in a high-pressure cylinder and a low-pressure cylinder, respectively,... | 04/08/2008 |
| 7214036 | Screw type vacuum pump A screw vacuum pump which allows reduced power, lower inside gas temperature, and reduced discharging time. The pump has a pair of screw rotors rotatively engaged with each other in a pump casing to discharge a gas along a longitudinal direction of the pump. Each ro... | 05/08/2007 |
| 7189320 | Pump, pump for liquid chromatography, and liquid chromatography apparatus The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup. In a pump for liquid chromatography including a cylinder and a plunger that reciprocates in the cyl... | 03/13/2007 |
| 7140846 | Vacuum pump having main and sub pumps A vacuum pump having a rotary shaft that is rotated by a drive source has a main pump and a sub pump. The main pump includes a pump chamber and a gas transferring body that is located in the pump chamber. The main pump is driven by the drive source through the rotar... | 11/28/2006 |
| 7063785 | Pump for liquid chromatography The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubb... | 06/20/2006 |
| 7063513 | Liquid chromatograph pump with dual cylinders and dual plungers In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between... | 06/20/2006 |
| 7028491 | Method and apparatus for reducing inrush current in a multi-stage compressor A compressor assembly having a first compression mechanism operatively coupled to a first motor and a second compression mechanism operatively coupled to a second motor. The first compression mechanism compresses the vapor from a low pressure to an intermediate pres... | 04/18/2006 |
| 7025557 | Secondary flow control system The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (2... | 04/11/2006 |
| 6220824 | Self-propelled vacuum pump A vacuum pump, such as a turbomolecular pump, a molecular drag pump or a hybrid pump, is adapted for use with a backing pump. The vacuum pump includes a housing having an inlet port and an exhaust port for coupling to the backing pump, one or more vacuum ... | 04/24/2001 |
| 6168388 | Dual pump system in which the discharge of a first pump is used to power a second pump A system and method that permits fluids, such as petroleum, to be pumped from two separate zones. A submergible pumping system, including a submergible electric motor driving a submergible pump, is deployed in a wellbore. The submergible pump intake is lo... | 01/02/2001 |
| 5464330 | Cyclic hydraulic pump improvements A two stage pump has coaxial first and second stage reciprocating pumps with the second stage piston reciprocably driven by the first stage piston. Multiple sets of first and second stage pumps are provided, and the second stage pistons can be returned by... | 11/07/1995 |
| 5385449 | Compressor arrangement A compressor arrangement for producing compressed air includes a compressor connected through a line to devices using the compressed gas and a supercharger driven by the exhaust of a heat engine. In order to improve the overall efficiency of the arrangeme... | 01/31/1995 |
| 5156001 | Fuel supply circuit for a turbo-engine In order to limit the heating of fuel in the fuel supply circuit of an aircraft turbo-engine including a high pressure displacement pump driven by the turbo-engine, and an excess fuel return pipe having a pressure regulating valve in parallel with the hig... | 10/20/1992 |
| 4966306 | Beverage dispenser system using volumetric ratio control device A postmix beverage dispensing valve for a beverage dispenser, including a volumetric ratio control device incorporated therein to provide positive ratio control. The device includes a syrup piston and a soda piston linked togeher, syrup and soda chambers,... | 10/30/1990 |
| 4922719 | Fluidic transformer with sealed cylinder and check valves in pistons An improved fluid transformer which is capable of controlling the position of the operating pistons within the apparatus so that pressure equilibrium is maintained and the movements of the pistons are limited to predetermined locations within the cylinder... | 05/08/1990 |
| 4915593 | Fluid supply system with turbine driven start pump The use of a single main centrifugal fuel pump for supplying fuel to an aircraft gas turbine engine has advantages over other known systems, however a problem has existed in that the centrifugal pump, when driven in a fixed ratio to the engine speed, cann... | 04/10/1990 |
| 4864815 | Fuel supply system with turbine driven start pump The use of a single main centrifugal fuel pump for supplying fuel to an aircraft gas turbine engine has advantages over other known systems, however a problem has existed in that the centrifugal pump, when driven in a fixed ratio to the engine speed, cann... | 09/12/1989 |
| 4779761 | Beverage dispenser pump system with pressure control device In a post-mix beverage dispenser in which the concentrate is metered (or portioned) by a positive displacement metering pump having check valves, the improvement of a pressure control device for pressurizing the outlet line from the pump to prevent "blow-... | 10/25/1988 |
| 4705636 | Method of making a coating and a permselective membrane, ionic polymer therefor, and products thereof This invention relates to an ionic polymer, method for making a coating and a composite membrane therefrom and also relates to products derived from the disclosed methods and polymer. A new lipid-like permselective membrane is disclosed comprising an ultr... | 11/10/1987 |
| 4678405 | Low net positive suction head pumps A pump is disclosed for pumping a volatile fluid having a given vapor pressure. The pump of this invention comprises a pump housing comprising an inlet for introducing the liquid at a relatively low static pressure level into the pump housing and an outle... | 07/07/1987 |
| 4205945 | Unitized fluid delivery system and method of operating same A centrifugal boost pump, a primary centrifugal pump and a dynamic machine are driven through a common drive shaft. At low speeds, such as during pump start-up, the elements are in the aforementioned fluid serial relationship such that the dynamic machine... | 06/03/1980 |
| 4097198 | Internal combustion assisted hydraulic engine This hydraulic engine utilizes two sets of hydraulic cylinders connected to a shaft so as to be alternately pressurized as the shaft is reciprocally driven by a pair of conventional internal combustion chambers. The outlets of all hydraulic cylinders are ... | 06/27/1978 |
| 4067665 | Turbine booster pump system An improved pump system includes a booster turbine unit including a turbine mounted on the same shaft as the booster pump and utilizing a primary pump as the primary fluid power source. Various forms of turbine and booster pump may be used such that eithe... | 01/10/1978 |
| 4066386 | Priming systems for pumps A reservoir is provided in the inlet line to a pump in which air and vapor collects. The air and vapor is drawn out by a fuel operated pump and supplied to a fuel/air separator. Fuel passes back to the inlet line and the air and vapor is allowed to escape... | 01/03/1978 |
| 4053089 | Pump for dispensing liquids A pump dispenser for liquids includes a finger operated piston and cylinder, a valve to allow liquid to enter the pump dispenser during a filling stroke, a chamber to receive said liquid and to store it under increasing hydraulic pressure during a dischar... | 10/11/1977 |
| 4002415 | Distributor type fuel injection pumps A distributor type fuel injection pump includes an injection pump to which fuel is supplied from one end of a bore accommodating a slidable shuttle. The shuttle is moved towards the one end of the bore during the filling strokes of the injection pump by w... | 01/11/1977 |
| 3991654 | Hydraulic system for use in engines having reciprocating pistons and rotary piston rods A hydraulic system for use in engines having reciprocating pistons and rotary piston rods wherein hydraulic fluid is supplied to each cylinder to not only lubricate the piston and cylinder but also to facilitate the movement of the piston to the top dead ... | 11/16/1976 |
| 3930756 | Metering pulse pump A metering pulse pump for metering an additive liquid into a liquid carrier under high pressure. A high-pressure, rapidly reciprocating piston pump is provided at its outlet end with a pressure-relief valve including a spring pressure control permitting t... | 01/06/1976 |
