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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 |
| 5906194 | Side edge assembly for a cooling grate A side edge assembly for a cooling grate comprises a first aligned array of outer plates arranged in succession in the longitudinal direction of the grate and a second aligned array, which is between the grate and the outer plates, of inner plates arrange... | 05/25/1999 |
| 5497711 | Grate plate Improved grate plates are designed to produce multiple eddy currents in the absence of clinker and to provide even greater air distribution when overlaid by clinker. Each grate plate has a plurality of upwardly flaring wells which open to the upper surfac... | 03/12/1996 |
| 5271339 | Combustion apparatus for a refuse incinerator A combustion apparatus for a refuse incinerator has a plurality of rows of grates arranged in parallel in the directions of breadth and in series in the longitudinal directions of a combustion zone and a post-combustion zone of the combustion apparatus. T... | 12/21/1993 |
| 5265587 | Reciprocating stove grate allowing air flow therethrough An apparatus for preventing ash build-up and clinker formation of a particulate fuel mass in a stove includes a grate having a plurality of openings therein and on which the particulate fuel mass resides. A bottomless container retains the particulate fue... | 11/30/1993 |
| 5197397 | Grate structure for a horizontal type incinerator A grate structure for a horizontal type incinerator has a plurality of rows of grates arranged in parallel in perpendicular X and Y directions of the incinerator. Each X-direction row has a series of immovable grates and a series of movable grates alterna... | 03/30/1993 |
| 4966548 | Grate cooler device for the heat treatment of bulk material The heat treatment of solids by combustion, cooling, or the like with the aid of gas may take place on a grate conveying such solids while the gas is passed through openings in the surface of the grate. In order to provide lateral clearances of such grate... | 10/30/1990 |
| 4922889 | Pelletized fuel burning heater A heater for burning combustible pelletized fuel. The pelletized fuel is delivered at a controllable rate to a double-walled burn pot in an enclosed combustion chamber. Combustion air is injected into the combustion chamber at a pressure higher than the a... | 05/08/1990 |
| 4762489 | Cooling apparatus The cooling apparatus which is preferably constructed in the form of a grate cooler contains in its material inlet portion a material transfer arrangement with at least two rows lying behind one another of transversely extending air boxes which can be sup... | 08/09/1988 |
| 4520740 | Combustion and heating equipment Combustion and heating equipment includes a body with an underfeed stoker located in the lower part thereof. A jacket surrounds the body to define a heating space, different parts of which are interconnected by triangular ducts disposed in the gas pass. A... | 06/04/1985 |
| 4512266 | City refuse incinerator for the prevention of clinker formation A city refuse incinerator provided with stoker type firing equipment for combustion of city refuse has gas injectors installed low on the inside of a furnace body to inject low temperature inert combustion exhaust gas, purified in a dust collector, so tha... | 04/23/1985 |
| 4510873 | Stoker type firing equipment for use with city refuse incinerator Stoker type firing equipment for use with a city refuse incinerator provided with step type stokers formed by combining movable fire grates and fixed fire grates alternately and gas injectors installed in the fixed fire grates inject low temperature inert... | 04/16/1985 |
| 4389978 | Grates A grate characterized in that a fuel supporting and conveying surface is provided comprising at least one elongate channel having an open mouth and a bottom, the or each of said channels having a transverse cross-section which decreases in width in a dire... | 06/28/1983 |
| 4300460 | Method for generating heat from waste fuel A combustion method in which heat is generated from particulate laden combustible gas containing mineral matter created from gasifying waste wood, coke or other combustible material in which the waste is fed into a pile, under-fire combustion air dries an... | 11/17/1981 |
| 4177740 | Apparatus for generating heat from waste fuel A combustion apparatus having primary and secondary combustion chambers burns waste wood with an optional third chamber. The third chamber is used to blend the combustion products down to the desired process temperature. High pressure swirl air is admitte... | 12/11/1979 |
