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 |
| 7325622 | Extinguishing-medium container and system of containers Extinguishing-medium container includes a tubular body (2) which can be coupled together with a first and a second end piece (5, 6), which second end piece (6) has at least one outlet duct (33) for ejection of extinguishing medium (26 | 02/05/2008 |
| 7100701 | Fire-fighting device The invention relates to an apparatus for fire-fighting comprising a fire-extinguishing nozzle (4) connected to an extinguisher fluid supply (3) via a pipe (2) and comprising an alarm device (5) which delivers a warning signal at the begi... | 09/05/2006 |
| 6902150 | Steel yielding guardrail support post A guardrail support post includes a continuous structural member having a top edge, a bottom edge, and a generally uniform cross section from the top edge to the bottom edge. The structural member includes first and second generally parallel flanges, and a web formi... | 06/07/2005 |
| 6360825 | Automatic fire extinguisher system for use on cookstoves and ranges The present invention is an automatic fire extinguisher that is ideally suited for use with electric or gas stoves. The automatic fire extinguishing device is designed and configured to be removably secured to any sized commercial or residential range hoo... | 03/26/2002 |
| 6340058 | Heat triggering fire suppressant device A fire suppressant device that may be rendered automatic by exposing the device to an elevated temperature. The preferred device comprises a canister housing with a uniform cross section throughout its length, and includes a piston member disposed for sli... | 01/22/2002 |
| 6032745 | Valve for fire suppression device A fire suppression valve for use with a cannister of fire suppression material. The valve has a housing with a central connection for attachment to the cannister and communicating with a central chamber. The central chamber has a relatively smaller outlet... | 03/07/2000 |
| 6003609 | Fire safety device A fire safety device for controlling the spread of fire in a structure. The invention comprises a base plate, a smoke detector, a syringe, and a cover. The syringe has a reservoir containing a fire retardant chemical. A fuse link holder has a melting fuse... | 12/21/1999 |
| 4718498 | Automatic trigger mechanism for portable fire extinguishers A flame sensing device is connected to complete a circuit to supply current to an electromagnet to release fire extinguishing fluid to extinguish the flames. The flame sensing device includes a first spring which extends when heated, and a second spring i... | 01/12/1988 |
| 4284144 | Passive explosion barrier for mines A passive explosion barrier is provided for use in mining operations in suppressing mine explosions. The barrier basically comprises a receptacle or tub which contains an explosion suppressing substance, such as water, and is mounted on a frame adjacent t... | 08/18/1981 |
| 4011911 | Portable fire extinguisher A compact portable fire extinguisher is described which distributes through the action of centrifugal force, a fire extinguishing liquid or chemical over a well defined area. In one embodiment of the invention a spring wound bell-shaped dispensing housing... | 03/15/1977 |
| 3960217 | Passive explosion barrier A passive explosion barrier for suppressing the effects of an explosion in a mine gallery, or the like, comprises a receptacle containing an explosion suppressing substance adapted to be supported by framework adjacent the mine roof. In one embodiment, a ... | 06/01/1976 |