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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 |
| 7121764 | Portable flood barrier section and flood barrier A portable flood barrier section is located on a ground (2) to form a barrier (3) against flooding water (4), comprising an erectable wall (5) which along one of its edges (6) is hinged to a basis. The hinge (7) enables a ro... | 10/17/2006 |
| 7033112 | Water-retaining structure Device for retaining water comprising a foundation, a retaining wall movably attached to the foundation and a shore movably, particularly hingingly, attached to the foundation, in which the shore and the retaining wall are movably, particularly hingingly, attached t... | 04/25/2006 |
| 6975308 | Digital picture display frame The present invention provides a picture frame for displaying digital images taken by a digital camera. The invention may be a wall mounted frame or a desk top frame. The invention includes a display, such as an active matrix display for rendering images for viewing... | 12/13/2005 |
| 6676333 | Frame members for a portable dam A frame structure for use as a portable dam. Each frame structure is comprised of a support beam, a base beam and at least one brace beam connected together in pivoting relationship so that the beams may be folded down together for quick assembly and disa... | 01/13/2004 |
| 6514011 | Movable water-protection apparatus The present invention provides a movable water-protection apparatus capable of driving a water barrier plate manually or automatically when needed. The movable water-protection apparatus includes a water barrier plate (2, 50) for shutting out water, such ... | 02/04/2003 |
| 6302622 | Tamping rammer A tamping rammer capable of optimum tamping of the ground by its stable jumping behavior when tamping hard ground without giving rise to unstable jumping of the machine, includes a tamping foot having a tamping plate which has an area for supporting the m... | 10/16/2001 |
| 6196764 | Automatic wicket for a hydraulic structure An automatic flashboard (10) comprises a wall (12) installed on a hydraulic structure (11) so as to be capable of passing from an erect position in which it retains a mass of water to a lowered position in which it allows the water to pass substantially w... | 03/06/2001 |
| 6132140 | Method for the fabrication of a dam or barrier A water dam includes a number of loading pallets arranged side-by-side and inclined outward from the water supported by supports. Membranes are placed on loading pallets and extend a distance in front of the pallets under the water. The membranes may be h... | 10/17/2000 |
| 5882144 | Device and method for triggering the destruction of a selected part of a hydraulic structure, such as a levee, a dike or a backfilled dam, and hydraulic structure comprising such a device This device for triggering the destruction of a selected portion (1 or 11) of a hydraulic structure such as an embankment dam, dike, or levee built out of erodible material so as to be destroyable by hydraulic erosion is constituted by at least one massiv... | 03/16/1999 |
| 5758989 | Linear action hurter A hurter for use in conjunction with a wicket dam prop at a downstream side f a wicket, the hurter comprising a block having therein on an upper surface thereof a bearing for receiving a free end of the prop, a ramp disposed downstream of the block on a ba... | 06/02/1998 |
| 5372456 | Irrigation control structure An irrigation water control gate for controlling the amount of water delied downstream. The gate includes a frame and a pair of panels in the frame hingedly connected at adjoining horizontal side edges and forming a wedge shape extending upstream. The up... | 12/13/1994 |
| 5310284 | Weak link prop for wicket dam The invention is directed to a breakaway prop for a wicket employing a slble and rotatable prop bearing which is secured to the prop by shear pins. Upon application of sufficient force, the shear pins release the prop bearing and allow the wicket to drop... | 05/10/1994 |
| 5222834 | Collapsible safety prop for waterway dams A collapsible safety prop for supporting a waterway dam gate comprising first and second links, each of which has a longitudinal axis and an inner and outer end. The inner ends of the links are provided with a lateral member extending laterally from the l... | 06/29/1993 |
| 5178490 | Wicket dam lifting module In one embodiment, the invention is directed to a hydraulic lifting module hich is removable as a unit from a wicket dam. A hydraulic cylinder is pivotably mounted about an axis in the frame and extends outwardly of an apertured cover between extreme posit... | 01/12/1993 |
| 4836711 | Hinge-assembly, particularly for underwater mounting A hinge assembly for barrier gates, sluice gates and the like attempted to be raised from beneath the sea, has a fixed portion mounted in a base which can be provided with a tunnel affording access to it and enabling a tierod to pull a replaceable body ag... | 06/06/1989 |
| 4352592 | Gate system for a hydraulic dam The gate system comprises a wicket which is capable of taking up a number of different positions corresponding to predetermined angles of inclination, an operating device comprising a pivotally mounted jack, and a rotatable abutment member carried by the ... | 10/05/1982 |
