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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 |
| 7275488 | Auto rack railway car A railway car for transportation of motor vehicles. The railway car may be articulated, comprising two or more units. The railway car may have end doors which are pivotally attached to the roof of the railway car. Flexible seals may be provided along the inner and o... | 10/02/2007 |
| 6289822 | Auto rack railway car A railway car for transportation of motor vehicles. The railway car may be articulated, comprising two or more units. The railway car may have end doors which are pivotally attached to the roof of the railway car. Flexible seals may be provided along the ... | 09/18/2001 |
| 6067912 | Automated discharge system for hopper car A single circular or cylindrical door is provided which covers a pair of horizontal discharge openings in a hopper car construction transversely of the longitudinal axis of the rail car. Each circular or cylindrical door is pivotally mounted to the rail c... | 05/30/2000 |
| 5765486 | Auto rack railway car A railway car for transportation of motor vehicles. The railway car may be articulated, comprising two or more units. The railway car may have end doors which are pivotally attached to the roof of the railway car. Flexible seals may be provided along the ... | 06/16/1998 |
| 5657700 | Railroad hopper car with ballast distributing blades and remote control system A ballast distributing railroad car has a number of ballast hoppers, each with a selectively operable hopper discharge control member which is operable to selectively drop material from the respective hopper either inside of or outside of the rails of a r... | 08/19/1997 |
| 5423268 | Railroad hopper car with ballast distributing blade and hopper door and blade control apparatus and method A ballast distributing railroad car has a number of ballast hoppers, each with a selectively operable hopper door. The railroad car also has a pair of ballast distributing blades pivotally attached beneath it, one at either end of the car, with the blades... | 06/13/1995 |
| 5311822 | Ballast hopper door control apparatus and method with independently and selectively actuated motors in response to uniquely coded signals A ballast hopper car door control apparatus and method for controlling a pivoting hopper discharge control member on a railroad ballast car or the like, includes a drive shaft extending through the discharge control member at the pivot point. A transmissi... | 05/17/1994 |
| 4964348 | Drop end, open top rail car A pivoted drop end for a railway car which is adapted to be manipulated (lifted) by power equipment in the car to open or close the car end. The car end includes lower side posts, each having a cam follower running in a cam on the car frame which swings t... | 10/23/1990 |
| 4706854 | Particulate material handling Apparatus and method for containing and feeding particulate material tending to pack into a mass from an elongated hopper having opposed sloping walls converging downward and inward towards each other to terminal margins presenting between them an elongat... | 11/17/1987 |
| 4580502 | Device for unloading a container for bulk materials A device for unloading a container used for bulk materials is such that a container floor is made up at least in part of flaps which can be tilted or swung out away from the interior. To this end at least two flaps are connected via a ridging beam or axle... | 04/08/1986 |
| 4574989 | Swing gates In a hopper or the like wherein the flow of particulate material is controlled by a gate the improvement wherein the gate is mounted to be swingable towards an open position within the hopper so as to break arches and rat holes which form in the material ... | 03/11/1986 |
| 4550665 | Bottom discharge hopper structures A hopper car in which the body has vertical end walls and side walls each comprising a sloping lower portion and a vertical upper portion. The two sloping lower portions converge downwardly and their horizontal lower edges define a discharge opening. One ... | 11/05/1985 |
| 4452149 | Gate assembly unit for hopper-type railroad car A hopper-type railroad car for transporting ballast used for roadbed restoration includes a set of bottom outlets for discharge of the ballast. Gate assembly units are installed over these outlets to provide regulation of the ballast discharge. Each unit ... | 06/05/1984 |
| 4196932 | Bottom discharge gate and actuating mechanism A hopper gate and pneumatic actuating mechanism for controlled discharge of bulk materials from a bottom-unloading vehicle are described. The hopper gate comprises an arcuate closure plate pivotally mounted by wedge shaped end plates below a rectangular h... | 04/08/1980 |
| 4163583 | Pneumatic hopper outlet cap latch A pneumatic hopper outlet, where the discharge conduit end cap is held in place with at least one large headed bolt which is pivotably mounted on the discharge conduit and which engages at least a portion of the end cap. The large headed bolt is attached ... | 08/07/1979 |
| 4151935 | Sampling assembly for pneumatic outlet A pair of longitudinally spaced valve elements are provided in a pneumatic outlet. Each valve element includes a body portion, preferably a segment of a circle, including a body portion edge which seats on a body portion valve seat located adjacent the bo... | 05/01/1979 |
| 4114785 | Control valve for bottom discharge outlet A discharge outlet for attachment to the bottom of a hopper which has a longitudinally extending discharge opening between spaced inner edges of the outlet side walls. An elongate control valve is mounted for rotation about a horizontal axis in the discha... | 09/19/1978 |
| 4009664 | Closure actuating device for railway hopper car doors A closure actuating device is disclosed for freeing rotation of discharge control doors for railway hopper cars of the type where the door assembly is supported for rotation about a pivotal axis parallel to and beneath the discharge opening in the railway... | 03/01/1977 |
| 3997089 | Sealing hopper closure assembly A discharge gate assembly for sealing and controlling the flow of particulate material from a discharge opening in a hopper of the type used on semi-trailers, railroad cars or storage bins is disclosed wherein the discharge gate assembly comprises a frame... | 12/14/1976 |
