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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 |
| 5043719 | Matrix circuit A matrix circuit has a plurality of blocks each including a plurality of semiconductor unit elements, the semiconductor unit elements of each block being adapted to be impressed with a predetermined voltage at the same time, each unit element becoming act... | 08/27/1991 |
| 4766568 | Generic associative memory A computer memory device (10) for storing identified associations between data items of a data collection comprises an array (15) of signal flow pathways (1,2,3 etc) which are respectively rendered representative of data items by an indexing component (12... | 08/23/1988 |
| 4598378 | Management information system and associated vending control device The combination of a vend control circuit with a device to accumulate an ongoing history of the operation of a vending machine capable of vending products and making change, the improvements comprising circuit elements for detecting the occurence of an in... | 07/01/1986 |
| 4479368 | Programmable knitting machine (a) A programmable knitting machine (b) Machine comprising a matrix formed of conductors (A1) intersected by conductors (Bj) at a point of intersection (Tij), display means (4), means (11, 12, 15, 16) for bringing the conductor... | 10/30/1984 |
| 4292476 | Speech channel switching networks suitable for use in combination with electronic key telephone sets In a key telephone system including an electronic speech channel switching network and an electronic key telephone set selectively connected to central office lines by the speech channel switching network, the speech channel switching network is constitut... | 09/29/1981 |
| 4284208 | Vend control system A vend control system capable of vending products or services as selected comprising a plurality of vend producing devices each capable when actuated of producing a vend, circuits connecting the vend producing devices in a matrix circuit wherein the devic... | 08/18/1981 |
| 4234872 | Circuit arrangement for a keyboard A circuit arrangement for a keyboard is disclosed, in which the switches of the keyboard are each connected in series with a respective LED to form a switch matrix, the rows of which are connected to a multiplexer and the colums of which are connected to ... | 11/18/1980 |
| 3974478 | Key switch scanning and encoding system In this key switch scanning and encoding system, open (OFF) switches may be scanned at a faster rate than closed (ON) switches, and a coded signal is produced indicative of each closed switch. The switches are arranged in a matrix of M groups each connect... | 08/10/1976 |
| 3944980 | Electronic sequence control system Electrical sequence control system. There is described an electrical sequence control system which is controlled according to a predetermined program by means of a switching circuit wherein the outputs of the binary counter are connected with n bits to th... | 03/16/1976 |
