Bizarre Patents
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 |
| 6339885 | Astrolabe having rotating rete and plate In the astrolabe herein, both the rete and the plate rotate, although around different centers. The stars are drawn onto the plate, and the coordinate system is represented by the rete. In contrast to the conventional astrolabe, where the stars and the co... | 01/22/2002 |
| 5450674 | Multipotent astrolabe A multipotent astrolabe is used to determine the positions of various celestial bodies by applying the circular star atlas and taking into account ephemeral time and the porjections of the relative positions of the moon, the sun and the stars as viewed fr... | 09/19/1995 |
| 5276972 | Satellite locator An apparatus which can be carried to a field sight to locate current and future positions of geosynchronous satellites orbiting the equator in the Clark Belt Altitude. The apparatus corrects the error in viewing angle by providing corrections in longitude... | 01/11/1994 |
| 4696109 | Satellite locator The sighting angles to above horizon points in the geostationary satellite orbit around the earth are determined from any known location on the earth with this device.... | 09/29/1987 |
| 4236313 | Apparatus for and method of evaluating solar exposure A technique is disclosed herein for evaluating solar exposure at various points in any one of a number of given geographic locations for any given period during the year in order to determine the most efficient location for a solar collector. This techniq... | 12/02/1980 |
| 4154190 | Calibrated aircraft directional gyro for indicating holding pattern entry procedure A directional gyro for aircraft having on its stationary face plate, color zones referable separately to portions of the 360° movable directional scale; each color zone indicating a particular entry procedure (direct, parallel, or tear drop) for the pres... | 05/15/1979 |
| 4102054 | Sundial A sundial which is adjustable with respect to its mounting location to correct for its earth location in both longitude and latitude. The sundial is provided with solar time equation indicia and indicator to correct real solar time to mean solar time and ... | 07/25/1978 |
| 4096646 | Device for identifying and locating a star in the heavens A device for identifying and locating a star in the heavens including an axis rod having a globe rotatably mounted thereon. A hoop is rotatably mounted on the axis rod for rotation about the globe. A mount having a sighting tube thereon is slidably mounte... | 06/27/1978 |
| 3981080 | Mechanical device for astronomical calculation A mechanical device adapted for determining the position of an observer by star-sight observations comprising a hollow portable sphere, having a number of sets of pairs of holes, the two holes in each set lying at diametrical extremities by which the sphe... | 09/21/1976 |
