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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 |
| 7675631 | Holographic optical element A method of measuring a dimension and/or position of an object located in a measuring field, includes projecting a fan-shaped reference wave onto a holographic optical element having a first interference pattern and a second interference pattern; forming a first par... | 03/09/2010 |
| 7201056 | Device and method for measuring an extruded flat-cable conductor Provided is a device for measuring at least one parameter of an extruded flat conductor cable in a water bath that follows the extruder. The device distinguishes itself in that the flat conductor cable is guided with one of its flat sides essentially perpendicular a... | 04/10/2007 |
| 7140253 | Device for the ultrasound measuring of cylindrical test models A device is provided for the ultrasonic measuring of cylindrical test specimen, in particular tubes and hoses, wherein said device can be filled with water or submerged in a water bath and is provided with at least one ultrasonic measuring head secured on the device... | 11/28/2006 |
| 7068359 | Contactless system for measuring centricity and diameter A contactless system for measuring centricity and diameter includes an optical measuring device for determining the external diameter and the position of a cable on an optical, perpendicular plane that runs transversally to the central axis Z of a measuring device. ... | 06/27/2006 |
| 6678063 | Measuring device for reinforcing steel rods for concrete The invention relates to a method and an arrangement for optically detecting the measurements, in particular the diameters, of a long object during or after its production, which object moves forward continuously at high speed in lengthwise direction. Wit... | 01/13/2004 |
| 5976449 | Method and apparatus for the cross-sectional measurement of electric insulated conductors A method and an apparatus for measuring an electric insulated conductor, in particular a medium-voltage and/or high-voltage insulated conductor, are proposed. Seen in profile cross-section, the insulated conductor (50) includes a copper conductor, an inne... | 11/02/1999 |
| 5418616 | Method and apparatus for optically detecting the dimensions of an object and use of the method Two optical windows serve for the passage of a light beam through a treatment chamber in which a product is disposed whose dimensions are to be detected. Between the treatment chamber and each one of the optical windows there is disposed a rotary valve, w... | 05/23/1995 |
| 5383022 | Method and apparatus for measuring the dimensions of an object Laser beams from separate sources are deflected by a rotating mirror and travel over further mirrors and objective lenses into a measuring field for measuring the dimensions of an object 3 in the x and y directions. The result is a simple, compact configu... | 01/17/1995 |
| 5302904 | Method of detecting insulation faults and spark tester for implementing the method A testing voltage of 800 to 5000 volts is applied to a measuring electrode constructed of carbon fiber brushes. This testing voltage is regulated to the desired value by means of a control circuit. Sparkover pulses travel through a filter to an output, wi... | 04/12/1994 |
| 4955694 | Process for producing HOE's for use in combination to produce a telecentric beam A light beam is repeatedly deflected in the longitudinal direction through a holographic element HOE by means of a rotating multi-faceted mirror. This HOE is so formed that the beam entering at different angles leaves the HOE as a telecentric beam. Throug... | 09/11/1990 |
| 4832426 | Process for the production of a telecentric light beam, device for carrying out this process and process for the production of an HOE A light beam is repeatedly deflected in the longitudinal direction through a holographic element HOE by means of a rotating multi-faceted mirror. This HOE is so formed that the beam entering at different angles leaves the HOE as a telecentric beam. Throug... | 05/23/1989 |
| 4792695 | Contact-free measuring apparatus having an F-theta-corrected, catadioptric objective and method for using the same An apparatus for the non-contacting measurement of rod-shaped objects contains a telecentric, F-theta-corrected objective which comprises two catadioptric elements. The first catadioptric element is a Mangin mirror and the second catadioptric element is a... | 12/20/1988 |
| 4641525 | Method and apparatus for checking the wall thickness of a layer In a method of checking the insulating sheath on a wire or cable leaving an extruder, the external diameter of the insulating sheath is continuously determined over the whole circumference by means of a first measuring apparatus and the wall thickness of ... | 02/10/1987 |
| 4616931 | Process and device for the contact free determination of the movement of an object An image of a moving object with an optically differentiatable structure is projected onto a grid of opto-electric transducers through a lens. The output signals of at least one square group of four transducers A-D are processed to produce from output sig... | 10/14/1986 |
| 4444457 | Process and device for the production of a telecentric light beam and use of the process In a device for the production of a telecentric light beam which is to be deflected over a defined region an incident light beam impinges upon a rotating plane mirror. The light beam reflected thereby reaches the outlet of the device by way of a further c... | 04/24/1984 |
| 4424480 | Process for the measurement of the specific capacity of a cable and a device for carrying out the process In a process and device for measuring the specific capacity of an electric cable by means of a cylindrical measuring electrode through which the cable is passed and between which and the cable conductor an alternating voltage is maintained, the capacitati... | 01/03/1984 |
| 4416541 | Process and device for the measurement of a physical quantity of an extruded element For the measurement of a dimension of an object in a liquid, windows are provided in a vessel containing the liquid and the object, and parts of an optical measuring apparatus for the determination of the dimension of the object are arranged in the region... | 11/22/1983 |
| 4181961 | Process for the measurement of absolute values by means of a non-linearly working measured value emitter, and a measuring device for carrying out the process In a process for the measurement of absolute values by means of a non-linearly working measured value emitter, calibration of the measuring device is achieved by determining, for each of a range of measured values emitted, the corresponding absolute value... | 01/01/1980 |
| 4157503 | Apparatus and method for testing the thickness of the wall of a moving tube leaving an extruder An apparatus for testing the wall thickness of a moving tube of plastics or other electrically non-conducting material being produced by an extruder, comprises an electrically conductive measurement body arranged in the moving tube, a ferromagnetic holdin... | 06/05/1979 |
| 4137639 | Device for the measurement of the wall thickness of tubes A device for the measurement of the wall thickness of tubes, in particular for the measurement of extruded synthetic tubes during the extrusion process, comprises a common support for location within the tube and a plurality of measuring bodies mounted on... | 02/06/1979 |
| 4115702 | Device for measuring at least one dimension of an object and a method of operating said device A device for measuring at least one dimension of an object comprises two light channels of which one is intended to receive the object and the other serves as a reference channel. Light from the two channels is conducted to respective photo-electric trans... | 09/19/1978 |
