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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 |
| 6996754 | Integrated circuit device having an internal state monitoring function An integrated circuit device for testing is disclosed. The device includes a plurality of internal circuits for generating a plurality of internal signals, the internal signals used for addressing storage locations and for controlling internal operations, a first se... | 02/07/2006 |
| 5825404 | Flaw recovering apparatus for optical recording medium A flaw recovering apparatus for an optical recording medium comprising a liquid tank for applying refractive index matching liquid onto a recording surface of an optical card to form a refractive index matching liquid layer, a liquid applying roller, a fi... | 10/20/1998 |
| 5538554 | Apparatus for dispensing ink for semiconductor device testers An apparatus for dispensing ink onto a semiconductor chip in a semiconductor device tester, the apparatus comprising a ring shaped support for attachment to the inside wall of a test head of the semiconductor tester; a pedestal slidably supported on the r... | 07/23/1996 |
| 5523698 | System for making tested printed circuit boards in circuit board testing machines A system for marking printed circuit boards (4), that can be applied to machines (1) for electrically testing printed circuit boards, in which the circuit to be tested is positioned in the test area of the machine, where a constant-pitch grid, or pin bed ... | 06/04/1996 |
| 5455605 | Inker apparatus Inker apparatus includes an ink reservoir and a chamber communicating with the reservoir and in which chamber there is a piston movable against a spring bias. The chamber in which the piston is disposed is in turn connected to a needle through which ink i... | 10/03/1995 |
| 5426509 | Device and method for detecting foreign material on a moving printed film web A device for detecting contaminant particles on a surface of a monochrome web of material of a first color imprinted with a second color different from said first color comprises a frame member with a feed roll of said web material and a takeup roll, with... | 06/20/1995 |
| 5416428 | Marker probe A test fixture for testing printed circuit boards comprises an array of electrically conductive test probes mounted within the fixture, a marker probe mounted for contact with the board, and a marker probe drive motor for rotating the marker probe in resp... | 05/16/1995 |
| 5363040 | Non-destructive eddy current part testing using thermal printing A scan head includes an eddy current probe and a thermal print head. A sheet of thermal paper is mounted to the top of a laminated part being inspected and the scan head is moved across the surface of the part. A map of defect markings will appear on the ... | 11/08/1994 |
| 5043663 | Method and apparatus for detecting angular defects in a tubular member A method and apparatus for determining the extent of defects in tubular elements for use in an oil or gas well is disclosed. The apparatus includes an electromagnetic or other suitable inspection device, cooperating with longitudinal and circumferential p... | 08/27/1991 |
| 5030911 | Method and apparatus for displaying defects in tubular members on a two-dimensional map in a variety of display modes A method and apparatus for determining the extent of defects in tubular elements for use in an oil or gas well is disclosed. The apparatus includes an electromagnetic or other suitable inspection device, cooperating with longitudinal and circumferential p... | 07/09/1991 |
| 4992729 | Low profile inker A low profile inker for use in a semiconductor testing apparatus. A probe test head of the apparatus detects defective circuits on a semiconductor wafer and generates control signals in response thereto. The inker is connected to the testing apparatus by ... | 02/12/1991 |
| 4808926 | Eddy current apparatus and method for controlling a rod mill on the basis of faults detected per unit time Method and apparatus for monitoring a rod mill and flexible wire drawn and annealed from a stiff coil of rod in the rod mill are disclosed. The fault signals provided by an eddy-current tester are counted on a per unit time basis in order to permit the de... | 02/28/1989 |
| 4799168 | Data recording apparatus for an ultrasonic inspection system A multi-channel ultrasonic inspection system includes an ultrasonic inspection unit which generates ultrasonic inspection pulses, supplies the pulses to a part being inspected, produces an output signal proportional to the level of echo pulses received wi... | 01/17/1989 |
| 4731136 | Process for recycling used tires The present process allows recycling used tires which are at present considered to be no longer suitable for restructuring according to known processes. According to the invention a preliminary control is carried out, also by scanning by means of a laser,... | 03/15/1988 |
| 4700564 | Device for automatically identifying catenary posts of a railway track to locate faults detected on the railway track The invention relates to the location of singular points in the automatic control of railway tracks. According to a possible embodiment, the railway carriage (11) carrying the control equipments is provided with radar antennas (25a, 25b) orientated to det... | 10/20/1987 |
| 4477890 | Mapping disc defect detector Apparatus for generating a map of detectable characteristics of a disc. A scanning signal display device has a detector coupled to the intensity input thereof. The detector detects the characteristics at a location on the disc which is scanned in a spiral... | 10/16/1984 |
| 4400708 | Disposable inker cartridge and holder therefor A disposable inker cartridge (10), (210), (310) mountable in a holder (110) attachable to a marking head of a semiconductor wafer testing machine, and the like, provides a large reservoir of ink or other marking fluid a predetermined amount of which can b... | 08/23/1983 |
| 4390885 | Apparatus and method for fluid transfer An apparatus having a reservoir for enclosing a fluid and a valve for selectively applying gas under pressure to said reservoir and venting said reservoir to the ambient air. A controller supplies a pulse of predetermined duration selected from a pluralit... | 06/28/1983 |
| 4258573 | In line ultrasonic inspection apparatus and method Method and apparatus for in line ultrasonic inspection of linearly extending brazed composite workpiece including a linearly extending bonded region, traveling linearly at a given speed. A source of ultrasonic signals is focussed on the workpiece and is r... | 03/31/1981 |
| 4172379 | Apparatus for inspecting a pipeline for leaks A method and apparatus for automatically adjusting the gain of an ultrasonic device for inspecting a pipeline for leaks. The ultrasonic device is designed to pass through the interior of a pipeline and record noise produced by fluids leaking from the pipe... | 10/30/1979 |
| 4155098 | Groove depth estimation system using diffractive groove effects Groove depth estimation apparatus provides an incident light beam which illuminates the surface of a grooved disc with a light spot that spans a plurality of convolutions of the groove. The structure of the groove convolutions serves as a diffraction grat... | 05/15/1979 |
| 4144536 | Inker network for probing machine A inker network for use with a tester and a probing machine for marking semiconductor wafers and including a delay circuit for receiving clocking pulses and a first ink command pulse from the tester and for generating a delayed ink command pulse which is ... | 03/13/1979 |
| 4133918 | Method of marking semiconductors A non-contacting, non-clogging, electro-mechanically operated marking device or inker for continuous or intermittently marking a semiconductor wafer die is disclosed together with a method of operating the device. The marking device has an ambient pressur... | 01/09/1979 |
| 4069484 | Defect plotting system High speed writing apparatus, for mapping 1:1 polar plots of disc record defect locations on disc-shaped electrosensitive paper, accepts electrical signals representing defect occurrences from a defect detector which scans the disc record surface in a spi... | 01/17/1978 |
| 3996883 | Device for balancing rotors Device for the balancing of rotors, comprising a chamber for a liquid balancing compound, the chamber containing electrodes connected to a pulse generator which is connected electrically with the output of a control unit whose input is connected to a tran... | 12/14/1976 |
| 3977008 | Method and an apparatus for detecting and recording the number of phenomena A method and an apparatus for detecting and recording the number of phenomena, for instance of defects of a product continuously manufactured, wherein a graphic record is made on a recording tape in a direction transverse to the advancing direction of sai... | 08/24/1976 |
| 3968769 | Apparatus for balancing rotors A rotor balancing apparatus comprises a chamber for balancing material, the chamber having a nozzle and being arranged in the field produced by an electromagnetic inductor coupled to a pulse generaor which, in turn, is electrically connected to the output... | 07/13/1976 |
| 3967194 | Method for flaw location in a magnetizable pipeline by use of magnetic markers positioned outside of said pipeline A magnetic flux leakage method and apparatus for inspecting magnetizable test objects such as pipelines are disclosed. Magnetic diodes are connected to give temperature-independent readings of flux leakage and are spaced apart according to the size of the... | 06/29/1976 |
| 3951062 | Method of recording medical and surgical patient information Medical and surgical information, diagnostic findings, anatomical abnormalities and/or changes, and the like are rapidly and accurately recorded in a patient's chart by reproducting, duplicating or imprinting, as by stamping, an anatomical outline or grap... | 04/20/1976 |
| 3943527 | Noncontacting marker A noncontacting marking apparatus for ejecting, upon receipt of a control signal, a drop of marking liquid for marking purposes. The amount of marking liquid is controllable. A tube couples the ejection point of the marker to a source of vacuum for removi... | 03/09/1976 |
