Abstract: This portable weighing system for aircraft includes a plurality of individual load cells which are connected to a central computing and display unit capable of storing dimensional characteristics of commonly encountered aircraft. The computer within the central unit compensates by its programming for nonlinearities in the response of the load cells. The output display can include aircraft gross weight, center of gravity (optionally displayed as percentage of the mean aerodynamic chord). Interactive capability is also provided to facilitate input of aircraft dimensional characteristics which are not already contained within the memory of the central unit.

Abstract: A mechanical biasing device to drive an aircraft control surface to a predetermined position relative to the main airfoil, either directly or indirectly through a linkage system, while also providing sufficient clamping force at the neutral position so that the airfoil and control surface behave dynamically like a single structure.

Abstract: The rotate function of this invention involves cyclic shifts of 1 to 4 byte data by an amount of 0, 1, 2, or 3 bytes either to the left or to the right. Only one CPU firmware clock cycle is required regardless of the shift amount. This shifting is done either on data which is transferred from computer memory or on data prior to its transfer into computer memory. Firmware-controlled hardware shifts the bytes in the data field in response to information provided concerning the location of the most significant byte in memory relative to the boundaries of the data word and the length of the data word. The firmware can also directly specify the amount of the shift.

Abstract: A flight control surface coupling system which provides a two-element drive coupling between two control surface segments. The first element is a torsion bar that has adequate spring rate to suppress surface flutter yet soft enough to deflect and function as a low load compliance element between sets of drive actuators. The second element is a drive coupling that permits the two surface segments to move freely within its stops. The stops are spaced to allow easy determination of out-of-rig conditions and small enough to provide an effective drive to move one segment through the second segment with a single actuator. Structural fatigue loads are greatly reduced without sacrificing surface positionability.

Abstract: High density, simplified fabrication and the elimination of sidewalk leakage effects are achieved by the implementation of a self-aligned ion-implantation step during the fabrication of the MNOS transistor wherein, after the formation of the gate electrode of the transistor, low energy ions are implanted within the nitride layer of the MNOS transistor in the regions of the nitride layer adjacent to the gate electrode.

Abstract: A chain drive system (10) wherein the chain (12) includes a plurality of interconnected links (14) is provided. The chain drive system (10) includes a drive gear (28) for driving the chain (12). A rack (20) is provided and includes a plurality of spaced apart teeth (22) for engagement with the links (14) of the chain (12). Idler gears (38, 40) are provided for causing engagement between the chain (12) and the rack (20).

Abstract: A vibration sensor is formed by coupling the vibration to be sensed to change the positional relationship between grating means and light beams so that the resultant variations in light intensity of the beams beyond the grating means vary with a function of the sine and cosine of the positional change. This allows the detection of the vibrationover a wide range of frequencies and amplitudes.

Abstract: A slat system in which the slats are supported on tracks and the slats are actuated by a simple bell crank linkage oriented so that its plane of motion is parallel to the wing chord reference plane. The mechanism retracts to a collapsed over-center position and extends to an over-center position so as to lock the slat into the retract or extend positions. Each slat segment is driven by two identical mechanisms tied together by a synchronization link which provides redundancy. Either actuator can drive the surface alone, as the second actuator is driven through the synchronization lever, in case of power loss to the second actuator.

Abstract: An adjustment and training aid for golf clubs which allows the adjustment of the loft and lie angles for the physical characteristics and stance of a particular golfer. The device includes a base with a raised abutment surface on a horizontal platform against which the leading edge of the head of the club to be adjusted is positioned. With the golfer in his normal stance holding the club stationary against the abutment surface, a pointer of adjustable length is attached to the face of the club. The pointer is extended to an upstanding wall of the base having indicia thereon of loft and lie angles for the various clubs to indicate the actual loft angle and the direction a ball being hit would travel. Any misalignment of the expected ball direction from a centerline indicates an error in the lie angle of the club as it is being held.

Abstract: A fastener with a special head having a threaded recess and torque receiving recesses is matched to a tool which threadably engages the head and utilizes the threaded engagement to provide a solid base for torque applicators, such as drive pins, drive blades or a serrated drive disc so that high torque fasteners which otherwise would use Phillips, Tri-wing or Reed and Prince torquing systems, can be installed and removed without fear of the torquing tool camming out of their heads and thereby ruining them or requiring extensive jigs or other holding devices to prevent such camming action.

Abstract: The unique construction of this Continuous Flow Electrophoresis Apparatus eliminates the need for ion permeable membranes between the electrode chambers at the sides of the separation chamber and the separation chamber itself. By carefully controlling the relative geometries of the electrode chambers and the separation chamber, a membrane-less electrophoresis separation may be conducted without the problems attendant to these chambers which utilize ion permeable membranes.

Abstract: A heat pipe formed by metal deposition, on porous metal wick parts, which forms the enclosure and provides both a metallurgical bond to the wick and a hermetic seal.

Abstract: A universal sleeve for use in an air recirculation barrier to seal off the passage of air around penetrating components comprising a flexible piece of material joined along two edges to enclose the components passing thru the barrier. The engaging edges of the flexible material has Velcro tape of hook and pile construction to closely surround penetrating components and limit the passage of air along the components thru the barrier. Sealing tape may be used on the edges of the flexible material to further seal off the passage of air.

Abstract: This combination process enables both MNOS and CMOS devices to be fabricated upon the same wafer in very large scale integration systems. Conventional moat isolation techniques are replaced with low temperature ion implantation processing to accomplish substrate isolation. Both n and p channel MOS transistor diffusions and field oxidations are processed concurrently. Also, this process utilizes bulk silicon wafer material rather than epitaxial wafer material as the substrate.

Abstract: One or more channels whose edges generate streamwise vortices from heights coincidental with a local flow-control surface into the channels are used to maintain attached flow of a fluid medium flowing therepast, even in areas of severe regional adverse pressure gradients. The channels are generally triangular in shape with the apex forwardmost in the flow. The channels work very effectively when nested in series and are most effective when the channels extend to the trailing edge of a flow-control surface.

Abstract: A unit for placing on one or two burners of a gas or electric range, which applies air heated thereby to cook food on an elevated grill while catching fat, juices or sauces in a container kept cool enough by the internal construction thereof to prevent excessive smoking or cooking odors from escaping the unit. This is accomplished by providing a heat deflector, convection current diffuser which passes the heat from the burner around the fat receptacle and convects and radiates the heat onto the food.

Abstract: A system for providing a Head-Up Display (HUD) on board an aircraft to assist a pilot in guiding the aircraft. The display is positioned in the pilot's normal line of sight. In one mode it utilizes a radio beam landing system such as an ILS (Instrument Landing System) to generate symbols that correspond to visual ground cues which, together with an aircraft symbol display, provide the pilot with cues for aligning the aircraft on the appropriate path for approach and landing. The system moves the aircraft symbol in accordance with motion changes of the aircraft. During a landing approach the pilot "flies" the aircraft symbol relative to the simulated and/or real ground cues. By making the HUD correspond with ground cues, the abrupt transition from instrumented to visual flight is eliminated. At altitudes below which available ILS is not acceptable, the system provides a smooth transition to a mode independent of ILS and then to a flare mode.

Abstract: Room temperature operation of a multiple laser diode array is enabled without the need for liquid cooling by interleaving individual laser diode assemblies with electrically insulating but thermally conducting spacer heat sink layers which have electrically conducting portions adjacent the laser diode assembly such that the multiplicity of individual laser diode assemblies within the array may be operated electrically in series. The alternating leaves of the array are confined between top and bottom end plates, and the entire assembly is secured together by appropriate means.