Abstract: An improved precision approach radar (PAR) system using an integrated digital display for displaying the relative position of one or more targets, e.g., aircraft, to a preferred glide path and azimuth course line. A preferred PAR system uses a radar head which emits a pair of scanned radar beams and interprets reflected responses to individually determine aircraft targets, weather patterns and/or obstructions and displays each reflection category as a different pattern, preferably color coded, on an essentially non-flickering monitor.

Abstract: A unitarily formed diverter valve assembly for use in liquid chromatography. The valve assembly comprises a plurality of inlet and outlet ports, diverter valve systems, chambers, and a tortuous network of passageways all of which are arranged to accommodate the flow of fluids in a liquid chromatography system. The valve assembly is configured so as to direct the flow of fluid coming from an inlet port through the valve body where it can then be reversibly directed into or out of a chromatography column. On returning from the column, the fluid reenters the valve assembly where it is directed to an outlet port in order to exit the system. The valve assembly can also be configured so as to bypass the column altogether. Since the entire valve assembly is machined out of a single block of material having smooth liquid passageways, and since all flow compartments are shared and fully flushed when a flow-through valve is opened, dead-legs are virtually eliminated from the system.

Abstract: Apparatus for use in an unsupervised public setting to receive a smart card so the card front portion can enter a card reader (20), which safeguards the card reader from vandalism. A card gate mechanism (30) includes a gate device (32) that is moveable between a closed position wherein it blocks the card path (16) and an open position which allows passage of the card to the card reader. At least one lever (34, 36, 38) has a card-engaging part (50, 52, 72) lying along the card path so the lever is deflected by the leading edge (46) of the card to release the gate device so it can open. Preferably, a plurality of card-engaging levers have card-engaging parts which must be deflected by the card leading edge to allow the gate to open, with at least one and preferably two of the levers deflected to the side of the card path by the leading edge of the card. The gate has a roller (100) that rolls along the top of the card when the gate is raised, to avoid scratching the card.

Abstract: A connector system is provided which enables a first connector (12), especially a rectangular one, to be quickly locked and unlocked from a second connector (14). A button (70) of a locking device (60), lies at a side (72) of the first connector housing (30), so access to it is not greatly limited by conductors (34) extending from the rear of the first connector. When the button is depressed, it operates a mechanism that allows retraction of lock balls (100) to unlock. Depression of the button causes a plunger (110) fixed to the button to move deeper into a slot (122) of a shaft (90) and to press against an inclined wall (112) at an end of the slot to move the shaft.

Abstract: An optical wireless communication method and apparatus that uses Manchester code via a connector connected with a personal computer. The Manchester data from the computer are converted to NRZ transmission data to be temporarily stored and read out. A frame of the read out data is appended with a head leader identifying a sender and end data at the head and end of the frame to be converted to the DMI transmission optical data. The optical data inserted between the head leader and END data are receivable being distinguished from the optical signal of the sender and optical noises. The DMI entitative data removed from the head leader and end data are converted to data of the Manchester code in the reverse course to the sender to be delivered as the Manchester data via a connector. As the optical data with the head leader and end data are distinguishable from the optical signal of the sender and optical noises, high sensitive optical receivers are available.

Abstract: The present invention relates to a hydraulic brake system with slip control, including a brake line which connects a braking pressure generator to several wheel brakes, at least one pressure modulation valve associated with each wheel brake to control the hydraulic connection to the wheel brake, a pump which supplies stored pressure fluid to the wheel brakes by way of a pressure fluid collecting means connected to a suction line, and sensors to determine the rotational speed of the wheels and an evaluating circuit to control the wheel slip. The pressure fluid connection between the braking pressure generator and the wheel brakes is established by a brake line, to which the pump is connected, wherein a multi-way valve and a monitoring device including a pressure sensor is inserted into the brake line to sense the pressure prevailing at the pressure modulation valve of the wheel brake.

Abstract: A brake system including electronic anti-lock control (ABS) and electronically controlled brake force distribution (EBV). This brake system has electrically operable hydraulic valves, of which the inlet valves are open in their inactive position. An electronic error monitoring device is provided which responds upon the occurrence of defects or malfunctions and disconnects the control at least in part. The brake system also has control electronics including secondary circuits which remain in function after the error monitoring device has responded, and by which the inlet valves leading to the rear-wheel brakes are actuated and which are provided such that the pressure in the rear-wheel brakes is maintained constant when a limit value of the braking pressure in the master cylinder is exceeded.

Abstract: An end fitting closes at least one end of a passageway having an external periphery and an internal periphery to be cast-in-place within a part. A fitting body has at least one elongated, blind-ended aperture formed therein. The aperture is defined at least in part by a first surface having a complimentary shape with respect to the external periphery of the cast-in-place passageway for receiving an end of the passageway disposed extending at least partially therein to close the passageway during casting of the part. The fitting body is composed of material essentially identical to material being used during casting of the part. The fitting body is positionable within a casting mold for forming the part to be cast, such that machining the cast part after casting opens the blind-end of the fitting to allow fluid flow through the passageway cast-in-place within the part.

Abstract: A circuit arrangement for a light signal receiver for receiving and recognizing light signals which are transmitted in a pulsed manner and to which ambient light of an undefinable intensity is parasitically superimposed. The circuit arrangement contains a two-pole light sensor and, for each terminal pole of the light sensor, a separate current-voltage converter for direct current is provided. The current-voltage converters have identical transmission behavior. Each terminal pole of the light sensor is connected to an identical signal input of a current-voltage converter. The current-voltage converters are connected as amplifying filters and are negative feedback-connected in terms of direct current and in a frequency-dependent manner so strongly via the input at which the terminal pole of the light sensor is located that the d.c. voltage at the terminal poles of the light sensor is constant independently from the intensity of the parasitic light.

Abstract: A lightweight night vision device that can be used by itself or can be selectively attached to either the objective lens assembly or ocular lens assembly of an existing optical device. The night vision device includes an image intensifier tube for amplifying low intensity light to produce a visible image. The image produced by the image intensifier tube is inverted. A prism assembly is positioned proximate to the image intensifier tube to reinvert the image in a space and cost efficient manner. The image intensifier tube, the power supply for the image intensifier tube and the reinverting prism are all contained within a house just large enough to accommodate these components. The housing has an objective port and an ocular port. Both ports are adapted to be joined to other optical components. As a result, a large variety of optical devices can be attached to either the object port or ocular port of the night vision device, thereby providing night vision capabilities to the optical device.

Abstract: A connector system that includes a pair of connectors (12, 14, FIG. 4) with optical fiber termini (32, 42), is of relatively low cost while assuring sufficiently precise alignment of corresponding termini to transmit a high proportion of light signals between them. A first of the connectors (12) includes an insert (30) with passages that hold termini comprising ball lenses (74) lying in front of optical fiber tips lying in ferrules (82). The plurality of termini are fixed in position and orientation in the insert, but the insert is moveable forwardly and rearwardly (F1, R1) and is biased forwardly by a spring device (160, 162). As a result, the mating faces (70, 72) of the inserts of the two connectors are resiliently pressed against one another in a connector wherein each termini is fixed in position in its insert.

Abstract: The invention relates to a digital signal processor with a RAM (random-access memory) having its output connected to a first input and, through a first temporary storage device to a second input of a multiplier, with an adder following the multiplier, and with a clock device for controlling data-word transfers. The speed of the processor is increased by connecting a second auxiliary storage device between the RAM and the first input of the multiplier and providing a first switching element via which the RAM and the second temporary storage device are connectable to the first input of the multiplier.

Abstract: A quick connector formed of a housing having an internal bore receiving one end of a male connector with a radially enlarged annular flange. A retainer carried on the housing has a cylindrical sleeve disposed in the stepped bore in the housing. Pivotal tabs extend from the sleeve to fingers extending angularly inward into the bore to engage the annular flange and prevent axial disengagement of the male connector from the housing. Release members extend from each tab and are adapted for pivotal, radially outward movement causing like radially outward movement of the fingers to disengage the fingers from the annular flange and to allow separation of the male connector from the housing. Lock surfaces carried on the housing engage the release members during radially inward movement of the release members caused by an axial load on the male connector to resist axial separation of the housing and male connectors.

Abstract: The present invention relates to a microprocessor arrangement for use in a vehicle control system which includes a plurality of microprocessor systems that are linked by bus systems and perform at least anti-lock control (ABS) and/or traction slip control (ASR) and at least one other high-computation control function, such as yaw torque control (GMR), and monitoring functions. The microprocessor arrangement includes three microprocessor systems to which the individual functions are allocated so that the first microprocessor system along with the second microprocessor system performs the ABS and ASR functions, including the monitoring of these functions, and that the third microprocessor system along with the second microprocessor system performs the other control function (GMR), including its monitoring.

Abstract: A wiper arm, especially for motor vehicles, with a wiper rod and a unit having a jacket and a hose to supply a washing nozzle with washing solution to wiper rod. The single piece, flexible material unit securely holds the hose to the wiper rod therein reducing installation cost. A wall of the unit is made divided, and opposing portions of wall are designed as a closure.

Abstract: An assembly, consisting of a motor and a pump, the motor being arranged in a motor housing and the pump in a pump housing. Both housings can be coupled to each other. The motor housing is provided with a second main bearing. The pump housing is equipped with a pump bearing. During normal operation, the forces acting on the pump eccentric are essentially supported by the main bearing and the pump bearing. The bearing forces are introduced into the pump housing. If the motor housing is not fastened to the pump housing, the rotor shaft is supported by the main bearing and, if necessary, an accessory bearing. Thus the motor can be tested without being connected to the pump housing.

Abstract: A wiper arm mounting system for mounting a wiper arm rigidly and removably to a drive shaft includes a mounting part and a threaded fastening element that is realized in the form of a fastening nut or fastening screw with the fastening element acting upon the drive shaft in the axial direction. The fastening element is held on the mounting part in captive fashion at least approximately in the mounting position, such that the wiper arm can be pulled off the drive shaft (8) by means of rotating the fastening element.

Abstract: The application describes an electric motor with a pressure compensation device. This device consists of a BTFE membrane that is arranged in a connecting channel between the interior of the electric motor and the external air.The membrane is arranged in the shield of the electric motor. Since the shield consists of plastic, the membrane can be sprayed on during the manufacture of the shield such that the membrane is inseparably connected to the shield. However, other fastening methods can be considered. One particularly suitable location for arranging the membrane is a circumferential collar that serves for centering the housing relative to the motor shaft. The connecting channel is realized in the form of a slot on the outer side of the collar. The application also describes additional methods for attaching the membrane.

Abstract: A quick connector housing element includes an elongated barb design for coupling the female housing to a tubing member. The elongated barb design includes a generally cylindrical sealing surface proximate a terminal end of the female housing. The sealing surface of the elongated barb enhances sealing properties between the female housing and the tubing and provides other advantages especially in connection with the use of multilayer tubing. Further, an O-ring is disposed about the sealing surface to provide a better seal.