Abstract: A foldable electronic device may have a foldable housing. The foldable housing may be configured to bend about a bend axis. First and second portions of the housing that rotate relative to each other may be coupled by a hinge that is aligned with the bend axis. A foldable display may be coupled to the foldable housing and may be configured to bend along the bend axis as the foldable housing is folded. The display may have an array of pixels supported by a metal layer. The pixels may be interposed between a display cover layer and the metal layer. The foldable housing may have a support layer. To help support the display for bending about the bend axis while preventing damage to the display when the display is contacted by an external object, a spring layer may be interposed between the metal layer and the support layer.

Abstract: A tray and rack assembly for beverage containers. The assembly includes a rack subassembly and a tray subassembly slidingly engaging said rack member. The tray subassembly includes a pair of substantially parallel tray sidewalls, a tray floor extending between the lower edges of the tray sidewalls, at least one beverage container stop member extending at least partially between the outer ends of the tray sidewalls, and a tray pull member extending from the outer end of the tray. The rack subassembly includes a pair of substantially parallel rack sidewalls, and a rack floor extending between the lower edges of the rack sidewalls. Sliding attachment means are adapted to hold the tray subassembly in sliding contact with the rack subassembly and permit the tray subassembly to be extended from and inserted into the rack subassembly.

Abstract: A dry composition capable of generating alcoholic beer in the presence of water. The composition includes agglomerates of an edible carbonation source and a powdered source of alcoholic beer. The edible carbonation source includes a water soluble carbonate and an acid. The source of alcoholic beer is a spray dried solution of beer and a water soluble material such as gelatin or a modified starch. The composition may be used as a free flowing powder or the powder may be compressed into tablet form.

Abstract: A small aperture satellite ground station communications antenna is disclosed. A rectangular section of a curved parabolic reflector is provided having first and second rectangular dimensions. An azimuth elevation pedestal for positioning the reflector is provided such that the antenna bore sight is aligned with a geostationary satellite. The reflector is supported by the pedestal to permit rotation of the reflector about a third polarization axis for the antenna. The rotation along the polarization axis permits the reflector to be optimally positioned such that its long dimension is aligned with an orbital arc of a geostationary satellite. Angle scales are provided on all three axes to facilitate repositioning to other satellites based on an initial satellite location, which serves as a reference for the scales.

Abstract: An antenna system including a phasing circuit for producing balanced, phase isplaced, signals for connection to an antenna. The antenna comprises, for each set of balanced phase signals, a pair of antenna elements disposed serially along a helical path. A transmission line, connected to each of the phasing circuit terminals, drives each antenna element pair at a center location by being connected to the proximate ends of each pair. The antenna has a omnidirectional radiation pattern, a wide band width, a good front-to-back ratio and can be constructed in a compact form.

Abstract: An insulating, tinted glass window assembly of components that can be efficiently assembled and disassembled for repair or cleaning provides a three-layer glass window assembly having a tinted-glass layer sandwiched between two clear, transparent glass panes. The tinted-glass layer is formed by a lattice inner frame holding a plurality of preformed tinted glass sized to fit in the lattice frame. The inner frame also holds the clear, transparent glass panes resting on the inner frame in a spaced-apart relation to the internal tinted glass layer. Thus, two insulating layers of air is presented within each of which air movement is restricted by the lattice of the inner frame, thereby further improving insulation properties of the assembly.

Abstract: An antenna feed having a common circular waveguide with a longitudinally extending rectangular slot in a wall thereof and defining a receive port. An iris is rotatably connected adjacent the receive port permitting selective relative polarization of the transmit and receive signals. The relative polarization may be readily selected by a technician in the field without the need for changing antenna feeds when, for example, changing from co-polarization to cross-polarization. The iris includes a rectangular opening therein permitting the passage therethrough of the transmit signal while blocking the passage of a signal of the same frequency as the receive signal. The iris is positioned adjacent the receive port to enhance coupling of the receive signal into the receive port. The antenna feed provides high isolation between transmit and receive ports without the need for a filter on the transmit port.

Abstract: An antenna feed having a common circular waveguide with a longitudinally extending rectangular slot in a wall thereof and defining a receive port. An iris is rotatably connected adjacent the receive port permitting selective relative polarization of the transmit and receive signals. The relative polarization may be readily selected by a technician in the field without the need for changing antenna feeds when, for example, changing from co-polarization to cross-polarization. The iris includes a rectangular opening therein permitting the passage therethrough of the transmit signal while blocking the passage of a signal of the same frequency as the receive signal. The iris is positioned adjacent the receive port to enhance coupling of the receive signal into the receive port. The antenna feed provides high isolation between transmit and receive ports without the need for a filter on the transmit port.

Abstract: An aquarium having an aquaculture pot and a water fountain is disclosed in which water is recirculated through filtering material in the pot. A tank cover is formed with a central opening in which the pot is supported. A pipe rises from the water through an opening in the bottom of the pot. The fountain is connected to the upper end of the pipe such that water pumped from the tanks through the pipe sprays from the fountain into the filtering material in the pot. The water is purified by the filter material and returns to the tank through drain openings in the pot bottom.

Abstract: The present invention relates to 1,4-dihydropyridine of the formula(I) ##STR1## wherein R.sup.1 represents a phenyl group which may be substituted by one or two substituents selected from halogeno, nitro, trifluoromethyl and difluoromethoxy group, or 2,1,3-benzoxadiazole-4-yl group, R.sup.2 represents a lower alkyl or phenyl group, R.sup.3 represents a lower alkyl group and Y represents an oxygen or sulfur atom.The compounds of the formula(I) can be employed for treatment or prevention of cardiovascular diseases.

Abstract: A sensor unit for traffic control of an automatic guided vehicle. Traffic sensor means generates a signal of a specified frequency. Control means controls the direction of the automatic guided vehicle as a function of signal generated by the traffic sensor means. Control sensor means coupled with the traffic sensor means and the direction controlling means sends a stop signal to one or more of the vehicles to resolve conflicts at intersections and avoid collisions and deadlocking.

Abstract: Optical switching device for sensing an object. The optical switching device includes an oscillator, an light-emitting circuit for emitting a light pulse train corresponding to a pulse train from the oscillator to the object, a light-receiving circuit for converting the light pulse train depending on the presence of the object into an electrical detection pulse train, a synchronous circuit for synchronizing the frequency of the detection pulse train with an adjustable frequency to provide a certain logic signal in synchronism, and a switching circuit for generating object detection logic signals in response to the logic signal from the synchronous circuit.

Abstract: A bias generator produces a voltage (V.sub.R) which is applied to the control electrode of a gating transistor via whose conduction path the contents of a memory cell are read-out. V.sub.R is such that, during read-out, the maximum amplitude of the gate-to-source potential (V.sub.GS) applied to the gating transistor, in a direction to turn it on, is approximately equal to a fraction of the memory cell supply voltage plus an offset voltage comparable to the threshold voltage (V.sub.T) of the gating transistor. The bias generator includes a voltage divider connected across the same supply voltage source as the memory cell. A portion of the supply voltage (K V.sub.DD) generated at a node of the divider is applied to an offset voltage generating circuit which includes as least one device of the same type as the gating transistor and which produces V.sub.R at its output. V.sub.R is approximately equal to K V.sub.DD offset by a voltage comparable to the V.sub.T of the gating transistor. Applying V.sub.