Abstract: A storage and retrieval system includes a plurality of individual storage units stacked in multiple columns. Each storage unit includes wheels which engage a track for selective movement along the track. Vertical and horizontal actuators are used to move the storage units in sequence. Preferably, the actuators are power-driven, and control circuitry is used to coordinate the movement of the actuators.

Abstract: A storage and retrieval system includes a plurality of individual storage units stacked in multiple columns. Each storage unit includes wheels which engage a track for selective movement along the track. Vertical and horizontal actuators are used to move the storage units in sequence. Preferably, the actuators are power-driven, and control circuitry is used to coordinate the movement of the actuators.

Abstract: A connecting structure includes a first member including a hole which has a narrower width at an opening portion than a width at a bottom portion and a projecting portion projected toward the opening portion at the bottom portion of the hole, and a second member with a longer shape than a depth of the hole of the first member wherein the second member is inserted into the hole of the first member, the second member being plastically deformed by pushing the second member into the bottom portion of the first member with pressure.

Abstract: A precision non-symmetrical L-shape waveguide end-launching probe for launching microwave signals in both vertical and horizontal polarizations is disclosed. The L-shape waveguide probe is in a form of thin plate, has a first arm and a second arm, and is precisely fabricated and attached to one end of the central metal pin of a feedthrough. The feedthrough is installed to an aperture formed in a major wall of the universal conductive housing to achieve hermetic sealing. The L-shape waveguide probe is aligned by means of a specially designed alignment tool so that long axis of the second arm is always perpendicular to the broad walls of the output waveguide, which is mounted to the universal housing with the broad walls of the output waveguide either horizontally or vertically. Hence, in this invention, an end-launching arrangement using the L-shape probes that could yield a flexible waveguide interface either in horizontal polarization or vertical polarization is provided.

Abstract: A connecting structure includes a first member including a hole which has narrower width at an opening portion than width at a bottom portion and a projecting portion projected toward the opening portion at the bottom portion of the hole, and a second member with a longer shape than the depth of the hole of the first member wherein the second member is inserted into the hole of the first member, the second member is plastically deformed by pushing the second member into the bottom portion of the first member with pressure.

Abstract: A precision non-symmetrical L-shape waveguide end-launching probe for launching microwave signals in both vertical and horizontal polarizations is disclosed. The L-shape waveguide probe is in a form of thin plate, has a first arm and a second arm, and is precisely fabricated and attached to one end of the central metal pin of a feedthrough. The feedthrough is installed to an aperture formed in a major wall of the universal conductive housing to achieve hermetic sealing. The L-shape waveguide probe is aligned by means of a specially designed alignment tool so that long axis of the second arm is always perpendicular to the broad walls of the output waveguide, which is mounted to the universal housing with the broad walls of the output waveguide either horizontally or vertically. Hence, in this invention, an end-launching arrangement using the L-shape probes that could yield a flexible waveguide interface either in horizontal polarization or vertical polarization is provided.

Abstract: A conveyor trolley with a pair of wheels rolling on a flat upper face of an upper end rail portion of a guide rail, one wheel acting as a drive wheel and attached to an output shaft of a speed-reducing unit mounted on a trolley body movably supported on the guide rail, and a motor for driving the output shaft via a speed-reducing mechanism in the speed-reducing unit, the trolley having a collector unit for supplying power to and communicating control signals with the motor, guide rollers for laterally binding and positioning the upper rail portion and a lower rail portion of the guide rail, a wheel securing unit disposed between an annular concave portion defined in a boss of the drive wheel and the output shaft, the wheel securing unit including an outer ring, an inner ring having a wedge-shaped cross section to be engaged into the outer ring and a tightening member for securing the wheels to the output shaft by reducing an inner diameter of the inner ring and by enlarging an outer diameter of the outer ring

Abstract: A waveguide switch having four RF ports in coplanar relationship and incorporating four waveguide transmission lines in a single rotating mechanism on two levels, the rotating mechanism being driven by an electromagnetic stopper motor or the like to efficiently function as a multiple redundant waveguide switch.

Abstract: A resonant cavity such as a diplexer filter and a coaxial resonator, for example, wherein its interior resonant cavity structure is packed with a powdered polytetrafluoroethylene material to prevent arcing within the resonant cavity structure due to the multipacting phenomenon.