Abstract: A retainer particularly suitable for use in a crossed-roller rolling contact bearing assembly is provided. The retainer is comprised of a thin plate which is provided with at least one hole for locating therein a roller. A pair of top and bottom projections are formed in the hole for providing main contact surfaces for holding the roller in position by surface contact. Additionally, the wall which defines the hole is provided with a double-tapered section at least partly, and this double-tapered wall section provides auxiliary contact surfaces for holding the roller in position by surface contact.

Abstract: A TTL inverting output circuit (50) which uses the collector (65) of a parallel phase splitter transistor (Q11) where the voltage changes in phase with the circuit output signal Io to control an active circuit (70) which diverts charge from the base (23) of the output pull-down transistor (Q3).

Abstract: A water bicycle comprising two relatively parallel, elongated floating bodies and a frame supported by said floating bodies provided with a seat whereby each of the floating bodies is provided with a frame part supported by the associated floating body and a spacing member is releasably arranged between the two frame parts for maintaining the frame parts at a given distance from the other and the floating bodies connected therewith, the seat being supported by an auxiliary frame provided with two guides cooperating with guides forming part of the frame parts on the floating bodies so that in the longitudinal direction of the floating bodies the guide parts are slidable over or in one another, while bolt are provided for fixing the guides in a desired position relative to one another.

Abstract: Bidirectional amplifier employs a single buffer amplifier (64). The bidirectional amplifier is programmed by applying a control signal (Q) and its complementary signal (Q), which establishes the state of four pass transistors (P'.sub.1, P'.sub.2, P'.sub.3, P'.sub.4) or four CMOS transmission gates (T.sub.1, T.sub.2, T.sub.3, T.sub.4). For a first selection of the control signal, the bidirectional amplifier receives an input signal on a first lead (A') and produces an amplified signal on a second lead (B'). For a second selection of the control signal, the amplifier receives an input signal on the second lead (B') and produces an amplified output signal on the first lead (A').

Abstract: A linear motion roller bearing for allowing an object such as a slider to move along a straight line defined, for example, by a track rail includes an endless path and a plurality of rollers having substantially the same size in diameter and height, which are arranged in contact in the endless path with their axes of rotation directed as rotated over 90.degree. alternately with respect to the longitudinal axis of the endless path. The endless path includes a pair of straight portions and a pair of semicircularly curved portions each of which connects the corresponding ends of the pair of straight portions. Each of the curved portions is so structured that the maximum number of rollers which can be present therein ranges between (even number +0.1) and (even number +0.5) if the pair of straight portions are not provided on the same horizontal plane and between (integer +0.1) and (integer +0.5) if the pair of straight portions are provided on the same horizontal plane or a plane close thereto.

Abstract: A crossed roller type linear motion rolling contact bearing assembly includes a straight rail and a slider mounted on the rail slidably therealong. An endless circulating path is defined in the slider, in which a plurality of rollers are provided. Since the path includes a load section where the rollers provide a rolling contact between the slider and the rail, the slider may slidably move along the rail. Also provided in the endless path are a plurality of roller separators each of which is interposed between two adjacent rollers thereby keeping these two rollers as spaced apart from each other at all times. The separator has a pair of roller-receiving recesses for holding therein the associated rollers in a crossed arrangement, and each of the roller-receiving recesses is so shaped that the roller received therein can change its orientation over a predetermined range so as to maintain a predetermined positional relationship between the two rollers received in the recesses on both sides of the separator.

Abstract: Device for cooling a granular product provided with a bunker with an intake for the material to be cooled at the top side of said bunker and a grate construction located near the bottom side of said bunker, with a fixed grate and a movable grate, movable to and fro in action, whereby the movable grate has been arranged under the fixed grate, while under the movable grate a third grate has been provided, which during operation is displaceable and adjustable in several positions.

Abstract: A method and apparatus for determining or adjusting a projecting direction of a light beam emitted from an automobile headlight is provided. In a first aspect of the present invention, the peripheral region of a light beam is used in determining its projecting direction. In particular, a region definable in a light pattern of the projected beam having a proportionality relation between log S and I, where S indicates the value of an area having light intensity I or above, is determined and its outer contour or any predetermined point in the contour is used in determining the projecting direction. In a second aspect, apparatus for determining a projecting direction of a light beam emitted from an automobile headlight includes an indicator which automatically indicates a predetermined position of a light pattern of the light beam projected.

Abstract: A seat belt apparatus for use in a vehicle includes a webbing extending from a retractor upward along a center pillar of the vehicle and after passing through a slot of a through-anchor mounted at the top of the center pillar extends downward to have its forward end connected to an arm pivotally mounted on the vehicle. The seat belt apparatus also includes a manually operable member, such as handle, pedal or knob, which can be operated by the hand or foot of a passenger seated in position inside the vehicle and the manually operable member is operatively connected to the webbing or arm. The manually operable member can be operated between a first and second position and when it is moved from the first to the second position, the webbing is moved from its retracted position to an advanced position where the passenger can grab the webbing with east without taking any uncomfortable posture.

Abstract: A laser beam processing robot having a multi-joint arm assembly includes a main body, which is provided to be movable along a predetermined straight line, and a multi-joint arm assembly mounted on the main body. The assembly includes a first arm which is rotatably coupled to its base portion through a first joint, which, in turn, is fixedly mounted on the main body. The assembly also includes an optical system which defines an optical path for a laser beam. The first joint is provided with a first through-hole which extends in parallel with the predetermined straight line and through which a laser beam supplied from a source is passed to be guided into the optical path of the assembly. Moreover, optical elements of the optical system are arranged on both sides of the assembly so that repair and maintenance of the optical system is facilitated.

Abstract: A fluidized bed heater for uniformly raising the surface temperature of semiconductor wafers. The heater includes a mantle having at least one planar surface for supporting wafers, a bed of particles adjacent the mantle which is fluidized by passing a gas through the particle bed, and a bed heater which heats the bed particles to a uniform temperature so that wafers supported on the planar surface are heated to a uniform temperature. A reactor is also described which contains a reactor chamber for processing semiconductor wafers and a fluidized bed heater for uniformly heating semiconductor wafers in the reactor chamber.

Abstract: A linear motion rolling contact bearing assembly includes a trough-shaped bed, a trough-shaped table which straddles the bed, a plurality of balls interposed between the table and the bed for providing a relative motion between the table and the bed along the longitudinal direction of the assembly, and a retainer for retaining the balls in position. The retainer includes an elongated plate provided with a plurality of holding holes for holding the balls in position and at least one side projection which projects sideways from the plate so as to maintain the retainer in its intended position. Preferably, the top and bottom side projections are provided on both sides of the plate so that the retainer has an I-shaped cross section. The retainer is also preferably provided with one or more tabs provided around each of the holding holes so as to securely hold the balls in position. The side projections may be provided also in the form of a plurality of dots.

Abstract: A ball spline bearing assembly includes an outer, hollow cylinder, a guide shaft which extends through the cylinder and a plurality of balls interposed between the splined, opposite surfaces of the cylinder and the shaft. The cylinder is provided with an end member formed with a required number of connection passages at each end, so that two adjacent guide passages defined between the splined, opposite surfaces of the cylinder and the shaft are connected by the connection passage at each end thereby defining an endless path along which the balls can roll indefinitely. A tubular-shaped ball retainer is interposed between the shaft and the cylinder and is formed with a plurality of elongated windows. The ball retainer serves to keep the balls in rolling contact with both the cylinder and the shaft in a set of alternate straight guide passages; however in the other set of alternate straight guide passages they are in rolling contact with either the cylinder or the shaft.

Abstract: Means are provided for replacing a defective row (or column) of memory in a fuse-array PROM which comprises disabling the defective row and programming a redundant row to respond to the address of the defective row. Means are also provided for reducing the swing between high and low address voltages.The redundant row is connected via an AND gate through fuses to all ADDRESS and ADDRESS lines of the address buffer, so that the redundant row is always off until programmed. If a defective row is found, all memory cells in the defective row are disabled and the redundant row is programmed by selectively blowing fuses leading to the ADDRESS and ADDRESS lines thus causing the redundant row to respond to the address of the defective row.

Abstract: A system for aligning a semiconductor wafer with a mask bearing a pattern to be formed on the wafer, in which both the wafer and the mask bear an alignment mark, and in which light used for alignment is filtered to transmit only in a selected bandwidth, uses a reflector system to gather light reflected from edges of the alignment mark on the wafer. In order to minimize the effect of erroneous alignment signals from standing waves generated when the alignment signal is reflected from a wafer coated with a layer of photoresist, a second filter is placed in the path of light after it has reflected from the target. This second filter transmits a range of the reflected light which does not produce standing waves.

Abstract: A programmable read only memory includes a transistor having an N type source, an N type drain, and a polysilicon floating gate extending over the channel between the source and drain. The floating gate also extends over and is capacitively coupled to an N well. By applying an electric potential to the N well, the potential on the floating gate above the channel is altered.Within the N well is a P region, which mitigates the decrease in capacitive coupling between the N well and the floating gate caused by carrier depletion.

Abstract: A method is disclosed for reducing the information needed to communicate graphical information of high quality from one point to another in a system which provides codes describing graphical characters to represent portions of an image. Like characters of a standard size which frequently appear in adjacent strings, for example to represent the background of a graphical picture, are replaced with larger characters of carefully selected size having the repetitive pattern of the standard character. Sending larger characters greatly reduces the time and information needed to reproduce a graphical image.

Abstract: A linear motion rolling-contact bearing assembly includes a trough-shaped rail extending straight over a length and provided with outer guide grooves, a slider member provided with inner guide grooves each opposite to the corresponding one of the outer guide grooves and including an endless circulating path comprised of a load path section and non-load path section, a plurality of balls arranged in the endless circulating path which are brought into rolling contact with the corresponding pair of the inner and outer guide grooves at the load path section, and a retainer plate for retaining the balls in the endless circulating path while rolling along its load section. In accordance with the present invention, the slider member, received in the rail, includes a saddle-shaped table and a pair of upper and lower wall sections, which define therein at least the non-load path section of the endless circulating path and which are fixedly attached to the table by a fixing means, such as rivets.