Abstract: Disclosed are basic circuits operable in a current mode in multivalued logic circuit systems, analog circuit systems and the like. Examples of the basic circuits are a successor, quantizer, adder, subtractor, divider, multiplier, decoder, literal circuit, equivalence circuit, bilateral T-gate, complement literal circuit and h operator circuit. These basic circuits are realized by using floating threshold switching circuits, floating window switching circuits, threshold SPDT switching circuits, and the like.

Abstract: A solid state relay comprises a radiator, a control circuit block and a power circuit cartridge. The radiator has a base portion and a plurality of fins extending from the base portion. The control circuit block has a pair of input terminals and a pair of load terminals and is attached to a front surface of the base portion of the radiator. The power circuit cartridge includes therein a power semiconductor element which is turned on or off by a control circuit in the control circuit block, an absorber which is connected between the pair of load terminals, and a heat radiating plate to radiate heat of the power semiconductor element. The power circuit cartridge is detachably attached to the control circuit block so as to be electrically connected thereto. A through space is formed in the control circuit block so as to pierce from a front surface of the control circuit block to the front surface of the base portion of the radiator. The power circuit cartridge is inserted into the through space.

Abstract: A novel electro-mechanical switch device is disclosed which is suitable for use in a factory production line to detect and control the flow of workpieces or articles of manufacture along the line. The switch device includes a pair of switches (101, 102) operative in response to the workpieces passing thereby along the production line, a switch circuit (13) electrically connected to the switches (101, 102), and a moisture detector (15). The pair of switches are so designed that the operation of one switch is delayed with respect to the other. The switch circuit (13) functions in response to the operation of the switches and the moisture detector (15) to provide a warning signal when one of the switches fails to operate within a predetermined delay time with respect to the other switch, as well as when the moisture detector senses a presence of moisture.

Abstract: An electromagnetic relay where a movable stand is retained by a pair of opposing leaf springs, the movable stand is operated in the opposing direction of the leaf spring in accordance with the energization, deenergization of the electromagnet, the movable terminal is disengageably brought into contact against the fixing terminal supported through the support stand, and the movable stand is provided with a through hole in the vertical direction to be press-fitted, mounted in it, a groove in the vertical direction in the contact portion of the movable stand and the leaf spring, and a passage for guiding into the groove portion the bonding agent to be put into the through hole.

Abstract: An air connector for use in association with a sphygmomanometer body, comprising an air socket having an air plug acceptor and a pressure measuring air line and an exhaust air line each communicating with the air plug acceptor, an air supply plug removably connected to the air plug acceptor of air socket and provided with an air tube joint at one end thereof and an insert cylinder at the other end, and a control means which is removably connected to the insert cylinder of air supply plug and, upon installation, brings the air supply line of air supply plug into communication with the pressure measuring air line and exhaust air line for blood pressure determination and, upon removal, brings the air supply line of air supply plug selectively into communication with the pressure measuring air line for pressure assay.

Abstract: This invention provides a pushbutton switch which produces a click sound, the loudness of which is easily variable. In response to the vertical movement of operating cams of a pushbutton, a plate spring moves up and down. The moment when the edge of the operating cams trips over click spring portions of the plate spring, a force is applied to the plate spring so that the plate spring hits the inner top wall or bottom wall of a housing. In this manner, the pushbutton switch provides both a snap feeling and a click sound.

Abstract: A trigger switch includes a trigger member pivotally attached to a grip member via a pivot pin and connected to an electric switch main body. By pressing and pivotally moving the trigger member, the switch main body can be actuated. To avoid inadvertent actuation of the switch main body, a lateral lock pin is passed through a slot provided in a metallic lock plate securely attached to the trigger member and a hole provided in the grip member so as to secure the trigger member immobile by engaging a large diameter portion of the lock pin in an expanded part of the slot of the metallic lock plate and release the trigger member by moving the large diameter portion out of the slot. To increase the margin of an insulation distance, the metallic lock plate is placed a certain distance away from the pivot pin.

Abstract: A card to be used is first discriminated as to whether the card is a credit card or a debit card on the basis of data recorded on the card. In the case of a credit card, a necessary credit card processing including card authorization is effected. In the case of a debit card, a necessary debit card processing including immediate payment processing of an amount of money for transaction is efffected.

Abstract: A semiconductor laser having an internal current restriction includes a (100) face-oriented p-type GaAs substrate treated to have a groove or difference in level having an (n11) A face (n=1-5) as an inclined surface. An AlGaAs:Si layer, an AlGaAs:Be cladding layer, an AlGaAs active layer, and an AlGaAs:Sn cladding layer are grown on the substrate in the order mentioned. Since the Si acts as an n-type material on the (100) face and as a p-type material on the (n11) face, the AlGaAs:Si layer becomes a p-type layer solely in the groove, and it is in this portion that a current path is formed. The laser can be fabricated by molecular-beam epitaxy applied in a single step.

Abstract: A shutter is provided near an IC card inserting port of an IC card reader/writer. Contact members adapted to be come into contact with the contacts of an IC card are provided for a member constructing the shutter. When the shutter is closed, the contact members are located at positions such that they can come into contact with the contacts of the IC card.

Abstract: A contactless switch comprising a moveable body assembly including a plunger and a lens carrier received in a casing axially slidable manner between a light emitting element and a light receiving element which are also disposed along and on the axial line of the casing. Thus, the radial dimension of the switch can be reduced, and a compact design is made possible. Additionally, the actuating stroke of the moveable body assembly can be made large without increasing the dimensions of the switch. In particular, since a switch output can be produced from a signal processing circuit when the amount of the light received by the light receiving element has reached a certain predetermined level, the point of activation of the switch can be accurately defined by adjusting a reference level for the level of the light received by the light receiving element, and this adjustment can be easily carried out.

Abstract: The projection lights including the red and infrared lights are projected from a light projecting device (3) onto a reflex reflector (7) arranged at a position which is away from the light projecting device by a predetermined distance. The reflex reflector reflects the red light and absorbs the infrared light. The reflected lights from the reflex reflector or an object to be detected are detected by a photo sensitive device (4). The photo sensitive device individually detects the red light and infrared light and outputs two light detection signals. The sum of the light detection signals is compared with the first threshold value. The difference between the light detection signals is compared with the second threshold value. An object detection signal is formed on the basis of the logical arithmetic operation of the results of the comparison.

Abstract: A switch device is disclosed for detecting an object which comprises a transducer for emitting and receiving ultrasonic signals to and from an object, a transmitter for driving the transducer, a receiver for receiving a signal from the transducer, a gate for detecting a short-distant object, a gate for detecting a long-distant object, and a circuit for setting the timings of the gates in accordance with the detecting ranges of the object.

Abstract: A reflection type photoelectric switch including a light emitting member for emitting a substantially single light beam having first and second different wavelengths, a reflector for reflecting the emitted light beam at different reflection rates with respect to the first and second and wavelengths, a light receiving member for sensing rays at the first and second wavelengths, and means for analyzing outputs generated from the light receiving member receiving the reflected light beam at the first and second wavelengths to generate an output representing the existence of an object to be detected by the photoelectric switch.

Abstract: An interface device which is provided with a DC-DC converter and a power output terminal so that the internal circuit of the interface device and the external equipment may share a common power source in spite of their different power supply requirements, and the wiring connection between the interface device and the external equipment may be simplified. In particular, if the interface device is configured as a terminal base and coupled to the controller via serial transmission line, a significant simplification of the wiring between different parts of the controller system can be accomplished. If the power terminals include positive and negative power output terminals arranged in an alternating fashion, and the power terminals and the signal lead terminals are arranged in two different rows, preferably, in staggered relationship, the leads from different pieces of external equipment may be clustered close to each other, and the external wiring work is extremely simplified.

Abstract: A control component accessible from its front comprising a main body housing a control circuitry, connection terminal member fixed on the main body which is operable from a front side of the component, and slide member slidably mounted on a front wall of the main body so as to in an original position cover the connection terminal member and in a slide position expose the same to the front side of the component.

Abstract: An electromagnetic relay having an electromagnetic block with a roughly U-shaped iron core formed with a pair of bent opposing magnetic poles at both the ends thereof and with a coil wound therearound via a spool; and an armature block with both ends thereof opposing the magnetic poles and with the middle portion thereof pivotally supported. A permanent magnet is disposed between the two opposing magnet poles of the iron core so as to oppose said armature. The permanent magnet is supported by a support member formed integral with the spool of the electromagnetic block. The armature is pivotally supported by the electromagnetic block.

Abstract: The disclosed electrode device for high frequency thermotherapy apparatus comprises a base member; a cavity-inserted cylindrical body removably fixed to the base member and inserted into a cavity of a living body; a separator fixed to the base member and arranged in the cylindrical body, for partitioning a space within the cylindrical body into two; an electrode arranged at an end of the separator; and in particular a circulation passage for a cooling liquid being formed extending from a going path, through an end space, to a return path within the cylindrical body. Therefore, the surface of the living body in contact with the cylindrical body can be efficiently cooled by circulating a cooling liquid therethrough to protect the surface of the living body from being heated excessively. Further, the cavity-inserted cylindrical body can be replaced or removed for washing to realize a sanitary medical treatment.

Abstract: In this control circuit for a DC motor, there are provided: a device which generates a triangular voltage wave; a device which generates a variable reference voltage; a device which compares the voltage from the triangular voltage wave generator and the voltage from the variable reference voltage generator, and produces a speed variation control output according to the result of this comparison; and a device which controls the supply of electric current to the DC motor according to the thus produced speed variation control output. Optionally, control power source lines from the device for controlling the supply of electric current to the DC motor are connected to the two ends of an armature of the DC motor. By this simple construction the number of parts of the control circuit is minimized, and the construction is made compact, light, and cheap.

Abstract: A novel electro-mechanical switch device is disclosed which is suitable for use in a factory production line to detect and control the flow of workpieces or articles of manufacture along the line. The switch device includes a pair of switches (101, 102) operative in response to the workpieces passing thereby along the production line, a switch circuit (13) electrically connected to the switches (101, 102), and a moisture detector (15). The pair of switches are so designed that the operation of one switch is delayed with respect to the other. The switch circuit (13) functions in response to the operation of the switches and the moisture detector (15) to provide a warning signal when one of the switches fails to operate within a predetermined delay time with respect to the other switch, as well as when the moisture detector senses a presence of moisture.