Abstract: Disclosed herein is an electric terminal device as featured by providing at one side of a washer for supporting a terminal screw a washer guide section which is bent toward a terminal fixture as mated with the terminal screw and extends in a direction parallel with the axis of such terminal screw while providing a recovery spring between a housing and a midway portion in back of the washer guide section (at the opposite side to the terminal screw), wherein where no lead wires are implemented therein, it is possible to let the device be in the recovered state due to presence of the recovery-spring force thus enabling a lead wire to be directly inserted into a gap above the terminal fixture; conversely, where the wire is to be taken out of it, unlocking the terminal screw may permit automatic recovery at the recovered state due to application of the recovery spring force.

Abstract: A method and apparatus for dissolving and mixing a gas and a liquid wherein an injection portion for injecting a liquid at a flow rate in the range from approximately 5 m/s to approximately 15 m/s in a horizontal direction is provided at an upper part of a mixing container filled with a gas; a restrictor for maintaining a pressurized state in the mixing container is provided downstream of the mixing container; and a liquid is injected into the mixing container from the injection portion to cause a reaction or dissolution between the gas in the mixing container and the injected liquid in the pressurized state and to cause a liquid including the gas dissolved therein to flow from a lower part of the mixing container. The gas is supplied upstream of the injection.

Abstract: A display unit with touch panel includes a press detection switch for detecting a press on a touch panel at a pressure exceeding a predetermined level so as to output a press detection signal, a driving-signal generating circuit responding to the press detection signal to generate a driving signal, a driving portion actuated by the driving signal to drive the touch panel into displacement thereby providing an operator with a tactile feedback, and an AND circuit for outputting an AND signal upon receipt of both of a coincidence detection signal from a coincidence detecting circuit and the press detection signal from the press detecting switch, and a gate circuit for inhibiting a passage of the operated-position signal from the operated-position detecting circuit when the AND signal from the AND circuit is not supplied and permitting the passage of the operated-position signal when the AND signal from the AND circuit is supplied.

Abstract: A safety switch that is constructed to change over the connection contact when an actuator enters the operating portion of the switch proper and an operating rod at the switch portion moves in response to this. The safety switch includes a driving cam and restricting plates arranged on either side of the driving cam for restricting movement of the driving cam when an object other than the actuator is inserted into the operating portion.

Abstract: A semiconductor light-emitting device which emits first light of a wavelength absorbed by a substance containing an OH group is sent toward a detection object. A semiconductor light-emitting device emits second visible light toward the detection object. A photoreceptor receives light from the detection object and acquires first and second received light-quantities derived from the respective ones of the first and second light. A processing system corrects the first photoreceiving quantity on the basis of the second photoreceiving quantity. The processing system determines the color of the detection object by the second photoreceiving quantity, and corrects the first photoreceiving quantity on the basis of this determination result. Further, it compares the corrected first photoreceiving quantity with a prescribed threshold value, detects whether or not water, which is the subject containing the OH group, is contained in the detection object, and outputs the same as an output signal.

Abstract: A safety switch in which one piece of cam plate 1 (51) which rotates and moves the operating rod 6 (7) of the contact of the switch portion as the actuator 102 enters the operating portion 111 (511), and the lock plates 2, 3 (lock pieces 52, 53) are arranged on the side of the cam plate 1 (51) to form a lock mechanism for restricting the rotation of the cam plate 1 (51) so that the lock mechanism of the cam plate 1 (51) by lock plates 2, 3 (lock pieces 52, 53) is released and the cam plate 1 (51) is rotated only when the actuator 102 enters, thereby preventing the operating portion from being operated by any tool other than the special-purpose actuator. In one of the specific embodiments, the cam plate 1 is formed with recesses 1a, 1b and lock grooves 1c, 1d, and the lock plates 2, 3 are respectively formed with inclined surfaces 2a, 3a and engaging pawls 2c, 3c for fitting into the lock grooves 1c, 1d.

Abstract: A touch panel (4) and an operation part (30) are provided on display means (2). A permanent magnet (52) is mounted on a push button (32), and a magnetic metal plate (58) is mounted on a support frame (36). When the push button (32) starts to be pushed down toward the touch panel (4), the push button (32) moves toward the touch panel (4) against magnetic attractive force of the permanent magnet (52) and the magnetic metal plate (58), and an operation forward end part (46) operates a touch switch (4a). Stroke feeling results from this movement. Further, the aforementioned magnetic attractive force abruptly reduces in an initial period of this movement, and an operator of the push button (32) can attain click feeling. Since the stroke feeling and the click feeling are caused in the operation of the push button (32), operability is improved while making the best use of such an advantage that the touch panel (4) is of a thin type.

Abstract: An apparatus for mixing a gas with a liquid and for dissolving the gas in the liquid comprises a throttled section (12) formed in a fluid flow passage, a gas inlet (18) provided slightly downstream of the throttled section (12), a widened section (16) which is continuous with the throttled section (12), a mixing section (20) provided downstream of the widened section (16), for mixing the gas introduced from the gas inlet (18) with the liquid in the fluid flow passage, and a nozzle section (24) provided on the outlet of the mixing section (20) for outputting the liquid with the gas dissolved therein. The gas is dissolved in the liquid in the mixing section by pressurizing the liquid in the mixing section. The apparatus is useful for dissolving ozone into a liquid, for dispersing bubbles in a liquid and for floating small particles in a liquid.

Abstract: The safety switch unit controls the source of power for machinery in accordance with the opening and closing of a room door. The safety switch includes an actuator (2) secured to a door, a cam shaft extending transversely of a direction in which the actuator (2) advances into the switch unit (1), the actuator (2) having a stepped top end in correspondence to which cam plates (13), (14a) and (14b) are provided within the switch unit (1) each capable of independently rotating, these cam plates having start sides (17) and (22) and a single cam follower pin (29) passed therethrough, thus protecting the switch unit (1) against mischievous or malicious operation.

Abstract: A circuit of a detection switch for generating an output signal for driving a load device in accordance with the detection result by a detector is composed with a reduced number of components externally attached to an IC substrate which mounts integrally main circuit units such as a power source circuit unit, a detection circuit unit and an output circuit unit. The output circuit unit comprises a comparator which compares a judgment signal from the detection circuit unit with a reference signal when the load device is driven by DC power, or compares the voltage of an external DC power source with a predetermined voltage when the device driven by AC power, and an output driver which generates a driving signal for the load device in response to the output signal from the comparator. The detection circuit unit produces the judgment signal only when either the output circuit unit or the power source circuit unit is active.

Abstract: A data transmission system with double lines comprises a plurality of sensor terminals connected to the current line in cascade, and a controller connected to a current input side of the first sensor terminal. A switch device in each sensor terminal connects the current line to a sensor circuit for a specified time after a current begins to flow to the current input side of the sensor terminal, and connects the current line to the current output side of the sensor terminal after an elapse of the specified time. After that switching, the current begins to flow to the next sensor terminal. If the sensor turns on while the current is flowing to the sensor circuit, the value of the current of the current line may be greater. The controller detects value of the current and decides state of the sensor circuit in the sensor terminal according to the value of the current.

Abstract: A photoelectrical switching circuit, which produces a pulse-modulated light for detecting presence of an object by light interruption or reflection, comprises a frequency divider circuit and a signal output circuit and may comprise a control circuit. The frequency divider circuit includes a counter formed by flip-flops and an operation stop circuit. The counter generates light emission pulse signals with variable period and read pulse signals to pick up light sensing signals and outputting the state of the final stage flip-flop as an operation signal. The operation stop circuit stops the operation of the final stage flip-flop after the operation signal is input. The signal output circuit, which provides output signals after the operation signal is input, includes a shift register for shifting the light sensing signals in step with clock pulses, a set output AND circuit, and a reset output AND circuit.

Abstract: A method of manufacturing a strip for carrying a plurality of small size electronic parts such as LED's enclosed hermetically in resin includes the formation of a grid-like conductor strip member by interconnecting lead wires for the electronic parts in a grid-like pattern. The conductor strip member is molded integrally with a strip segment in which the plurality of electronic parts are mutually connected by a runner member. A connecting portion is formed integrally at least at one end of the strip segment at a predetermined position such that while connecting the connecting portion of a first plastic strip segment with one end of a second plastic strip segment, wherein the predetermined position of the connecting portion is such that the distance between the preassigned mount locations for the small size electronic devices positioned on both sides of the connecting portion coincides with the predetermined pitch.

Abstract: A built-in indicator switch unit include an indicator and a switch within a casing so that the switch is operated by a pushing operation applied to a light-transmissible operation cover provided in the front side of the indicator. The switch is actuated by an operation mechanism which inverts the pushing force exerted on the operation cover to an opposite direction in response to the pushing operation applied to the operation cover. The indicator and switch are attached to a printed circuit board arranged in the casing, substantially in parallel to the front surface of the casing and projecting out at one end from the casing.

Abstract: A scale indicator used with an electronic setting apparatus, in which at least one of first and second indication sheets has the front surface with a plurality of scale marks and windows, and a third indication sheet rotatable from outside is arranged in 9 space between the first and second indication sheets. At least one of two surfaces of the third indication sheet is printed with characters of a plurality of series of units and numerals representing a plurality of setting scale ranges. The characters of each series of units and numerals are visible from outside through the windows by changing the angle of rotation. A single indicator is thus able to indicate a plurality of scale ranges being available for setting physical quantities and other numerical values.

Abstract: A strip for carrying a plurality of small size electronic parts such as LEDs enclosed hermetically in resin and a method of manufacturing the same. A grid-like conductor strip member is formed by interconnecting lead wires for the electronic parts in a grid-like pattern. The conductor strip member is partially embedded within resin to form a strip segment in which the plurality of electronic parts are mutually connected by runner member. The strip segment has a connecting portion formed integrally at least at one end thereof. By connecting together continuously a number of the strip segments by means of the connecting portions through repetitive cycles of molding operation, the electronic part carrying strip of any desired length up to a semi-endless length can be manufactured.

Abstract: A small electric device accommodating therein a printed substrate having electric circuitry and employing terminal connecting devices for connecting electric wires from external devices to terminals on the printed substrate, the terminal connecting devices being fastened to a terminal section of a holding member. Positions of the terminals on the substrate and mounting positions of the corresponding terminal connecting devices are so arranged that the terminals on the substrate and portions of the terminal connecting devices are brought into contact and are connected electrically upon assembly of the substrate and the holding member.

Abstract: A method of manufacturing a compact switch includes steps of(a) forming a base by insert molding on terminal members such that terminal pins of the terminal members are extended downward through the base when the terminal members, one of which has a bimetallic plate-fixing portion and another of which has engaging grooves to be engaged with a movable spring member, are punched in a hoop member;(b) fixing a bimetallic plate to the fixing portion of the one terminal member, a fixed contact being attached to a free end of the bimetallic plate which is displaced when temperature of the bimetallic plate is raised;(c) bringing a movable spring member into engagement with the engaging grooves of the other terminal member, a movable contact to be faced to the fixed contact being attached to a free end of the movable spring member;(d) bringing a lower end portion of a push button member into engagement with the movable spring member;(e) cutting the terminal pins at predetermined positions from a lead frame of the hoop

Abstract: A push switch includes a central contact member arranged on a contact support member with an annular peripheral contact member surrounding the central contact member. An elastic conductive member such as a belleville spring and the peripheral contact member along their entire outer edge portions are fixedly held within an insulating case in a manner to seal the space around the central contact. In addition, an elastic spring member may be provided in a position covering the elastic conductive member. A plurality of the push switches may easily be manufactured on an assembly line by forming a multiplicity of central contacts, peripheral contacts and conductive members in separate processes and sequentially going through a first and second insert molding processes.