Abstract: A ball-point pen comprises: a ball-point pen tip, a coil spring, a refill, a mid tube, a upper tube, a clip, a sliding bar, a lower holder, a pen cap, a back plug spring, a sliding bracket, and a back plug; wherein the refill spring is placed inside the ball-point pen tip holder, the refill is placed inside the space formed between the tip holder and the mid tube, the lower holder is fixed on the pen cap, the sliding base, back plug spring, and back plug is fixed on the lower holder whiling being moveable, the sliding bar is fixed inside the sliding bar, the sliding bar is placed inside the sliding base, the refill is connected to the mid-connected tube, the mid-connected tube is connected to the upper-connected tube, and the upper-connected tube is connected to the pen cap. Accordingly, the characteristic of convenient replacement of refills, comfortable writing, and good appearance with regard to a ball-point pen can be achieved.

Abstract: A bidirectional optical transmission device has a housing having a guide portion in which an end of a single optical fiber is to be inserted. A light-receiving device and a light-emitting device are provided in the housing. Light path restricting members are provided in the light-receiving device so as to restrict light beams entering the light-receiving device.

Abstract: A mechanical crayon pen with an internal cartridge to hold multiple crayon sticks has a transparent barrel (10) with an open top, an inner diameter and an inner surface, a thrust device (20) mounted inside the transparent barrel (10) and a thrust actuator (30) mounted on the open top of the transparent barrel (10). The thrust device (20) has an inner tube (21) movably mounted inside the transparent barrel (10). The inner tube (21) has an outer surface and an outer diameter smaller than the inner diameter of the transparent barrel (10) to form a space (13) in the mechanical crayon pen to store multiple crayon sticks. Multiple longitudinal grooves may be defined in the inner surfaces defining the space (13) to hold individual crayon sticks.

Abstract: The invention relates to a method for determining the stress capacity of a person taking into consideration the individual anaerobic threshold by measuring lactate concentrations in relation to physical effort. To make it possible to deduce from the changes in lactate concentration other performance data characteristic of the person tested, the invention provides for the following process steps: measurement of time-dependent lactate concentration changes above the individual anaerobic threshold; adjustment of the measurement cure, in which lactate concentration is recorded in relation to time, to the measurement values obtained in this way; determination of a first rise in the measurement curve at a time tIAT which corresponds to the individual anaerobic threshold: determination of at least one other rise in the measurement curve at a time tx where tx>tIAT and subtraction of the second rise from the first rise to determine a difference ?A.

Abstract: An electret microphone comprises a back plate having a stationary back electrode and secured to a substrate. An electret layer is formed on the stationary back electrode and a spacer is mounted on the back plate. A diaphragm electrode is mounted on the spacer.

Abstract: The invention concerns a rolled or extructed product, in particular a tube, made of an alloy composition (expressed in wt. %) comprising: Si<0.30; Fe 0.20-0.05; Cu<0.05; Mn 0.5-1.2; Mg<0.05; Zn<0.50; Cr 0.10-0.30; Ti<0.05; Zr<0.05; the balance consisting of aluminium and unavoidable impurities. The invention also concerns a method for making extruded tubes of said composition comprising casting a billet, optionally homogenizing it, extruding a tube, drawing said tube in one or several passes and continuous annealing at a temperature ranging between 350 and 500° C. with a temperature increase of less than 10 seconds. The inventive products are designed for pipes and heat exchangers for motor vehicles, and exhibit good corrosion resistance.

Abstract: A microphone set comprises a microphone assembly having a square pillar shape, and a tube which has a cylindrical shape and covers the side wall of the microphone assembly.

Abstract: A throttle control device includes a throttle body (1). In the throttle body, an intake passage (1a), a first space (24a), and a second space (44) are formed. In the intake passage, a throttle valve (2) is rotatably arranged. The throttle valve is rotated by a motor (4). The motor is accommodated in the first space. The second space communicates with the first space. In addition, the second space is adjacent to the intake passage through the intermediation of a wall portion (20a). This makes it possible for the heat generated in the motor to be effectively dissipated from the first space into the intake passage via the second space and the wall portion.

Abstract: Reciprocating cutting tools (1, 90, 100) may include a drive source (11) for reciprocally driving a blade (B). The drive source may also drive a blower (13) in order to generate an air stream. An air channel (50, 56, 50, 70, 85, 80) may guide the air stream to a position adjacent to the blade or a workpiece (W) that will be cut by the blade. Further, a chip collector nozzle (57) may draw or suction cutting chips away from the workpiece that has been cut by the blade.

Abstract: A wrench including a stem having a head section at one end of the stem and a polygonal socket formed in the head section for fitting onto a screwed member. A resilient ring is disposed at the head section and pivotally connected with a controlling switch pivotally disposed at the head section. By means of operating the controlling switch, the resilient ring is driven to expand or close. In the closed position, the resilient ring obstructs at least one inner angle of the socket to prevent the screwed member from detaching out of the socket and clamp the screwed member in the socket. In the expanded position, the resilient ring frees the inner angle, permitting the screwed member to freely pass through the socket.

Abstract: A temperature control system for maintaining a nitrous oxide pressurized bottle at a preselected temperature and pressure for injecting nitrous oxide into an engine is disclosed. The system includes a generally box shaped insulated container having a hinged cover. The nitrous oxide pressurized oxide bottle having an outer surface is disposed within the container and fixed in the bottom thereof. The system also includes a temperature sensor for sensing the temperature of the nitrous oxide bottle and a thermoelectric air conditioner for heating and cooling the pressurized bottle to maintain a preselected temperature and pressure.

Abstract: Power tools (1) may include an electric motor (11) disposed within a housing (5). A lighting device (20) may be mounted on the housing and may serve to illuminate the area around a tool bit and/or a portion of a workpiece (W) that will be machined by the tool bit. An electric light (23) may be connected to a power source circuit (11a) via an electric line that includes electric wires (25). In order to facilitate the wiring operation, a wire guide (22, 122) preferably supports or retains at least a portion of the electric line. The wire guide may be mounted on the housing such that the wire guide extends along an inner surface or an outer surface of the housing. In the alternative, the electric line may be disposed within a recess (31) defined within an inner surface or an outer surface of the housing. In either case, the electrical line can be easily wired or installed and the electric line preferably does not interfere with machining operations during operation of the power tool.

Abstract: A gas detection instrument comprises a combustible gas sensor and associated circuitry, which supplies power to the sensor and measures and displays resulting sensor response. The supplied power is switched between timed pulses of electricity and steady state electricity, with the intermittent electricity being employed only when no significant change in sensor output has been detected. Alternatively, timed pulses of electricity are maintained, and predictive software algorithms are used to give readings for gas concentration during interruption of the power supply. The sensor operation enables the instrument to respond to rapid changes in gas concentration while minimizing power consumption of the sensor.

Abstract: An LED is mounted on a substrate, and a protector made of a transparent material is provided for sealing the LED. A color correcting filter is formed on the protector. The color correcting filter has an effect of changing chromaticity of emitted light of the LED to desired chromaticity of illuminating light to be discharged from the LED device.

Abstract: The invention relates to an installation for implementing a method for detecting a deposit (D) that might form inside a fluid transport pipe (2). According to the invention, the installation comprises: at least one production source (3) for producing a thermal gradient, the source being for mounting on an “active” zone (Za) of the outside surface of the pipe; at least one measurement sensor (7) for measuring heat flux, the sensor being for mounting on a zone (Zm) of the outside surface of the pipe situated relative to the active zone at a given distance in consideration of the length of the pipe; and control and monitoring means (5) connected to the production source (3) and to the measurement sensor (7), and adapted to detect when the heat flux corresponding at least in part to the applied thermal gradient and transmitted by the pipe exceeds a determined threshold indicative of the presence of a deposit inside the pipe.

Abstract: Metal housing provided with a sidewall and a neck connected to the sidewall via a shoulder, the neck being constructed and arranged for irreversible fixation to a dispensing head for perfect leaktightness to liquids. The dispensing head includes a plastic flange provided with a sealing skirt and an outer catching skirt provided with a snap-fit rim on its inner surface, wherein the neck has a wall and the shoulder has a wall, both said walls being of substantially the same thickness as the sidewall.

Abstract: An airway airtight structure of pneumatic tool, including: a main body having a body section, a cylindrical chamber being formed in the body section, an inlet being formed in a predetermined position of a wall of the chamber for communicating with an incoming passage of the pneumatic tool; a cylinder member having a hollow cylindrical body coaxially accommodated in the chamber, a wall of the cylindrical body being spaced from the inlet; and a connecting section positioned in a position where an opening of the inlet is directed, the connecting section being sandwiched between the cylindrical body and the wall of the chamber. The connecting section includes two mating bodies mated with each other. A connecting face is positioned between the opposite mating ends of the mating bodies and inclined from the axis of the cylindrical body by a predetermined inclination angle. A connecting airway is formed on the mating bodies and extends through the connecting face to communicate with the inlet.