Abstract: A caster includes a base carrying a rotation shaft and forming a pivotal joint seat. Wheels are rotatably mounted to the rotation shaft. Each wheel has an inside surface that is recessed to form an inner rim. A brake arm has a first end rotatably coupled to the pivotal joint seat and a second end forming a brake pawl extending into the inner rims of the wheels. A spring is arranged between the brake arm and the base so that the spring normally biases the brake pawl to depress against the inner rims of the wheels to brake the wheels. A release knob is rotatably mounted to the base and forms a cam section positionable against the brake arm. The cam section, when rotated by the release knob, drives the brake arm backward to release the brake pawl from the wheels, allowing the wheels to freely rotate.

Abstract: A bidirectional digital communication circuit and a bidirectional digital communication method for combining multi-channel signals to a duplex digital communication system apply time division multiplexing. The signals can be unidirectional and bidirectional; signals relationship is not necessary. The direction detector circuit determines signal directional automatically to avoid the signal loop. It's suitable for applying to fiber, cable or wireless communication system which is needed to minimize the communication channels.

Abstract: The driving device utilizing inertia mainly contains a battery, a motor, a flywheel, a casing, a transmission box, a casing, a generator, a rectifier, and a charger. The flywheel is mounted on a shaft and is housed in a vacuum chamber through shaft seal. The flywheel freely spins by itself after actuated by the motor. The flywheel's torque is then delivered to the transmission box which in turn delivers the torque to drive a vehicle such as automobile, vessel, plane, submarine, etc. On the other hand, the spinning flywheel drives the generator to produce electricity which is stored in the battery series-connected to the generator via the rectifier and the charger. As such, the driving device is able to power the vehicle while the surplus energy is stored in the battery for activating the motor and turning the flywheel to spin.

Abstract: Disclosed is an assembly of light-emitting units, which is applicable to a lighting device that comprises a plurality of light-emitting elements respectively mounted to heat dissipation units. The light-emitting elements give off light beams that project outward through a light-transmitting hood. One surface of the light-transmitting hood is provided with a light diffusion layer featuring light refraction. As such, the light beams emitting from the light-emitting elements are made converging on a light incidence area, which, together with the feature of light spreading of the light-transmitting hood, can spread off and thus homogenize the light beams to form a surface source, and can also concentrate the light energy of the lighting device to enhance the brightness. The lighting device can be applied to any lighting facility.

Abstract: A horizontal axis wind turbine with rotatable tower including nacelle and blades. The tower, the blades, and the nacelle are rotatable by following the shift of wind direction so as to align the blades to be facing with the wind direction for enhancing performances thereof. Also can eliminate the gearbox, as compared to the conventional horizontal axis wind turbine that the nacelle is not completely fixed with tower, the present invention is easy to manufacture with reduced costs.

Abstract: A laminated inductor includes a plurality of magnetic plates, each having a surface to which a high-permeability magnetic body is attached, and at least one spacer assembly interposed between the magnetic plates. The spacer assembly includes two magnetic boards having moderate magnetic permeability and a magnetic board having low magnetic permeability interposed between the two moderate-permeability magnetic boards. Both moderate-permeability and low-permeability boards are provided, at a surface of each board, with a magnetic body having high permeability. A magnetic top lid and a magnetic bottom lid are respectively set on outside surfaces of the topmost and bottommost ones of the magnetic plates. The high-permeability magnetic bodies mounted to the magnetic plates and the arrangement of the spacer assembly help improve the characteristic of DC superimposition of the laminated inductor thereby enhancing current endurance thereof.

Abstract: A wind-power water supply pump includes a housing, a rotary disk, a vane wheel, a direction control vane, a linkage, and a plurality of expandable tubes, wherein the rotary disk is rotatably mounted to a top of the housing and the vane wheel and the direction control vane are symmetrically arranged on opposite sides of the rotary disk. The vane wheel is set in driving coupling with the linkage. The vane wheel, when rotated by winds, drives repeated expansion/compression of the expandable tube. The change of the volume of the expandable tube is used to deliver water so that the consumption of human labor and additional power supply that are used to deliver water in areas where power is not readily acquired but wind power is available can be cut down.

Abstract: A target pressure detection device (1) includes a housing (10), a resilient membrane (12), and a pressure detection unit (14). The housing (10) forms a chamber (102) having an open end and the housing (10) forms a through hole (104). The resilient membrane (12) is mounted to the housing (10) to cover and close the open end of the housing (10) so as to set the chamber (102) in an air-tight condition. The pressure detection unit (14) is mounted to the through hole (104) and forms therein an accommodation compartment (140) that movably receives therein a floating element (142). The accommodation compartment (140) receives therein a sensor (144). The sensor (144) can effectively detect a movement of the floating element (142) and thus the precision of detection of the target can be improved through detecting change of airflow.

Abstract: A coaxial electric connector includes primarily a dielectric shell and a housing unit which is in an arc shape. The dielectric shell is formed by extrusion formation based on the housing unit and defines an annular space, with a predetermined wall being formed with two fixing sections to define the arc according to the housing unit. Besides, a bottom of the dielectric shell is a dielectric base and an interior of the dielectric shell contains additionally a conductor, a position of which is fixed by the dielectric base. A conductor pin on the conductor, whereas, is extended outward from the dielectric base. Through wrapping of the dielectric shell, the housing unit increases roundness of the entire housing and decreases scratching on a surface of metal part, which occurs when manufacturing the products, thereby improving a yield rate and a service life of the products.

Abstract: A drawing case for an electronic information storage medium comprises a case body; a panel including a holder, a locking tool slot, a first through hole and a plurality of heat dissipation holes; a locking tool mounted in the locking tool slot and connected to an engaging piece that is provided with a first resilient element; a handle including a hook, one end of the handle being pivotally disposed on the holder, wherein the hook passes through the first through hole and engages with the engaging piece and is propped against the first resilient element. In this manner, the purpose of ease of drawing can be achieved by pressing the locking tool to open the handle, thereby not only significantly reducing manufacturing costs and assembly/disassembly complexity, such as eliminating the use of screws, but also enhancing the heat dissipation efficiency.

Abstract: The present invention relates to a new improved modular structure to expand and enhance SIM (Subscriber Identity Module) card functionality, in which an expansion and enhancement module is fitted to a predetermined mobile communication device, and the predetermined mobile communication device comprises a subscriber identity module. The subscriber identity module is configured with an electrical connection module, and the electrical connection module is electrically connected with a controller, which can be an NFC (Near Field Communication) module. The controller is electrically connected with a subscriber identity chip and a Dual-interface card (Combi card), and the Dual-interface card is electrically connected with an antenna. Hence, according to the structure described above, the present invention is able to achieve contactless type transactions without the need to replace the SIM card or system operator.

Abstract: The cushion pad according to the present invention contains a ciliated member and a base member, both made of a flexible plastic material and having a same planar shape. The ciliated member has a large number of hollow protrusions on a front side. The base member is attached to a back side of the ciliated member by high-frequency fusing their circumferences together to form a rim belt with two openings. A pressure release valve is plugged in one opening, and a one-way valve and a pumping device is plugged in the other opening. When air is pumped into a closed space among the ciliated member, the base member, and the rim belt by the pumping device, the cushion pad could offer significantly superior shock absorption.

Abstract: A gear-shifting structure is provided for a vehicle. The vehicle includes a transmission box that contains therein a gear train, a clutch, a switching fork, a gear-shifting hub, and a motor. The motor cooperates with a worm shaft to actuate the clutching operation of the clutch and to cause movement of the gear-shifting hub in order to carry out the gear shifting operation. The motor has a rotary member that drives the worm shaft on which a worm and a cam are mounted. To effect gear shifting, the motor drives the worm shaft to have the cam abut and displace the clutch and at the same time, the worm drives the gear-shifting hub to thus realize the operation of gear shifting.