Abstract: A kite structure includes a body, and a skeleton. The body has an upper piece and a lower piece stitched on the upper piece in a locally overlapping manner. Each of the upper piece and the lower piece has a central portion provided with a positioning base and a plurality of retaining rings. Each of the upper piece and the lower piece has a front edge provided with curved tubular collars.

Abstract: A high frequency, voltage feedback control mode power converter having a microprocessor outputs a control clock signal and a simulated output voltage to control the dead-time value of a PWM controller. The control clock signal is decided by an input interrupt process program and an output interrupt process program written in the microprocessor. By appropriately providing the control clock signal for controlling the dead-time value of the PWM controller, the efficiency of the high frequency, voltage feedback control mode power converter is raised and an output steady response is also improved.

Abstract: A DC/AC air cleaner for a vehicle includes a chassis having a bottom plate and two side plates formed on two sides of the bottom plate, respectively. An insertion slot is defined in the bottom plate, and two inner plates are mounted between the side plates and configured to define a clamping slot, a positioning slot, and an engaging slot. A lower end of a face plate is held by the insertion slot. A lower end of an activated filtering mesh is held by the clamping slot. A lower end of a static discharger is held by the positioning slot, and the lower end of a fan is held by the engaging slot. An upper cover is provided to retain the upper end of the face plate, upper end of the activated filtering mesh, upper end of the static discharger, and upper end of the fan.

Abstract: A DC/DC charge and supply converting module has a function of constant-current charging an electrical appliance, and a function of supplying constant voltage power to an electrical appliance. The converting module includes a DC/DC converter and a charge module connected with an input end of the DC/DC converter. The charge module includes a comparator, a constant current source connected with a first input end of the comparator, and a bleeder circuit connected to a second input end of the comparator. The comparator is used for controlling an output voltage of the DC/DC converter to remain constant. The constant current source provides a constant current to the corresponding input end of the comparator and allows the DC/DC converter to output a constant current for the purpose of charge.

Abstract: Hybrid propulsion system comprising an internal-combustion engine (1) rotatably connected to a reversible electrical machine (2), a rechargeable battery (3), an electric driving motor (7), control apparatus (8) commanding first switching device (4, 5) for selectively connecting the battery (3) to the electric driving motor (7) and/or the reversible electrical machine (2). When the electric driving motor (7) is supplied with the current flowing in from the battery (3), said control apparatus (8) monitor the voltage at the poles (3P, 3N) of the battery (3). When the motor (7) is at least partially supplied with the current generated by the reversible electrical machine (2), owing to the latter being driven rotatably by the internal-combustion engine (1), the same control apparatus (8) monitor the voltage at the poles (2P, 2N) of the reversible electrical machine (2).

Abstract: A pressure adjusting device has a pumping device, a connector device, and a connection pipe connected to the pumping device and the connector device. The pumping device has a hollow cylinder, a plunger device inserted through the hollow cylinder, a cover covering the hollow cylinder, a check valve and a non-return valve inserted in the cover, and an inhale joint and an exhale joint connected to the cover. The connector device has a stepped post, a threaded rod inserted through the stepped post, a handle bar disposed on the stepped post, and a button disposed on the handle bar and receiving the threaded rod. The threaded rod has a head portion inserted in the connection pipe.

Abstract: A foot-actuated faucet includes a valve having a body, a bonnet attached to the body and a diaphragm mounted between the body and the bonnet to define a chamber in the bonnet. The body includes an inlet adapted to connect to a water source and an outlet to a spigot. A vertical outlet channel is formed in the body, connects to the outlet near the lower end and has a seat formed at the upper end. The seat is higher than the outlet. An actuating hole is defined in and extends through the bonnet, and an actuating tube connected to the actuating hole to communicate with the chamber. A hole with a diameter smaller than the actuating hole is defined in the diaphragm. An actuating device communicates with the chamber in the valve via the actuating tube and including an actuating valve movably received in the actuating device. The actuating valve includes a shank partially extending out of the actuating device and adapted to be stepped on by a user to selectively release pressure in the chamber.

Abstract: A suit hanger includes a hook having a straight portion and a frame connected to the hook. The frame has an articulating section in a middle thereof, thereby allowing the frame to be folded at the articulating section along a pivotal axis that is at an angle with an extending direction of the straight portion of the hook.

Abstract: A height adjustment mechanism for chair backrest or arm comprises a tube-like brace having a transverse elongate groove and transverse apertures; a sliding member in the brace with an upper end secured to backrest or arm; a guide member coupled to a lower end of the sliding member; a hook flexibly coupled to the guide member having an upper bent free end; a first half-cylindrical member in the brace for receiving a portion of the sliding member and the hook, an internal notched member having curved members and a longitudinal channel; a second half-cylindrical member in the brace matingly secured to the first half-cylindrical member, an upper hole, a lower hole, and a spring-depressible detent in the lower hole; and a lock pin inserted through the groove and the upper hole to secure the brace and the second half-cylindrical member together. Backrest or arm may be pushed down to cause the bent end to move through the channel and pulled up to lock in one of the curved members.

Abstract: A trailer fastening device has a fastening shaft, a collar, a spring, and a solid ball. The collar has a center hole, a through hole, and an inner recess hole receiving the spring and the solid ball. The fastening shaft has a middle blocking disk, a lower threaded rod disposed on a bottom of the middle blocking disk, and an upper rod disposed on a top portion of the middle blocking disk. The upper rod has a helical groove, a blind hole formed on an end of the helical groove, and the end of the helical groove being a bevel. The upper rod is inserted in the center hole of the collar. The collar is rotated until the solid ball reaches the blind hole of the upper rod.