Abstract: A wheel bracket for wheeled luggage comprises a convex top portion of the wheel housing situated above the bottom plate; a raised portion formed from a higher portion to a lower portion on a surface of the front plate; and a first plurality of recesses and a plurality of longitudinal and transverse ribs formed on a back of the front plate in which one of the first recesses having a lowest height is substantially flush with a highest point of the convex top portion; wherein a second recess is formed on a bottom of the raised portion having a height generally equal to that of the convex top portion, and the second recess substantially has the same thickness in longitudinal cross-section as remaining portions of the front plate. With this construction, the raised portion of the wheel bracket substantially has the same thickness in its longitudinal cross-section. Further, the wheel bracket may be manufactured in a single injection molding with a smooth surface of the front plate.

Abstract: A bandwidth enhancement method by adding a peaking capacitor to a transimpedance amplifier for creating peaking effect is to add a peaking capacitor to a transimpedance amplifier for obtaining an extra pole that can alter circuit phase and enhance bandwidth of the transimpedance amplifier without changing the framework and DC gain of the original amplifier circuit.

Abstract: An ink cartridge including a case having an ink absorbent received therein and an ink-dispensing outlet provided at a bottom thereof, and a cover closing the case is provided. The cover is provided with at least an ink-filling hole, a vent hole vertically extending down into the case, and a capped ink-refilling hole. The cover is also provided at a bottom surface with a plurality of spaced transverse pressing ribs which alternately extend from two longer sides of the cover to end at points a distance exceeded a longitudinal centerline of the cover, such that a wound air path is defined below the cover by the pressing ribs for air entering into the case via the vent hole to evenly and smoothly flow throughout the case via the wound air path above the ink absorbent to ensure even and smooth supply of ink to the ink-dispensing outlet. And, a stop disc is mounted around a lower portion of the vent hole below the cover to prevent vaporized ink from entering into and thereby clogging the vent hole.

Abstract: A liquid ornament having means for creating continuous liquid flow is provided. The liquid ornament includes a display chamber for containing liquids, such as water and oil, and a control chamber for accommodating the means for creating liquid flow. The means for creating liquid flow mainly include an elastically flexible material that forms a partition between the display chamber and the control chamber, a push member having a free end contacting with the flexible material, a magnet attached to the free end of the push member, and a coil mounted within a magnetic field of the magnet. When the coil is continuously supplied with an electric current, it alternately magnetically repulses or attracts the magnet and accordingly causes the free end of the push member to intermittently push or strike the flexible material, producing continuous liquid flow in the display chamber when the whole liquid ornament is in a still state.

Abstract: A multi-directional mounting bracket for adjustably mounting an article, such as an audio speaker or light fixture, to a surface includes a first mounting member (10) for attachment of the bracket to the surface. A spherical housing (14) is connected to the first mounting member (10), and a receiving socket (20) is selectively mountable to the spherical housing (14) by engagement of a fastener (22) to the spherical housing (14). The receiving socket (20) is connected to a second mounting member (18) for attachment to the article. The receiving socket (20) is selectively mountable along a spherical orbit of the spherical housing (14), and thus provides a greater range of adjustment and positioning of the article with respect to the surface to which it is attached.

Abstract: Adjustable disc brake bracket especially applicable to rally bicycle. The disc brake bracket includes an upper bracket, a lower bracket, an adjustment section, an insertion section, a retaining seat and a stop section. The adjustment section is positioned between the upper and lower brackets for adjusting the angle contained thereby. The insertion section is a notch formed on lower end of the lower bracket and fitted on the end of the wheel shaft. The retaining seat is mounted on the upper bracket for fixedly connecting with the disc brake apparatus of the bicycle. The stop section is disposed on the upper bracket for abutting against the frame body of the bicycle.

Abstract: An improved hidden drain outlet structure for sink includes a drain pipe, a drain head screwed to the drain pipe at an upper end thereof and a filter movably screwed to the drain head. The filter may trap and collect external articles and garbage to prevent the drain pipe from clogging, and may be disassembled easily for repairs. The drain head and filter form a double curve-shaped top surface with a converged valley to facilitate water discharging and form a sturdy and safe construction and has aesthetic appearance.

Abstract: The resent disclosure relates to an inductance element and its preparation method. The inductance element comprises a coil structure, an insulation layer, a conductive metal layer and a metal core layer. The preparation method comprises, preparation of a coil structure, applying an insulation material on said coil structure to fix said coil structure, applying a conductive metal layer to form a multiple-layered core structure. In the preparation of the multiple-layered core structure, an intermittent plating approach is adopted, such that the cross-sectional area of the magnetic circuit may be increased. The coil structure applicable to this invention includes one prepared on a printed circuit board or a winded enameled wire coil structure. When a group of two coils is prepared, the inductance element may function as a transformer.

Abstract: An improved sealing valve structure for liquid sprayers, in particular an improvement directed to an enclosed space formed in an interior of a valve of a manually operable sprayer or atomizer, essentially an improvement of the structure of a tightening valve and a movable valve, includes a tightening valve disposed below a compression chamber and capable of interaction with a movable valve, the tightening valve being integrally formed with a cylinder so that they are concentric and have enhanced durability to prevent loosening and failure of the tightening valve due to prolonged subjection to the action of the movable valve. An edge of an inner periphery of the tightening valve is provided with a projecting annular tightening end that achieves good tightness and smoothness during interaction with the movable valve so as to enhance their mutual tightness, stability and smoothness.

Abstract: A precise and rapid positioning mechanism for stencil printing comprising a stencil, a carrier, a plurality of pins, and a plurality of positioning pins. There are a plurality of same sized pin eyes formed on both the stencil and the carrier respectively at positions facing against each other for interposing the pins therebetween to set the stencil and the carrier. Next, raising the positioning pins by air cylinder supplied from the carrier so as to fit setting holes on the substrate into the corresponding positioning pins thereby firmly securing the substrate. Then afterwards, by imbibing the substrate with vacuum evacuation force from the carrier so as to put down the positioning pins thereby attaching the stencil together with the substrate and trans-printing a desired pattern on the substrate.

Abstract: A structure of cap capable of elastic adjusting the cap, being comprised of the elements including a visor, a crown and a tape member, the crown is provided on the inner side of the bottom edge thereof with a tape member which is formed by sewing together two elastic bands and two sweatbands alternately sewn together; the elastic bands are respectively sewn on two elastic middle panels of the crown of the cap to allow adjustment of the size of the crown to suit various head sizes and shapes of different users; thereby an effect of elastically adjusting the crown can be obtained, manufacturing and sampling cost for various types of caps can thus be reduced.

Abstract: An omni-directional broadband helical antenna array having a square electric circuit board with the back side thereof grounded, wherein, the four orthogonal corners on the surface of the electric circuit board are provided each with a helical antenna. The distance between every two of the helical antennae is in the range of 0.25 &lgr;-0.3 &lgr;. The helical antennae feed signals outwardly via microstrip lines, the length of each of the microstrip lines is ¼&lgr;; and they feed signals outwardly via another microstrip line after gathering the above mentioned microstrip lines. Thus an omni-directional broadband helical antenna device capable of mounting in a communication instrument such as a notebook style computer is formed.

Abstract: A height-adjusting mechanism for armrest includes a slider movably mounted in a slide way of a sleeve connected at a lower end to a seat of an armchair. A retaining block horizontally extends through a transverse hole on the slider and into one of many vertically spaced locating holes on the slide way to hold the slider at a certain height relative to the sleeve. A long plate having a top handle is attached to one side of the slider and could be pulled upward and elastically return to an original position when being released. When the long plate is pulled upward, it drives the retaining block to disengage from the locating hole and allows the slider to freely move up and down. And, when the long plate is released, the retaining block is driven to engage into another locating hole to hold the slider to a new height.

Abstract: An automatic infusion-monitoring instrument includes a clip adapted to clamp a flow-indicating cylinder of an infusion set corresponding to a liquid level in the cylinder that keeps unchanged when there is sufficient amount of infusion liquid in the infusion set, a floater pre-disposed in the flow-indicating cylinder to move upward and downward along with the liquid level in the flow-indicating cylinder, a detecting unit having an emitter and a receiver mounted in the clip to normally face the floater, and an alarm unit electrically connected to the detecting unit via a conducting wire. When the liquid level in the flow-indicating cylinder lowers so that the floater is moved to locate below the emitter and the receiver and no longer blocks the wave emitted by the emitter, the alarm unit is actuated to emit sound, voice, light or flash as a warning signal of running-out infusion liquid.

Abstract: A cipher type anti-theft system for cars using an in-car wiring to transmit a cipher mainly includes an encoder/transmitter and at least one decoder cut-off relay. The encoder/transmitter generates a cipher and converts the cipher from digits to analog signals for loading onto the in-car wiring. The at least one decoder cut-off relay may be installed at any point on any power supply circuit needed to start the car. When the at least one decoder cut-off relay receives a correct cipher, it can decode the cipher and make the power supply circuit to allow start of the car. The encoder/transmitter and the decoder cut-off relay can be installed in the car without producing additional (or direct) wiring and are therefore not easily found from outside. The encoder/transmitter may be an independent and portable unit associated with certain in-car equipment, such as a cigarette lighter, and uses the cigarette lighter holder, for example, as an interface to receive and transmit the cipher.