Abstract: A multi-functional apparatus is provided with a casing including first openings, a second opening, a third opening, a fourth opening, a fifth opening, and first and second cavities; a PCB in the casing and including a plurality of USB ports in the first openings respectively, an on/off switch in the second opening, a power-on light in the third opening, a power connector in the fourth opening, and a USB receptacle in the fifth opening; first and second holders retractably disposed in the first and second cavities respectively, each of the first and second holders including a horizontal platform and a vertical door; a seat on the PCB and including exposed recesses; and hollow members each including two peripheral flanges on lower and upper ends respectively, and wells on the peripheral flanges respectively. The lower flange of each hollow member is releasably disposed in one of the recesses.

Abstract: A multi-functional USB hub includes a casing including U-shaped first openings, grooved rails alternating with the first openings, grooves each being inward of a corresponding grooved rail, each groove having a T-shaped cross-section and communicating with the corresponding grooved rail, and second, third, and fourth openings on a front end; a cover including inverted U-shaped openings, grooved rails alternating with the inverted U-shaped openings, and transverse top troughs, each interconnecting two opposite grooved rails and communicating therewith so that the casing and the cover are fastened together; a PCB in the casing and the cover and including USB ports on either side, each USB port being in both the first opening and its corresponding inverted U-shaped opening, LEDs on either side and alternating with the USB ports; and inverted U shaped sliding members, each including two vertical parts on two sides respectively, a horizontal part, and two inner slides.

Abstract: A device for measuring solution concentration includes housing, a catadioptric structure, an electromagnetic radiation emitter and an electromagnetic radiation detector. The housing is formed with a detecting part for receiving a solution to be detected. The catadioptric structure is received in the housing, and includes a ray entrance portion, a first total internal reflection part, a second total internal reflection part and a ray exit portion. An accommodation part corresponds to the detecting part. The emitter is disposed at one side of the ray entrance portion, and a ray sequentially passes the ray entrance portion, the detecting part, the solution to be detected, and the first total internal reflection part. Then, the ray is totally internally reflected and converged to the second total internal reflection part, and is reflected again. Finally, the ray passes the ray exit portion and is received by the detector.

Abstract: A bicycle air pump includes an air cylinder; a joining member on the cylinder and including upper, intermediate and lower chambers, and a passageway communicating the cylinder with the lower chamber and a relief valve; an activation assembly on the joining member and including a hollow spring-loaded stem in both the intermediate chamber and the lower chamber, an end seal, a cap on the upper chamber, a push rod through the cap to urge against the seal and having an axial hole and a lateral hole communicating with the axial hole, a knob secured to the push rod and the cap, and an outlet; a pressure gauge on the joining member and communicating with the passageway; an inlet assembly secured to bottom of the cylinder and including a check valve; and a blocking member secured to bottom of the stem for blocking the passageway when in an inoperative position.

Abstract: A combination device includes a base, a hinged bottom, a motherboard, and a frame. A first space for accommodating a HDD, a second space for accommodating a cable, and a compartment for accommodating the motherboard are provided in the base and the frame. The compartment includes two grooves at front and rear ends respectively, an opening, and a through hole. A lock member and a first biasing member are disposed in each groove. A pivotal arm is formed with the lock member. The base includes four first bossed holes at four corners respectively, and four second bossed holes. Second biasing members are anchored in the second bossed holes respectively. The frame includes an opening on a central portion of a top for accommodating the connector. The HDD is mounted on the connector. Tops of the second biasing members urge against an inner surface of the top of the frame.

Abstract: A pressure regulator for paint ball gun includes a first housing including a hollow projection on a first end surface, an axial channel through the projection, and a connector on a second end surface; an output pressure gauge on the first housing; a check valve on the first housing; a pressure regulation assembly including a sleeve fastened in the channel and having an axial tunnel, a biasing member in the tunnel, and a hub on the biasing member; a hollow second housing including an internal space with the projection disposed therein, and holes on an end, each hole having overlapping circular portions and of larger and smaller sizes; and fasteners through the overlapping circular portions of smaller size of the holes into the first housing. In an unfastened state of the second housing, the fasteners are through the overlapping circular portions of larger size of the holes.

Abstract: An apparatus comprising a sensor and a processor. The sensor may be configured to capture a first video signal having a first field of view. The processor may be configured to generate a second video signal having a second field of view and a third video signal having a third field of view. The second video signal may generate the second field of view to include a first portion of the first video signal. The third video signal may generate the third field of view to include a second portion of the first video signal. The second portion may be processed to remove possible warping present on a bottom portion of the first video signal. The first and second portions may comprise an area less than the first field of view.

Abstract: A combination device includes a charger including a socket and USB ports; holders each including a lengthwise groove; block members each configured to insert into the USB port; joining members each including two sets of first and second axes wherein the first axes are pivotably secured to the holder and the second axes are pivotably secured to the adjacent holder; first and second hinges each including a first part having two axes and a pivot, and a second part having two axes and a hole for receiving the pivot. The first part of the first hinge and a corner of the charger are hinged and the second part thereof and a corner of the adjacent holder adjacent are hinged. The first part of the second hinge and a corner of the holder are hinged and the second part thereof and a corner of the distal holder are hinged.

Abstract: A fan assembly includes a housing including two first slits on a bottom; a mount on the housing and including two second slits aligned with the first slits; a louver on the housing and including openings and at least one outtake between the louver and a front of the housing; first and second side caps for fastening the housing and the louver together; a PCB on a side of the housing; an exposed touch screen adjacent to the PCB and configured to activate the PCB; a transverse fan in the mount and electrically connected to the PCB; two pivotal members each including two opposite projections slidably disposed in the first and second slits; and two auxiliary supports on the at least one outtake, each auxiliary support including a shaft rotatably disposed in the pivotal member, and slots.

Abstract: A fan assembly includes a housing including two first slits on a bottom; a mount on the housing and including two second slits aligned with the first slits; a louver on the housing and including openings and at least one outtake between the louver and a front of the housing; first and second side caps for fastening the housing and the louver together; a PCB on a side of the housing; an exposed touch screen adjacent to the PCB and configured to activate the PCB; a transverse fan in the mount and electrically connected to the PCB; two pivotal members each including two opposite projections slidably disposed in the first and second slits; and two auxiliary supports on the at least one outtake, each auxiliary support including a shaft rotatably disposed in the pivotal member, and slots.

Abstract: A portable air tank includes a reservoir including a space for containing compressed air, an upper neck, a channel through the neck, internal threads on a surface of the channel, external threads on an outer surface of the neck, and an annular bottom in the channel; a communication member in the channel and including a stem, a tunnel in the stem, and an annular member on a bottom of the stem and rested on the annular bottom; a sealing ring rested on the annular member; and a cap including an axial hole for receiving the stem, external threads secured to the internal threads to urge the annular member against the annular bottom for airtight purposes, and a top handle member.

Abstract: A planter is provided with concentric U-shaped first ridges on a first half portion of a bottom; concentric U-shaped second ridges on a second half portion of the bottom; concentric U-shaped first recesses on a first half portion of an underside; concentric U-shaped second recesses on a second half portion of the underside; a corrugated wall; a flange on a top of the corrugated wall; an upstanding lip on an outer edge of the flange; and a board insert on the flange and including a top surface, a flange member on a bottom edge of the top surface, and rows of bottom holes each having an annular wall.

Abstract: A modular autofocus system having the characteristics of simple manufacturing process and high yield is disclosed to include a package member having a lightpath cut through opposing top and bottom sides thereof, coils packaged in the package member around the lightpath using the IC packaging technology, and a driver packaged in the package member using the IC packaging technology and electrically coupled with the coils.

Abstract: A laptop cooling pad includes a cover including a top louver, an intermediate recess, openings between the louver and the recess, a rear channel communicating the recess with an open rear end, and two stop members pivotably disposed on the rear end of the cover; a casing releasaby secured to the cover and including extendible legs pivotally on a bottom of the front portion of the cover; a transverse fan in the casing and under the louver, the transverse fan including a shock absorbing member; and a PCB for supplying power to the transverse fan and configured to control the transverse fan. In response to activating the transverse fan, cooling air is drawn into the transverse fan via the louver and flows upward and rearward respectively.

Abstract: A pressure regulator for paint ball gun includes a first housing including a hollow projection on a first end surface, an axial channel through the projection, and a connector on a second end surface; an output pressure gauge on the first housing; a check valve on the first housing; a pressure regulation assembly including a sleeve fastened in the channel and having an axial tunnel, a biasing member in the tunnel, and a hub on the biasing member; a hollow second housing including an internal space with the projection disposed therein, and holes on an end, each hole having overlapping circular portions and of larger and smaller sizes; and fasteners through the overlapping circular portions of smaller size of the holes into the first housing. In an unfastened state of the second housing, the fasteners are through the overlapping circular portions of larger size of the holes.

Abstract: A bicycle air pump includes an air cylinder; a joining member on the cylinder and including upper, intermediate and lower chambers, and a passageway communicating the cylinder with the lower chamber and a relief valve; an activation assembly on the joining member and including a hollow spring-loaded stem in both the intermediate chamber and the lower chamber, an end seal, a cap on the upper chamber, a push rod through the cap to urge against the seal and having an axial hole and a lateral hole communicating with the axial hole, a knob secured to the push rod and the cap, and an outlet; a pressure gauge on the joining member and communicating with the passageway; an inlet assembly secured to bottom of the cylinder and including a check valve; and a blocking member secured to bottom of the stem for blocking the passageway when in an inoperative position.

Abstract: A siphon includes a hollow member including an upper enlargement, intermediate external threads, and lower external threads; an internally threaded ring secured to the intermediate external threads; a guide tube including a plurality of annular grooves on an outer surface, the guide tube being moveably partially disposed in the hollow member; a plurality of O-rings in the annular grooves; a tubular member around the guide tube and secured to the upper enlargement, the tubular member including a plurality of openings; and a sleeve moveably put on the tubular member.

Abstract: A display lifting device includes: a body; an adjusting unit having big and small wheels coaxially disposed on the body, a shaft fixed to the body, and a rock arm pivotally fixed to the shaft and having first and second arms; a spring having one end fixed to the body; a first rope member wound on the small wheel and having two ends connected to the first arm and the other end of the spring, respectively; and a second rope member wound on the small and big wheels and having one end connected to the second arm, and a sliding unit for carrying a display such that the display is movable between a first position and a second position. Since the sum of torques produced on the first and second arms is kept equal to zero, the display can stop at any position between the first and second positions.

Abstract: A conductive structure comprises a plurality of first nanowires and a plurality of second nanowires. The first nanowires extend along a first direction substantially. The second nanowires extend along a second direction substantially, and at least a part of the second nanowires electrical connect to the first nanowires. The included angle between the first and second directions is nonzero. A manufacturing method of the conductive structure is also disclosed.

Abstract: A display lifting device includes: a body; an adjusting unit having big and small wheels coaxially disposed on the body, a shaft fixed to the body, and a rock arm pivotally fixed to the shaft and having first and second arms; a spring having one end fixed to the body; a first rope member wound on the small wheel and having two ends connected to the first arm and the other end of the spring, respectively; and a second rope member wound on the small and big wheels and having one end connected to the second arm, and a sliding unit for carrying a display such that the display is movable between a first position and a second position. Since the sum of torques produced on the first and second arms is kept equal to zero, the display can stop at any position between the first and second positions.