Abstract: A boring bit has a head, a blade assembly and a blade. The head has a mounting recess and two holding protrusions. The mounting recess is formed in the head and has a restricting surface and a threaded hole. The holding protrusions are formed on the restricting surface and each has two oblique restricting faces. The blade assembly is attached to the head and has a mounting base. The mounting base is mounted in the mounting recess and has an inner surface, a through hole and a guiding channel. The inner surface abuts with the restricting surface. The through hole is formed through the mounting base and aligns with the threaded hole. The guiding channel is formed in the mounting base, is mounted around the holding protrusions and has two abutting surfaces abutting the oblique restricting faces of the holding protrusions. The blade is detachably mounted on the blade assembly.

Abstract: A vibration-exercising machine has a supporting frame, a main platform being mounted on the supporting frame, at least one additional platform being mounted on the supporting frame and multiple vibrators being mounted in each corresponding platform. The vibration-exercising machine allows different parts of a user to be vibrated and exercised efficiently at the same time with easy and comfortable poses.

Abstract: A solar generator distributively performing maximum power point tracking (MPPT) has a plurality of solar cell modules formed by electrically connecting multiple solar cells, and a power conversion and transmission unit electrically connected with two power output terminals of the solar cell module. Each of the solar cells has a solar chip having two DC power output terminals and an MPPT unit having two power input terminals electrically connected with the two DC power output terminals, and two power output terminals. The solar generator performs MPPT associated with each solar cell, thereby ensuring the output power of the entire system a maximum power. When performing MPPT in a conventional inverter, maximum power of each solar cell is effectively acquired.

Abstract: An image-forming apparatus is provided which prevents irregularity of an image density and improves the life of heating elements. In a half of recording heads (a group of recording heads 22K2, 22K4, 22K6 not adjacent to each other), off time T2 is shortened at a timing of PWM renewal 1; in the other recording heads (22K1, 22K3, 22K5, another group of the recording heads not adjacent to each other) the off time T2 is not changed at the timing of PWM renewal 1 but is shortened at the timing of PWM renewal 2. As the result, in the region corresponding to the timing from PWM renewal 1 to PWM renewal 2, the amount of the ink droplets ejected from the nozzles of the recording heads 22K2, 22K4, 22K6 is decreased to decrease slightly invisibly the image density formed by the ink droplets ejected from the nozzles 22K2, 22K4, 22K6.

Abstract: A single-motor shredder has a housing, and multiple cutting rollers, a paper feeding mechanism and a motor mounted in the housing. A first gear set connects the cutting rollers with the motor and a second gear set connects the cutting rollers with the paper feeding mechanism. Only one motor is needed to drive the cutting rollers and the paper feeding mechanism. Therefore, the shredder is light and a manufacturing costs of the shredder are lowered. Moreover, the paper feeding mechanism separates a stack of paper into small piles to sequentially feed the stack of paper in small piles. Thus, the stack of paper does not jam the cutting rollersso improving lifetime of the shredder.

Abstract: A waterproof LED lamp has a lamp housing, a top lid, a base and a power contact assembly. The lamp housing has an LED circuit board mounted therein. The top lid is mounted on the lamp housing and above the LED circuit board. A lid seal ring is mounted between the top lid and the lamp housing to prevent moisture from entering the lamp housing. The base has multiple LED modules mounted therein and has a base seal ring mounted between the lamp housing and the base to prevent moisture from entering the lamp housing. A heat-conducting tube is mounted inside the lamp housing. A waterproof insulation layer sheathed on the heat-conducting tube and a gasket mounted between the base and the power contact assembly prevent moisture entering the lamp housing through the power contact assembly and the base. Accordingly, an overall waterproof effect can be achieved.

Abstract: Duplicate packet detection and discard employs hash values and time stamps of received packet data, wherein the hash value is employed as an index to a table, and if data at a table entry has a time stamp near a time of the packet data, a duplicate is determined.

Abstract: A burner system capable of inverting an optical disc has a control module, a burning module, a mechanical arm and an inverter. The control module controls the mechanical arm to grab the optical disc from a burner in the burning module and release the optical disc into the inverter. The optical disc passes through the inverter due to gravity, one side of the optical disc is tilted by the inverter so the optical disc is inverted. Therefore, the burner system automatically inverts the optical disc for double-sided data processing.

Abstract: A receptacle connector has a housing, an eSATA terminal set, a first USB terminal set and a second USB terminal set. The housing has a socket space and a tongue formed in the socket space. The eSATA terminal set has eSATA terminals mounted on the tongue. The first USB terminal set has multiple first USB terminals mounted on the tongue opposite to the eSATA terminals for USB 2.0 signal transmission. The second USB terminal set has multiple second USB terminals mounted on the tongue opposite to the eSATA terminals for USB 3.0 signal transmission. The receptacle connector capable of providing eSATA, USB 2.0 or USB 3.0 signal transmission has high applicability.

Abstract: A lamp assembly of LED string light has a lamp module, an inner housing, an outer housing, a lower shell and a lamp cover module. The lamp module has a circuit board and an LED bulb and a set of power lines mounted on the circuit board. The inner housing has two symmetrical and engaged inner cases and a space to receive the lamp module. The outer housing has two symmetrical outer cases assembled together and encloses the inner housing. The lower shell is sleeved around a bottom portion of the inner housing. The lower shell has a multi-step portion formed on a periphery thereof for the lamp cover module to sleeve on the lower shell. Given the aforementioned elements, the lamp assembly of LED string light is easily assembled and highly waterproof and dustproof.

Abstract: An automatic voltage-identifying power supply device has a control module, a voltage regulation circuit, a current load measuring circuit electrically connected with an external post-stage power-receiving device, a power supply circuit and a pre-stage power supply device. After the post-stage power-receiving device is electrically connected with the current load measuring circuit, the control module can control the voltage regulation circuit to output a test voltage signal to the post-stage power-receiving device so that the test voltage signal is altered according to a preset sequence (e.g. progressively increasing) and the current load measuring circuit measures a response current signal of the post-stage power-receiving device corresponding to the test voltage signal. When a variation of the response current signal or a power variation is stable, the control module sets up the stable test voltage signal as an input voltage to the post-stage power-receiving device.

Abstract: A well jet device for testing oil-gas wells comprises a body provided with bypass windows and an insert provided with a jet pump. The insert has channels and a mounting seat embodied therein, carrying a sealing unit with a channel for a cable and well instruments fixed thereto. An output channel communicates with an upstream cavity. A supporting sleeve, provided with bypass openings embodied in the wall of the sleeve and with a flange arranged in the lower part thereof, axially movable and spring-loaded with respect to the body, is arranged therein. A recess used for limiting the displacement of the sleeve flange and connected to the bypass windows is formed thereunder. In the lower position of the sleeve, channel for supplying active medium is linked with surrounding space through the bypass openings and windows, whereas in the top position thereof the windows are closed by the sleeve wall.

Abstract: The present invention provides a wheelchair armrest adjusting mechanism comprising a support unit having a horizontal support connected to a top of an upright support, and a plurality of locking units located one side of the horizontal support; wherein an armrest has a slide channel for engaging with the horizontal support, a stop hole for creating a passage to the slide channel in order to fit one of the locking units when the stop hole is aligned with the locking unit, and a control unit fitted in the stop hole for pushing against the locking unit. When the control unit is pushed and held, the armrest can be slid along the horizontal support to align with one of locking units; and when the control unit is released, the locking unit is pushed into the stop hole and thereby locks the armrest in place.

Abstract: A bread making method including: a cold sponge process where strong flour, dried yeast, yeast food, salt, an improver, and water are mixed, stirred at low speed, stirred at high speed, and then fermented at a temperature and relative humidity; a dough process in which the resulting mixture of the cold sponge process is mixed with strong flour, sugar, salt, dried milk, dried yeast, margarine, and water, and the to resulting mixture is given a floor time and then divided into pieces; a freezing storage process in which the dough is frozen, wrapped in plastic, and stored at a temperature of less than ?18 degrees C.; a thawing process in which the resulting dough pieces of the freezing process are thawed; and a second fermentation process in which each of the resulting dough pieces is molded and subjected to a second fermentation.

Abstract: An LED illuminator has a seat and multiple LED modules mounted on the seat. The seat has multiple chambers, each of which has two opposite sidewalls, a bottom, two through holes and an opening. The two through holes are respectively defined on the sidewalls and the opening is defined the bottom. The LED modules are respectively mounted on the sidewalls of the chambers on the seat and standing on the seat at an inclined angle to allow lights pass through the openings of the chambers. Therefore, each chamber has two light sources from two opposite sidewalls and the lights of the two lights source pass through the opening of the chamber. The LED illuminator provides a wide illuminating angle.

Abstract: A resonant circuit has two parallel resonant branches and one assistant inductor connecting the two resonant branches. Each resonant branch has a series capacitor and a series inductor connected in series. The other end of the series inductor is for connecting to a primary side of a transformer unit. The resonant circuit can provide two characteristic resonant frequencies fr and fm, so that a resonant power converter using the resonant circuit has an operating frequency fs that satisfies fs>fr or fm<fs<fr. The combination of the two resonant branches and the assistant inductor can reduce the frequency switch range of the resonant power converter within a specific voltage gain.

Abstract: An anchor for a rectangular tube employs a wedge assembly, whereby rotation of an adjustment bolt of the wedge assembly moves an upper and lower wedge member together, and the wedge engagement with a central wedge member causes said central wedge member to move toward engagement with the tube, thereby securing the tube within a base body. Clevis pins and corresponding key hole slots mount the wedge assembly to a base, while allowing easy removal of the wedge when desired.

Abstract: The bread making method includes cold sponge, dough, and second fermentation processes. For cold sponge, 18 to 19.5 parts strong flour, 0.18 to 0.21 parts dried yeast, 0.03 to 0.036 parts yeast food, 0.06 to 0.09 parts salt, 0.06 to 0.09 parts improver, and 10.2 to 11.4 parts water are mixed at a temperature, low speed stirred, high speed stirred, and fermented. In the dough process, the resulting mixture of the cold sponge process is mixed with 12 to 13.5 parts strong flour, 2.1 to 2.7 parts sugar, 0.45 to 0.54 parts salt, 0.9 to 20 1.5 parts dried milk, 0.09 to 0.15 parts dried yeast, 2.1 to 3 parts margarine, and 8.1 to 9.3 parts water, and the resulting mixture is given floor and bench time and divided into pieces. In the second fermentation process, the pieces are molded and fermented.

Abstract: An LED lamp has a base, a tubular conductor, a bulb and at least one LED. The base is metallic and has an electrical connector. The tubular conductor is filled with a fluid and mounted on the base and has a distal end and a proximal end. The bulb is pellucid and connected to the base. The at least one LED is mounted on the distal end of the tubular conductor and electrically connected to the connector of the base. The fluid in the tubular conductor may vaporize close to operating temperatures of the LED so transports heat away from the LED quickly and efficiently so allowing high power or multiple LEDs to be implemented, so improving brightness of the LED lamp and commercial applications.