Abstract: A cutting blade has two ends and two sides and includes a mounting hole mounted on a front housing of a brush cutter; a convex member on a central portion of either side and having two notches at two ends respectively and an intermediate, curved cutting edge; and two cutting edges on either side with the convex member disposed between, each cutting edge having a first end terminated at the notch and a second end terminated at either end. Two cutting edges of different sides with the mounting hole disposed between comprise a plurality of groups of an outward inclined cutting member and a cavity. The other two cutting edges of different sides with the mounting hole disposed between comprise a plurality of groups of an inward inclined cutting member and a recess.

Abstract: A cutting blade has two ends and two sides and includes a mounting hole mounted on a front housing of a brush cutter; a convex member on a central portion of either side and having two notches at two ends respectively and an intermediate, curved cutting edge; and two cutting edges on either side with the convex member disposed between, each cutting edge having a first end terminated at the notch and a second end terminated at either end. Two cutting edges of different sides with the mounting hole disposed between comprise a plurality of groups of an outward inclined cutting member and a cavity. The other two cutting edges of different sides with the mounting hole disposed between comprise a plurality of groups of an inward inclined cutting member and a recess.

Abstract: A rectangular blade of a string trimmer is provided. The rectangular blade includes two straight cutting edges, each straight cutting edge including a plurality of cuts which can be either V-shaped or U-shaped. In other embodiments, the blade has a shape different from the rectangle.

Abstract: An electrical treatment probe for caval sphincter includes: a head portion with a probe-head internal connecting tube connected to the rear of the head portion; a middle portion including a hollow middle-section tube with a first internal connecting tube and a second internal connecting tube disposed at the front and rear of the middle-section tube respectively; a tail portion including a hollow probe-tail tube with a probe-tail internal connecting tube disposed at the front of the probe-tail tube; two conductive rings sheathed on the probe-head internal connecting tube and the first internal connecting tube, and the second internal connecting tube and the probe-tail internal connecting tube respectively; a conductive wire module including first and second conductive wires which are pressed by the conductive rings to produce a contacting and positioning effect. Thus, an electrical treatment probe casing is formed by the aforementioned elements and filled with a filler.

Abstract: A video conference system built in an internet protocol (IP) network is provided. The system has: a multimedia capturing unit configured to photograph and output a first video signal; a DECT telephone configured to receive sounds and output a first audio signal; and a video conference terminal apparatus, including: an audio processing unit is an audio codec; a video processing unit is an video codec; and a network processing unit for transmitting a first network packet consisting of first audio/video streams generated by the audio/video processing units to the IP network, wherein the network processing unit receives a second network packet consisting of second audio/video streams from the IP network, wherein the second audio/video streams are decoded by the audio/video processing units, respectively, to generate second audio/video signals, which are displayed on the DECT telephone and a display apparatus, respectively.

Abstract: The bass drum pedal assembly includes a first connector, mounted on a shaft driven by a drum pedal; a second connector, engaging with the first connector, and coupled to a universal joint which links a connecting rod; and a positioning mechanism, comprising a central positioning member, an elastic member and a pin. The elastic member is put around the central positioning member to make the central positioning member elastically slidably disposed in a central hole of the first connector. The pin is inserted into a through hole at a lateral side of the first connector to press the central positioning member and the elastic member so that the central positioning member is elastically inserted in central holes of the first connector and the second connector.

Abstract: A video conference system built in an internet protocol (IP) network is provided. The system has: a multimedia capturing unit configured to photograph and output a first video signal; a DECT telephone configured to receive sounds and output a first audio signal; and a video conference terminal apparatus, including: an audio processing unit is an audio codec; a video processing unit is an video codec; and a network processing unit for transmitting a first network packet consisting of first audio/video streams generated by the audio/video processing units to the IP network, wherein the network processing unit receives a second network packet consisting of second audio/video streams from the IP network, wherein the second audio/video streams are decoded by the audio/video processing units, respectively, to generate second audio/video signals, which are displayed on the DECT telephone and a display apparatus, respectively.

Abstract: The bass drum pedal assembly includes a first connector, mounted on a shaft driven by a drum pedal; a second connector, engaging with the first connector, and coupled to a universal joint which links a connecting rod; and a positioning mechanism, comprising a central positioning member, an elastic member and a pin. The elastic member is put around the central positioning member to make the central positioning member elastically slidably disposed in a central hole of the first connector. The pin is inserted into a through hole at a lateral side of the first connector to press the central positioning member and the elastic member so that the central positioning member is elastically inserted in central holes of the first connector and the second connector.

Abstract: A power management method for a portable computer system is disclosed. The portable computer system includes a plurality of power storage devices utilized for storing power and outputting a discharge current to the portable computer system. The power management method includes receiving a power and generating a corresponding charge current for charging a power storage device of the plurality of power storage devices, and comparing the discharge current and the charge current and adjusting power consumption of the portable computer system accordingly.

Abstract: A fastening structure for a transmission rod of a drum hammer is disclosed and comprises: a transmission rod, which is connected to at least two pedals for transmitting power; two universal connectors, which are disposed two ends of the transmission rod respectively, each of the universal connectors has a female-connecting end, a female-connecting hole is disposed in the female-connecting end, an upper portion in the female-connecting hole has a plane, which corresponds to a through hole disposed in a lower portion of the female-connecting hole; two axes, an end of each axis has a plane; and two fixing structures, each fixing structure has a clamping member, which has an inner hole and a screw hole from the top of the clamping member through to the inner hole, a fixing column is disposed in the clamping member other than the screw hole; wherein the clamping member fastens the female-connecting end, a screw inserted in the screw hole is pressed on the periphery of the female-connecting end, the fixing column i

Abstract: A water-spraying positioning device of a windshield comprises a sleeve; a rear inner wall of the sleeve being threaded; a front end of the sleeve having a light transmitting hole; a laser indicator being installed within the sleeve; a front end of the laser indicator being installed with a light projection seat; laser beams from the light projection seat transmitting through the light transmitting hole; and the thread of the sleeve being screwed with an adjusting rod; an outer thread of the adjusting rod serving to screw to the rear end of the sleeve; a center portion at an rear end surface of the adjusting rod being axially protruded with an ejecting rod; and a center portion of the rear end surface of the ejecting rod being axially protruded with an axial rod; and the axial rod being coaxial with the laser beam.

Abstract: A device for connecting two drum pedals of a drum includes an outer tube, an inner rod and a resilient strip. The outer tube defines therein an axial hexagonal (tetragonal) hole. A first end of the outer tube forms a recess on a periphery thereof having a plurality of screw holes and a through hole defined from a circumference of the outer tube to the outer surface of the recess. The inner rod is received in the hexagonal hole of the outer tube and defines a cutout in an appropriate position of a circumference thereof. The resilient strip is received in the recess of the outer tube and abuts the inner rod. A first end of the resilient strip has a protrusion integrally extending from one end thereof to be received in the through hole of the outer tube and a second end of the resilient strip is retained by the cutout of the inner rod. With this arrangement, the device for connecting two drum pedals can prevent damage to the inner rod and separation from the outer tube.