Abstract: An air inlet for a two-stage dust collecting machine is formed in an air-pipe housing in a two stage dust collecting machine, and the air inlet is an rectangular shape formed in the annular wall of the air-pipe housing in the tangent direction. Further, a rectangular pipe is provided to extend out from the rectangular inlet, a circular pipe extends out from the rectangular pipe, and a current guiding member extends inward from the rectangular inlet. Therefore, sucked-in air is guided through the rectangular pipe with a comparative large space to flow through the current guiding member to become a helical current moving along the inner surface of the air-pipe housing, so sucked-in air flows smoothly in the machine, upgrading the two-stage dust collecting function of the machine.

Abstract: A wooden debris compressor includes a storing tank, and a poking device under the storing tank provided with plural poking rods fixed spaced apart in a definite angle. Then alternate back-and-forth rotation of the poking rods controls the volume of wooden debris falling down, and at the same time ax-shaped knives at outer ends of the poking rods rotates also back and forth alternately to break bridged conditions of wooden debris to let wooden debris smoothly fall down through a feeding hole. Then a cutting device with a cutter is provided on a material room of a feeding device to cut wooden debris in bridged conditions in an upper portion of the material room to let it fall down in a lower portion. Then the compressor can carry out compressing operation continuously and smoothly.

Abstract: An oil gas filtering device includes a housing having a barrel, The interior of the barrel is partitioned into a front and a rear air chamber by a wind shade. The barrel has its front upper sidewall bored with a wind intake. External oil gas is sucked in the front air chamber through the wind intake to be turned and swirled to have oil stain separated out and guided out through a guiding vent. Then, the oil gas in the wind shade is exhausted out by a turbine blade to get in the rear air chamber to be turned and swirled for a second time to have more oil stain separated out and exhausted out through the other guiding vent. Finally, the oil gas with little stain is filtered by a filtering member to become clean air.

Abstract: A positioning device for the dust-collecting bag of a dust-collecting machine includes a wind-exhausting box having its annular wall bored with an annular engaging groove and plural positioning members. Each positioning member is formed with a combining portion secured on the annular wall at the inner side of the annular engaging groove. The combining portion has one end extending and bent to form a clamping portion having its inner side formed with an arc-shaped projection to be engaged with the annular engaging groove of the annular wall. The clamping portion has its lower end extending outward obliquely and forming a pull member. When a dust-collecting bag is fitted around the annular wall, its opening portion can be elastically clamped by the clamping portions of and closely engaged in the annular engaging groove of the annular wall.

Abstract: A dry spray device includes a base, an air-extracting device, a wind force indicator, a first filter, a second filter, an isolating device and a work frame. The isolating device has a spray space for placing a work to be sprayed with paint, and waste gas and paint odor produced during spraying in the spray space in the isolating device is sucked into an interior space in the base by a motor driving a rotary fan in a wind housing fixed on the base to be filtered by the first filter and then through the second filter to become clean air to be exhausted out into open air. As the second filter is arranged in a V-shape in the interior space of the base so that the base can be made compact to let the whole size of the device occupy only a small space.

Abstract: A tabletop wood-waste-collecting machine includes a support frame, a machine base, a guide shade, a work faceplate and a dust-collecting unit. The machine base has its opposite upper side bored with plural transverse assistant guide grooves and its central portion bored with a longitudinal lower main guide groove communicating with a connecting opening in the front center. The guide shade covered on the lower main guide groove is formed with an upper guide groove. The work faceplate fixed on the topside of the machine base is bored with numerous wind-sucking vents. When the dust-collecting unit is started to operate, every wind-sucking vent of the work faceplate and the wind-sucking space in the machine base will receive a balanced suction force to let the wood waste produced completely sucked out.

Abstract: A wooden debris compressor includes a storing tank, and a poking device under the storing tank provided with plural poking rods fixed spaced apart in a definite angle. Then alternate back-and-forth rotation of the poking rods controls the volume of wooden debris falling down, and at the same time ax-shaped knives at outer ends of the poking rods rotates also back and forth alternately to break bridged conditions of wooden debris to let wooden debris smoothly fall down through a feeding hole. Then a cutting device with a cutter is provided on a material room of a feeding device to cut wooden debris in bridged conditions in an upper portion of the material room to let it fall down in a lower portion. Then the compressor can carry out compressing operation continuously and smoothly.

Abstract: A method of repairing opaque defects on a photolithography mask avoids damage to the mask substrate while providing improved repair results. The chrome mask pattern is first covered with a layer of carbon, following which the entire mask is covered with a layer of photoresist. Portions of the photoresist are then etched away to exposed the defect, while other portions remain covering the carbon. The defect is etched away while the carbon protects the adjacent areas of chrome mask. Following removal of the defect, the remaining areas of photoresist and carbon are then removed.

Abstract: A dust collector with an invertible wind exhausting case includes a wind exhausting case consisting of an upper and lower cover, which is respectively provided with two threaded holes of the same size in two lateral sidewalls. Two bolts combine tightly the lower cover with each of two upper horizontal tubes of two upper side frames of a platform truck, by screwing the threaded holes. The threaded holes of the upper cover are sealed up with bolts. In case the position of the fan motor and the sucking tube vase is needed to be inverted upside down, it is enough to screw loose the seal bolts of the platform truck and those of the upper cover and then the wind exhausting case can be inverted upside down and then seal bolts are screwed tight again. Thus the inverting work of the invention is much more simplified than a conventional one.

Abstract: A method for controlling an electronic device from a distance, the electronic device having a first identifying number corresponding to a set of commands for controlling the electronic device, the electronic device further being connected to a command controller which is connected to a command server via a network. The method includes: (1) storing the set of commands in the command server; (2) transmitting a first command to the command server by the command controller; (3) transmitting a second command corresponding to the first command by the command server to the command controller; and (4) controlling the electronic device by the command controller by the second command.

Abstract: A new sequence and chemical composition for cleaning the surface of a halftone shift masks that use MoSiON as shifter material is provided. For purposes of repair or rework, the pellicle is removed from the mask so that the mask can be accessed. After the rework or repair has been completed, a new clean process is performed, for the new clean process the sequence of steps that is conventionally performed has been modified. After the new clean process has been completed, the pellicle is reinstalled over the surface of the mask.

Abstract: A portable music player includes an external memory connector for connecting to a removable memory device containing digital music files, a user interface operable to allow a user to select and access the digital music files stored in the removable memory device, a decoder for converting selected digital music files into audio signals, and an audio output port for outputting the audio signals.

Abstract: A wireless communication device includes a housing, an antenna, and a transceiver for transmitting and receiving wireless signals through the antenna. The wireless communication device also includes a first hinge connecting the antenna to the housing for allowing the antenna to rotate about a first axis with respect to the housing, a first motor for rotating the antenna about the first axis with respect to the housing, and a control circuit for controlling the first motor to rotate the antenna for scanning reception of wireless signals as the antenna is rotated at different angles.

Abstract: A status display apparatus for displaying conditions of a port is provided. The status display apparatus includes M display elements and a mask, wherein M≧2. Each display element corresponds to one of the conditions. The mask includes a first transparent portion of alphanumeric shape and (M−1) second transparent portions. The first transparent portion corresponds to one display element of the M display elements and the rest are (M−1) display elements. Each second transparent portion corresponds to one of the (M−1) display elements. The alphanumeric shape represents an identification code of the port, and the condition of the corresponding display element represents the connection status of the port. The (M−1) second transparent portions are arranged, in a geometry pattern, around the first transparent portion.