Abstract: A welding smog disposing machine includes a depositing frame and a machine box. The machine box is positioned on the depositing frame combined with a contractible frame for receiving a different-sized automatic worktable therein. The machine box has its interior partitioned into a filtration chamber and an exhaust chamber communicating with each other. The exhaust chamber has its bottom bored with an air intake for embers to enter therethrough. After embers produced by the automatic worktable is pumped to the interior of the machine box, the exhaust chamber filtrates oily smog, filthy air and impurities and then the filtration chamber carries out filtration for a second time. Thus, the embers can be cleaned out and filtrated, and the air exhausted out is completely unpolluted, effectively maintaining good quality of air in a work environment.

Abstract: A dust collector with a function of secondary collection is composed of a bottom base, an air guiding box installed above the bottom base and bored with a suction hole and a dust collecting hole at its upper and bottom surface respectively, a guiding device set inside the air guiding box, a filtering bag fixed on the guiding device, and a dust bag sealed with the lower dust collecting hole of the air guiding box. In using, dust can be drawn in by a blower to enter the air-guiding box. By means of the guiding device, the particles with larger size are to directly drop down to the dust bag and the light or tiny ones are to be drawn through the guiding device to flow up to the filtering bag for being filtered, with a secondary filtration to prolong a service life of the filtering bag.

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

Abstract: A portable welding smog disposing machine includes a machine box formed with an accommodating space disposed at an intermediate portion with a filter plate set, which partitions the accommodating space into a front and a rear accommodating chamber. The front accommodating chamber has its topside bored with a through hole extending upward and its front side formed with an opening having a door plank pivotally assembled thereon. An ember obstruction device is fixed on the inner side of the door plank and received inside the front accommodating chamber. By so designing, the embers produced during electric welding will be pumped to directly drop into the ember obstruction device through the through hole to be collected therein so as to prevent the embers from getting into the machine box.

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 welding smog-disposing machine includes a machine box partitioned into an air pumping space and a filtration space by a separating plate, with the lower end of the air pumping space and the filtration space communicating with each other. The air pumping space has one side bored with an opening, and a collecting box is provided at a proper location under the air pumping space and the separating plate for receiving and collecting embers dropping down through the opening of the air pumping space for obstructing the embers from entering the machine box. The filtration space has a filtration chamber and an exhaust chamber, and the filtration chamber is assembled with a movable filter cloth device for filtrating the oil smog and impurities produced during electric welding, effectively maintaining air quality in a work environment.

Abstract: An oil fog separator includes a filtering chamber, a filtering device, and a gas-exhausting chamber. The filtering chamber communicates with the exhausting chamber by an air hole, having an accommodating space and a lower portion separated by an intermediate wall from the accommodating space and having an inlet for oil fog to enter. The filtering device is installed in the accommodating space, composed of a filter and a vibrating motor. Then the filter filters oil fog mixed in the air sucked in for the first time, and liquid oil produced is exhausted by the vibrating motor. Filtered oil fog by the filter is then sucked by a vane-wheel in the gas exhausting chamber, and then led in the odor treating device for filtering for the second time to become completely clean gas to be exhausted out in the air.

Abstract: The invention relates to a device for dynamically adjusting volume within communication apparatus. The communication apparatus includes a speaker and an amplifier electrically connected to the speaker. The device is configured in the communication apparatus and includes a distance sensing unit and a signal processing circuit. The distance sensing unit is used for sensing a distance between the communication apparatus and a user to obtain a distance data. The signal processing circuit is used for dynamically adjusting a gain of the amplifier according to the distance data. The amplifier amplifies an input signal by the gain and then outputs an output signal to the speaker. Therefore, the output volume of the communication apparatus can be dynamically adjusted instead of being manually adjusted.

Abstract: A dust bag positioning cylindrical member for a two-stage dust collecting machine is a cylindrical shape with an open upper end and an open lower end with a diameter a little less than that of a bag cylinder so that the dust bag positioning cylindrical member may be placed in and stabilize a dust bag previously placed in the bag cylinder. Thus the dust bag may not be blown to stick at the mouth of a first air exit during a second stage of dust collecting operation of the machine.

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 simple dust collector includes a housing, a base plate horizontally separating the interior of the housing to form a motor chamber for fix a motor to rotate a fan covered by a fan cover under the base plate. A sucking passageway and a wind-exhausting hole are formed under the fan cover, and a tube joint is connected with the sucking passageway connected to a dust tube. The plurality of wind outlets are formed in a lower section of the housing and sealed by an airy cloth ring to filter dust from wind. The housing has an opening in a lower side and the opening is fitted with a dust bag for dust carried by the wind generated by the fan from the passageway and swirled by centrifugal force caused by rotation of the fan to fall and be collected in the dust bag.

Abstract: A negative pressure table-top dust collecting machine includes a machine box formed with an interior space, an operation faceplate assembled on the machine box and bored with numerous wind-sucking vents, a fixing base disposed in the interior space of the machine box, a dust collecting unit fitted with the fixing base and provided with dust collecting bags, and a blower positioned in the interior space of the machine box. When the blower is started to operate, the air in the interior of the machine box is pumped out of the machine box, letting the interior of the machine box produce negative pressure. Simultaneously, through the dust collecting bags and the fixing base, each wind-sucking vent of the operation faceplate will produce a vacuum suction force to suck the dust produced during processing into the dust collecting bags to be gathered.

Abstract: A dust collector with an invertible wind exhausting case includes a wind exhausting case having 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 drying device for a wood-waste collecting machine includes a blower set on the base of the machine and a heating member connected between the blower and the conveying device of the machine. The blower has an air outlet connected with a windpipe, and the heating member is connected with one end of the windpipe, having a tubular member and a heating element in the tubular member. Between the other end of the heating member and a preset sidewall of the container of the conveying device is provided a pipe joint, for air sucked by the blower blown in the heating member to heat. Then heated air is blown through the air holes of the sidewall of the collecting chamber of the container of the conveying device to dry wood waste therein and then compressed in the compressing device of the machine to become tight solid blocks.

Abstract: A movable spray-painting stand includes a worktable provided with four casters and having a wind-exhausting device and a filtering device assembled thereon. The wind-exhausting device has an air inlet communicating with the wind outlet of the filtering device. A separating device is provided in front of the wind inlet of the filtering device to form a spray painting space. A collapsible work frame is pivotally assembled with the work table and positioned under the separating device, able to be positioned in the spray painting space after articles to be spray painted are placed on its upper plate. The spray painting stand can be moved around freely, and the exhaust and the odor of paint produced during spray painting can be filtered by the filtering device, conforming to environmental protection and ensuring workers' health.

Abstract: A dust-removing device for the dust-collecting tank of a dust-collecting machine includes a guide frame installed inside the dust collecting tank and having a central guide rod for a brush base to move up and down thereon. The brush base has its outer circumferential edge provided with numerous brushing bristles able to reach the folded grooves in the inner wall of the dust-collecting tank. A pull unit is provided with plural pulley bases for a pull rope to pass therethrough. Two handles are respectively fixed with two lines of the pull rope exposed to the outer side of the dust-collecting tank, and the pull rope has two ends fastened with the brush base. When the two handles are moved downward alternately and repeatedly, the brush base can be moved up and down to carry out cleaning of the dust-collecting tank.

Abstract: A dust-sucking arm of an air cleaning machine includes two flexible ducts respectively connected between two rigid ducts and between one rigid duct and the wind-guiding opening. Three pivotal bases are assembled at the outer sides of the rigid ducts and the flexible ducts. Two parallel connecting rod units are respectively and pivotally assembled between two adjacent pivotal bases. One connecting rod of each parallel connecting rod unit is fixed with the relative rigid duct to actuate the rigid duct to move. Two pressure cylinders are respectively and pivotally installed between a connecting duct and the relative pivotal base, supporting the connecting rod unit. Two locking members are respectively installed between one connecting rod and the pivotal base, locking the connecting rod to stop the connecting rod unit.

Abstract: A drying device for a wood-waste collecting machine includes a blower set on the base of the machine and a heating member connected between the blower and the conveying device of the machine. The blower has an air outlet connected with a windpipe, and the heating member is connected with one end of the windpipe, having a tubular member and a heating element in the tubular member. Between the other end of the heating member and a preset sidewall of the container of the conveying device is provided a pipe joint, for air sucked by the blower blown in the heating member to heat. Then heated air is blown through the air holes of the sidewall of the collecting chamber of the container of the conveying device to dry wood waste therein and then compressed in the compressing device of the machine to become tight solid blocks.

Abstract: A remote controller for a big-horsepower wood-waste collecting machine includes an electromagnetic valve, an IC panel and an infrared remote controller. The electromagnetic valve is set between a main power source and a machine motor for properly controlling to pass or cut off the power. The IC panel is properly linked with the electromagnetic valve and has an infrared receiving circuit for receiving a remote signal. The infrared remote controller, separated from the machine, has an infrared transmitting circuit to transmit a remote signal. The IC panel can receive the remote signal to command the electromagnetic valve to pass or cut off the power.