Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: A bi-directional paper pickup mechanism includes a pickup roller, a fastening structure, an input shaft, a first ratchet element, a second ratchet element, an actuating unit, a first transmission rotor and a second transmission rotor. The pickup roller has an inner space. The fastening structure is disposed in the inner space. The input shaft is accommodated in the inner space, and one end of the input shaft is pivotally connected to the fastening structure. The first ratchet element is mounted around the input shaft. The second ratchet element is mounted around the one end of the input shaft. The actuating unit is fastened around a middle of the input shaft to synchronously rotate with the input shaft. The first transmission rotor is mounted around the one end of the input shaft. The second transmission rotor is mounted around the other end of the input shaft.

Abstract: A bi-directional paper pickup mechanism includes a pickup roller, a fastening structure, an input shaft, a first ratchet element, a second ratchet element, an actuating unit, a first transmission rotor and a second transmission rotor. The pickup roller has an inner space. The fastening structure is disposed in the inner space. The input shaft is accommodated in the inner space, and one end of the input shaft is pivotally connected to the fastening structure. The first ratchet element is mounted around the input shaft. The second ratchet element is mounted around the one end of the input shaft. The actuating unit is fastened around a middle of the input shaft to synchronously rotate with the input shaft. The first transmission rotor is mounted around the one end of the input shaft. The second transmission rotor is mounted around the other end of the input shaft.

Abstract: A correction structure arranged in a feeding path of a document processing device, comprising: a transmitting means consisted of at least a pair of roller sets which are arranged symmetrically on the two sides of the feeding path for transmitting the card evenly, a correcting means consisted of a platform movably arranged at the downstream to the roller set, a receptacle formed on the platform, an elastic object arranged in the receptacle for returning the platform to a predefined location, a back wall extended from the platform toward the feeding path, an opening formed on the back wall to let a card go through, and a friction pad arranged at the bottom of the opening to partly jam the opening, wherein the width of the friction pad is less than the width of the feeding path so the friction pad only contacts the center of the card while transmitting the card.

Abstract: A correction structure arranged in a feeding path of a document processing device, comprising: a transmitting means consisted of at least a pair of roller set which are arranged symmetrically on the two sides of the feeding path for transmitting the card evenly, a correcting means consisted of a platform movably arranged at the downstream to the roller set, a receptacle formed on the platform, a elastomer arranged in the receptacle for returning the platform to a predefined location, a back wall extended from the platform toward the feeding path, an opening formed on the back wall to let a card go through, and a friction pad arranged at the bottom of the opening to partly jam the opening, wherein the width of the friction pad is less than the width of the feeding path so the friction pad only contacts the center of the card while transmitting the card.

Abstract: A transmission device includes a pickup roller assembly, a feeding roller assembly including a feeding shaft, a paper-out roller assembly including a paper-out shaft, a driving motor, a one-way drive gear module, a first transmission gear module, a second transmission gear module and a one-way clutch. The first transmission gear module includes a plurality of transmission gears disposed to two ends of the feeding shaft and two ends of the paper-out shaft. The second transmission gear module is engaged with one of the transmission gears mounted around one end of the feeding shaft. The one-way clutch disposed between the feeding shaft and the paper-out shaft, includes a first clutch gear, a second clutch gear, a third one-way clutch gear disposed between the first clutch gear and the second clutch gear, and a compression spring disposed to one end of the second clutch gear.

Abstract: A water tap assembly for a one-hole sink, includes: a main body having a water passage, cold and hot water passages, a cold-water inlet and a hot-water inlet for fluidly in communication with the cold and hot water passages respectively, wherein each of the cold and hot water passages has one end portion connected fluidly and respectively to the water passage; a cold-water control valve mounted rotatably between the cold water passage and the water passage; and a hot-water control valve mounted rotatably between the hot water passage and the water passage. The main body further includes a connection pipe that is adapted to be connected with the one-hole sink and that defines the cold-water inlet and the hot-water inlet such that cold or hot water in the water passages can flow out to an exterior of the main body through a water outlet of the water passage.

Abstract: A driving device used in a paper separation mechanism includes an internal gear, an external gear sheathed around the internal gear, a shell of which an inner front face protrudes backward to form a hollow cylinder which the internal gear is sheathed around, an elastic element restrained between a front end of the internal gear and the inner front face of the shell, and a driving member rotatably on the rear of the shell. The driving device utilizes the cooperation of a guide block of the internal gear and a guide groove of spiral shape of the hollow cylinder, the cooperation of a locking arm of the shell and an outer ratchet of the external gear, the cooperation of a slope of the external gear and pushing blocks of the driving member to make a clockwise rotation angle of the driving member be greater than a counterclockwise rotation angle.

Abstract: A driving device used in a paper separation mechanism includes an internal gear, an external gear sheathed around the internal gear, a shell of which an inner front face protrudes backward to form a hollow cylinder which the internal gear is sheathed around, an elastic element restrained between a front end of the internal gear and the inner front face of the shell, and a driving member rotatably on the rear of the shell. The driving device utilizes the cooperation of a guide block of the internal gear and a guide groove of spiral shape of the hollow cylinder, the cooperation of a locking arm of the shell and an outer ratchet of the external gear, the cooperation of a slope of the external gear and pushing blocks of the driving member to make a clockwise rotation angle of the driving member be greater than a counterclockwise rotation angle.

Abstract: A transmission device for an automatic document feeder includes a driving gear set driven by a driving motor, a first swing arm equipped with a first driving roller set, a second swing arm equipped with a second driving roller set, and a one-way gear set driven by the driving gear set to keep transmitting rollers rotating in the same direction. The first swing arm is driven by the driving gear set and swingable between a first position and a second position to mesh the first driving roller set with a pickup device or an output device. The second swing arm is driven by the driving gear set and swingable between a third position and a fourth position to mesh the second driving roller set with the pickup device or the output device. When the first swing arm swings toward the first position, the second arm swings toward the fourth position, and when the first swing arm swings toward the second position, the second swing arm swings to the third position.

Abstract: A transmission device of automatic document feeder includes a transmission gear assembly, a pickup transmission gear assembly, a paper-feed transmission gear assembly, a correction transmission gear assembly, a pressure transmission gear assembly and a turn-over transmission gear assembly. The transmission gear assembly includes a transmission roller, a first drive gear and a second drive gear. The pickup transmission gear assembly includes a pickup drive gear, a pickup swing arm and a pickup auxiliary swing arm. The paper-feed transmission gear assembly driven by the transmission gear assembly includes a paper-feed reverse gear and a paper-feed swing arm. And the correction transmission gear assembly and the paper-feed transmission gear assembly rotate towards the same direction. The pressure transmission gear assembly includes a pressure swing arm and a pressure actuating gear. The turn-over transmission gear assembly is driven by the first drive gear of the transmission gear assembly.

Abstract: An automatic document feeder includes a paper transmitting path for guiding documents, a driving motor for providing driving torque, a pickup device disposed at the upstream of the paper transmitting path, an output device disposed at the downstream of the paper transmitting path and transmitting rollers disposed along the paper transmitting path for transmitting the documents, a first driving gear disposed between the pickup device and the output device, a transmitting gear swing arm equipped with a transmitting gear set and axially hinged with the first driving gear to swing according to the driving torque between a first position meshing the transmitting gear set with the pickup device and a second position idling the transmitting gear set, an actuator connected with the output device and a braking device disposed on the output device for locking the transmitting gear swing arm according to the position of the output device.

Abstract: A paper feeding mechanism includes a mechanical frame, a gear assembly, a paper supply tray, a pickup assembly, a paper pressing assembly and a stopper assembly. The gear assembly includes a drive gear and a transmission gear. The paper pressing assembly includes a paper pressing frame, a paper pressing tray, a gear shaft, at least one swing arm and an elastic element. The stopper assembly includes a blocking element and a connecting element. The drive gear drives the transmission gear and the gear shaft to rotate, the connecting element drives the blocking element to move downward to make the blocking element realize a paper blocking function, and the drive gear breaks away from the drive gear, the elastic element pushes against the paper pressing tray to move downward, the blocking element breaks away from the paper supply tray to raise up for making the paper blocking function disappeared.

Abstract: An automatic document feeder includes a paper transmitting path for guiding documents, a driving motor for providing driving torque, a pickup device disposed at the upstream of the paper transmitting path, an output device disposed at the downstream of the paper transmitting path and transmitting rollers disposed along the paper transmitting path for transmitting the documents, a first driving gear disposed between the pickup device and the output device, a transmitting gear swing arm equipped with a transmitting gear set and axially hinged with the first driving gear to swing according to the driving torque between a first position meshing the transmitting gear set with the pickup device and a second position idling the transmitting gear set, an actuator connected with the output device and a braking device disposed on the output device for locking the transmitting gear swing arm according to the position of the output device.

Abstract: A method for controlling light-emitting diode (LED) backlight modules applied in an electronic device is provided. The electronic device includes a first display and a second display. The second display includes at least two display areas. Each display area corresponds to one LED backlight module, and each display area displays option icons of an option type. The method includes: determining the file type of a file currently displayed on the first display and determining which of the option types the determined file type corresponds to; determining which of the at least two LED backlight modules the at least one determine option type corresponds to; and outputting control signals to turn on at least one of the determined LED backlight modules. A related electronic device is also provided.

Abstract: A transmission device for an automatic document feeder includes a driving gear set driven by a driving motor, a first swing arm equipped with a first driving roller set, a second swing arm equipped with a second driving roller set, and a one-way gear set driven by the driving gear set to keep transmitting rollers rotating in the same direction. The first swing arm is driven by the driving gear set and swingable between a first position and a second position to mesh the first driving roller set with a pickup device or an output device. The second swing arm is driven by the driving gear set and swingable between a third position and a fourth position to mesh the second driving roller set with the pickup device or the output device. When the first swing arm swings toward the first/second position, the second arm swings toward the fourth/third position.

Abstract: A paper transmitting mechanism mounted on the transmitting path which includes a driving wheel, a driving system drives the driving wheel, a pressure wheel, a pressure wheel adjusting unit, and a paper sensor settled upstream to the driving wheel and pressure wheel. The pressure wheel adjusting unit includes an elastomeric unit; one end of the elastomeric unit is connected to the axle of the pressure wheel, and the other end is connected to a linear driving device. When the paper sensor detects the paper is going to enter or leave the driving wheel, the paper sensor will send a signal for adjusting the clamping force between the driving wheel and the pressure wheel to make the clamping force and the friction between the driving wheel and the pressure wheel adjustable according to the position of the paper, so as to avoid the paper slipping or vibrating during transmitting.

Abstract: A paper transmitting mechanism mounted on the transmitting path which includes a driving wheel, a driving system drives the driving wheel, a pressure wheel, a pressure wheel adjusting unit, and a paper sensor settled upstream to the driving wheel and pressure wheel. The pressure wheel adjusting unit includes an elastomeric unit; one end of the elastomeric unit is connected to the axle of the pressure wheel, and the other end is connected to a linear driving device. When the paper sensor detects the paper is going to enter or leave the driving wheel, the paper sensor will send a signal for adjusting the clamping force between the driving wheel and the pressure wheel to make the clamping force and the friction between the driving wheel and the pressure wheel adjustable according to the position of the paper, so as to avoid the paper slipping or vibrating during transmitting.

Abstract: A storage box includes a box body defining a storage chamber and an access opening and having multiple first engagement portions at one side of the access opening, and a liftable lid, which includes multiple second engagement portions and is pivoted to the box body and biasable relative to the box body between a close position where the second engagement portions are disengaged from the first engagement portions and the liftable lid closes the access opening, and a lifted position where the second engagement portions are engaged with the first engagement portion and the liftable lid is kept away from the access opening to keep the storage chamber in an open status. Thus, the user does not need to hold the liftable lid in the lifted position with the other hand when using one hand to put things in the storage chamber of the box body.