Abstract: A printer case assembly structure includes a print main body; a first case installed at a portion of the printer main body; a second case installed to surround the print main body except for an installing area of the first case and a cover installation opening part area; a latching sill part formed in the print main body and the first case to assemble the first case; a separation prevention part formed in the first and second cases to prevent the first case from being separated from the latching sill part; and an assembly hook unit formed in a hook structure in the printer main body and the second case to assemble the second case.

Abstract: A printer includes a main body casing part in which a storage part is formed; a printer head unit installed on the main body casing part; a cover part installed to be openable and closable on the main body casing part; a platen roller unit installed on the cover part to match with the printer head unit; and a hinge means in which a translational movement area and a rotational area are provided so that the cover part is installed on the main body casing part to be opened and closed through the linear movement and the rotational operation.

Abstract: A method for performing communication with a data device by a terminal supporting Bluetooth connection of a first profile and a second profile is provided, which includes transmitting a media access control (MAC) address of the terminal to the data device having established a first connection in the first profile with the terminal; disconnecting the first connection; receiving, from the data device, a request for a second connection in the second profile through the MAC address of the terminal; identifying the data device using pre-registered first information; and establishing the second connection without transmission of an acknowledgment for the second connection.

Abstract: Disclosed is a centrifugal filtration apparatus including a casing, a shaft, a stand tube, a rotor, and a stereoscopic filter. The shaft is vertically installed in the casing and guides a fluid to an upper end of the casing. The stand tube rotates about the shaft and sprays the fluid to the upper end of the casing. The rotor rotates along with the stand tube and forms a space in the casing to receive and filter the fluid sprayed from the stand tube. The stereoscopic filter includes a plate member and wire members. The plate member is rolled up around the stand tube and is installed in the rotor. The wire member is installed between layers of the plate member to secure a gap between the layers of the plate member and forms a filter layer to filter the fluid that flows between the layers of the plate member.

Abstract: A centrifuge able to discharge moisture through a separate moisture outlet by separating moisture from oil when spraying oil through a nozzle of a rotor, thereby removing moisture from oil without using a separate skimmer, and a purifier system including the same. The centrifuge includes a casing, a shat, a stand tube and a rotor. The casing has an oil inlet, an oil outlet, a moisture outlet and an air inlet. Moisture separated from oil sprayed through a nozzle of the rotor is discharged along with air out of the casing through the moisture outlet. An amount of air identical to the amount of the air discharged through the moisture outlet is introduced into the casing through the air inlet.

Abstract: A cover for a centrifugal filter, in which when water separated from oil is discharged through outlets provided in covers, can reduce the amount of oil leaking out with mixed gas and water. The cover constitutes the centrifugal filter by covering a rotor that rotates so as to filter impurities contained in oil by using a centrifugal force. The rotor is provided with at least one nozzle through which filtered oil is jetted. The cover includes: an inner cover configured to cover the rotor and including a first outlet and a first inlet; an outer cover provided outside the inner cover; and an oil leak prevention member provided in the first outlet.

Abstract: Disclosed is a centrifugal filtration apparatus including a casing, a shaft, a stand tube, a rotor, and a stereoscopic filter. The shaft is vertically installed in the casing and guides a fluid to an upper end of the casing. The stand tube rotates about the shaft and sprays the fluid to the upper end of the casing. The rotor rotates along with the stand tube and forms a space in the casing to receive and filter the fluid sprayed from the stand tube. The stereoscopic filter includes a plate member and wire members. The plate member is rolled up around the stand tube and is installed in the rotor. The wire member is installed between layers of the plate member to secure a gap between the layers of the plate member and forms a filter layer to filter the fluid that flows between the layers of the plate member.

Abstract: The present invention relates to a cover for a centrifugal filter, and is intended to propose a cover for a centrifugal filter, in which when water separated from oil is discharged through outlets provided in covers, the cover for the centrifugal filter can reduce the amount of oil leaking out with mixed gas and water. According to the present invention, there is provided a cover for a centrifugal filter, the cover constituting the centrifugal filter by covering a rotor that rotates so as to filter impurities contained in oil by using a centrifugal force, the rotor being provided with at least one nozzle through which filtered oil is jetted, the cover including: an inner cover configured to cover the rotor, the inner cover including a first outlet and a first inlet; an outer cover provided outside the inner cover; and an oil leak prevention member provided in the first outlet.

Abstract: The present invention provides a hybrid centrifugal filter including: a casing having a fluid inlet and a fluid outlet; a shaft vertically disposed in the casing and guiding fluid, which flows inside through the fluid inlet, into the casing; a stand tube being rotatable about the shaft and injecting fluid flowing in the casing through the shaft; a rotor disposed in the casing to form a space for filtering the fluid injected from the stand tube by rotating with the stand tube, and having nozzles injecting the filtered fluid into the casing; and a filtering unit elongated in a longitudinal direction of the shaft, disposed in the rotor to divide an inside of the rotor into an upper space and a lower space, and having a plurality of fluid holes for guiding the fluid injected in the upper space from the stand tube into the lower space.

Abstract: In one aspect of the present disclosure, an apparatus for protecting a paper skew of a printer comprises a printer head unit comprising a support shaft installed on a support frame and a thermal printer head installed on the support frame to print printing paper, a platen roller unit comprising a roller frame and a platen roller, and paper guides formed at both sides of the support shaft.

Abstract: In one aspect of the present disclosure, a power conversion apparatus comprises a power motor and a power converter configured to selectively convert rotation power of the power motor into a gear train 340 for transferring and a gear train for cutting, respectively, depending on a rotation direction of the power motor. The power converter comprises a sun gear configured to receive power from the power motor, a planetary gear configured to receive a rotating force while being engaged with the sun gear and to selectively couple with the gear train for cutting and the gear train for transferring, respectively, a rotating link configured to constrain a position of the sun gear, and a pressing means configured increase an adhesion between the sun gear and the rotating link.

Abstract: A centrifuge able to discharge moisture through a separate moisture outlet by separating moisture from oil when spraying oil through a nozzle of a rotor, thereby removing moisture from oil without using a separate skimmer, and a purifier system including the same. The centrifuge includes a casing, a shat, a stand tube and a rotor. The casing has an oil inlet, an oil outlet, a moisture outlet and an air inlet. Moisture separated from oil sprayed through a nozzle of the rotor is discharged along with air out of the casing through the moisture outlet. An amount of air identical to the amount of the air discharged through the moisture outlet is introduced into the casing through the air inlet.

Abstract: Disclosed herein is a centrifugal filter. The centrifugal filter includes a shaft, a rotor housing which rotates around the shaft and has filter paper on the inner side surface thereof, a spindle tube which rotates along with the rotor housing around the shaft and discharges the fluid from the shaft into the rotor housing, and a separation film which separates an internal space of the rotor housing into upper and lower portions so that impurities that are removed from the fluid by means of centrifugal force are deposited in the upper portion of the internal space while filtered fluid flows into the lower portion of the internal space. A dispersing means is provided on the spindle tube to make a cross-sectional shape of the fluid discharged from the spindle tube into the rotor housing be an elongated shape so that the fluid is widely dispersed into the rotor housing.

Abstract: Disclosed herein is a centrifugal filter. The centrifugal filter includes a shaft, a rotor housing which rotates around the shaft and has filter paper on the inner side surface thereof, a spindle tube which rotates along with the rotor housing around the shaft and discharges the fluid from the shaft into the rotor housing, and a separation film which separates an internal space of the rotor housing into upper and lower portions so that impurities that are removed from the fluid by means of centrifugal force are deposited in the upper portion of the internal space while filtered fluid flows into the lower portion of the internal space. A dispersing means is provided on the spindle tube to make a cross-sectional shape of the fluid discharged from the spindle tube into the rotor housing be an elongated shape so that the fluid is widely dispersed into the rotor housing.