Abstract: A mask device according to an embodiment of the present invention comprises: a mask cover having air suction openings for suctioning air; a mask body, which is coupled to the mask cover, has fan modules, fixed thereto, for causing air having flowed in through the air suction openings to flow, and has an air discharge opening for ejecting the air flowing by means of the fan modules and an air outlet for discharging the air to the outside; and a sealing part, which is separably coupled to the rear surface of the mask body, and has a first body coupling part supported by means of the upper part of the mask body and a second body coupling part supported by means of the lower part of the mask body.

Abstract: A mask device according to an embodiment of the present invention comprises: a mask cover, which has air suction ports, and has, mounted thereon, filters for filtering air flowing in through the air suction ports; a mask body, which is coupled to the rear of the mask cover, and has an air ejection port through which air having passed through the filters passes; fan modules, which each comprise a fan and a fan motor, are disposed between the mask body and the mask cover, and allow the air having passed through the filters to flow toward the air ejection port; and a control part, which controls the number of revolutions of the fan motors, and predicts information about the lifespan of the filters so as to provide the predicted information about the lifespan of the filters to a user.

Abstract: An end cap holder may include a base block and a holding block. The base block may be configured to provide an end cap, which may be at a nozzle of the gas cylinder, with a torque for combining/separating the end cap with/from the nozzle. An angle correction groove may be formed at a first surface of the base block oriented toward the end cap. The holding block may be rotatably receivable in the angle correction groove to hold the end cap. The holding block may selectively make point contact with the base block to transmit the torque of the base block to the end cap. Thus, the holding block may accurately hold the end cap tilted to a vertical axis or a horizontal axis.

Abstract: The present invention relates to a blower, the blower according to an embodiment of the present invention comprising: a lower case having a suction hole formed therein through which air is introduced; an upper case arranged on the upper side of the lower case and having a discharge hole formed therein through which air is discharged; and a fan arranged in the lower case and including a plurality of blades. Each of the plurality of blades includes a plurality of airfoils respectively extending along different camber lines from one another, and a leading edge of connecting the leading ends of the plurality of airfoils. Entrance angles formed by the respective camber lines of the plurality of airfoils and the rotation directions of the blades are different from one another. Thus, due to the curved shape of the leading edge and the design of a recessed notch, a flow separating from the leading edge is reduced, and thus, there is an advantage in that air volume performance is improved.

Abstract: A blower includes a first extension having a first discharge port formed in a first wall, a second extension having a second discharge port formed in a second wall facing and spaced apart from the first wall, a fan provided below the first and second extensions to guide air toward each of the first tower and the second tower, a first gate provided inside the first tower or protruding from the first wall, a second gate provided inside the second tower or protruding from the second wall, a first guide motor to change a position of the first gate, and a second guide motor to change a position of the second gate.

Abstract: A blower is disclosed. The blower of the present disclosure comprises: a fan generating flow of air; a lower body providing an internal space in which the fan is installed, and having a suction hole through which air passes; an upper body being an upper body, which is installed over the lower body and forms a channel that communicates with the internal space of the lower body, and having a space formed through the upper body in a front-rear direction; a slit formed to pass through the upper body and discharging air flowing through the channel of the upper body to an outside of the upper body; and a vane or a door movably installed inside the upper body, and adjusting a flow direction of the air passing through the slit.

Abstract: A gas supply apparatus includes: a mounting portion installed on a cabinet; a gas supply portion installed on the mounting portion so as to be raisable and lowerable; and a gas container fixing portion fixing a gas container to the gas supply portion, wherein the gas supply portion includes a compressed gas association (CGA) fastening module that is installed on the mounting portion and is detachable from the gas container, and the CGA fastening module includes: a case; an end cap housing rotatably installed on the case; a CGA connector housing installed on the case so as to be disposed adjacent to the end cap housing; a gasket detection sensor installed on a sensor installation mount of the case and disposed under the CGA connector housing; and a power transmission portion spaced apart from the end cap housing and connected to the end cap housing and the CGA connector housing.

Abstract: A gas supply apparatus includes: a mounting portion installed on a cabinet; a gas supply portion installed on the mounting portion so as to be raisable and lowerable; and a gas container fixing portion fixing a gas container to the gas supply portion, wherein the gas supply portion includes a compressed gas association (CGA) fastening module that is installed on the mounting portion and is detachable from the gas container, and the CGA fastening module includes: a case; an end cap housing rotatably installed on the case; a CGA connector housing installed on the case so as to be disposed adjacent to the end cap housing; a gasket detection sensor installed on a sensor installation mount of the case and disposed under the CGA connector housing; and a power transmission portion spaced apart from the end cap housing and connected to the end cap housing and the CGA connector housing.

Abstract: A chemical supply system, includes: a chemical container receiving station configured to receive a chemical container, inspect chemical information of the chemical container and confirm the chemical information; a temporary storage configured to store the chemical container; a chemical supply device configured to supply a chemical in the chemical container to a place of use of the chemical; a first robot configured to transport the chemical container for which the chemical information is confirmed from the chemical container receiving station; and a second robot configured to carry the chemical container transported by the first robot into the chemical supply device..

Abstract: A gas cylinder automation system may include: a transfer path automatically supply gas in a gas cylinder brought into the gas cylinder automation system to a semiconductor process line; and a cylinder-type sensor checking whether the transfer path is abnormal by moving along the transfer path, wherein the cylinder-type sensor includes: a cylinder head including an end cap fastening member and an end cap coupled to the end cap fastening member and having a first detecting sensor disposed on the end cap fastening member to detect one of a force or torque applied to the end cap and a cylinder body connected to the cylinder head and having a second detecting sensor including at least one of an acceleration sensor or an inclination sensor mounted thereon.

Abstract: An end cap holder may include a base block and a holding block. The base block may be configured to provide an end cap, which may be at a nozzle of the gas cylinder, with a torque for combining/separating the end cap with/from the nozzle. An angle correction groove may be formed at a first surface of the base block oriented toward the end cap. The holding block may be rotatably receivable in the angle correction groove to hold the end cap. The holding block may selectively make point contact with the base block to transmit the torque of the base block to the end cap. Thus, the holding block may accurately hold the end cap tilted to a vertical axis or a horizontal axis.

Abstract: A disk tray wherein the friction is reduced during the loading or unloading operation of a disk cartridge to thereby avoid the damage of the disk cartridge is disclosed. A guiding apparatus for guiding the disk cartridge is elastically provided on an upper portion of the main body of the disk tray to reduce a friction between the upper portion of the main body and the disk cartridge which occurs during an insertion or ejection of the disk cartridge. The guiding apparatus is rotatable due to the friction with the disk cartridge. The guiding apparatus includes a roller rotatable due to a friction with the disk cartridge during the insertion or ejection of the disk cartridge, which is inserted in a receiving portion formed at an upper portion of the main body, a supporting bracket for rotatably supporting the roller on both sides at both ends of a rotation axis of the roller and a spring between the supporting bracket and an inner upper surface of the receiving portion for buffering a rotation of the roller.

Abstract: A disc player has a compact disc spindle assembly, mini-disc spindle assembly, and a pickup device on its base plate. A compact disc tray is connected with the base plate and a mini-disc tray is connected with the compact disc tray, respectively in a horizontally and vertically movable state. The disc player has a moving plate for driving the base plate and the compact disc tray. A mini-disc tray conveying device having a rack plate, a transfer gear, etc., is positioned between the compact disc tray and the mini-disc tray provided therein. Rack gears are formed on two opposite side walls of the mini-disc tray and the rack plate, and between the rack gears the transfer gear is interposed into which the fixed shaft projected upward from the lower surface of the compact disc tray is inserted. Thus, in loading a mini-disc cartridge or compact disc, the compact disc tray can be transferred horizontally together with the mini-disc tray provided therein.

Abstract: Disclosed is a disc player for reproducing a minidisc and a compact disc. The disc player includes a disc tray and a base plate. The disc tray has a compact disc and minidisc mounting parts placed on the upper surface thereof, cut portions to expose the discs to a pickup, a rack gear disposed on a lower edge of one side wall thereof and first cam grooves disposed on both side walls thereof. The base plate has a rectangular cut portion formed at a center thereof enabling the pickup to read out data from the discs and first shafts projected from both side walls thereof to be inserted into the first cam grooves of the tray. An outer chassis having first vertical cut portions is formed on both side walls to guide the elevating movement of the first shafts. A pickup feeding device is secured to a bottom surface of the base plate. A compact disc turntable and a minidisc turntable are secured respectively to a front center and a rear center of the rectangular cut portion of the base plate.