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 loose type pneumatic valve and a loose type pneumatic valve module, the loose type pneumatic valve including a valve body including a pneumatic passage therein; a valve head on the valve body, the valve head being coupleable with an actuator; a stem on the valve head, the stem being configured to open and close the pneumatic passage; and at least one alignment socket on the valve head, the at least one alignment socket being configured to align the valve head with the actuator.

Abstract: A loose type pneumatic valve and a loose type pneumatic valve module, the loose type pneumatic valve including a valve body including a pneumatic passage therein; a valve head on the valve body, the valve head being coupleable with an actuator; a stem on the valve head, the stem being configured to open and close the pneumatic passage; and at least one alignment socket on the valve head, the at least one alignment socket being configured to align the valve head with the actuator.

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 provides a combined system of mirror and mobile computer or communication device. In one embodiment of the invention, a portable computer comprises a top unit comprising a visual display and a base unit comprising a plurality of key buttons, a mouse, and other peripheral devices. The base unit is coupled to the top unit, and the top unit has a mirror attached to its exterior surface. The top unit may comprise a recess area or pocket on its exterior surface to hold a mirror in place and may comprise a cover or lid to protect the mirror. The mirror may be also disengageably attached to the top unit of the computer using a detachable mechanism. In another embodiment of the invention, the mirror is installed on the base unit of the portable computer so that the mirror is exposed and available for use when a user opens the computer, and covered when the user closes the computer.

Abstract: The present invention provides a combined system of mirror and mobile computer or communication device. In one embodiment of the invention, a portable computer comprises a top unit comprising a visual display and a base unit comprising a plurality of key buttons, a mouse, and other peripheral devices. The base unit is coupled to the top unit, and the top unit has a mirror attached to its exterior surface. The top unit may comprise a recess area or pocket on its exterior surface to hold a mirror in place and may comprise a cover or lid to protect the mirror. The mirror may be also disengageably attached to the top unit of the computer using a detachable mechanism. In another embodiment of the invention, the mirror is installed on the base unit of the portable computer so that the mirror is exposed and available for use when a user opens the computer, and covered when the user closes the computer.