Abstract: [Object] To provide a sealing device, which is capable of keeping a higher sealability even when a fluid pressure is not applied and even just after starting of application of the fluid pressure, and which is capable of reducing a sliding resistance while keeping a sealability during operation where the fluid pressure is always applied thereto.

Abstract: A CD is mounted in a CD carrier and is inserted and ejected to/from a recording and reproducing mechanism of an optical disk drive for commonly performing both of a reproduction of the CD and recording and reproduction of an MO cartridge. The CD carrier has a holder to enclose the CD and a CD turntable which is enclosed in a holder and mounts the CD to an upper portion and attaches a lower portion to a spindle motor of the recording and reproducing mechanism. The CD turntable has a first hub for attaching the CD to an upper portion of a disk on which the CD is mounted and a second hub for attaching a lower portion of the disk to a spindle motor of the recording and reproducing mechanism.

Abstract: A container assembly including a bottle and cap arrangement is disclosed herein along with a cooperating arrangement for placing the cap arrangement in a predetermined closed position relative to the bottle. The assembly also includes a seal arrangement for maintaining a proper seal when the bottle is closed.