초록 ▼

A carrier is provided to hold a central apertured disk while magnetic material is plated simultaneously on the annular surfaces on both sides of the disk. The carrier contains a first opening substantially the same diameter as the disk and a second opening formed about a center line offset from the

A carrier is provided to hold a central apertured disk while magnetic material is plated simultaneously on the annular surfaces on both sides of the disk. The carrier contains a first opening substantially the same diameter as the disk and a second opening formed about a center line offset from the center line of the first opening so as to form a recess around a portion of the edge of the first opening. The disk is inserted into the first opening and recess to block the flow of plasma and impurities from one side of the disk to the other during the disk surface coating. A two-part plug is provided for placement in and sealing the center aperture of the disk. One plug part contains a spring or magnetic means for holding the two parts together within the disk. The plug includes a knob for handling, carrying and mounting or removing the disk from the carrier. A plurality of openings is provided in the carrier to allow both surfaces of a corresponding plurality of disks to be coated simultaneously with magnetic media with plugs sealing the central aperture of each disk during processing.

대표청구항 ▼

In combination, a circular flat computer disk having a central aperture and an aperture-closing plug, said plug comprising: first and second imperforate plug portions; each of said plug portions having a circular peripheral edge portion abutting said sealing-off entry to said disk central aperture a

In combination, a circular flat computer disk having a central aperture and an aperture-closing plug, said plug comprising: first and second imperforate plug portions; each of said plug portions having a circular peripheral edge portion abutting said sealing-off entry to said disk central aperture at opposite sides of said disk; means within at least one of said plug portions and extending within said disk central aperture for engaging the other of said plug portions for holding said plug portions together on opposite sides of said disk; and means on a surface of each of said plug portions outward of said disk central aperture for grasping said plug portions to insert and pull said plug portions from said disk central aperture.