Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1994-10-31
1996-03-05
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9912, G11B 1708
Patent
active
054972817
ABSTRACT:
A disk pack is clamped between an external flange adjacent one end of a hub and a ring clamp adjacent the other end of the hub. The hub terminates in a tubular section at the location of the ring clamp. The tubular section has substantially cylindrical internal and external surfaces. The ring clamp has a central opening defined by a wall in the ring clamp. The wall of the central opening of the ring clamp is a sliding fit over the substantially cylindrical external surface of the tubular section of the hub. The periphery of a circular expander wedge has an interference fit engagement within the substantially cylindrical internal surface of the tubular hub section. When the circular expander wedge is in place in the tubular section of the hub the tubular section is expanded. The substantially cylindrical external surface of the tubular section is compressed against the wall of the central opening of the ring clamp. The radial pressure or force is maintained by the presence of the circular expander wedge which, in the best mode for practicing the invention, remains in place. The radial pressure is uniformly circumferentially distributed around the circular wedge and is correspondingly uniformly applied to the ring clamp to frictionally secure the ring clamp to the hub.
REFERENCES:
patent: 4683505 (1987-07-01), Schmidt et al.
patent: 4791624 (1988-12-01), Stinesen
patent: 4918545 (1990-04-01), Scheffel
patent: 5006942 (1991-04-01), Brooks et al.
patent: 5101306 (1992-03-01), Johnson
patent: 5367418 (1994-11-01), Chessman et al.
Jewell Robert W.
Peter Gary M.
Hewlett--Packard Company
Oberheim E. F.
Wolff John H.
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