Back to results
US 4,229,774 AGranted
Self-adapting flow restrictors
AssigneeInternational Business Machines Corporation
InventorsDonovan M. Janssen, Anton J. Radman, Jr., William S. Seaward
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeInternational Business Machines Corporation
InventorsDonovan M. Janssen, Anton J. Radman, Jr., William S. Seaward
Estimating the term…
A record storage apparatus consisting of a stack of co-rotating spaced apart flexible record storage disks are stabilized by circumferentially uniform radially outwardly flowing air under a quiescent operating condition. The record storage disks are normally in a parallel relationship. To form a transducing access opening, the disks are axially partially moved to create an enlarged interstice between two of the record storage disks for enabling a transducer to reach a recording surface on one of the two record storage disks. Disks adjacent to such access openings come closer together but should not touch. To avoid the touching and maintain stability, air flow between such more closely spaced disks is automatically adjusted as the disks approach each other.
The method of operating a record storage apparatus having a plurality of axially spaced apart flexible storage disks with somewhat uniform axial interstices therebetween with transducer access being achieved by axially enlarging one of said axial interstices,
Record storage apparatus having a plurality of axially spaced apart flexible record storage disks mounted on a spindle for corotation, said spindle having a plurality of radial air passageways aligned with spaces between said disks, respectively, such that air flows from said spindle radially past said disks to stabilize same during said corotation,
Dependencies are inferred from the claim text.