Wiping system for magnetic recording disks

Claim 1

A magnetic recording system, comprising: a flexible magnetic recording disk having generally planar faces; a permanent protective jacket for housing the disk for free rotation about a central axis normal to said generally planar faces, the jacket having opposed parallel interior sidewalls between which the disk rotates substantially equidistantly from the interior sidewalls; first deformable liner means fixed to at least one of the interior sidewalls of the jacket, the liner means having a first wrap formed therein to protrude from the interior sidewall of the jacket to which the liner is attached toward the opposite interior side wall of the jacket a distance more than one-half the distance between the interior sidewalls, the first warp forming an elongated ridge which extends across at least a portion of the adjacent planar face of the disk and is substantially non-symmetrically deformed by the disk to resiliently wipe against the effective recording area of the disk when the same is driven to rotate within the jacket.

Claim 16

A method for fabricating a magnetic recording system including a floppy-type magnetic recording disk having generally planar faces, a jacket for permanently containing the disk for free rotation therein about a central axis normal to said generally planar faces, the jacket having opposed interior sidewalls, comprising: forming a flat liner sheet to have a disk-like configuration with a generally circular periphery and a central circular aperture; servering the liner in a radial direction to form two opposed generally radial edges; separating the radial edges to form a gap therebetween while concurrently bending the flat liner for form at least one warp in the liner, which warp has the shape of an elongated protruding ridge; affixing the lining sheet, with the warp formed therein, to one of the interior sidewalls of the jacket; and inserting the magnetic recording disk within the jacket for rotation such that the warp in the liner is deformed and resiliently presses against the adjacent face of the disk to wipe the same during rotation without the aid of auxillary means to bias the liner against the disk.

Claim 17

A method for fabricating a magnetic recording system including a floppy-type magnetic recording disk having generally planar faces, a jacket for permanently containing the disk for free rotation therein about a central axis normal to said generally planar faces, the jacket having opposed interior sidewalls, comprising: forming a flat liner sheet to have a disk-like configuration with a generally circular periphery and a central circular aperture; servering the liner in a radial direction to form two opposed generally radial edges; separating the radial edges to form a gap therebetween while concurrently bending the flat liner for form at least one warp in the liner, which warp has the shape of an elongated protruding ridge; affixing the lining sheet, with the warp formed therein, to one of the interior sidewalls of the jacket; and inserting the magnetic recording disk within the jacket for rotation such that the warp in the liner is deformed and resiliently presses against the adjacent face of the disk to wipe the same during rotation without the aid of auxillary means to bias the liner against the disk.

Claim 18

A method for fabricating a magnetic recording system including a floppy-type magnetic recording disk having generally planar faces, a jacket for permanently containing the disk for free rotation therein about a central axis normal to said generally planar faces, the jacket having opposed interior sidewalls, comprising: forming a flat liner sheet having an outer periphery and a central circular aperture; severing the liner from its central aperture to its outer periphery to form two opposed generally radial edges; separating the radial edges to form a gap therebetween while concurrently bending the flat liner to form at least one warp in the liner, which warp has the shape of an elongated protruding ridge and extends a sufficient distance from one of the interior sidewalls of the jacket to engage the face of the disk upon rotation thereof; affixing the lining sheet, with the warp formed therein, to the one interior sidewall of the jacket; and inserting the magnetic recording disk within the jacket for rotation such that the warp in the liner is deformed and resiliently presses against the adjacent face of the disk to wipe the same during rotation without the aid of auxillary means to bias the liner against the disk.

Claim 19

A method for fabricating a magnetic recording system including a floppy-type magnetic recording disk having generally planar faces, a jacket for permanently containing the disk for free rotation therein about a central axis normal to said generally planar faces, the jacket having opposed interior sidewalls, comprising: forming a flat liner sheet having an outer periphery and a central circular aperture; severing the liner from its central aperture to its outer periphery to form two opposed generally radial edges; separating the radial edges to form a gap therebetween while concurrently bending the flat liner to form at least one warp in the liner, which warp has the shape of an elongated protruding ridge and extends a sufficient distance from one of the interior sidewalls of the jacket to engage the face of the disk upon rotation thereof; affixing the lining sheet, with the warp formed therein, to the one interior sidewall of the jacket; and inserting the magnetic recording disk within the jacket for rotation such that the warp in the liner is deformed and resiliently presses against the adjacent face of the disk to wipe the same during rotation without the aid of auxillary means to bias the liner against the disk.