Iomega Corporation

Other

International Business Machines Corporation

Robert D Freeman

Randall C Bauck

David E Jones

Michael R Lyon

Paul D Losee

Anton J Radman

Stawomir P Kleczkowski

Roy Thornock

Peter Kleczkowski

Armando Jesus Argumedo

William W Chow

Merle Thowe

Brent Jenkins

Richard Howe

A device for coupling and aligning a rotatable disk with the motor used for rotating that disk is disclosed. The end of the motor drive shaft includes a drive spindle having a V shaped slot in its surface. This slot accepts an aligning pin which protrudes from the center of the disk. When the aligning pin is at the apex of the V slot, the disk to be rotated is concentric with the drive spindle. A drive pin, which is mounted eccentrically on the drive spindle, is in contact with a lip on the outer surface of the disk hub. Rotation of the drive spindle causes interference between the drive pin and the lip thereby imparting rotatational momentum to the disk as well as a centering force on the aligning pin.

Apparatus for coupling record disk to disk drive

A magnetic storage device comprising a rigid apertured cartridge containing a flexible magnetic disk and a Bernoulli surface is disclosed. The cartridge contains a reference surface which is integral with the Bernoulli surface and serves to align and flatten the Bernoulli surface when the cartridge is inserted into a disk drive. The cartridge is configured such that the flexible magnetic disk is maintained in operative association with the Bernoulli surface. The aperture of the cartridge serves as an entry point for the motor spindle and transducer of the disk drive. The cartridge is partially enclosed by a slidable shutter which protects the Bernoulli surface and flexible disk when the cartridge is not in use.

Bernoulli plate in cartridge

A device and process for stabilizing two coaxially joined flexible magnetic disks is disclosed. Two or more flexible magnetic disks are coaxially joined by a coaxially located spacer. One of the disks is juxtaposed to and rotated against a flat stable Bernoulli surface. A second disk spaced by the spacer from the first disk contains centrally located perforations into which air can flow. According to certain embodiments, a flexible interdisk wiper is positioned between the disks and aids in stabilization thereof. In other embodiments, top and bottom disk wipers are also included.

Wipers for pair of stabilized magnetic disks

A cartridge has a flexible pad which is disposed between a Bernoulli plate and a record disk when the cartridge is inserted into the disk drive. The flexible pad prevents ringing as the record disk is rotated against the Bernoulli plate. The cartridge has a slider which is opened when the cartridge is inserted into the drive to expose the record disk for rotation. This slider has a locking mechanism which can be opened only when the cartridge is properly inserted into the drive.

Record disk cartridge with flexible pad

A device and process for stabilizing two coaxially joined flexible magnetic disks is disclosed. Two or more flexible magnetic disks are coaxially joined by a coaxially located spacer. One of the disks is juxtaposed to and rotated against a flat stable Bernoulli surface. A second disk spaced by the spacer from the first disk contains centrally located perforations into which air can flow. When the disks are rotated at high speed air flows into the perforations and radially out from between the disks, thus forming an air cushion or air bearing between the disks. The apparatus and process thus provides two floppy disks stabilized by a single Bernoulli surface.

Plural magnetic disk assembly

A cleaning cartridge for a magnetic disk drive has a flexible cleaning pad on a wiper assembly which is rotatable in the base of the cartridge. A knob on the outside edge of the cartridge is moved back and forth to rotate the wiper assembly by a cable attached to the hub. As the assembly rotates, a cam surface forces the flexible pad into engagement with the head to clean it.

Head cleaning cartridge for magnetic disk drive

A cartridge has a flexible pad which is disposed between a Bernoulli plate and a magnetic disk when the cartridge is inserted into the disk drive. The flexible pad prevents ringing as the disk is rotated against the Bernoulli plate. The cartridge has a slider which is opened when the cartridge is inserted into the drive to expose the magnetic disk for rotation. This slider has a locking mechanism which can be opened only when the cartridge is properly inserted into the drive.

Magnetic disk cartridge having improved locking mechanism and ringing pad

Ferrite read and write modules of a magnetic head assembly that are aligned and positioned within a nonferrite housing are clamped by a leaf spring between the walls of the housing. The leaf spring compensates for thermal mismatch between the ferrite modules and the housing, and compensates for stress fluctuation that occurs with temperature change. The clamping force of the leaf spring is precisely controlled.

Growing community of inventors

Roy, UT, United States of America

Robert D Freeman