Imation Corporation

Massachusetts Institute of Technology

Helen J Yoo

Emanuel Michael Sachs

Douglas R Plourde

Samuel M Allen

William R Qualls

John Eric Heinz

Curtis B Hause

Constantinos Hadjiloucas

Methods and apparatus for erasing magnetic tape are described. The tape to be erased is fed through an erasure unit that includes an array of magnetic elements. The array of magnetic elements includes a first set of magnetic elements and a second set of magnetic elements. The magnetic fields for the respective first and second sets of magnetic elements have opposite polarity, as seen by the tape as it feeds through the erasure unit. The fields seen by the tape as it feeds through the erasure unit decrease in intensity.

Erasure techniques for magnetic tape media

A winding flange guide ( ) is utilized to provide a better quality wind of a strand media. The guide ( ) has a first flange ( ) and a second flange ( ) which constrain the movement of the outer wraps of the tape pancake formed by the tape media. The winding flange guide ( ) is utilized in a servo writer ( ), tape cartridge ( ) and tape drive ( ).

Flange guide for improved tape winding

Parts made from powder use a material that originates from a salt to bind powder particles together. The salt may be provided dissolved in a solution, as molten salt, or as a dry powder. The figure is an electron micrograph of a cross section of a silver nitrate bound product with a skeleton of steel powder.

Metal and ceramic containing parts produced from powder using binders derived from salt

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Maplewood, MN, United States of America

Helen J Yoo