Browse Prior Art Database

Cleaning Magnetic Tape

IP.com Disclosure Number: IPCOM000090180D
Original Publication Date: 1969-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Grebe, KR: AUTHOR

Abstract

Damage to recording heads caused by abrasive particles clinging to magnetic tape is prevented by this method of cleaning the tape surface while it is in use. Dust and ferrite particles 1 which cling to tape T by electrostatic attraction are loosened by exposing the tape to neutralizing corona discharges 2. These are positioned opposite air ports 3 in the tape guiding channel of head support structure 4. Air jets emerging through ports 3, aided by suction in the adjoining vacuum chambers 5, remove these loosened particles from tape T before they can damage the head 6, irrespective of the direction in which the tape is traveling. The same method can be applied to the cleaning of other magnetic recording surfaces.

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Cleaning Magnetic Tape

Damage to recording heads caused by abrasive particles clinging to magnetic tape is prevented by this method of cleaning the tape surface while it is in use. Dust and ferrite particles 1 which cling to tape T by electrostatic attraction are loosened by exposing the tape to neutralizing corona discharges 2. These are positioned opposite air ports 3 in the tape guiding channel of head support structure 4. Air jets emerging through ports 3, aided by suction in the adjoining vacuum chambers 5, remove these loosened particles from tape T before they can damage the head 6, irrespective of the direction in which the tape is traveling. The same method can be applied to the cleaning of other magnetic recording surfaces.

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