Browse Prior Art Database

Magnetic Head Assembly With Vacuum Pad

IP.com Disclosure Number: IPCOM000098046D
Original Publication Date: 1961-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Cutia, A: AUTHOR [+2]

Abstract

A magnetic head assembly is provided having an inexpensive vacuum pad arrangement to maintain in-flight medium contact to the head assembly.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Magnetic Head Assembly With Vacuum Pad

A magnetic head assembly is provided having an inexpensive vacuum pad arrangement to maintain in-flight medium contact to the head assembly.

Documents such as record cards 1 bearing magnetic information move across mounting plate 2, passing over a plurality of magnetic head assemblies 3 mounted in a row perpendicular to the plane of a card. Each magnetic head 4 is mounted in a rectangular housing 5 having a central recess 6 containing the coil connections to projecting terminals 7. The top of 5 has opposing grooves 8 milled to a depth of approximately half the thickness of the housing and extending to either side of the head 4.

A fan 9 is mounted in an enclosure 10 secured to the mounting plate 2 to provide a low-vacuum-pressure, high-air-flow chamber surrounding the assemblies 3. The vacuum created in the grooves 8 insures a reliable medium to head contact over the entire surface of the head assembly. The top of each housing 5 between the grooves 8 is chamfered at either side. Since there is a plurality of head assemblies 3 mounted in a row, the smaller grooves 11 straddle each head gap to insure a low in a row, the smaller grooves 11 straddle each head gap to insure a low pressure condition in-line with the head gaps to provide a reliable head gap contact with the medium.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]