Browse Prior Art Database

Symmetric Slot Type Air Head

IP.com Disclosure Number: IPCOM000097019D
Original Publication Date: 1962-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Allais, DC: AUTHOR

Abstract

In the bottom view of a forced-air head for magnetic recording, air is supplied to the head and discharged at the lower surface. This forms a cushion or film of air which supports the head above the recording surface.

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Symmetric Slot Type Air Head

In the bottom view of a forced-air head for magnetic recording, air is supplied to the head and discharged at the lower surface. This forms a cushion or film of air which supports the head above the recording surface.

An air scavenging recess 1 is centrally located in the lower head surface. A plurality of elongated, arcuate air discharge slots 2 are formed in the lower surface. The slots are spaced inwardly a short distance from the head periphery. A narrow land 3 is provided at the outer edge of the slots and a wide land 4 at the inner edge.

A greater portion of the air supplied to the head flows across the narrow land than across the wide land. This asymmetrical flow pattern permits larger air supply orifices to be used with a reduced head to recording surface spacing. The location of the slots near the outer edge increases the tilt stability of the head.

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