Browse Prior Art Database

Method and Apparatus for Delubing Magnetic Recording Disks

IP.com Disclosure Number: IPCOM000104111D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Kruger, BP: AUTHOR [+3]

Abstract

A method and apparatus for delubing a magnetic recording disk is disclosed. This apparatus directs fresh filtered solvent along both surfaces of the disk during the delubing cycle.

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Method and Apparatus for Delubing Magnetic Recording Disks

      A method and apparatus for delubing a magnetic recording disk
is disclosed.  This apparatus directs fresh filtered solvent along
both surfaces of the disk during the delubing cycle.

      In this disclosure, the disk 3 is set vertically in the hanger
2, while in the up position.  The hanger 2 contacts the disk 3 at
three points, using a vented vee-groove design.  This vented hanger 2
allows the solvent to flow along both surfaces 4 of the substrate.
After the disk 3 is lowered into the body 1, a pump starts filling
the body 1 through the inlet port 6.  Reservoir 5 fills and the
solvent flow along the surfaces of the disk 3.  The rate at which the
body 1 fills is greater than the drain rate through the drain port 8.
This constant draining allows fresh filtered solvent to come in
contact with the disk 3 surfaces during the entire wash cycle.  The
overflow drain port 7 ensures that the body 1 will keep from over
filling.

      This invention is controlled by the use of timing relays and
solenoid valves.  The pump runs during the entire cycle, the 3-way
solenoid valves switch inputs to redirect the solvent and drain the
body 1 (see figure).