Burnishing head for memory disk drive

Details Burnishing head for memory disk drive Burnishing head for memory disk drive

1988-09-12

1989-07-11

Schmidt, Frederick R.

Metal working

Burnishing

51132, B24B 3906, B24B 704, B21C 3730

Patent

active

048458163

ABSTRACT:
A contact burnishing head is described for memory surfaces of computer memory disks. The operating surface of the burnishing head is defined by a regular pattern of diamond-shaped protrusions. In one embodiment, a ramp face is provided along the leading edge of the head in order to prevent large asperities in the disk surface from interfering with proper burnishing. In another embodiment, two opposed edges of the head are provided with ramp faces so that a single head design can be used to burnish either the upper or the lower surface of a computer disk.

REFERENCES:
patent: 3486274 (1969-12-01), David
patent: 3943666 (1976-03-01), Dion et al.
patent: 4330910 (1982-05-01), Schachl et al.
patent: 4430782 (1984-02-01), Bornhorst et al.
IBM Technical Disclosure Bulletin vol. 14 No. 5 Oct. 1971 pp. 1444-1445.
IBM Technical Disclosure Bulletin vol. 19 No. 10 Mar. 1977 pp. 3829-3830.
IBM Technical Disclosure Bulletin vol. 20 No. 3 Aug. 1977 pp. 1146-1147.
IBM Technical Disclosure Bulletin, vol. 17, No. 10, 03/1975, p. 3010.

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