Dale A Nelson

US Patent:

50183117, May 28, 1991

Filed:

Jun 28, 1989

Appl. No.:

7/372971

Inventors:

Gerald D. Malagrino - Rochester MN
Dale A. Nelson - Oronoco MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B24B 2106
B24B 500

US Classification:

51140

Abstract:

A tape burnishing device presents aligned stretches of burnishing tape at each side of a rotating disk. Air nozzles at each side of the disk urge an elliptical pattern of the respective stretches of tape into contact with the disk. During burnishing the tape is stationary while the device is advanced to burnish the desired surface of the disk. The tape stretches, that are portions of a single tape, are positioned at an angle with respect to the radius of the disk and the device is advanced in a radial direction to optimize the burnishing action relative to the rotating disk surface. The tape is advanced between burnishing operations twice the dimension of use during a burnishing operation with the two operating locations out of phase to enable the single tape to advance past both burnishing locations while presenting an unused surface at each location and using the entire surface of the tape.