Burnish head design with multiple pads on side rail
AssigneeSeagate Technology LLC
InventorsWeimin Qian, Igor V. Sytine, Matthew Aaron Carper, Pranesh Swany, Eric K. Dahlin, Hamid F. Ghazvini
Life of this patent
Estimating the term…
Abstract
A disc burnishing head includes an array of burnishing pads and a first and second side rail projecting from a bottom surface of a slider body. The side rails each have an inside surface facing the burnishing pads and an outside surface facing outward. The outside surface of at least the first side rail is serrated. The serrations define a plurality of teeth and notches on the outside surface of the first side rail for cutting, cleaning, and conditioning defects from the surface of a disc.
Claims18
A head comprising:
- a slider body having a top surface and a bottom surface;
- and
- a first side rail and a second side rail projecting from the bottom surface, the side rails each having a leading surface, trailing surface, bottom surface, inside surface, and outside surface;
- wherein the outside surface of the first side rail includes serrations.
An apparatus comprising:
- a burnishing head including a slider body, an array of burnishing pads projecting from the slider body, and first and second side rails projecting from the slider body on opposite sides of the array of burnishing pads, the side rails each having an outer surface opposite an inner surface:
- wherein the first side rail outer surface is serrated;
- a rotation mechanism for rotating a disc;
- and
- a translation mechanism for sweeping the burnishing head across a surface of the disc while the disc is rotated.
A slider comprising:
- first and second side rails projecting from a bottom surface of the slider, each side rail having a leading side, trailing side, bottom side, inner side, and outer side;
- wherein the outer side of the first side rail comprises protrusions.
Dependencies are inferred from the claim text.