Slider with negative and positive pressure generating portions a

Details Slider with negative and positive pressure generating portions a Slider with negative and positive pressure generating portions a

1998-03-24

2000-11-07

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

3602356, 3602357, 3602358, 3602359, 360236, 3602363, G11B 560

Patent

active

061445290

ABSTRACT:
The present invention is directed to a slider, a head, a head device and a read/write apparatus that are extremely effective for achieving high density writing and an increase in the storage capacity.
The slider comprises a front flat surface, a first positive pressure generating portion, a second positive pressure generating portion and a first negative pressure generating portion. The front flat surface, which is provided starting at a leading edge, ends at an intermediate point along a lengthwise direction. The first and second positive pressure generating portions have flat surfaces which are essentially of equal heights and are positioned separated from each other over a distance at two sides in a widthwise direction running perpendicular to a lengthwise direction, with edges at one end located toward the leading edge forming step faces rising up from the front flat surface in a step. The first negative pressure generating portion is provided behind the front flat surface relative to the airflow direction and has a base surface with a height which is lower than the height of the front flat surface.

REFERENCES:
patent: 3823416 (1974-07-01), Warner
patent: 4734803 (1988-03-01), Nishihira
patent: 4870519 (1989-09-01), White
patent: 4894740 (1990-01-01), Chhabra et al.
patent: 5287235 (1994-02-01), Cunningham et al.
patent: 5726831 (1998-03-01), White
patent: 5777825 (1998-07-01), Dorius
patent: 5796551 (1998-08-01), Samuelson
patent: 5798889 (1998-08-01), Dorius

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