Appeal No. 1998-0446
Application 08/572,195
The disclosed invention pertains to the field of magnetic
disk drives. More particularly, the invention relates to the
placement of a dust filter in a specific location with respect to
the magnetic heads, the arms and the head drive means of the
magnetic disk drive.
Representative claim 1 is reproduced as follows:
1. A magnetic disk drive comprising:
a plurality of magnetic disks mounted on a spindle at
equally spaced locations on an axis of said spindle and driven to
spin by said spindle;
a plurality of magnetic heads each facing a respective
magnetic disk for selectively writing or reading data in or out
of said magnetic disk, said plurality of magnetic heads each
being caused to float a predetermined distance away from said
respective magnetic disk by a stream of air generated by relative
movement of said magnetic head and said magnetic disk;
a plurality of arms each supporting a respective magnetic
head;
a plurality of head drive means including a pivot, each for
driving a respective one of said plurality of arms in a rotary
motion about said pivot, said plurality of magnetic disks each
spinning in a direction such that a stream of air generated at a
side adjoining an end of each magnetic head moves from its
respective magnetic head, past its respective arm, and toward its
respective head drive means, in that order; and
at least one filter disposed proximate to a respective said
magnetic disk on a path along which the stream of air flows after
being directed by said arms and head drive means past the pivot
of said head drive means without being directed around the head
drive means.
The examiner relies on the following references:
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