Appeal No. 1998-1465
Application No. 08/445,926
Appellants' invention relates to a disk drive structure
having an enclosure formed of a base casting and a cover
casting with mating surfaces along the length of the disk
drive. The base casting includes die-cast generated zero
draft geometries for mounting the spindle motor shaft and the
actuator bearing shaft. The cover casting includes an
integral diffusion path and an integral channel for
controlling airflow to and from a breather filter,
respectively. Claim 1 is illustrative of the claimed
invention, and it reads as follows:
1. A data storage disk drive comprising:
at least one disk surface mounted for rotation about a
spindle motor shaft;
at least one data transducer head for reading and/or
writing data to respective disk surfaces;
an actuator for moving said at least one data transducer
head across respective disk surfaces; said actuator including
an actuator bearing shaft; and
a device enclosure for enclosing said at least one disk
surface, said at least one data transducer head and said
actuator, said device enclosure defined by a base casting and
a cover casting, each of said base casting and said cover
casting having a mating surface along the length of the data
storage disk drive, said base casting including die-cast
generated predetermined zero draft geometries for mounting
said spindle motor shaft and said actuator bearing shaft at
spaced apart locations;
2
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