Particulate filter
First Claim
1. An apparatus comprising:
- a base deck having a cavity configured and arranged to house data storage components including a storage medium;
a filter in the cavity and laterally adjacent a portion of the cavity that is configured and arranged to house the storage medium;
a protrusion configured and arranged to extend over a surface of the storage medium and to divert gas from the surface of the storage medium toward the filter as the storage medium rotates; and
a bypass channel defined by a sidewall of the cavity and a portion of the filter, the bypass channel being configured and arranged with the protrusion to create a pressure differential that draws a first portion of the diverted gas through the filter by bypassing the filter with a second portion of the diverted gas, wherein the filter includes;
a filter material configured and arranged to filter particulates carried by the diverted gas while passing the first portion of the diverted gas, the filter material having an outlet side facing the portion of the cavity that is configured and arranged to house the storage medium and an inlet side facing a portion of the bypass channel and the sidewall of the cavity that defines the bypass channel; and
a filter bracket coupled to the base deck at a portion of the base deck laterally adjacent the storage medium, the filter material being secured to the filter bracket, a portion of the filter bracket defining a sidewall of the bypass channel and positioned relative to the sidewall of the cavity to define a width of the bypass channel.
2 Assignments
0 Petitions
Accused Products
Abstract
Certain exemplary aspects of the present disclosure are directed towards an apparatus including a base deck forming a sealed cavity. A filter coupled to a surface of the base deck within the cavity filters particulate from a flow of gas in the cavity. The recirculation filter including a protrusion extending over a surface of a storage medium within the cavity that diverts gas from a surface of the storage medium toward the filter. A bypass channel, defined by a portion of the cavity and a portion of the filter, in conjunction with the protrusion forms a pressure differential that draws a first portion of the diverted gas through the filter by bypassing the filter with a second portion of the diverted gas.
70 Citations
18 Claims
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1. An apparatus comprising:
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a base deck having a cavity configured and arranged to house data storage components including a storage medium; a filter in the cavity and laterally adjacent a portion of the cavity that is configured and arranged to house the storage medium; a protrusion configured and arranged to extend over a surface of the storage medium and to divert gas from the surface of the storage medium toward the filter as the storage medium rotates; and a bypass channel defined by a sidewall of the cavity and a portion of the filter, the bypass channel being configured and arranged with the protrusion to create a pressure differential that draws a first portion of the diverted gas through the filter by bypassing the filter with a second portion of the diverted gas, wherein the filter includes;
a filter material configured and arranged to filter particulates carried by the diverted gas while passing the first portion of the diverted gas, the filter material having an outlet side facing the portion of the cavity that is configured and arranged to house the storage medium and an inlet side facing a portion of the bypass channel and the sidewall of the cavity that defines the bypass channel; and
a filter bracket coupled to the base deck at a portion of the base deck laterally adjacent the storage medium, the filter material being secured to the filter bracket, a portion of the filter bracket defining a sidewall of the bypass channel and positioned relative to the sidewall of the cavity to define a width of the bypass channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A disc drive apparatus comprising:
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a base deck having a cavity; data storage components including a plurality of storage mediums in a stacked arrangement, the data storage components being in the cavity and configured and arranged to provide access to data stored on the storage mediums as the storage mediums rotate; a cover hermetically sealed to the cavity; a low-density atmosphere sealed in the cavity, the low-density atmosphere including a gas, and having a density that is less than air density at about 0.5 atm at sea level; and a recirculation filter coupled to the base deck, the recirculation filter including a frame between an inner sidewall of the base deck and the storage mediums, the frame being offset from the inner sidewall and forming a channel between the frame and the inner sidewall, a plurality of protrusions, each protrusion extending from the frame to a position between adjacent ones of the storage mediums, and a filter membrane coupled to the frame and configured and arranged with the channel and the protrusions to filter the gas by capturing particulates from the gas as it flows through the filter membrane, and a plurality of transducers, each transducer configured and arranged to access data stored on one of the rotating storage mediums, a voice coil motor rotationally coupled to the base deck and configured and arranged to support each of the transducers above a surface of one of the storage mediums, and wherein the voice coil motor and the recirculation filter are positioned in the cavity on opposite sides of the storage mediums with the recirculation filter having an outlet side facing the plurality of storage mediums and an inlet side facing a portion of the inner sidewall that forms the channel. - View Dependent Claims (15, 16, 17, 18)
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Specification