87results about "Reducing moisture" patented technology

An improved activated carbon adsorbent for disk drives that has improved or increased adsorption capacity for moisture between 25% RH and 45% RH while optionally maintaining good capacity for organic vapors, acid gasses and moisture at 95% RH.

In one embodiment, a magnetic disk drive is equipped with a mechanism that dehumidifies moisture through a passage or a moisture penetrating body that restrains the flow of water molecules within the magnetic disk drive by means of a membrane electrode assembly for electrolysis dehumidification.

A humidity control method and apparatus that can be utilized to provide humidity control within an enclosed assembly such as a disc drive. The apparatus includes a container that is at least partially formed of a material through which water vapor can freely move. The apparatus also includes a humidity-controlling mixture that comprises at least one salt and a superabsorbent polymer. The humidity-controlling mixture is enclosed within the container.

Methods of controlling relative humidity in an enclosure that include preparing an aqueous solution, the aqueous solution including a hydratable salt, the hydratable salt including a divalent cation; preparing a second composition, the second composition including the aqueous solution; and polyacrylamide, a copolymer of polyacrylic acid and polyacrylamide, or both; and placing the second composition in the enclosure, wherein the second composition absorbs water from the atmosphere of the enclosure. Devices and systems including desiccants are also disclosed.

A magnetic storage system according to one embodiment includes a magnetic head adapted for at least one of reading from a magnetic medium and writing to the medium; a drive mechanism for directing the medium over the head; and a first element for selectively altering a voltage of the medium for altering a state of hydration of the medium.

An apparatus, system, and method are disclosed for controlling out-gassing and humidity in a closed space-constrained environment. In particular, an environment control device is disclosed which is made using thermoforming techniques such that the walls of the device are much thinner than other conventional devices. This allows for the device to be used in space-constrained environment while still providing a sufficient amount of absorber material such as a desiccant. The apparatus includes a base made up of a thin flexible plastic film thermoformed to create a cavity having at least one wall, the cavity having an opening on one side. An absorber material, such as a desiccant, is placed inside the cavity, and a cover made up of a permeable layer sealed to the base opening to complete an enclosure for holding the absorber material.

Oxygen scavenger for use in a hard disk drive. The oxygen scavenger removes oxygen from an interior of a hard disk drive to prevent corrosion of corrodible materials in magnetic media or magnetic heads. The oxygen scavenger is incorporated into a film so that it uses a limited physical space within an interior of the hard disk drive. The hard disk drive is either permeable to the outside environment or sealed so that gases from the outside environment are unable to enter the interior of the hard disk drive.

A method and apparatus for regulating the concentration of a vapor within a hard drive are provided. In one embodiment, the method may include providing a source chemical of a vapor in a first cavity formed within a first object, providing an absorptive chemical which absorbs the vapor in a second cavity formed within the first object, and providing a third cavity formed by a hard drive housing of the hard drive. A first conductance path having a first conductance connects the first cavity to the third cavity, a second conductance path having a second conductance connects the second cavity to the third cavity, and the first conductance and the second conductance maintain a partial pressure level of the vapor within the third cavity.

A system according to one embodiment includes a magnetic structure having a tunnel junction, and a controller and logic integrated with and / or executable by the controller. The logic is configured to reduce a local relative humidity in a vicinity of the tunnel junction by passing a current through the tunnel junction for at least a period of time that the tunnel junction would otherwise not have a current passing therethrough. A method according to one embodiment includes determining a relative humidity in an environment of a tunnel junction that is part of a magnetic structure and selecting an operating current from a range of allowable operating currents based on the determined relative humidity. The selected level of the current is high enough to heat the tunnel junction to a temperature which reduces a local relative humidity in a vicinity of the tunnel junction.

A sealed disk media enclosure is provided. The sealed disk media enclosure in one example includes a media enclosure structure formed of a porous material and including a disk media chamber and a chamber aperture on one side of the media enclosure structure, one or more disk media located in the disk media chamber, a Diamond-Like Carbon (DLC) coating on at least a portion of the media enclosure structure, with the DLC coating preventing passage of gas molecules through the media enclosure structure, and a cover affixed to the media enclosure structure and substantially sealing the chamber aperture, wherein a predetermined gas or gas mixture is sealed within the disk media chamber.

An improved activated carbon adsorbent for disk drives that has improved or increased adsorption capacity for moisture between 25% RH and 45% RH while optionally maintaining good capacity for organic vapors, acid gasses and moisture at 95% RH.

Approaches for desiccant device having a dual stage humidity control for use within sensitive electronic equipment. Electronic equipment, such as a hard-disk drive (HDD), may comprise a desiccant device that comprises a first absorbing portion that comprises a first desiccant material and a second absorbing portion that comprises a second desiccant material. The first absorbing portion possesses a relatively rapid permeation rate for water vapor, while the second absorbing portion possesses a relatively low permeation rate for water vapor. The first desiccant material may have a relatively high rate of water vapor absorption, while the second desiccant material may have a relatively low rate of water vapor absorption. In this way, embodiments allow for the sensitive equipment to be dried out rapidly in manufacturing and yet have a slow reversible water absorption rate during operation.

A structure is provided that prevents damage to an HDD and loss of recorded data by prohibiting the hard disk from being shifted to the active state in a state in which there is a problem with an environment. On the basis of detection information of each of sensors such as a fall sensor and a temperature sensor, it is determined whether or not data recording or a playback process utilizing the hard disk can be executed safely. The hard disk is caused to be shifted from being in a suspended state to being in an active state on condition that it is determined that safe data recording or playback is possible, and a data recording and playback process utilizing the hard disk is executed. By using this structure, the hard disk is prevented from being shifted to being in the active state in a state in which there is a problem with the environment, for example, in the case of falling, the case of high temperature or high humidity, or the like, and damage to the HDD and loss of recorded data can be prevented.

Oxygen scavenger for use in a hard disk drive. The oxygen scavenger removes oxygen from an interior of a hard disk drive to prevent corrosion of corrodible materials in magnetic media or magnetic heads. The oxygen scavenger is incorporated into a film so that it uses a limited physical space within an interior of the hard disk drive. The hard disk drive is either permeable to the outside environment or sealed so that gases from the outside environment are unable to enter the interior of the hard disk drive.

A method and apparatus for regulating the concentration of a vapor within a hard drive are provided. In one embodiment, the method may include providing a source chemical of a vapor in a first cavity formed within a first object, providing an absorptive chemical which absorbs the vapor in a second cavity formed within the first object, and providing a third cavity formed by a hard drive housing of the hard drive. A first conductance path having a first conductance connects the first cavity to the third cavity, a second conductance path having a second conductance connects the second cavity to the third cavity, and the first conductance and the second conductance maintain a partial pressure level of the vapor within the third cavity.