Involving Communication Receiving Or Transmitting Apparatus Patents (Class 55/385.6)
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Patent number: 6544311Abstract: A system for cooling an electrical chassis in which two separate zones are formed within the chassis by horizontal separators forming an internal floor and a ceiling, and a mid-located backplane acting as a vertical separator, spanning from floor to ceiling. Air flow volume through the zones is controlled separately through the use of separate air intake filters that may have different filter densities and sizes, and appropriate fan pack size.Type: GrantFiled: April 17, 2002Date of Patent: April 8, 2003Assignee: AG Communication Systems CorporationInventors: Richard A. Walton, Zbigniew Kabat, Paul Tyschenko
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Patent number: 6544309Abstract: An apparatus having at least one membrane filter for a superficial filtering of at least dirt particles from inflowing cooling air for cooling an electrical module and also at least one cooling device for establishing an air flow in the housing and for discharging the heated-up cooling air out of the housing from at least one air outlet, the membrane filter associated with a vibration generator to undergo a mechanical vibration which causes the dirt particles deposited on the surface to be dislodged.Type: GrantFiled: October 12, 2001Date of Patent: April 8, 2003Assignee: Siemens AktiengesellschaftInventors: Bruno Hoefer, Guido Reeck
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Patent number: 6533835Abstract: A supplemental filter for an electronic component including a frame portion having a generally U-shaped configuration. The frame portion has a pair of vertical supports having upper and lower ends. The lower ends have a horizontal support extending therebetween. The pair of vertical supports and the horizontal support define a receiving channel. The frame portion is securable to an electronic component with the receiving channel positioned over the vent thereof. A foam filter is dimensioned for being slidably received within the frame portion.Type: GrantFiled: April 27, 2001Date of Patent: March 18, 2003Inventors: Mark Wilson, Bruce Griggs
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Patent number: 6475270Abstract: A diffusion channel assembly for use with a device enclosure with two or more nested cups forming at least one diffusion channel. The nested cups are formed of a thermoplastic film material. Each of the cups has a perimeter seal portion substantially around the entire outer perimeter of the cups and surrounding a cup portion having a vent hole. The perimeter seal portions form a sealing surface and are generally integral with the cup portions. The cup portions have vent holes and at least one gap between adjacent cup portions that connect the vent holes of the adjacent cup portions. The gaps coupled with the vent holes of adjacent cup portions form at least one diffusion channel of a length of at least 5 mm. The perimeter seal portions are sealed to form an airtight seal around the cup portion forming an integral diffusion channel assembly.Type: GrantFiled: May 22, 2000Date of Patent: November 5, 2002Assignee: 3M Innovative Properties CompanyInventor: Eric G. Graeve
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Patent number: 6475269Abstract: A filter assembly for a disk drive includes an outer shell through which gases flow in and out of the disk drive. The shell includes a tubular housing that extends into the disk drive. A first filter lies secured to an end portion of the housing and filters gases circulating within the disk drive and entering into the disk drive. The housing contains a second filter that includes an adsorbent body and a third filter that extends across an opening in the housing and helps contain the second filter within the housing.Type: GrantFiled: June 12, 2001Date of Patent: November 5, 2002Assignee: Maxtor CorporationInventor: Robert D. Turner
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Patent number: 6419729Abstract: Filter assemblies with adhesive attachment systems are provided. In one embodiment, a filter assembly includes a porous filter member and an adhesive disposed on a reinforcement scrim adhesively attached to at least a portion of at least one major surface of the porous filter member, wherein the reinforcement scrim has discrete open areas. In an alternative embodiment, a filter assembly includes a porous filter member that includes fibrous filter media and an adhesive impregnated into discrete regions of the porous filter member such that there is a substantially continuous adhesive region throughout at least about 25% of the thickness of the porous filter member in the discrete regions.Type: GrantFiled: April 17, 2000Date of Patent: July 16, 2002Assignee: 3M Innovative Properties CompanyInventors: Dean R. Duffy, William M. Stevenson, John F. Reed, David J. Andrews
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Publication number: 20020066372Abstract: A system for filtering air entering the housing of a computer. A filter is placed in the path of air entering the computer housing. A timing program is installed on the computer to keep track of the total amount of time the computer has run since installation or service of the filter. After the computer has run for a predetermined amount of time, the program causes the computer to prompt the computer user to change or service the filter.Type: ApplicationFiled: December 1, 2000Publication date: June 6, 2002Inventor: Troy Elliott White
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Patent number: 6395073Abstract: The invention relates to a device for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as electronic or optical devices susceptible to contamination (e.g. computer disk drives) by incorporating multiple filtration functions into a unitary filter. Filtration functions include a combination of inlet, or breather, filter and recirculation filter. Moreover, adsorbent functions can be added to the filter depending on desired functionality within the enclosure.Type: GrantFiled: August 23, 2000Date of Patent: May 28, 2002Assignee: Gore Enterprise Holdings, Inc.Inventor: Edwin Dauber
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Patent number: 6379428Abstract: A method is provided for reducing the number of particles within a chamber of a fabrication tool located within a gray area of a clean room. A portable clean room station is provided that is capable of producing a white environment having fewer particles than the gray environment. The portable clean room station is positioned so that the chamber is exposed to the white environment of the portable clean room station rather than to the gray environment when the chamber is opened within the gray area. The white environment, which has fewer particles than the gray environment, is produced by employing the portable clean room station, and the chamber is then opened. Thereafter maintenance is performed on the opened chamber. Preferably the white environment is selected so as to have at least two orders of magnitude fewer particles per cubic foot than the gray environment.Type: GrantFiled: February 10, 2000Date of Patent: April 30, 2002Assignee: Applied Materials, Inc.Inventors: Roman Mostovoy, Glen T. Mori
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Publication number: 20020036886Abstract: A dustproof structure for a communication device is disclosed, in which the whole area of the air filter can be effectively used, the dust collecting efficiency can be improved at low cost, and an increase in the pressure loss can be prevented. The air filter comprises a first air filter section and a second air filter section, wherein the first air filter section is provided at an area closer to the fan, within which the air flow is concentrated, and the second air filter section is provided at another area farther from the fan, and the first air filter section has a dust collecting efficiency higher than that of the second air filter section, while the second air filter section has a pressure loss lower than that of the first air filter section.Type: ApplicationFiled: October 25, 2001Publication date: March 28, 2002Inventor: Masayuki Negishi
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Publication number: 20020027766Abstract: A dustproof structure for a communication device is disclosed, in which the whole area of the air filter can be effectively used, the dust collecting efficiency can be improved at low cost, and an increase in the pressure loss can be prevented. The air filter comprises a first air filter section and a second air filter section, wherein the first air filter section is provided at an area closer to the fan, within which the air flow is concentrated, and the second air filter section is provided at another area farther from the fan, and the first air filter section has a dust collecting efficiency higher than that of the second air filter section, while the second air filter section has a pressure loss lower than that of the first air filter section.Type: ApplicationFiled: October 25, 2001Publication date: March 7, 2002Inventor: Masayuki Negishi
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Publication number: 20020027765Abstract: A dustproof structure for a communication device is disclosed, in which the whole area of the air filter can be effectively used, the dust collecting efficiency can be improved at low cost, and an increase in the pressure loss can be prevented. The air filter comprises a first air filter section and a second air filter section, wherein the first air filter section is provided at an area closer to the fan, within which the air flow is concentrated, and the second air filter section is provided at another area farther from the fan, and the first air filter section has a dust collecting efficiency higher than that of the second air filter section, while the second air filter section has a pressure loss lower than that of the first air filter section.Type: ApplicationFiled: October 25, 2001Publication date: March 7, 2002Inventor: Masayuki Negishi
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Patent number: 6309437Abstract: A computer box filter cover including a frame assembly that selectively attaches to a computer box and a door assembly that attaches to the frame assembly and that selectively closes over the entire front surface of the computer box. The frame assembly includes an extending lip which properly aligns the lower section of the frame assembly on the computer box so that the edges of the door assembly may be pressed against the edges of the frame assembly during use to form a seal around the front surface. The extending lip also allows the position of the frame assembly on the computer box to be adjusted so that the filter cover may be on different front surfaces. Located inside the door assembly is a filter and formed on the outside surface cover assembly opposite the filter is a plurality of air inlet openings through which air is drawn when the door assembly is closed over the front surface of the computer box.Type: GrantFiled: June 9, 1999Date of Patent: October 30, 2001Inventor: William H. Jones
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Patent number: 6296691Abstract: The present invention is an improved molded filter which performs multiple filtration functions within an enclosed environment, such as within a computer hard disk drive. In a first embodiment, the filter is capable of removing particulate contaminants from both incoming (external) air and recirculating air by performing both breather and recirculation functions when placed over a breather hole in a disk drive. In an alternative embodiment, the filter also incorporates an adsorbent material which allows it to remove both particulate and vapor phase contaminants from incoming (external) air and recirculating air within the disk drive.Type: GrantFiled: November 4, 1999Date of Patent: October 2, 2001Assignee: Gore Enterprise Holdings, Inc.Inventor: Rajan Gidumal
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Patent number: 6284010Abstract: An adjustable air filter assembly for a personal computer includes a substantially U-shaped frame member formed of a telescoping transverse arm having a pair of telescoping side arms extending therefrom. Accordingly, the width and length of the frame can be selectively varied to peripherally border varying size air intake vents on a computer housing. An adjustable filter element is slidably received within the frame member.Type: GrantFiled: November 12, 1999Date of Patent: September 4, 2001Inventor: Susan Skae Rehmert
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Patent number: 6273812Abstract: A hermetic type outdoor equipment such as radio relay equipment is provided with a respiratory structure (8) having a minute-hole sheet (5) applied to a respiratory hole (4) of a case (3) of the equipment, and capillary members (9) implanted outwardly on a surface of the minute-hole sheet (5). The equipment case (3) is composed of a lower housing (2) and an upper housing (1) hermetically engaged with the lower housing (2), and the respiratory hole (4) is formed through the lower housing (2). The minute-hole sheet (5) is disposed at the inner surface side of the case (3), and the capillary members (9) extend outwardly within the respiratory hole (4). A plate (6) having an opening (6a) at a position corresponding to the respiratory hole (4) and superimposed to the minute-hole sheet (5) and the minute-hole sheet (5) is fixed to the lower housing (2) of the case (3) by screws (7).Type: GrantFiled: September 1, 1999Date of Patent: August 14, 2001Assignee: NEC CorporationInventor: Kazuo Komatsu
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Patent number: 6238467Abstract: A unitary rigid filter that performs multiple contamination control functions within an enclosure for sensitive equipment (e.g., disk drives). The filter incorporates recirculation and adsorbent filtration, along with optional inlet and diffusion functions in a unique rigid filter construction.Type: GrantFiled: September 24, 1999Date of Patent: May 29, 2001Assignee: Gore Enterprise Holdings, Inc.Inventors: Michael H. Azarian, Jacob Maniyatte
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Publication number: 20010000381Abstract: A filter assembly includes a shaped adsorbent article disposed in a housing. The shaped adsorbent article has one or more projections extending from a surface of the article toward the housing to provide for flow of fluid between the shaped adsorbent article and the housing. The filter assembly may optionally includes a diffusion channel for additional filtering and/or one or more porous polymer films disposed over inlet or outlet openings in the housing to reduce or prevent particulate contamination. The filter assembly may be used in a device, such as a computer disk drive, to filter a fluid, such as air, within and/or entering or exiting the device.Type: ApplicationFiled: December 11, 2000Publication date: April 26, 2001Applicant: Donaldson Company, Inc.Inventors: Daniel L. Tuma, Andrew C. Dahlgren, Vijay Garikipati, Randy J. Logan
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Patent number: 6214095Abstract: An adsorbent pouch assembly for removing gaseous contaminants and impurities from a gas stream. The assembly is particularly designed for non-adhesively mounting into the internal enclosure of a disk drive.Type: GrantFiled: July 6, 1999Date of Patent: April 10, 2001Assignee: Donaldson Company, Inc.Inventors: Randy Jon Logan, Son T. Nguyen, Daniel L. Tuma, David J. Tuffley
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Patent number: 6214070Abstract: The filter assembly of the present invention provides protection to a data storage disk drive assembly from contaminants, including chemical gases and particles, that either enter or exit the disk drive assembly. Incoming gases and particles pass through a label, into a hard body filter, through a diffusion filter, contact the chemical adsorbent and pass into the drive interior through a particulate filter. Outgoing gases and particles go through the apparatus in reverse. The filter assembly may be installed from the outside of the disk drive assembly at a chosen location and at any point during or after manufacturing and testing. The filter assembly is held in place by lateral extensions and an adhesive label applied to the exterior mounting surface.Type: GrantFiled: July 19, 1999Date of Patent: April 10, 2001Assignee: Maxtor CorporationInventors: Mark S. Crowder, David Fowler, Robert Turner, Paul D. Mischo
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Patent number: 6193774Abstract: A reflow solder convection oven with a passive gas decontamination subsystem. This subsystem includes an intake duct in fluid communication with the gas outtake of a heating zone of the oven, at least one decontamination duct connected on one end to the intake duct, the decontamination duct including a plurality of collision baffles therein for collecting contaminants from the gas in the oven, and an outtake duct connected to the decontamination duct on an end opposite the intake duct and in fluid communication on an opposite end with the gas intake of the heating zone.Type: GrantFiled: February 19, 1999Date of Patent: February 27, 2001Assignee: Conceptronic, Inc.Inventors: Kerem Durdag, Tom Sherwin, Robert Silveri
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Patent number: 6174231Abstract: Air exit device of a microcomputer central unit, characterized by the fact that it comprises a support (3) to be fixed around the microcomputer housing ventilation air exit opening (2), an orientable guide tube (4, 4A, 4B) linked to the support (3), and a removable air filter (5, 6) placed in the way of the air which passes through the support (3) and the guide tube (4, 4A, 4B).Type: GrantFiled: December 11, 1998Date of Patent: January 16, 2001Inventor: Eric Jean-Louis Bodin