US3868158A - Module rack for connection boxes of printed-circuit cards - Google Patents

Module rack for connection boxes of printed-circuit cards Download PDF

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Publication number
US3868158A
US3868158A US360221A US36022173A US3868158A US 3868158 A US3868158 A US 3868158A US 360221 A US360221 A US 360221A US 36022173 A US36022173 A US 36022173A US 3868158 A US3868158 A US 3868158A
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United States
Prior art keywords
bars
openings
module rack
rack
connection boxes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US360221A
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English (en)
Inventor
Bernard Andre Laboue
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Bull SA
Original Assignee
Bull SA
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Publication date
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Publication of US3868158A publication Critical patent/US3868158A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20536Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
    • H05K7/20554Forced ventilation of a gaseous coolant
    • H05K7/20572Forced ventilation of a gaseous coolant within cabinets for removing heat from sub-racks, e.g. plenum
    • H05K7/20581Cabinets including a drawer for fans
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1401Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1422Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1424Card cages
    • H05K7/1425Card cages of standardised dimensions, e.g. 19"-subrack
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/16Mounting supporting structure in casing or on frame or rack on hinges or pivots

Definitions

  • the present invention relates to a module rack for the mounting of connection boxes of printed circuitcards which ischaracterized in that the module rack is intended for receiving connection boxes of any widths, the boxes being arranged according to rows located at different levels, and being inserted side by side in a row. in the arrangement disclosed, insertion, withdrawing or. substitution of a connection box by another is extremely simple .and requires a relatively short time.
  • the module rack is particularly intended for the mounting of connection boxes which are utilized in data processing equipment.
  • connection boxes In the construction of electronic equipment used in telecommunication, or for information processing, electrical circuits are widely used which are designed in the form of cards for printed circuits equipped with, or without, electronic components, to be inserted in connectors linked with interconnection circuits.
  • These printed-circuit cards are usually mounted in rigid frames which are commonly called connection boxes because each of these frames exhibits the form ofa parallelepipedic box whose upper and lower sides consist of two systems of card guides, positioned, parallel side by side with their ends joined by two side plates; their back is formed by an interconnection panel that functions as support for rows of connectors whose contact parts are welded to conductor circuits of the interconnection panel.
  • a connection box of this type is particularly described in the French Pat. No. 2,085,476, filed by the industrial company Bull General Electric on Apr. 24, 1970.
  • connection boxes are usually located in the interior of a rigid module rack which isso constructed as to enable the maintenance personnel to have easy access to these boxes and possibly remove them from the rack to replace them.
  • the rack is equipped with sideways on which rest the lower edges of the side plates of the boxes which are entered into the rack, each box being thus supported by two slides whose distance from one another corresponds with the width of the box.
  • the connection boxes are positioned in the 7 rack in such a fashion that they form superimposed rows, the boxesv all being of the same height and being placed in each of these rows side byside.
  • This rack may, for example, take the form of a set of pigeon holes of that type which was particularly described and represented in the French Pat. No. 1,567,300, filed on Mar. 21, 1968.
  • connection boxes In electronic equipment of such design, it is not possible to install between two sideways of the rack, connection boxes whose widths differ substantially from the distance between these slides. This fact presents the more serious a drawback, especially .in that in such equipment as utilized for information processing, one is frequently forced to employ, in response to the needs of the user, connection boxes which contain a more or less large number of printed-circuit cards, whose width, therefore, differs significantly from box to box. Furthermore, in conventional equipment when one has to replace connection boxes by others of greater width, to increase the range of their use or for reasons of function of this equipment, one is sometimes forced to change the position ofthe slides, or even remove some of them. This is only feasible at the cost ofanoccassional substantial modification of the rack and as a practical matter requires the sending of the rack toa factory that is capable of handling this modification.
  • the I present invention corrects this drawback and proposes a rack designed to take connection boxes for printed-circuit cards, this rack being suited to receive connection boxesof different width while offering the greatest possibilities for the interchangeability of the boxes. Moreoventhe mounting, the withdrawal, or interchanging of the boxes in this rack can be carried out, I
  • each rear bar being connected with a respective front bar and being positioned on the same level as the latter, and a system of sideways, each placed between a front bar and a rear bar linked up to support the lower lateral edges of the connection boxes which are entered into the rack.
  • each bar comprises a series of identical openings, placed at regular intervals, following an alignment direction parallel to the length of the bar, and in that each slideway is removable and provided at each of its ends with at least one opening whose form is different from;the r openings of the bars.
  • These openings consist either of circular holes, or of oblong apertures running in said alignment direction.
  • the rack is also characterized in that the width of the oblong apertures as well as their rate of distance when they are drilled into the bars are established as a function of the distanceseparating two consecutive circular holes in such a way that at least one opening of each end of the slides is facing one of the openings of the bars of the rack, irrespective of the position of that end along these bars. This makes it pos-. sible for an attachment part to pass through these open" ings to achieve the solid connection with thisend with the rack.
  • FIG. 1 is a perspective view, having portions broken away of an equipment console for information processing, this console containing two module racks, installed according to the invention
  • FIG. 2 is a perspective view of a module rack according to the invention showing the manner in which the connection boxes are arranged in this module rack;
  • FIG. 3 is a perspective view of a connection box for printed-circuit cards in an exploded representation to better bring out certain details
  • FIG. 4 is a detailed view demonstrating the manner in which a connection box inserted in the module rack 125 through the oblong openings -1 of that rear bar.
  • the other end of the bar 200 is connectedwith the base 203 (FIG. 5) carrying two screw holes 204 which permit, as shown in FIG. 4, the fastening of the slide onto one of the front bars BV of the module rack with the screw 126 through the oblong openings 20-1 of this front bar.
  • the base 203 also carries twoother screw holes 205, each provided to receive one of the attachment screws 124 of the connection boxes mounted in the module rack.
  • the slideway, shown in FIG. 4, is equipped on its upper face with a longitudinal groove 206 whose width e is slightly larger than twice the thickness of the side plates of the connection boxes.
  • this lateral plate resting with its lower edge 127 on the bottom of the groove 206, and to push it (the plate) to the very rear end of this groove.
  • each of the slideways maybe placed in any position along the front and rear bars of the module rack.
  • this objective was accomplished by providing oblong apertures 20-] and 20-2 in the front and rear bars of the module rack, as shown in FIG. 6, whose length l is larger than the distance d which separates the two holes 202 (or the two holes 204) bored in each of t the bases of the slideways for the fastening of these slideways to the module rack. Additionally, these openings are separated from each other in the same row by an interval m whose dimension is at most equal to that of d. These holes and openings thus satisfy the double inequality:
  • the pitch 1, by which the oblong openings are arranged in the same row, is at the maximum equal to the sum total of the length tof the oblong openings and the distance a separating the two circular holes of a base:
  • connection boxes may be positioned side by side in the module rack, the adjoining side plates 1078 and 1088 of two contiguousboxes being engaged inthe same groove 206, as shown by schematic representation in FIG. 6.
  • the number of connection boxes which may be thus placed side by side on the same level in the module rack obviously depends on the width of these boxes and on the length of the bars of the module rack.
  • the connection boxes are arranged in the example of embodiment, illustrated in FIG. 2, on three different levels in themodule rack, each level comprising two boxes placed side by side. In the module rack of FIG.
  • each box mounted in'the module rack be positioned either immediately above the fans 22 or just above a box through which the air generated by the fans 22 has alof the slideway along a bar of the module rack, at least I one of the two circular holes for the attachment of. the base to that bar is always positioned opposite an oblong opening of this bar.
  • the slideways 21 may, consequently, always beplaced in the module rack in such a way that the distance L separating two adjoining slideways be practically equal to the length of the connection box which has to be supported by these two slides.
  • connection box During the installation of'this connection box in the module rack, the two lateral plates 1078 and 1088 of this box are engaged in the grooves206 of these two slideways and, guided by the latter, may be pushed to the back of the module rack .until the attachment screws 124 of that connection box may be inserted into the holes 205 corresponding with the slides.
  • connection boxes of a height equal to the distance between two consecutive front bars between which one wishes to place the box in the rack.
  • the upper edges of the lateral plates 1078 and 1088 of these boxes may in this case be set, in the'grooves of the slideways 24 mounted in the module rack as shown by FIG. 6.
  • the openings provided in the front and rear bars of the module rack for the fastening of the slideways consist of circular holes 30, so that each bar comprises at least the connection boxes during their insertion into the module rack.
  • a module rack according to claim 1 characterized in that each of the slideways is provided with two circular holes; and wherein the first openings are oblong openings drilled in each of the bars of the module rack each exceeding, in length, the distance between these two circular holes and being separated from each other by an interval whose dimension is at the most equal to said distance.
  • each end of each slideway has a single oblong opening formed therein; and wherein the first openings are circular holes bored in each of the bars of the module rack and being spaced from each other at a distance that is at the most equal to the length of that oblong v in that each connection box is provided with ventilation openings on its lower face andon its upper face; and wherein the modular rack includes at least one row of ventilators arranged below the group of connection boxes placed in the modular rack to providelfor the cooling of the circuits contained in the connection boxes.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US360221A 1972-05-17 1973-05-14 Module rack for connection boxes of printed-circuit cards Expired - Lifetime US3868158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7217609A FR2184443B1 (de) 1972-05-17 1972-05-17

Publications (1)

Publication Number Publication Date
US3868158A true US3868158A (en) 1975-02-25

Family

ID=9098646

Family Applications (1)

Application Number Title Priority Date Filing Date
US360221A Expired - Lifetime US3868158A (en) 1972-05-17 1973-05-14 Module rack for connection boxes of printed-circuit cards

Country Status (5)

Country Link
US (1) US3868158A (de)
DE (1) DE2324755A1 (de)
FR (1) FR2184443B1 (de)
GB (1) GB1418417A (de)
IT (1) IT987658B (de)

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044943A2 (de) * 1980-07-28 1982-02-03 International Business Machines Corporation Vorrichtung und Verfahren zum Montieren und Verpacken von Datenverarbeitungsanlagen
EP0089401A2 (de) * 1982-03-19 1983-09-28 Siemens-Albis Aktiengesellschaft Zwangsbelüfteter Baugruppenträger
US4508228A (en) * 1981-06-29 1985-04-02 Rittal-Csm Limited Card frames
US4699270A (en) * 1985-09-09 1987-10-13 The Union Corporation Modular packaging system
EP0312372A2 (de) * 1987-10-15 1989-04-19 BICC Public Limited Company Kühlungssystem für elektronische Anlage
EP0470926A1 (de) * 1990-08-07 1992-02-12 Elma Electronic Ag Luftkühlung von mit Leiterplatten bestückten Steuerschränken
US5112119A (en) * 1989-10-27 1992-05-12 International Business Machines Corp. Support structure for devices in a computer apparatus
EP0617570A1 (de) * 1993-03-20 1994-09-28 International Business Machines Corporation Modulgehäuse
EP0786930A1 (de) * 1996-01-23 1997-07-30 Siemens Aktiengesellschaft Gehäuse für einen flachen Lüftereinschub
WO1997034346A1 (de) * 1996-03-13 1997-09-18 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Modularer gehäuseaufbau
US5806948A (en) * 1997-06-16 1998-09-15 Rowan, Sr.; W. Frank Retrofittable battery cabinet for telecommunications enclosures
US6229696B1 (en) * 1998-08-31 2001-05-08 Hon Hai Precisin Ind. Co., Ltd. Movable frame for retaining a component in a computer enclosure
US6262888B1 (en) * 1999-06-30 2001-07-17 Dell Usa, L.P. Impact damping system for peripheral device
US6499609B2 (en) * 2001-06-04 2002-12-31 Hyperchip Inc. Compact shelf unit for electronic equipment rack
US6557624B1 (en) * 2000-08-09 2003-05-06 Liebert Corporation Configurable system and method for cooling a room
US20030224645A1 (en) * 2002-05-31 2003-12-04 Racksaver, Inc. Rack mountable computer component power distribution unit and method
US20030223199A1 (en) * 2002-05-31 2003-12-04 Racksaver, Inc. Rack mountable computer component and method of making same
JP3497173B2 (ja) 1996-11-19 2004-02-16 リッタル―ヴェルク ルードルフ ロー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト 配電盤キャビネット
US20040057216A1 (en) * 2002-09-25 2004-03-25 Smith John V. Electronic component rack assembly and method
US6801428B2 (en) 2002-05-31 2004-10-05 Racksaver, Inc. Rack mountable computer component fan cooling arrangement and method
US6867966B2 (en) * 2002-05-31 2005-03-15 Verari Systems, Inc. Method and apparatus for rack mounting computer components
US20060123021A1 (en) * 2004-12-06 2006-06-08 Byers Charles C Hierarchical packaging for telecommunications and computing platforms
US7113991B1 (en) * 2001-03-16 2006-09-26 Veritas Operating Corporation Model for cost optimization and QoS tuning in hosted computing environments
US20060248380A1 (en) * 2005-04-27 2006-11-02 Hitachi, Ltd. Disk array device
US7187547B1 (en) * 2003-09-09 2007-03-06 Emc Corporation Techniques for cooling a set of circuit boards within a rack mount cabinet
KR100772084B1 (ko) 2002-05-31 2007-10-31 베라리 시스템즈, 인코포레이티드 컴퓨터 구성품 구조물 및 그 제작 방법
US7308500B1 (en) 2001-03-16 2007-12-11 Symantec Operating Corporation Model for cost optimization and QoS tuning in hosted computing environments
US20080037218A1 (en) * 2006-03-24 2008-02-14 Sharma Viswa M Modular chassis providing scalable mechanical, electrical and environmental functionality for MicroTCA and advanced TCA boards
US20090097200A1 (en) * 2007-04-11 2009-04-16 Viswa Sharma Modular blade for providing scalable mechanical, electrical and environmental functionality in the enterprise using advancedtca boards
US7827442B2 (en) 2006-01-23 2010-11-02 Slt Logic Llc Shelf management controller with hardware/software implemented dual redundant configuration
US20110072151A1 (en) * 2005-08-23 2011-03-24 Viswa Sharma Omni-protocol engine for reconfigurable bit-stream processing in high-speed networks
US20130170138A1 (en) * 2011-12-28 2013-07-04 Fujitsu Limited Electronic device having cooling unit
CN105206585A (zh) * 2014-05-30 2015-12-30 盛美半导体设备(上海)有限公司 框架结构的连接部件
USD840335S1 (en) * 2015-11-30 2019-02-12 IAP Worldwide Services, Inc. Modular power supply station

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FR2343974A1 (fr) * 1976-03-10 1977-10-07 Honeywell Bull Soc Ind Enceinte de ventilation
FR2476962A1 (fr) * 1980-02-22 1981-08-28 Telemecanique Electrique Chassis comportant deux montants paralleles et des supports transversaux en particulier pour le montage d'appareils electriques
GB2124432B (en) * 1982-05-11 1986-04-23 Plessey Co Plc Printed circuit board rack
GB2122032B (en) * 1982-06-19 1985-12-18 Ferranti Plc Electrical circuit assemblies
DE3321321A1 (de) * 1982-06-19 1983-12-22 Ferranti plc, Gatley, Cheadle, Cheshire Elektrische schaltungsanordnung
DE3608046A1 (de) * 1986-03-11 1987-09-24 Nixdorf Computer Ag Baugruppentraeger fuer elektronische und/oder elektromechanische einschubbaugruppen
DE3667583D1 (de) * 1986-03-24 1990-01-18 Benke Instr & Elektro Ag Prozessanalysator-system fuer industrielle prozesse.
US4728160A (en) * 1986-10-22 1988-03-01 Digital Equipment Corporation Cabinet for a computer assembly
AT399799B (de) * 1991-06-11 1995-07-25 Bernecker Erwin Aus einzelnen baugruppen bestehende elektrische anlage
US5353198A (en) * 1992-08-21 1994-10-04 Ag Communication Systems Corporation Side plates for retrofit card file adapter assembly

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US1282557A (en) * 1917-05-09 1918-10-22 Edgar A Feldtkeller Adjustable stock-rack.
US1813045A (en) * 1930-01-20 1931-07-07 Tidal Oil Company Engine frame
US2756369A (en) * 1953-01-19 1956-07-24 Bailey Meter Co Panel support structures
US3052363A (en) * 1959-01-22 1962-09-04 Tab Products Co Multiple purpose filing cabinet
US2991140A (en) * 1959-07-06 1961-07-04 Amco Eng Enclosure
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US3119643A (en) * 1962-07-12 1964-01-28 Blickman Inc Laboratory cabinet
US3506322A (en) * 1967-10-31 1970-04-14 Weston Instruments Inc Fabricated frame and housing

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044943A2 (de) * 1980-07-28 1982-02-03 International Business Machines Corporation Vorrichtung und Verfahren zum Montieren und Verpacken von Datenverarbeitungsanlagen
EP0044943A3 (de) * 1980-07-28 1982-06-23 International Business Machines Corporation Vorrichtung und Verfahren zum Montieren und Verpacken von Datenverarbeitungsanlagen
US4508228A (en) * 1981-06-29 1985-04-02 Rittal-Csm Limited Card frames
EP0089401A2 (de) * 1982-03-19 1983-09-28 Siemens-Albis Aktiengesellschaft Zwangsbelüfteter Baugruppenträger
EP0089401A3 (de) * 1982-03-19 1986-05-14 Siemens-Albis Aktiengesellschaft Zwangsbelüfteter Baugruppenträger
US4699270A (en) * 1985-09-09 1987-10-13 The Union Corporation Modular packaging system
EP0312372A2 (de) * 1987-10-15 1989-04-19 BICC Public Limited Company Kühlungssystem für elektronische Anlage
EP0312372A3 (de) * 1987-10-15 1989-12-20 BICC Public Limited Company Kühlungssystem für elektronische Anlage
US5112119A (en) * 1989-10-27 1992-05-12 International Business Machines Corp. Support structure for devices in a computer apparatus
EP0470926A1 (de) * 1990-08-07 1992-02-12 Elma Electronic Ag Luftkühlung von mit Leiterplatten bestückten Steuerschränken
CH680693A5 (de) * 1990-08-07 1992-10-15 Sulzer Ag
US5210680A (en) * 1990-08-07 1993-05-11 Sulzer Brothers Limited Card cage having an air cooling system
EP0617570A1 (de) * 1993-03-20 1994-09-28 International Business Machines Corporation Modulgehäuse
US5412534A (en) * 1993-03-20 1995-05-02 International Business Machines Corporation Modular housing
EP0786930A1 (de) * 1996-01-23 1997-07-30 Siemens Aktiengesellschaft Gehäuse für einen flachen Lüftereinschub
WO1997034346A1 (de) * 1996-03-13 1997-09-18 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Modularer gehäuseaufbau
US6109053A (en) * 1996-03-13 2000-08-29 Rittal-Werk Rudolf Loh Gmbh & Co. Modular casing structure
JP3497173B2 (ja) 1996-11-19 2004-02-16 リッタル―ヴェルク ルードルフ ロー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト 配電盤キャビネット
US5806948A (en) * 1997-06-16 1998-09-15 Rowan, Sr.; W. Frank Retrofittable battery cabinet for telecommunications enclosures
US6229696B1 (en) * 1998-08-31 2001-05-08 Hon Hai Precisin Ind. Co., Ltd. Movable frame for retaining a component in a computer enclosure
US6262888B1 (en) * 1999-06-30 2001-07-17 Dell Usa, L.P. Impact damping system for peripheral device
US6557624B1 (en) * 2000-08-09 2003-05-06 Liebert Corporation Configurable system and method for cooling a room
US7308500B1 (en) 2001-03-16 2007-12-11 Symantec Operating Corporation Model for cost optimization and QoS tuning in hosted computing environments
US7113991B1 (en) * 2001-03-16 2006-09-26 Veritas Operating Corporation Model for cost optimization and QoS tuning in hosted computing environments
US6499609B2 (en) * 2001-06-04 2002-12-31 Hyperchip Inc. Compact shelf unit for electronic equipment rack
US20030223199A1 (en) * 2002-05-31 2003-12-04 Racksaver, Inc. Rack mountable computer component and method of making same
KR100772084B1 (ko) 2002-05-31 2007-10-31 베라리 시스템즈, 인코포레이티드 컴퓨터 구성품 구조물 및 그 제작 방법
US6836030B2 (en) 2002-05-31 2004-12-28 Verari Systems, Inc. Rack mountable computer component power distribution unit and method
US20050024825A1 (en) * 2002-05-31 2005-02-03 Smith John V. Rack mountable computer component fan cooling arrangement and method
US6867966B2 (en) * 2002-05-31 2005-03-15 Verari Systems, Inc. Method and apparatus for rack mounting computer components
US20050083651A1 (en) * 2002-05-31 2005-04-21 Smith John V. Method and apparatus for rack mounting computer components
US6909611B2 (en) 2002-05-31 2005-06-21 Verari System, Inc. Rack mountable computer component and method of making same
US6801428B2 (en) 2002-05-31 2004-10-05 Racksaver, Inc. Rack mountable computer component fan cooling arrangement and method
US20030224645A1 (en) * 2002-05-31 2003-12-04 Racksaver, Inc. Rack mountable computer component power distribution unit and method
US7420805B2 (en) 2002-05-31 2008-09-02 Verari Systems, Inc. Method and apparatus for rack mounting computer components
US20040057216A1 (en) * 2002-09-25 2004-03-25 Smith John V. Electronic component rack assembly and method
US7187547B1 (en) * 2003-09-09 2007-03-06 Emc Corporation Techniques for cooling a set of circuit boards within a rack mount cabinet
US20060123021A1 (en) * 2004-12-06 2006-06-08 Byers Charles C Hierarchical packaging for telecommunications and computing platforms
US20060248380A1 (en) * 2005-04-27 2006-11-02 Hitachi, Ltd. Disk array device
US8189599B2 (en) 2005-08-23 2012-05-29 Rpx Corporation Omni-protocol engine for reconfigurable bit-stream processing in high-speed networks
US20110072151A1 (en) * 2005-08-23 2011-03-24 Viswa Sharma Omni-protocol engine for reconfigurable bit-stream processing in high-speed networks
US7827442B2 (en) 2006-01-23 2010-11-02 Slt Logic Llc Shelf management controller with hardware/software implemented dual redundant configuration
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Also Published As

Publication number Publication date
DE2324755A1 (de) 1973-11-29
GB1418417A (en) 1975-12-17
FR2184443A1 (de) 1973-12-28
IT987658B (it) 1975-03-20
FR2184443B1 (de) 1978-12-08

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