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US6660932B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Dynamically moveable exhausting EMC sealing system

Assignee: International Business Machines Corp
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Filing: 2002-06-05
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Granted: 2003-12-09
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Expires: 2022-06-05
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Abstract

Abstract A docking apparatus for printed circuit boards including a cassette housing, having a housing base, a housing cover and a housing wall, wherein the housing base and the housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit card and wherein the housing wall includes a cable opening disposed so as to be communicated with the housing cavity, a housing bezel, disposed relative to the cassette housing so as to be associated with the cable opening, the housing bezel includes an outer bezel having a first plurality of openings and an inner bezel having a second plurality of apertures, the inner bezel in electrical communication with the printed circuit card, wherein said housing bezel is removable, and an EMC gasket disposed between the outer and inner bezels of said housing bezel, the EMC gasket configured to provide a removable EMC seal proximate the cable opening while still allowing airflow through the first and second plurality of apertures having the EMC gasket therebetween.

Inventors

  • 👤 Dennis R. Barringer
  • 👤 Edward J. Seminaro
  • 👤 Harold M. Toffler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:43
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 172 words
A docking apparatus for printed circuit boards comprising: a cassette housing, having a housing base, a housing cover and a housing wall, wherein said housing base and said housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit card and wherein said housing wall includes a cable opening disposed so as to be communicated with said housing cavity; a housing bezel, disposed relative to said cassette housing so as to be associated with said cable opening, said housing bezel includes an outer bezel having a first plurality of openings and an inner bezel having a second plurality of apertures, said inner bezel in electrical communication with said printed circuit card, wherein said housing bezel is removable; and an EMC gasket disposed between said outer and inner bezels of said housing bezel, said EMC gasket configured to provide a removable EMC seal proximate said cable opening while still allowing airflow through said first and second plurality of apertures having said EMC gasket therebetween.
Claim 2
Dependent Claim 172 words
A docking apparatus for printed circuit boards comprising: a cassette housing, having a housing base, a housing cover and a housing wall, wherein said housing base and said housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit card and wherein said housing wall includes a cable opening disposed so as to be communicated with said housing cavity; a housing bezel, disposed relative to said cassette housing so as to be associated with said cable opening, said housing bezel includes an outer bezel having a first plurality of openings and an inner bezel having a second plurality of apertures, said inner bezel in electrical communication with said printed circuit card, wherein said housing bezel is removable; and an EMC gasket disposed between said outer and inner bezels of said housing bezel, said EMC gasket configured to provide a removable EMC seal proximate said cable opening while still allowing airflow through said first and second plurality of apertures having said EMC gasket therebetween.
Claim 3
Dependent Claim 24 words
The docking apparatus according to claim 1 , wherein said first and second plurality of openings provide airflow to cool said printed circuit board.
Claim 4
Dependent Claim 53 words
The docking apparatus according to claim 1 , wherein said outer bezel provides said EMC seal having electrical engagement with said inner bezel that is in electrical contact with said printed circuit card, said printed circuit card is in electrical contact with said housing base, and said housing base is referenced to ground.
Claim 5
Dependent Claim 25 words
The docking apparatus according to claim 3 , wherein said housing base, said outer bezel and said inner bezel are made from a metallic material.
Claim 6
Dependent Claim 109 words
The docking apparatus according to claim 1 , wherein said outer bezel includes a first flange having said first plurality of openings configured therein to form two rows of vent holes along a portion of a length of said first flange, said inner bezel includes a second flange configured having said second plurality of openings aligned with said two rows of vents holes, said EMC gasket configured with corresponding apertures substantially aligned with said vent holes and said second plurality of openings to allow air flow therethrough while removably secured in a gap formed between said first and second flanges of said housing bezel to form said EMC seal.
Claim 7
Dependent Claim 80 words
The docking apparatus according to claim 5 , wherein said EMC gasket is configured to removably attach to said second flange of said inner bezel and align said second plurality of openings in said inner bezel with said corresponding apertures in said gasket, said gasket configured to provide compressible contact with said first flange of said outer bezel to provide said EMC seal while still allowing airflow through said first and second plurality of openings having said gasket disposed therebetween.
Claim 8
Dependent Claim 36 words
The docking apparatus according to claim 1 , wherein said EMC gasket is configured to form said EMC seal at a gap formed between said inner and outer bezels while still allowing airflow through said gap.
Claim 9
Dependent Claim 103 words
The docking apparatus according to claim 7 , wherein said EMC gasket comprises: a thin metal strip having a corresponding plurality of apertures along a surface defining a length thereof aligned with said second plurality of holes of said inner bezel; a plurality of clips extending from at least one edge defining said surface, said clips configured to removably secure said gasket to said inner bezel; and a plurality of compressible contacts extending toward said outer bezel from said surface to make electrical contact with said outer bezel to form said EMC seal while allowing airflow in and out of said housing cavity.
Claim 10
Dependent Claim 50 words
The docking apparatus according to claim 8 , wherein at least one of said plurality of contacts is configured having a plurality of spokes forming a compressible structure, each spoke extending radially inwardly from an edge defining each of said corresponding plurality of apertures to join with said each spoke.
Claim 11
Dependent Claim 27 words
The docking apparatus according to claim 9 , wherein said each spoke includes at least bend along a length thereof to facilitate compression of said compressible structure.
Claim 12
Dependent Claim 36 words
The docking apparatus according to claim 1 , wherein said first and second plurality of openings are in coaction with a plurality of vents formed on a portion of said housing wall opposite said cable opening.
Claim 13
Dependent Claim 23 words
The docking apparatus according to claim 1 , wherein contact between said outer and inner bezels via EMC gasket is via metal contact.
Claim 14
Dependent Claim 34 words
The docking apparatus according to claim 1 , wherein said inner bezel includes a lip configured to electrically connect with said printed circuit card that is connected to said housing base referenced to ground.
Claim 15
Dependent Claim 33 words
The docking apparatus according to claim 1 , wherein said housing bezel and said cassette housing are removably secured with each other using one of a screw, a clip and a press-fit assembly.
Claim 16
Dependent Claim 25 words
The docking apparatus according to claim 1 , wherein said housing bezel and said cassette housing are removably secured with each other using a clip.
Claim 17
Dependent Claim 109 words
A docking apparatus comprising: a printed circuit card; a cassette housing having a mounting device and defining a housing cavity for movably containing said printed circuit card, said mounting device is disposed within said housing cavity so as to slidingly contain said printed circuit card within said housing cavity; and a housing bezel having a plurality of openings and a removable EMC gasket configured to removably seal against EMC and allow airflow to said printed circuit card disposed within said housing cavity so as to be in communication with said printed circuit card while providing an EMC seal when said outer bezel is removably engaged with said cassette housing.
Claim 18
Dependent Claim 109 words
A docking apparatus comprising: a printed circuit card; a cassette housing having a mounting device and defining a housing cavity for movably containing said printed circuit card, said mounting device is disposed within said housing cavity so as to slidingly contain said printed circuit card within said housing cavity; and a housing bezel having a plurality of openings and a removable EMC gasket configured to removably seal against EMC and allow airflow to said printed circuit card disposed within said housing cavity so as to be in communication with said printed circuit card while providing an EMC seal when said outer bezel is removably engaged with said cassette housing.
Claim 19
Dependent Claim 31 words
The docking apparatus according to claim 16 , wherein said EMC gasket is a metallic material configured to allow said card extraction and insertion while still making a suitable ground contact.
Claim 20
Dependent Claim 21 words
The docking apparatus according to claim 17 , wherein said EMC gasket is configured for use in differently configured housing bezels.
Claim 21
Dependent Claim 69 words
The docking apparatus according to claim 18 , wherein said housing bezel comprises: an outer bezel having a first plurality of openings; and an inner bezel having a second plurality of openings substantially aligned with said first plurality of openings, said inner bezel is configured to be received in said outer bezel having said EMC gasket therebetween providing said EMC seal and allowing airflow to said printed circuit board.
Claim 22
Dependent Claim 42 words
The docking apparatus according to claim 16 , further comprising: a plurality of vents formed on a one side of said wall coacting with said plurality of openings in the top of said housing bezel to aid air flowing through said housing.
Claim 23
Independent Claim 251 words
An apparatus for providing a thermal protection and electromagnetic conduction seal in a docking apparatus having a printed circuit card disposed therein for connection to a system backplane, said apparatus comprising: a conductive cassette housing, having a housing base, a housing cover and a housing wall, wherein said housing base and said housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit card and wherein said housing wall includes a cable opening disposed so as to be communicated with said housing cavity and a connector opening for a connector exposed in said connector opening for mating and connection with the system backplane; a housing bezel, wherein said housing bezel is disposed relative to said cassette housing so as to be associated with said cable opening, wherein said housing bezel is removable, said housing bezel including a plurality of openings in the top of said housing bezel for the flow of cooling air; an EMC gasket providing an EMC seal between said top of said cassette housing and a bottom surface of said top of said housing bezel, said EMC gasket configured to provide thermal protection and electromagnetic conduction seal to said printed circuit card; and a plurality of vents formed on one side of said wall coacting with said plurality of openings in said plurality of openings in the top of said housing bezel to aid air flowing through said housing and providing electromagnetic shielding for said circuit card positioned within.
Claim 24
Independent Claim 251 words
An apparatus for providing a thermal protection and electromagnetic conduction seal in a docking apparatus having a printed circuit card disposed therein for connection to a system backplane, said apparatus comprising: a conductive cassette housing, having a housing base, a housing cover and a housing wall, wherein said housing base and said housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit card and wherein said housing wall includes a cable opening disposed so as to be communicated with said housing cavity and a connector opening for a connector exposed in said connector opening for mating and connection with the system backplane; a housing bezel, wherein said housing bezel is disposed relative to said cassette housing so as to be associated with said cable opening, wherein said housing bezel is removable, said housing bezel including a plurality of openings in the top of said housing bezel for the flow of cooling air; an EMC gasket providing an EMC seal between said top of said cassette housing and a bottom surface of said top of said housing bezel, said EMC gasket configured to provide thermal protection and electromagnetic conduction seal to said printed circuit card; and a plurality of vents formed on one side of said wall coacting with said plurality of openings in said plurality of openings in the top of said housing bezel to aid air flowing through said housing and providing electromagnetic shielding for said circuit card positioned within.
Claim 25
Dependent Claim 28 words
The apparatus according to claim 21 , wherein said plurality of vents are formed on a side distal from said plurality of vents formed in said housing bezel.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-12-08 2007-06-09 2007-12-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-12-08 2011-06-09 2011-12-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-12-08 2015-06-09 2015-12-09 $7700.00 Window Closed / Lapsed

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