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US 4,821,145 AGranted
Pluggable assembly for printed circuit cards
AssigneeInternational Business Machines Corporation
InventorsWilliam D. Corfits, Claude J. Mosley, Jerry R. Rasmussen, Stephen E. Wheeler
Life of this patent
Estimating the term…
Abstract
A pluggable assembly for enclosing printed circuit cards used in electronic devices. The enclosure is completely shielded and is particularly adapted to use in circumstances where unskilled persons either plug or unplug the assembly into a backplane assembly.
Claims7
A shielded enclosure assembly for connection of a circuit card to a system backplane, comprising:
- a. a conductive housing having a top, a bottom, a back and a first connector positioned on said back for mating and connection with a system backplane;
- b. a circuit card positioned within said housing and connected to a first connector;
- c. a plurality of openings in the top and bottom of said housing for the flow of cooling air;
- d. at least one grounding spring affixed to said top and bottom for engagement with a surface of said system backplane;
- and,
- e. a solid conductive front portion and solid conductive side portions coacting with said back to constrain air flowing through said housing and providing electromagnetic shielding for said circuit card positioned within.
3 more elements
A shielded enclosure assembly for shielding and cooling a printed circuit card to be connected to a system backplane, comprising:
- a. a housing of conductive material having a flat back portion for engagement with grounding springs on said system backplane and a top, a bottom and sides;
- b. a circuit card positioned within said housing spaced from said sides thereof;
- c. a connector positioned on said back, connected to said circuit card, for plugging to said system backplane;
- d. a plurality of openings in said top and bottom of said housing for the flow of cooling air over both sides of said circuit card;
- e. first and second grounding springs positioned on said top and bottom, respectively, for grounding engagement with said backplane;
- and,
- f. handle means, pivotally mounted at a front of said housing, for camming removal of said housing from said system backplane.
4 more elements
Dependencies are inferred from the claim text.