Patent ID: 7082037

Claim:
An electronic card of the type that has a circuit board and a sheet metal cover that surrounds a majority of the circuit board, wherein the cover includes top and bottom sheet metal cover parts with bases that each lies primarily in a horizontal plane and has laterally opposite sides, each of said cover parts having a lateral middle lying inward of said major sides, laterally-spaced largely vertical opposite side walls and longitudinally-spaced opposite ends, wherein: a first side of a first of said cover parts has a first sheet metal horizontal middle wall and a plurality of longitudinally-spaced lugs extending therefrom, each lug having inner and outer legs and a fold that joins them, one of said legs having a free end; a first side of a second of said cover parts includes a second sheet metal horizontal middle wall that abuts said first middle wall, said middle slot wall having a plurality of slots, each slot having inner and outer slot sides and having a width between said slot sides which is chosen to receive one of said lugs only by deflecting the legs of the lug closer together, the free end of each lug that is received under the horizontal second slot wall being positioned to abut said sheet metal horizontal second wall when said front and second cover parts start, to separate to prevent such separation.