Covers for Personal Computer Adapter Card Ports
Original Publication Date: 1987-Mar-01
Included in the Prior Art Database: 2005-Feb-01
Fig. 1 illustrates a unique arrangement of sealing the card adapter port plate area of IBM-style Personal Computers (PCs) to better contain and reduce Electro-Magnetic Interference (EMI) emissions. The port plate cover eliminates the need for dummy port plates that are no longer needed as feature cards are installed. The port plate cover is made of a thin plastic material with an electrically conductive coating or laminate, such as aluminum or copper. The port plate cover may be made of sheet material, die cut and formed or vacuum formed. The cover 10 is formed so that after snap-in installation, the cover is biased so that it lays against the bulkhead on the vertical surfaces 11 and the top surfaces 12. The port areas to be removed are die cut through at the two top corners 13 and the bottom radius 14.