公开(公告)号：GB2241117A

公开(公告)日：1991-08-21

申请号：GB9003471

申请日：1990-02-15

Applicant: IBM

Inventor： GOLLEDGE IAN ,  COLES RICHARD JOHN

IPC: H05K9/00

Abstract: Electrical devices are located within a cavity in a chassis. An electromagnetic seal (10) is fitted to prevent electromagnetic interference passing down the air gap between the device and the chassis. The seal comprises a helical coil spring which makes regular electrical contact from the device to the chassis. The coil is under lateral compression between the device and the chassis to enhance this electrical contact.

公开(公告)号：SG44677A1

公开(公告)日：1997-12-19

申请号：SG1996005409

申请日：1993-07-26

Applicant: IBM

Inventor： GAUNT DAVID SYDNEY ,  COLES RICHARD JOHN ,  BOLTON IVOR WILLIAM

IPC: F04D17/16

公开(公告)号：GB2270117A

公开(公告)日：1994-03-02

申请号：GB9217738

申请日：1992-08-20

Applicant: IBM

Inventor： GAUNT DAVID SYDNEY ,  COLES RICHARD JOHN ,  BOLTON IVOR WILLIAM

IPC: F04D17/16 ,  F04D29/26