Browse Prior Art Database

Easily Mountable Extruded Elastomer Electromagnetic Interference Gasket

IP.com Disclosure Number: IPCOM000110613D
Original Publication Date: 1992-Dec-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Rice, JL: AUTHOR

Abstract

Disclosed is a conductive elastomer electromagnetic interference (EMI) gasket system designed for easy mounting to a machine chassis or cover.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Easily Mountable Extruded Elastomer Electromagnetic Interference Gasket

       Disclosed is a conductive elastomer electromagnetic
interference (EMI) gasket system designed for easy mounting to a
machine chassis or cover.

      The disclosed system consists of an extruded conductive
elastomer gasket with a cross-section that has an internal slot (as
shown in Fig. 1a) and push-in studs of an elastomeric material (which
would be injection molded) (Fig. 1b).  Holes are punched into the
surface to which the gasket will mount (Fig. 1c).  The push-in studs
are then pushed into the holes in the surface.  The intervals at
which the holes are located would be whatever is necessary to provide
mechanical stability.  However, they need not be even intervals, but
could be spaced as convenient along the surface to which the gasket
is to mount since there is no locational requirement between the
gasket strip and the mounting studs.  The gasket strip internal slot
is then pushed over the other end of the mounting studs and so is
attached to the surface.  The internal slot of the gasket could
either be a negative shape to the shape of the push-in stud head or a
straight slot with retaining fins (Figs. 2a and 2b).  EMI ground
contact is made through the gasket to surface interfaces.  Fig. 3
shows how this would work in practice for several configurations.