EMC gasket with Extended Winged Adhesive Strips to allow application and conformance to various-shaped surfaces, and ensure better adhesion in difficult shear applications.
Publication Date: 2013-Apr-18
The IP.com Prior Art Database
Disclosed is a variation of EMC gasket design, with extended winged adhesive strips extending beyond the foam profile, to allow application and conformance to various-shaped surfaces, and ensure better adhesion in difficult shear applications.
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EMC gasket with Extended Winged Adhesive Strips to allow application and conformance to various -
shaped surfaces , ,
Multiple problems which arise with self adhesive gaskets, which are solved by this invention:
Gaskets can get removed or moved out of place by sheer force and/or other forces.
Sometimes, there is not enough adhesive on gaskets for good adhesion, the adhesive
deteriorates over time, or it is a poor selection of adhesive to begin with.
It is hard to attach a gasket to a non-flat or curved surface.
The "gap" between two adhesive strips on gasket is the only place for EMC/EMI conductivity
and is often a small gap.
This invention aims to mitigate the sheer force(s) experienced by a typical fabric-over-foam gasket implementation. It relies on distributed adhesive wings beyond the foam profile to attach the gasket to the substrate material. In one example, these wings may extend from both the left and right edges (looking at side view) of a typical D-shaped gasket profile; in another implementation the wing may extend from solely one side.
Gasket will not come off as easily with shear force.
Better adhesion to most any profile.
Conformable to a non-flat surface (if it needs to be adhered to an edge or a curve, the fabric
would wrap around/conform to that surface).
More conductive fabric remains uncovered for contact to chassis ground, between the
extended wings with adhesive, possibly improving conduction performance.