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Shark Tooth Lap Joint for Electromagnetic Compatibility Boundaries

IP.com Disclosure Number: IPCOM000116943D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Mroz, SP: AUTHOR [+3]

Abstract

A lap joint is disclosed which allows multiple devices to share a common mounting flange. The joint allows the mounting flange to be of minimal width while minimizing Electromagnetic Compatibility (EMC) leakage at the common joint.

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Shark Tooth Lap Joint for Electromagnetic Compatibility Boundaries

      A lap joint is disclosed which allows multiple devices to share
a common mounting flange.  The joint allows the mounting flange to be
of minimal width while minimizing Electromagnetic Compatibility (EMC)
leakage at the common joint.

      By interlocking the device flanges in a 'shark tooth' pattern
(1), each device retains a maximum contact area while still requiring
only a single width mounting flange (2).  The mating flange (3) only
needs to be wide enough for a single row of fasteners in the EMC
overlap area.

      The misalignment between the top and bottom devices relative to
the mounting flange can be relatively large while the opening formed
at the apexes of the triangular 'shark tooth' (4) remains small.
This
opening presents a small EMC aperture size.